diff options
Diffstat (limited to 'fs')
76 files changed, 1627 insertions, 1371 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index 18f74ec4dce..9d03d1ebca6 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -1001,44 +1001,6 @@ done: } /** - * v9fs_vfs_readlink - read a symlink's location - * @dentry: dentry for symlink - * @buffer: buffer to load symlink location into - * @buflen: length of buffer - * - */ - -static int v9fs_vfs_readlink(struct dentry *dentry, char __user * buffer, - int buflen) -{ - int retval; - int ret; - char *link = __getname(); - - if (unlikely(!link)) - return -ENOMEM; - - if (buflen > PATH_MAX) - buflen = PATH_MAX; - - P9_DPRINTK(P9_DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_name.name, - dentry); - - retval = v9fs_readlink(dentry, link, buflen); - - if (retval > 0) { - if ((ret = copy_to_user(buffer, link, retval)) != 0) { - P9_DPRINTK(P9_DEBUG_ERROR, - "problem copying to user: %d\n", ret); - retval = ret; - } - } - - __putname(link); - return retval; -} - -/** * v9fs_vfs_follow_link - follow a symlink path * @dentry: dentry for symlink * @nd: nameidata @@ -1230,7 +1192,6 @@ static const struct inode_operations v9fs_dir_inode_operations_ext = { .rmdir = v9fs_vfs_rmdir, .mknod = v9fs_vfs_mknod, .rename = v9fs_vfs_rename, - .readlink = v9fs_vfs_readlink, .getattr = v9fs_vfs_getattr, .setattr = v9fs_vfs_setattr, }; @@ -1253,7 +1214,7 @@ static const struct inode_operations v9fs_file_inode_operations = { }; static const struct inode_operations v9fs_symlink_inode_operations = { - .readlink = v9fs_vfs_readlink, + .readlink = generic_readlink, .follow_link = v9fs_vfs_follow_link, .put_link = v9fs_vfs_put_link, .getattr = v9fs_vfs_getattr, diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index 14a86448572..69357c0d989 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -188,7 +188,8 @@ static void v9fs_kill_super(struct super_block *s) P9_DPRINTK(P9_DEBUG_VFS, " %p\n", s); - v9fs_dentry_release(s->s_root); /* clunk root */ + if (s->s_root) + v9fs_dentry_release(s->s_root); /* clunk root */ kill_anon_super(s); diff --git a/fs/affs/affs.h b/fs/affs/affs.h index e511dc621a2..0e40caaba45 100644 --- a/fs/affs/affs.h +++ b/fs/affs/affs.h @@ -106,8 +106,8 @@ struct affs_sb_info { u32 s_last_bmap; struct buffer_head *s_bmap_bh; char *s_prefix; /* Prefix for volumes and assigns. */ - int s_prefix_len; /* Length of prefix. */ char s_volume[32]; /* Volume prefix for absolute symlinks. */ + spinlock_t symlink_lock; /* protects the previous two */ }; #define SF_INTL 0x0001 /* International filesystem. */ diff --git a/fs/affs/namei.c b/fs/affs/namei.c index 960d336ec69..d70bbbac6b7 100644 --- a/fs/affs/namei.c +++ b/fs/affs/namei.c @@ -341,10 +341,13 @@ affs_symlink(struct inode *dir, struct dentry *dentry, const char *symname) p = (char *)AFFS_HEAD(bh)->table; lc = '/'; if (*symname == '/') { + struct affs_sb_info *sbi = AFFS_SB(sb); while (*symname == '/') symname++; - while (AFFS_SB(sb)->s_volume[i]) /* Cannot overflow */ - *p++ = AFFS_SB(sb)->s_volume[i++]; + spin_lock(&sbi->symlink_lock); + while (sbi->s_volume[i]) /* Cannot overflow */ + *p++ = sbi->s_volume[i++]; + spin_unlock(&sbi->symlink_lock); } while (i < maxlen && (c = *symname++)) { if (c == '.' && lc == '/' && *symname == '.' && symname[1] == '/') { diff --git a/fs/affs/super.c b/fs/affs/super.c index 104fdcb3a7f..d41e9673cd9 100644 --- a/fs/affs/super.c +++ b/fs/affs/super.c @@ -203,7 +203,7 @@ parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s switch (token) { case Opt_bs: if (match_int(&args[0], &n)) - return -EINVAL; + return 0; if (n != 512 && n != 1024 && n != 2048 && n != 4096) { printk ("AFFS: Invalid blocksize (512, 1024, 2048, 4096 allowed)\n"); @@ -213,7 +213,7 @@ parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s break; case Opt_mode: if (match_octal(&args[0], &option)) - return 1; + return 0; *mode = option & 0777; *mount_opts |= SF_SETMODE; break; @@ -221,8 +221,6 @@ parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s *mount_opts |= SF_MUFS; break; case Opt_prefix: - /* Free any previous prefix */ - kfree(*prefix); *prefix = match_strdup(&args[0]); if (!*prefix) return 0; @@ -233,21 +231,21 @@ parse_options(char *options, uid_t *uid, gid_t *gid, int *mode, int *reserved, s break; case Opt_reserved: if (match_int(&args[0], reserved)) - return 1; + return 0; break; case Opt_root: if (match_int(&args[0], root)) - return 1; + return 0; break; case Opt_setgid: if (match_int(&args[0], &option)) - return 1; + return 0; *gid = option; *mount_opts |= SF_SETGID; break; case Opt_setuid: if (match_int(&args[0], &option)) - return -EINVAL; + return 0; *uid = option; *mount_opts |= SF_SETUID; break; @@ -311,11 +309,14 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent) return -ENOMEM; sb->s_fs_info = sbi; mutex_init(&sbi->s_bmlock); + spin_lock_init(&sbi->symlink_lock); if (!parse_options(data,&uid,&gid,&i,&reserved,&root_block, &blocksize,&sbi->s_prefix, sbi->s_volume, &mount_flags)) { printk(KERN_ERR "AFFS: Error parsing options\n"); + kfree(sbi->s_prefix); + kfree(sbi); return -EINVAL; } /* N.B. after this point s_prefix must be released */ @@ -516,14 +517,18 @@ affs_remount(struct super_block *sb, int *flags, char *data) unsigned long mount_flags; int res = 0; char *new_opts = kstrdup(data, GFP_KERNEL); + char volume[32]; + char *prefix = NULL; pr_debug("AFFS: remount(flags=0x%x,opts=\"%s\")\n",*flags,data); *flags |= MS_NODIRATIME; + memcpy(volume, sbi->s_volume, 32); if (!parse_options(data, &uid, &gid, &mode, &reserved, &root_block, - &blocksize, &sbi->s_prefix, sbi->s_volume, + &blocksize, &prefix, volume, &mount_flags)) { + kfree(prefix); kfree(new_opts); return -EINVAL; } @@ -534,6 +539,14 @@ affs_remount(struct super_block *sb, int *flags, char *data) sbi->s_mode = mode; sbi->s_uid = uid; sbi->s_gid = gid; + /* protect against readers */ + spin_lock(&sbi->symlink_lock); + if (prefix) { + kfree(sbi->s_prefix); + sbi->s_prefix = prefix; + } + memcpy(sbi->s_volume, volume, 32); + spin_unlock(&sbi->symlink_lock); if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) { unlock_kernel(); diff --git a/fs/affs/symlink.c b/fs/affs/symlink.c index 41782539c90..ee00f08c4f5 100644 --- a/fs/affs/symlink.c +++ b/fs/affs/symlink.c @@ -20,7 +20,6 @@ static int affs_symlink_readpage(struct file *file, struct page *page) int i, j; char c; char lc; - char *pf; pr_debug("AFFS: follow_link(ino=%lu)\n",inode->i_ino); @@ -32,11 +31,15 @@ static int affs_symlink_readpage(struct file *file, struct page *page) j = 0; lf = (struct slink_front *)bh->b_data; lc = 0; - pf = AFFS_SB(inode->i_sb)->s_prefix ? AFFS_SB(inode->i_sb)->s_prefix : "/"; if (strchr(lf->symname,':')) { /* Handle assign or volume name */ + struct affs_sb_info *sbi = AFFS_SB(inode->i_sb); + char *pf; + spin_lock(&sbi->symlink_lock); + pf = sbi->s_prefix ? sbi->s_prefix : "/"; while (i < 1023 && (c = pf[i])) link[i++] = c; + spin_unlock(&sbi->symlink_lock); while (i < 1023 && lf->symname[j] != ':') link[i++] = lf->symname[j++]; if (i < 1023) diff --git a/fs/bfs/inode.c b/fs/bfs/inode.c index 6f60336c662..8f3d9fd8960 100644 --- a/fs/bfs/inode.c +++ b/fs/bfs/inode.c @@ -353,35 +353,35 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent) struct inode *inode; unsigned i, imap_len; struct bfs_sb_info *info; - long ret = -EINVAL; + int ret = -EINVAL; unsigned long i_sblock, i_eblock, i_eoff, s_size; info = kzalloc(sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; + mutex_init(&info->bfs_lock); s->s_fs_info = info; sb_set_blocksize(s, BFS_BSIZE); - bh = sb_bread(s, 0); - if(!bh) + info->si_sbh = sb_bread(s, 0); + if (!info->si_sbh) goto out; - bfs_sb = (struct bfs_super_block *)bh->b_data; + bfs_sb = (struct bfs_super_block *)info->si_sbh->b_data; if (le32_to_cpu(bfs_sb->s_magic) != BFS_MAGIC) { if (!silent) printf("No BFS filesystem on %s (magic=%08x)\n", s->s_id, le32_to_cpu(bfs_sb->s_magic)); - goto out; + goto out1; } if (BFS_UNCLEAN(bfs_sb, s) && !silent) printf("%s is unclean, continuing\n", s->s_id); s->s_magic = BFS_MAGIC; - info->si_sbh = bh; if (le32_to_cpu(bfs_sb->s_start) > le32_to_cpu(bfs_sb->s_end)) { printf("Superblock is corrupted\n"); - goto out; + goto out1; } info->si_lasti = (le32_to_cpu(bfs_sb->s_start) - BFS_BSIZE) / @@ -390,7 +390,7 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent) imap_len = (info->si_lasti / 8) + 1; info->si_imap = kzalloc(imap_len, GFP_KERNEL); if (!info->si_imap) - goto out; + goto out1; for (i = 0; i < BFS_ROOT_INO; i++) set_bit(i, info->si_imap); @@ -398,15 +398,13 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent) inode = bfs_iget(s, BFS_ROOT_INO); if (IS_ERR(inode)) { ret = PTR_ERR(inode); - kfree(info->si_imap); - goto out; + goto out2; } s->s_root = d_alloc_root(inode); if (!s->s_root) { iput(inode); ret = -ENOMEM; - kfree(info->si_imap); - goto out; + goto out2; } info->si_blocks = (le32_to_cpu(bfs_sb->s_end) + 1) >> BFS_BSIZE_BITS; @@ -419,10 +417,8 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent) bh = sb_bread(s, info->si_blocks - 1); if (!bh) { printf("Last block not available: %lu\n", info->si_blocks - 1); - iput(inode); ret = -EIO; - kfree(info->si_imap); - goto out; + goto out3; } brelse(bh); @@ -459,11 +455,8 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent) printf("Inode 0x%08x corrupted\n", i); brelse(bh); - s->s_root = NULL; - kfree(info->si_imap); - kfree(info); - s->s_fs_info = NULL; - return -EIO; + ret = -EIO; + goto out3; } if (!di->i_ino) { @@ -483,11 +476,17 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent) s->s_dirt = 1; } dump_imap("read_super", s); - mutex_init(&info->bfs_lock); return 0; +out3: + dput(s->s_root); + s->s_root = NULL; +out2: + kfree(info->si_imap); +out1: + brelse(info->si_sbh); out: - brelse(bh); + mutex_destroy(&info->bfs_lock); kfree(info); s->s_fs_info = NULL; return ret; diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c index 346b6940536..fdd39709917 100644 --- a/fs/binfmt_aout.c +++ b/fs/binfmt_aout.c @@ -264,6 +264,7 @@ static int load_aout_binary(struct linux_binprm * bprm, struct pt_regs * regs) #else set_personality(PER_LINUX); #endif + setup_new_exec(bprm); current->mm->end_code = ex.a_text + (current->mm->start_code = N_TXTADDR(ex)); diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c index edd90c49003..fd5b2ea5d29 100644 --- a/fs/binfmt_elf.c +++ b/fs/binfmt_elf.c @@ -662,27 +662,6 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) if (elf_interpreter[elf_ppnt->p_filesz - 1] != '\0') goto out_free_interp; - /* - * The early SET_PERSONALITY here is so that the lookup - * for the interpreter happens in the namespace of the - * to-be-execed image. SET_PERSONALITY can select an - * alternate root. - * - * However, SET_PERSONALITY is NOT allowed to switch - * this task into the new images's memory mapping - * policy - that is, TASK_SIZE must still evaluate to - * that which is appropriate to the execing application. - * This is because exit_mmap() needs to have TASK_SIZE - * evaluate to the size of the old image. - * - * So if (say) a 64-bit application is execing a 32-bit - * application it is the architecture's responsibility - * to defer changing the value of TASK_SIZE until the - * switch really is going to happen - do this in - * flush_thread(). - akpm - */ - SET_PERSONALITY(loc->elf_ex); - interpreter = open_exec(elf_interpreter); retval = PTR_ERR(interpreter); if (IS_ERR(interpreter)) @@ -730,9 +709,6 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) /* Verify the interpreter has a valid arch */ if (!elf_check_arch(&loc->interp_elf_ex)) goto out_free_dentry; - } else { - /* Executables without an interpreter also need a personality */ - SET_PERSONALITY(loc->elf_ex); } /* Flush all traces of the currently running executable */ @@ -752,7 +728,8 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs) if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) current->flags |= PF_RANDOMIZE; - arch_pick_mmap_layout(current->mm); + + setup_new_exec(bprm); /* Do this so that we can load the interpreter, if need be. We will change some of these later */ diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c index 7dc85997e96..18d77297ccc 100644 --- a/fs/binfmt_elf_fdpic.c +++ b/fs/binfmt_elf_fdpic.c @@ -171,6 +171,9 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm, #ifdef ELF_FDPIC_PLAT_INIT unsigned long dynaddr; #endif +#ifndef CONFIG_MMU + unsigned long stack_prot; +#endif struct file *interpreter = NULL; /* to shut gcc up */ char *interpreter_name = NULL; int executable_stack; @@ -316,6 +319,11 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm, * defunct, deceased, etc. after this point we have to exit via * error_kill */ set_personality(PER_LINUX_FDPIC); + if (elf_read_implies_exec(&exec_params.hdr, executable_stack)) + current->personality |= READ_IMPLIES_EXEC; + + setup_new_exec(bprm); + set_binfmt(&elf_fdpic_format); current->mm->start_code = 0; @@ -377,9 +385,13 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm, if (stack_size < PAGE_SIZE * 2) stack_size = PAGE_SIZE * 2; + stack_prot = PROT_READ | PROT_WRITE; + if (executable_stack == EXSTACK_ENABLE_X || + (executable_stack == EXSTACK_DEFAULT && VM_STACK_FLAGS & VM_EXEC)) + stack_prot |= PROT_EXEC; + down_write(¤t->mm->mmap_sem); - current->mm->start_brk = do_mmap(NULL, 0, stack_size, - PROT_READ | PROT_WRITE | PROT_EXEC, + current->mm->start_brk = do_mmap(NULL, 0, stack_size, stack_prot, MAP_PRIVATE | MAP_ANONYMOUS | MAP_UNINITIALIZED | MAP_GROWSDOWN, 0); diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c index d4a00ea1054..42c6b4a5444 100644 --- a/fs/binfmt_flat.c +++ b/fs/binfmt_flat.c @@ -519,6 +519,7 @@ static int load_flat_file(struct linux_binprm * bprm, /* OK, This is the point of no return */ set_personality(PER_LINUX_32BIT); + setup_new_exec(bprm); } /* diff --git a/fs/binfmt_som.c b/fs/binfmt_som.c index 2a9b5330cc5..cc8560f6c9b 100644 --- a/fs/binfmt_som.c +++ b/fs/binfmt_som.c @@ -227,6 +227,7 @@ load_som_binary(struct linux_binprm * bprm, struct pt_regs * regs) /* OK, This is the point of no return */ current->flags &= ~PF_FORKNOEXEC; current->personality = PER_HPUX; + setup_new_exec(bprm); /* Set the task size for HP-UX processes such that * the gateway page is outside the address space. @@ -78,7 +78,7 @@ static struct kmem_cache *bio_find_or_create_slab(unsigned int extra_size) i = 0; while (i < bio_slab_nr) { - struct bio_slab *bslab = &bio_slabs[i]; + bslab = &bio_slabs[i]; if (!bslab->slab && entry == -1) entry = i; diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c index 2e9e69987a8..6df6d6ed74f 100644 --- a/fs/btrfs/acl.c +++ b/fs/btrfs/acl.c @@ -112,12 +112,14 @@ static int btrfs_set_acl(struct btrfs_trans_handle *trans, switch (type) { case ACL_TYPE_ACCESS: mode = inode->i_mode; - ret = posix_acl_equiv_mode(acl, &mode); - if (ret < 0) - return ret; - ret = 0; - inode->i_mode = mode; name = POSIX_ACL_XATTR_ACCESS; + if (acl) { + ret = posix_acl_equiv_mode(acl, &mode); + if (ret < 0) + return ret; + inode->i_mode = mode; + } + ret = 0; break; case ACL_TYPE_DEFAULT: if (!S_ISDIR(inode->i_mode)) @@ -242,6 +244,7 @@ int btrfs_init_acl(struct btrfs_trans_handle *trans, ACL_TYPE_ACCESS); } } + posix_acl_release(clone); } failed: posix_acl_release(acl); diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index 9f806dd04c2..2aa8ec6a098 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -1161,6 +1161,7 @@ struct btrfs_root { #define BTRFS_MOUNT_SSD_SPREAD (1 << 8) #define BTRFS_MOUNT_NOSSD (1 << 9) #define BTRFS_MOUNT_DISCARD (1 << 10) +#define BTRFS_MOUNT_FORCE_COMPRESS (1 << 11) #define btrfs_clear_opt(o, opt) ((o) &= ~BTRFS_MOUNT_##opt) #define btrfs_set_opt(o, opt) ((o) |= BTRFS_MOUNT_##opt) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 009e3bd18f2..87b25543d7d 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1993,6 +1993,12 @@ struct btrfs_root *open_ctree(struct super_block *sb, if (!fs_info->fs_root) goto fail_trans_kthread; + if (!(sb->s_flags & MS_RDONLY)) { + down_read(&fs_info->cleanup_work_sem); + btrfs_orphan_cleanup(fs_info->fs_root); + up_read(&fs_info->cleanup_work_sem); + } + return tree_root; fail_trans_kthread: diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 56e50137d0e..432a2da4641 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -83,6 +83,17 @@ static int block_group_bits(struct btrfs_block_group_cache *cache, u64 bits) return (cache->flags & bits) == bits; } +void btrfs_get_block_group(struct btrfs_block_group_cache *cache) +{ + atomic_inc(&cache->count); +} + +void btrfs_put_block_group(struct btrfs_block_group_cache *cache) +{ + if (atomic_dec_and_test(&cache->count)) + kfree(cache); +} + /* * this adds the block group to the fs_info rb tree for the block group * cache @@ -156,7 +167,7 @@ block_group_cache_tree_search(struct btrfs_fs_info *info, u64 bytenr, } } if (ret) - atomic_inc(&ret->count); + btrfs_get_block_group(ret); spin_unlock(&info->block_group_cache_lock); return ret; @@ -407,6 +418,8 @@ err: put_caching_control(caching_ctl); atomic_dec(&block_group->space_info->caching_threads); + btrfs_put_block_group(block_group); + return 0; } @@ -447,6 +460,7 @@ static int cache_block_group(struct btrfs_block_group_cache *cache) up_write(&fs_info->extent_commit_sem); atomic_inc(&cache->space_info->caching_threads); + btrfs_get_block_group(cache); tsk = kthread_run(caching_kthread, cache, "btrfs-cache-%llu\n", cache->key.objectid); @@ -486,12 +500,6 @@ struct btrfs_block_group_cache *btrfs_lookup_block_group( return cache; } -void btrfs_put_block_group(struct btrfs_block_group_cache *cache) -{ - if (atomic_dec_and_test(&cache->count)) - kfree(cache); -} - static struct btrfs_space_info *__find_space_info(struct btrfs_fs_info *info, u64 flags) { @@ -2582,7 +2590,7 @@ next_block_group(struct btrfs_root *root, if (node) { cache = rb_entry(node, struct btrfs_block_group_cache, cache_node); - atomic_inc(&cache->count); + btrfs_get_block_group(cache); } else cache = NULL; spin_unlock(&root->fs_info->block_group_cache_lock); @@ -4227,7 +4235,7 @@ search: u64 offset; int cached; - atomic_inc(&block_group->count); + btrfs_get_block_group(block_group); search_start = block_group->key.objectid; have_block_group: @@ -4315,7 +4323,7 @@ have_block_group: btrfs_put_block_group(block_group); block_group = last_ptr->block_group; - atomic_inc(&block_group->count); + btrfs_get_block_group(block_group); spin_unlock(&last_ptr->lock); spin_unlock(&last_ptr->refill_lock); @@ -7395,9 +7403,7 @@ int btrfs_free_block_groups(struct btrfs_fs_info *info) wait_block_group_cache_done(block_group); btrfs_remove_free_space_cache(block_group); - - WARN_ON(atomic_read(&block_group->count) != 1); - kfree(block_group); + btrfs_put_block_group(block_group); spin_lock(&info->block_group_cache_lock); } diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c index 46bea0f4dc7..428fcac45f9 100644 --- a/fs/btrfs/extent_map.c +++ b/fs/btrfs/extent_map.c @@ -155,20 +155,6 @@ static struct rb_node *__tree_search(struct rb_root *root, u64 offset, return NULL; } -/* - * look for an offset in the tree, and if it can't be found, return - * the first offset we can find smaller than 'offset'. - */ -static inline struct rb_node *tree_search(struct rb_root *root, u64 offset) -{ - struct rb_node *prev; - struct rb_node *ret; - ret = __tree_search(root, offset, &prev, NULL); - if (!ret) - return prev; - return ret; -} - /* check to see if two extent_map structs are adjacent and safe to merge */ static int mergable_maps(struct extent_map *prev, struct extent_map *next) { diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index feaa13b105d..c02033596f0 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -506,7 +506,8 @@ next_slot: } static int extent_mergeable(struct extent_buffer *leaf, int slot, - u64 objectid, u64 bytenr, u64 *start, u64 *end) + u64 objectid, u64 bytenr, u64 orig_offset, + u64 *start, u64 *end) { struct btrfs_file_extent_item *fi; struct btrfs_key key; @@ -522,6 +523,7 @@ static int extent_mergeable(struct extent_buffer *leaf, int slot, fi = btrfs_item_ptr(leaf, slot, struct btrfs_file_extent_item); if (btrfs_file_extent_type(leaf, fi) != BTRFS_FILE_EXTENT_REG || btrfs_file_extent_disk_bytenr(leaf, fi) != bytenr || + btrfs_file_extent_offset(leaf, fi) != key.offset - orig_offset || btrfs_file_extent_compression(leaf, fi) || btrfs_file_extent_encryption(leaf, fi) || btrfs_file_extent_other_encoding(leaf, fi)) @@ -561,6 +563,7 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans, u64 split; int del_nr = 0; int del_slot = 0; + int recow; int ret; btrfs_drop_extent_cache(inode, start, end - 1, 0); @@ -568,6 +571,7 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans, path = btrfs_alloc_path(); BUG_ON(!path); again: + recow = 0; split = start; key.objectid = inode->i_ino; key.type = BTRFS_EXTENT_DATA_KEY; @@ -591,12 +595,60 @@ again: bytenr = btrfs_file_extent_disk_bytenr(leaf, fi); num_bytes = btrfs_file_extent_disk_num_bytes(leaf, fi); orig_offset = key.offset - btrfs_file_extent_offset(leaf, fi); + memcpy(&new_key, &key, sizeof(new_key)); + + if (start == key.offset && end < extent_end) { + other_start = 0; + other_end = start; + if (extent_mergeable(leaf, path->slots[0] - 1, + inode->i_ino, bytenr, orig_offset, + &other_start, &other_end)) { + new_key.offset = end; + btrfs_set_item_key_safe(trans, root, path, &new_key); + fi = btrfs_item_ptr(leaf, path->slots[0], + struct btrfs_file_extent_item); + btrfs_set_file_extent_num_bytes(leaf, fi, + extent_end - end); + btrfs_set_file_extent_offset(leaf, fi, + end - orig_offset); + fi = btrfs_item_ptr(leaf, path->slots[0] - 1, + struct btrfs_file_extent_item); + btrfs_set_file_extent_num_bytes(leaf, fi, + end - other_start); + btrfs_mark_buffer_dirty(leaf); + goto out; + } + } + + if (start > key.offset && end == extent_end) { + other_start = end; + other_end = 0; + if (extent_mergeable(leaf, path->slots[0] + 1, + inode->i_ino, bytenr, orig_offset, + &other_start, &other_end)) { + fi = btrfs_item_ptr(leaf, path->slots[0], + struct btrfs_file_extent_item); + btrfs_set_file_extent_num_bytes(leaf, fi, + start - key.offset); + path->slots[0]++; + new_key.offset = start; + btrfs_set_item_key_safe(trans, root, path, &new_key); + + fi = btrfs_item_ptr(leaf, path->slots[0], + struct btrfs_file_extent_item); + btrfs_set_file_extent_num_bytes(leaf, fi, + other_end - start); + btrfs_set_file_extent_offset(leaf, fi, + start - orig_offset); + btrfs_mark_buffer_dirty(leaf); + goto out; + } + } while (start > key.offset || end < extent_end) { if (key.offset == start) split = end; - memcpy(&new_key, &key, sizeof(new_key)); new_key.offset = split; ret = btrfs_duplicate_item(trans, root, path, &new_key); if (ret == -EAGAIN) { @@ -631,15 +683,18 @@ again: path->slots[0]--; extent_end = end; } + recow = 1; } - fi = btrfs_item_ptr(leaf, path->slots[0], - struct btrfs_file_extent_item); - other_start = end; other_end = 0; - if (extent_mergeable(leaf, path->slots[0] + 1, inode->i_ino, - bytenr, &other_start, &other_end)) { + if (extent_mergeable(leaf, path->slots[0] + 1, + inode->i_ino, bytenr, orig_offset, + &other_start, &other_end)) { + if (recow) { + btrfs_release_path(root, path); + goto again; + } extent_end = other_end; del_slot = path->slots[0] + 1; del_nr++; @@ -650,8 +705,13 @@ again: } other_start = 0; other_end = start; - if (extent_mergeable(leaf, path->slots[0] - 1, inode->i_ino, - bytenr, &other_start, &other_end)) { + if (extent_mergeable(leaf, path->slots[0] - 1, + inode->i_ino, bytenr, orig_offset, + &other_start, &other_end)) { + if (recow) { + btrfs_release_path(root, path); + goto again; + } key.offset = other_start; del_slot = path->slots[0]; del_nr++; @@ -660,22 +720,22 @@ again: inode->i_ino, orig_offset); BUG_ON(ret); } + fi = btrfs_item_ptr(leaf, path->slots[0], + struct btrfs_file_extent_item); if (del_nr == 0) { btrfs_set_file_extent_type(leaf, fi, BTRFS_FILE_EXTENT_REG); btrfs_mark_buffer_dirty(leaf); - goto out; - } - - fi = btrfs_item_ptr(leaf, del_slot - 1, - struct btrfs_file_extent_item); - btrfs_set_file_extent_type(leaf, fi, BTRFS_FILE_EXTENT_REG); - btrfs_set_file_extent_num_bytes(leaf, fi, - extent_end - key.offset); - btrfs_mark_buffer_dirty(leaf); + } else { + btrfs_set_file_extent_type(leaf, fi, + BTRFS_FILE_EXTENT_REG); + btrfs_set_file_extent_num_bytes(leaf, fi, + extent_end - key.offset); + btrfs_mark_buffer_dirty(leaf); - ret = btrfs_del_items(trans, root, path, del_slot, del_nr); - BUG_ON(ret); + ret = btrfs_del_items(trans, root, path, del_slot, del_nr); + BUG_ON(ret); + } out: btrfs_free_path(path); return 0; diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 5440bab2363..8cd109972fa 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -483,7 +483,8 @@ again: nr_pages_ret = 0; /* flag the file so we don't compress in the future */ - BTRFS_I(inode)->flags |= BTRFS_INODE_NOCOMPRESS; + if (!btrfs_test_opt(root, FORCE_COMPRESS)) + BTRFS_I(inode)->flags |= BTRFS_INODE_NOCOMPRESS; } if (will_compress) { *num_added += 1; @@ -3995,7 +3996,11 @@ skip: /* Reached end of directory/root. Bump pos past the last item. */ if (key_type == BTRFS_DIR_INDEX_KEY) - filp->f_pos = INT_LIMIT(off_t); + /* + * 32-bit glibc will use getdents64, but then strtol - + * so the last number we can serve is this. + */ + filp->f_pos = 0x7fffffff; else filp->f_pos++; nopos: @@ -5789,7 +5794,7 @@ out_fail: } static int prealloc_file_range(struct inode *inode, u64 start, u64 end, - u64 alloc_hint, int mode) + u64 alloc_hint, int mode, loff_t actual_len) { struct btrfs_trans_handle *trans; struct btrfs_root *root = BTRFS_I(inode)->root; @@ -5798,6 +5803,7 @@ static int prealloc_file_range(struct inode *inode, u64 start, u64 end, u64 cur_offset = start; u64 num_bytes = end - start; int ret = 0; + u64 i_size; while (num_bytes > 0) { alloc_size = min(num_bytes, root->fs_info->max_extent); @@ -5836,8 +5842,12 @@ static int prealloc_file_range(struct inode *inode, u64 start, u64 end, BTRFS_I(inode)->flags |= BTRFS_INODE_PREALLOC; if (!(mode & FALLOC_FL_KEEP_SIZE) && cur_offset > inode->i_size) { - i_size_write(inode, cur_offset); - btrfs_ordered_update_i_size(inode, cur_offset, NULL); + if (cur_offset > actual_len) + i_size = actual_len; + else + i_size = cur_offset; + i_size_write(inode, i_size); + btrfs_ordered_update_i_size(inode, i_size, NULL); } ret = btrfs_update_inode(trans, root, inode); @@ -5930,7 +5940,7 @@ static long btrfs_fallocate(struct inode *inode, int mode, !test_bit(EXTENT_FLAG_PREALLOC, &em->flags))) { ret = prealloc_file_range(inode, cur_offset, last_byte, - alloc_hint, mode); + alloc_hint, mode, offset+len); if (ret < 0) { free_extent_map(em); break; diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c index b10a49d4bc6..5c2a9e78a94 100644 --- a/fs/btrfs/ordered-data.c +++ b/fs/btrfs/ordered-data.c @@ -626,6 +626,8 @@ int btrfs_ordered_update_i_size(struct inode *inode, u64 offset, if (ordered) offset = entry_end(ordered); + else + offset = ALIGN(offset, BTRFS_I(inode)->root->sectorsize); mutex_lock(&tree->mutex); disk_i_size = BTRFS_I(inode)->disk_i_size; diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index a9728680eca..ed3e4a2ec2c 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -3281,8 +3281,10 @@ static noinline_for_stack int relocate_block_group(struct reloc_control *rc) return -ENOMEM; path = btrfs_alloc_path(); - if (!path) + if (!path) { + kfree(cluster); return -ENOMEM; + } rc->extents_found = 0; rc->extents_skipped = 0; diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 3f9b45704fc..8a1ea6e6457 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -66,7 +66,8 @@ enum { Opt_degraded, Opt_subvol, Opt_device, Opt_nodatasum, Opt_nodatacow, Opt_max_extent, Opt_max_inline, Opt_alloc_start, Opt_nobarrier, Opt_ssd, Opt_nossd, Opt_ssd_spread, Opt_thread_pool, Opt_noacl, - Opt_compress, Opt_notreelog, Opt_ratio, Opt_flushoncommit, + Opt_compress, Opt_compress_force, Opt_notreelog, Opt_ratio, + Opt_flushoncommit, Opt_discard, Opt_err, }; @@ -82,6 +83,7 @@ static match_table_t tokens = { {Opt_alloc_start, "alloc_start=%s"}, {Opt_thread_pool, "thread_pool=%d"}, {Opt_compress, "compress"}, + {Opt_compress_force, "compress-force"}, {Opt_ssd, "ssd"}, {Opt_ssd_spread, "ssd_spread"}, {Opt_nossd, "nossd"}, @@ -173,6 +175,11 @@ int btrfs_parse_options(struct btrfs_root *root, char *options) printk(KERN_INFO "btrfs: use compression\n"); btrfs_set_opt(info->mount_opt, COMPRESS); break; + case Opt_compress_force: + printk(KERN_INFO "btrfs: forcing compression\n"); + btrfs_set_opt(info->mount_opt, FORCE_COMPRESS); + btrfs_set_opt(info->mount_opt, COMPRESS); + break; case Opt_ssd: printk(KERN_INFO "btrfs: use ssd allocation scheme\n"); btrfs_set_opt(info->mount_opt, SSD); diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 198cff28766..41ecbb2347f 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -1135,7 +1135,7 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path) root->fs_info->avail_metadata_alloc_bits; if ((all_avail & BTRFS_BLOCK_GROUP_RAID10) && - root->fs_info->fs_devices->rw_devices <= 4) { + root->fs_info->fs_devices->num_devices <= 4) { printk(KERN_ERR "btrfs: unable to go below four devices " "on raid10\n"); ret = -EINVAL; @@ -1143,7 +1143,7 @@ int btrfs_rm_device(struct btrfs_root *root, char *device_path) } if ((all_avail & BTRFS_BLOCK_GROUP_RAID1) && - root->fs_info->fs_devices->rw_devices <= 2) { + root->fs_info->fs_devices->num_devices <= 2) { printk(KERN_ERR "btrfs: unable to go below two " "devices on raid1\n"); ret = -EINVAL; @@ -1434,8 +1434,8 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path) return -EINVAL; bdev = open_bdev_exclusive(device_path, 0, root->fs_info->bdev_holder); - if (!bdev) - return -EIO; + if (IS_ERR(bdev)) + return PTR_ERR(bdev); if (root->fs_info->fs_devices->seeding) { seeding_dev = 1; @@ -2538,6 +2538,11 @@ int btrfs_chunk_readonly(struct btrfs_root *root, u64 chunk_offset) if (!em) return 1; + if (btrfs_test_opt(root, DEGRADED)) { + free_extent_map(em); + return 0; + } + map = (struct map_lookup *)em->bdev; for (i = 0; i < map->num_stripes; i++) { if (!map->stripes[i].dev->writeable) { @@ -2649,8 +2654,10 @@ again: em = lookup_extent_mapping(em_tree, logical, *length); read_unlock(&em_tree->lock); - if (!em && unplug_page) + if (!em && unplug_page) { + kfree(multi); return 0; + } if (!em) { printk(KERN_CRIT "unable to find logical %llu len %llu\n", diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c index fea9e898c4b..b44ce0a0711 100644 --- a/fs/cifs/cifs_dfs_ref.c +++ b/fs/cifs/cifs_dfs_ref.c @@ -269,7 +269,7 @@ static int add_mount_helper(struct vfsmount *newmnt, struct nameidata *nd, int err; mntget(newmnt); - err = do_add_mount(newmnt, &nd->path, nd->path.mnt->mnt_flags, mntlist); + err = do_add_mount(newmnt, &nd->path, nd->path.mnt->mnt_flags | MNT_SHRINKABLE, mntlist); switch (err) { case 0: path_put(&nd->path); @@ -371,7 +371,6 @@ cifs_dfs_follow_mountpoint(struct dentry *dentry, struct nameidata *nd) if (IS_ERR(mnt)) goto out_err; - nd->path.mnt->mnt_flags |= MNT_SHRINKABLE; rc = add_mount_helper(mnt, nd, &cifs_dfs_automount_list); out: diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c index 332dd00f089..c5c45de1a2e 100644 --- a/fs/compat_ioctl.c +++ b/fs/compat_ioctl.c @@ -1005,6 +1005,9 @@ COMPATIBLE_IOCTL(SCSI_IOCTL_SEND_COMMAND) COMPATIBLE_IOCTL(SCSI_IOCTL_PROBE_HOST) COMPATIBLE_IOCTL(SCSI_IOCTL_GET_PCI) #endif +/* Big V (don't complain on serial console) */ +IGNORE_IOCTL(VT_OPENQRY) +IGNORE_IOCTL(VT_GETMODE) /* Little p (/dev/rtc, /dev/envctrl, etc.) */ COMPATIBLE_IOCTL(RTC_AIE_ON) COMPATIBLE_IOCTL(RTC_AIE_OFF) diff --git a/fs/configfs/symlink.c b/fs/configfs/symlink.c index c8afa6b1d91..32a5f46b115 100644 --- a/fs/configfs/symlink.c +++ b/fs/configfs/symlink.c @@ -121,8 +121,10 @@ static int get_target(const char *symname, struct path *path, ret = -ENOENT; path_put(path); } - } else + } else { ret = -EPERM; + path_put(path); + } } return ret; diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index b486169f42b..274ac865bae 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -160,15 +160,8 @@ static int debugfs_create_by_name(const char *name, mode_t mode, * block. A pointer to that is in the struct vfsmount that we * have around. */ - if (!parent) { - if (debugfs_mount && debugfs_mount->mnt_sb) { - parent = debugfs_mount->mnt_sb->s_root; - } - } - if (!parent) { - pr_debug("debugfs: Ah! can not find a parent!\n"); - return -EFAULT; - } + if (!parent) + parent = debugfs_mount->mnt_sb->s_root; *dentry = NULL; mutex_lock(&parent->d_inode->i_mutex); diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c index fbb6e5eed69..7cb0a59f4b9 100644 --- a/fs/ecryptfs/crypto.c +++ b/fs/ecryptfs/crypto.c @@ -1748,7 +1748,7 @@ ecryptfs_process_key_cipher(struct crypto_blkcipher **key_tfm, char *cipher_name, size_t *key_size) { char dummy_key[ECRYPTFS_MAX_KEY_BYTES]; - char *full_alg_name; + char *full_alg_name = NULL; int rc; *key_tfm = NULL; @@ -1763,7 +1763,6 @@ ecryptfs_process_key_cipher(struct crypto_blkcipher **key_tfm, if (rc) goto out; *key_tfm = crypto_alloc_blkcipher(full_alg_name, 0, CRYPTO_ALG_ASYNC); - kfree(full_alg_name); if (IS_ERR(*key_tfm)) { rc = PTR_ERR(*key_tfm); printk(KERN_ERR "Unable to allocate crypto cipher with name " @@ -1786,6 +1785,7 @@ ecryptfs_process_key_cipher(struct crypto_blkcipher **key_tfm, goto out; } out: + kfree(full_alg_name); return rc; } diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c index 9e944057001..678172b61be 100644 --- a/fs/ecryptfs/file.c +++ b/fs/ecryptfs/file.c @@ -158,7 +158,7 @@ static int ecryptfs_open(struct inode *inode, struct file *file) struct dentry *ecryptfs_dentry = file->f_path.dentry; /* Private value of ecryptfs_dentry allocated in * ecryptfs_lookup() */ - struct dentry *lower_dentry = ecryptfs_dentry_to_lower(ecryptfs_dentry); + struct dentry *lower_dentry; struct ecryptfs_file_info *file_info; mount_crypt_stat = &ecryptfs_superblock_to_private( @@ -191,13 +191,6 @@ static int ecryptfs_open(struct inode *inode, struct file *file) | ECRYPTFS_ENCRYPTED); } mutex_unlock(&crypt_stat->cs_mutex); - if ((ecryptfs_inode_to_private(inode)->lower_file->f_flags & O_RDONLY) - && !(file->f_flags & O_RDONLY)) { - rc = -EPERM; - printk(KERN_WARNING "%s: Lower persistent file is RO; eCryptfs " - "file must hence be opened RO\n", __func__); - goto out; - } if (!ecryptfs_inode_to_private(inode)->lower_file) { rc = ecryptfs_init_persistent_file(ecryptfs_dentry); if (rc) { @@ -208,6 +201,13 @@ static int ecryptfs_open(struct inode *inode, struct file *file) goto out; } } + if ((ecryptfs_inode_to_private(inode)->lower_file->f_flags & O_RDONLY) + && !(file->f_flags & O_RDONLY)) { + rc = -EPERM; + printk(KERN_WARNING "%s: Lower persistent file is RO; eCryptfs " + "file must hence be opened RO\n", __func__); + goto out; + } ecryptfs_set_file_lower( file, ecryptfs_inode_to_private(inode)->lower_file); if (S_ISDIR(ecryptfs_dentry->d_inode->i_mode)) { @@ -299,7 +299,6 @@ static int ecryptfs_ioctl(struct inode *inode, struct file *file, const struct file_operations ecryptfs_dir_fops = { .readdir = ecryptfs_readdir, .ioctl = ecryptfs_ioctl, - .mmap = generic_file_mmap, .open = ecryptfs_open, .flush = ecryptfs_flush, .release = ecryptfs_release, diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c index 429ca0b3ba0..4a430ab4115 100644 --- a/fs/ecryptfs/inode.c +++ b/fs/ecryptfs/inode.c @@ -282,7 +282,8 @@ int ecryptfs_lookup_and_interpose_lower(struct dentry *ecryptfs_dentry, goto out; } rc = ecryptfs_interpose(lower_dentry, ecryptfs_dentry, - ecryptfs_dir_inode->i_sb, 1); + ecryptfs_dir_inode->i_sb, + ECRYPTFS_INTERPOSE_FLAG_D_ADD); if (rc) { printk(KERN_ERR "%s: Error interposing; rc = [%d]\n", __func__, rc); @@ -463,9 +464,6 @@ out_lock: unlock_dir(lower_dir_dentry); dput(lower_new_dentry); dput(lower_old_dentry); - d_drop(lower_old_dentry); - d_drop(new_dentry); - d_drop(old_dentry); return rc; } @@ -614,6 +612,7 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry, struct dentry *lower_new_dentry; struct dentry *lower_old_dir_dentry; struct dentry *lower_new_dir_dentry; + struct dentry *trap = NULL; lower_old_dentry = ecryptfs_dentry_to_lower(old_dentry); lower_new_dentry = ecryptfs_dentry_to_lower(new_dentry); @@ -621,7 +620,17 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry, dget(lower_new_dentry); lower_old_dir_dentry = dget_parent(lower_old_dentry); lower_new_dir_dentry = dget_parent(lower_new_dentry); - lock_rename(lower_old_dir_dentry, lower_new_dir_dentry); + trap = lock_rename(lower_old_dir_dentry, lower_new_dir_dentry); + /* source should not be ancestor of target */ + if (trap == lower_old_dentry) { + rc = -EINVAL; + goto out_lock; + } + /* target should not be ancestor of source */ + if (trap == lower_new_dentry) { + rc = -ENOTEMPTY; + goto out_lock; + } rc = vfs_rename(lower_old_dir_dentry->d_inode, lower_old_dentry, lower_new_dir_dentry->d_inode, lower_new_dentry); if (rc) @@ -715,31 +724,31 @@ static void *ecryptfs_follow_link(struct dentry *dentry, struct nameidata *nd) /* Released in ecryptfs_put_link(); only release here on error */ buf = kmalloc(len, GFP_KERNEL); if (!buf) { - rc = -ENOMEM; + buf = ERR_PTR(-ENOMEM); goto out; } old_fs = get_fs(); set_fs(get_ds()); rc = dentry->d_inode->i_op->readlink(dentry, (char __user *)buf, len); set_fs(old_fs); - if (rc < 0) - goto out_free; - else + if (rc < 0) { + kfree(buf); + buf = ERR_PTR(rc); + } else buf[rc] = '\0'; - rc = 0; - nd_set_link(nd, buf); - goto out; -out_free: - kfree(buf); out: - return ERR_PTR(rc); + nd_set_link(nd, buf); + return NULL; } static void ecryptfs_put_link(struct dentry *dentry, struct nameidata *nd, void *ptr) { - /* Free the char* */ - kfree(nd_get_link(nd)); + char *buf = nd_get_link(nd); + if (!IS_ERR(buf)) { + /* Free the char* */ + kfree(buf); + } } /** @@ -772,18 +781,23 @@ upper_size_to_lower_size(struct ecryptfs_crypt_stat *crypt_stat, } /** - * ecryptfs_truncate + * truncate_upper * @dentry: The ecryptfs layer dentry - * @new_length: The length to expand the file to + * @ia: Address of the ecryptfs inode's attributes + * @lower_ia: Address of the lower inode's attributes * * Function to handle truncations modifying the size of the file. Note * that the file sizes are interpolated. When expanding, we are simply - * writing strings of 0's out. When truncating, we need to modify the - * underlying file size according to the page index interpolations. + * writing strings of 0's out. When truncating, we truncate the upper + * inode and update the lower_ia according to the page index + * interpolations. If ATTR_SIZE is set in lower_ia->ia_valid upon return, + * the caller must use lower_ia in a call to notify_change() to perform + * the truncation of the lower inode. * * Returns zero on success; non-zero otherwise */ -int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) +static int truncate_upper(struct dentry *dentry, struct iattr *ia, + struct iattr *lower_ia) { int rc = 0; struct inode *inode = dentry->d_inode; @@ -794,8 +808,10 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) loff_t lower_size_before_truncate; loff_t lower_size_after_truncate; - if (unlikely((new_length == i_size))) + if (unlikely((ia->ia_size == i_size))) { + lower_ia->ia_valid &= ~ATTR_SIZE; goto out; + } crypt_stat = &ecryptfs_inode_to_private(dentry->d_inode)->crypt_stat; /* Set up a fake ecryptfs file, this is used to interface with * the file in the underlying filesystem so that the @@ -815,28 +831,30 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) &fake_ecryptfs_file, ecryptfs_inode_to_private(dentry->d_inode)->lower_file); /* Switch on growing or shrinking file */ - if (new_length > i_size) { + if (ia->ia_size > i_size) { char zero[] = { 0x00 }; + lower_ia->ia_valid &= ~ATTR_SIZE; /* Write a single 0 at the last position of the file; * this triggers code that will fill in 0's throughout * the intermediate portion of the previous end of the * file and the new and of the file */ rc = ecryptfs_write(&fake_ecryptfs_file, zero, - (new_length - 1), 1); - } else { /* new_length < i_size_read(inode) */ - /* We're chopping off all the pages down do the page - * in which new_length is located. Fill in the end of - * that page from (new_length & ~PAGE_CACHE_MASK) to + (ia->ia_size - 1), 1); + } else { /* ia->ia_size < i_size_read(inode) */ + /* We're chopping off all the pages down to the page + * in which ia->ia_size is located. Fill in the end of + * that page from (ia->ia_size & ~PAGE_CACHE_MASK) to * PAGE_CACHE_SIZE with zeros. */ size_t num_zeros = (PAGE_CACHE_SIZE - - (new_length & ~PAGE_CACHE_MASK)); + - (ia->ia_size & ~PAGE_CACHE_MASK)); if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED)) { - rc = vmtruncate(inode, new_length); + rc = vmtruncate(inode, ia->ia_size); if (rc) goto out_free; - rc = vmtruncate(lower_dentry->d_inode, new_length); + lower_ia->ia_size = ia->ia_size; + lower_ia->ia_valid |= ATTR_SIZE; goto out_free; } if (num_zeros) { @@ -848,7 +866,7 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) goto out_free; } rc = ecryptfs_write(&fake_ecryptfs_file, zeros_virt, - new_length, num_zeros); + ia->ia_size, num_zeros); kfree(zeros_virt); if (rc) { printk(KERN_ERR "Error attempting to zero out " @@ -857,7 +875,7 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) goto out_free; } } - vmtruncate(inode, new_length); + vmtruncate(inode, ia->ia_size); rc = ecryptfs_write_inode_size_to_metadata(inode); if (rc) { printk(KERN_ERR "Problem with " @@ -870,10 +888,12 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) lower_size_before_truncate = upper_size_to_lower_size(crypt_stat, i_size); lower_size_after_truncate = - upper_size_to_lower_size(crypt_stat, new_length); - if (lower_size_after_truncate < lower_size_before_truncate) - vmtruncate(lower_dentry->d_inode, - lower_size_after_truncate); + upper_size_to_lower_size(crypt_stat, ia->ia_size); + if (lower_size_after_truncate < lower_size_before_truncate) { + lower_ia->ia_size = lower_size_after_truncate; + lower_ia->ia_valid |= ATTR_SIZE; + } else + lower_ia->ia_valid &= ~ATTR_SIZE; } out_free: if (ecryptfs_file_to_private(&fake_ecryptfs_file)) @@ -883,6 +903,33 @@ out: return rc; } +/** + * ecryptfs_truncate + * @dentry: The ecryptfs layer dentry + * @new_length: The length to expand the file to + * + * Simple function that handles the truncation of an eCryptfs inode and + * its corresponding lower inode. + * + * Returns zero on success; non-zero otherwise + */ +int ecryptfs_truncate(struct dentry *dentry, loff_t new_length) +{ + struct iattr ia = { .ia_valid = ATTR_SIZE, .ia_size = new_length }; + struct iattr lower_ia = { .ia_valid = 0 }; + int rc; + + rc = truncate_upper(dentry, &ia, &lower_ia); + if (!rc && lower_ia.ia_valid & ATTR_SIZE) { + struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry); + + mutex_lock(&lower_dentry->d_inode->i_mutex); + rc = notify_change(lower_dentry, &lower_ia); + mutex_unlock(&lower_dentry->d_inode->i_mutex); + } + return rc; +} + static int ecryptfs_permission(struct inode *inode, int mask) { @@ -905,6 +952,7 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia) { int rc = 0; struct dentry *lower_dentry; + struct iattr lower_ia; struct inode *inode; struct inode *lower_inode; struct ecryptfs_crypt_stat *crypt_stat; @@ -943,15 +991,11 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia) } } mutex_unlock(&crypt_stat->cs_mutex); + memcpy(&lower_ia, ia, sizeof(lower_ia)); + if (ia->ia_valid & ATTR_FILE) + lower_ia.ia_file = ecryptfs_file_to_lower(ia->ia_file); if (ia->ia_valid & ATTR_SIZE) { - ecryptfs_printk(KERN_DEBUG, - "ia->ia_valid = [0x%x] ATTR_SIZE" " = [0x%x]\n", - ia->ia_valid, ATTR_SIZE); - rc = ecryptfs_truncate(dentry, ia->ia_size); - /* ecryptfs_truncate handles resizing of the lower file */ - ia->ia_valid &= ~ATTR_SIZE; - ecryptfs_printk(KERN_DEBUG, "ia->ia_valid = [%x]\n", - ia->ia_valid); + rc = truncate_upper(dentry, ia, &lower_ia); if (rc < 0) goto out; } @@ -960,17 +1004,32 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia) * mode change is for clearing setuid/setgid bits. Allow lower fs * to interpret this in its own way. */ - if (ia->ia_valid & (ATTR_KILL_SUID | ATTR_KILL_SGID)) - ia->ia_valid &= ~ATTR_MODE; + if (lower_ia.ia_valid & (ATTR_KILL_SUID | ATTR_KILL_SGID)) + lower_ia.ia_valid &= ~ATTR_MODE; mutex_lock(&lower_dentry->d_inode->i_mutex); - rc = notify_change(lower_dentry, ia); + rc = notify_change(lower_dentry, &lower_ia); mutex_unlock(&lower_dentry->d_inode->i_mutex); out: fsstack_copy_attr_all(inode, lower_inode); return rc; } +int ecryptfs_getattr(struct vfsmount *mnt, struct dentry *dentry, + struct kstat *stat) +{ + struct kstat lower_stat; + int rc; + + rc = vfs_getattr(ecryptfs_dentry_to_lower_mnt(dentry), + ecryptfs_dentry_to_lower(dentry), &lower_stat); + if (!rc) { + generic_fillattr(dentry->d_inode, stat); + stat->blocks = lower_stat.blocks; + } + return rc; +} + int ecryptfs_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags) @@ -1100,6 +1159,7 @@ const struct inode_operations ecryptfs_dir_iops = { const struct inode_operations ecryptfs_main_iops = { .permission = ecryptfs_permission, .setattr = ecryptfs_setattr, + .getattr = ecryptfs_getattr, .setxattr = ecryptfs_setxattr, .getxattr = ecryptfs_getxattr, .listxattr = ecryptfs_listxattr, diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c index 567bc4b9f70..ea2f92101df 100644 --- a/fs/ecryptfs/main.c +++ b/fs/ecryptfs/main.c @@ -585,8 +585,8 @@ out: * with as much information as it can before needing * the lower filesystem. * ecryptfs_read_super(): this accesses the lower filesystem and uses - * ecryptfs_interpolate to perform most of the linking - * ecryptfs_interpolate(): links the lower filesystem into ecryptfs + * ecryptfs_interpose to perform most of the linking + * ecryptfs_interpose(): links the lower filesystem into ecryptfs (inode.c) */ static int ecryptfs_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *raw_data, diff --git a/fs/eventfd.c b/fs/eventfd.c index d26402ff06e..7758cc382ef 100644 --- a/fs/eventfd.c +++ b/fs/eventfd.c @@ -135,26 +135,71 @@ static unsigned int eventfd_poll(struct file *file, poll_table *wait) return events; } -static ssize_t eventfd_read(struct file *file, char __user *buf, size_t count, - loff_t *ppos) +static void eventfd_ctx_do_read(struct eventfd_ctx *ctx, __u64 *cnt) +{ + *cnt = (ctx->flags & EFD_SEMAPHORE) ? 1 : ctx->count; + ctx->count -= *cnt; +} + +/** + * eventfd_ctx_remove_wait_queue - Read the current counter and removes wait queue. + * @ctx: [in] Pointer to eventfd context. + * @wait: [in] Wait queue to be removed. + * @cnt: [out] Pointer to the 64bit conter value. + * + * Returns zero if successful, or the following error codes: + * + * -EAGAIN : The operation would have blocked. + * + * This is used to atomically remove a wait queue entry from the eventfd wait + * queue head, and read/reset the counter value. + */ +int eventfd_ctx_remove_wait_queue(struct eventfd_ctx *ctx, wait_queue_t *wait, + __u64 *cnt) +{ + unsigned long flags; + + spin_lock_irqsave(&ctx->wqh.lock, flags); + eventfd_ctx_do_read(ctx, cnt); + __remove_wait_queue(&ctx->wqh, wait); + if (*cnt != 0 && waitqueue_active(&ctx->wqh)) + wake_up_locked_poll(&ctx->wqh, POLLOUT); + spin_unlock_irqrestore(&ctx->wqh.lock, flags); + + return *cnt != 0 ? 0 : -EAGAIN; +} +EXPORT_SYMBOL_GPL(eventfd_ctx_remove_wait_queue); + +/** + * eventfd_ctx_read - Reads the eventfd counter or wait if it is zero. + * @ctx: [in] Pointer to eventfd context. + * @no_wait: [in] Different from zero if the operation should not block. + * @cnt: [out] Pointer to the 64bit conter value. + * + * Returns zero if successful, or the following error codes: + * + * -EAGAIN : The operation would have blocked but @no_wait was nonzero. + * -ERESTARTSYS : A signal interrupted the wait operation. + * + * If @no_wait is zero, the function might sleep until the eventfd internal + * counter becomes greater than zero. + */ +ssize_t eventfd_ctx_read(struct eventfd_ctx *ctx, int no_wait, __u64 *cnt) { - struct eventfd_ctx *ctx = file->private_data; ssize_t res; - __u64 ucnt = 0; DECLARE_WAITQUEUE(wait, current); - if (count < sizeof(ucnt)) - return -EINVAL; spin_lock_irq(&ctx->wqh.lock); + *cnt = 0; res = -EAGAIN; if (ctx->count > 0) - res = sizeof(ucnt); - else if (!(file->f_flags & O_NONBLOCK)) { + res = 0; + else if (!no_wait) { __add_wait_queue(&ctx->wqh, &wait); - for (res = 0;;) { + for (;;) { set_current_state(TASK_INTERRUPTIBLE); if (ctx->count > 0) { - res = sizeof(ucnt); + res = 0; break; } if (signal_pending(current)) { @@ -168,18 +213,32 @@ static ssize_t eventfd_read(struct file *file, char __user *buf, size_t count, __remove_wait_queue(&ctx->wqh, &wait); __set_current_state(TASK_RUNNING); } - if (likely(res > 0)) { - ucnt = (ctx->flags & EFD_SEMAPHORE) ? 1 : ctx->count; - ctx->count -= ucnt; + if (likely(res == 0)) { + eventfd_ctx_do_read(ctx, cnt); if (waitqueue_active(&ctx->wqh)) wake_up_locked_poll(&ctx->wqh, POLLOUT); } spin_unlock_irq(&ctx->wqh.lock); - if (res > 0 && put_user(ucnt, (__u64 __user *) buf)) - return -EFAULT; return res; } +EXPORT_SYMBOL_GPL(eventfd_ctx_read); + +static ssize_t eventfd_read(struct file *file, char __user *buf, size_t count, + loff_t *ppos) +{ + struct eventfd_ctx *ctx = file->private_data; + ssize_t res; + __u64 cnt; + + if (count < sizeof(cnt)) + return -EINVAL; + res = eventfd_ctx_read(ctx, file->f_flags & O_NONBLOCK, &cnt); + if (res < 0) + return res; + + return put_user(cnt, (__u64 __user *) buf) ? -EFAULT : sizeof(cnt); +} static ssize_t eventfd_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) diff --git a/fs/exec.c b/fs/exec.c index 632b02e34ec..675c3f44c2e 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -941,9 +941,7 @@ void set_task_comm(struct task_struct *tsk, char *buf) int flush_old_exec(struct linux_binprm * bprm) { - char * name; - int i, ch, retval; - char tcomm[sizeof(current->comm)]; + int retval; /* * Make sure we have a private signal table and that @@ -963,6 +961,20 @@ int flush_old_exec(struct linux_binprm * bprm) goto out; bprm->mm = NULL; /* We're using it now */ + return 0; + +out: + return retval; +} +EXPORT_SYMBOL(flush_old_exec); + +void setup_new_exec(struct linux_binprm * bprm) +{ + int i, ch; + char * name; + char tcomm[sizeof(current->comm)]; + + arch_pick_mmap_layout(current->mm); /* This is the point of no return */ current->sas_ss_sp = current->sas_ss_size = 0; @@ -1019,14 +1031,8 @@ int flush_old_exec(struct linux_binprm * bprm) flush_signal_handlers(current, 0); flush_old_files(current->files); - - return 0; - -out: - return retval; } - -EXPORT_SYMBOL(flush_old_exec); +EXPORT_SYMBOL(setup_new_exec); /* * Prepare credentials and lock ->cred_guard_mutex. diff --git a/fs/exofs/inode.c b/fs/exofs/inode.c index 698a8636d39..2afbcebeda7 100644 --- a/fs/exofs/inode.c +++ b/fs/exofs/inode.c @@ -738,13 +738,28 @@ static int exofs_write_begin_export(struct file *file, fsdata); } +static int exofs_write_end(struct file *file, struct address_space *mapping, + loff_t pos, unsigned len, unsigned copied, + struct page *page, void *fsdata) +{ + struct inode *inode = mapping->host; + /* According to comment in simple_write_end i_mutex is held */ + loff_t i_size = inode->i_size; + int ret; + + ret = simple_write_end(file, mapping,pos, len, copied, page, fsdata); + if (i_size != inode->i_size) + mark_inode_dirty(inode); + return ret; +} + const struct address_space_operations exofs_aops = { .readpage = exofs_readpage, .readpages = exofs_readpages, .writepage = exofs_writepage, .writepages = exofs_writepages, .write_begin = exofs_write_begin_export, - .write_end = simple_write_end, + .write_end = exofs_write_end, }; /****************************************************************************** diff --git a/fs/exofs/pnfs.h b/fs/exofs/pnfs.h index 423033addd1..c52e9888b8a 100644 --- a/fs/exofs/pnfs.h +++ b/fs/exofs/pnfs.h @@ -15,13 +15,7 @@ #ifndef __EXOFS_PNFS_H__ #define __EXOFS_PNFS_H__ -#if defined(CONFIG_PNFS) - - -/* FIXME: move this file to: linux/exportfs/pnfs_osd_xdr.h */ -#include "../nfs/objlayout/pnfs_osd_xdr.h" - -#else /* defined(CONFIG_PNFS) */ +#if ! defined(__PNFS_OSD_XDR_H__) enum pnfs_iomode { IOMODE_READ = 1, @@ -46,6 +40,6 @@ struct pnfs_osd_data_map { u32 odm_raid_algorithm; }; -#endif /* else defined(CONFIG_PNFS) */ +#endif /* ! defined(__PNFS_OSD_XDR_H__) */ #endif /* __EXOFS_PNFS_H__ */ diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index af7b62699ea..874d169a193 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -361,14 +361,11 @@ struct ext4_new_group_data { so set the magic i_delalloc_reserve_flag after taking the inode allocation semaphore for */ #define EXT4_GET_BLOCKS_DELALLOC_RESERVE 0x0004 - /* Call ext4_da_update_reserve_space() after successfully - allocating the blocks */ -#define EXT4_GET_BLOCKS_UPDATE_RESERVE_SPACE 0x0008 /* caller is from the direct IO path, request to creation of an unitialized extents if not allocated, split the uninitialized extent if blocks has been preallocated already*/ -#define EXT4_GET_BLOCKS_DIO 0x0010 -#define EXT4_GET_BLOCKS_CONVERT 0x0020 +#define EXT4_GET_BLOCKS_DIO 0x0008 +#define EXT4_GET_BLOCKS_CONVERT 0x0010 #define EXT4_GET_BLOCKS_DIO_CREATE_EXT (EXT4_GET_BLOCKS_DIO|\ EXT4_GET_BLOCKS_CREATE_UNINIT_EXT) /* Convert extent to initialized after direct IO complete */ @@ -1443,6 +1440,8 @@ extern int ext4_block_truncate_page(handle_t *handle, extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf); extern qsize_t *ext4_get_reserved_space(struct inode *inode); extern int flush_aio_dio_completed_IO(struct inode *inode); +extern void ext4_da_update_reserve_space(struct inode *inode, + int used, int quota_claim); /* ioctl.c */ extern long ext4_ioctl(struct file *, unsigned int, unsigned long); extern long ext4_compat_ioctl(struct file *, unsigned int, unsigned long); diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c index 7d7b74e9468..765a4826b11 100644 --- a/fs/ext4/extents.c +++ b/fs/ext4/extents.c @@ -3132,7 +3132,19 @@ out: unmap_underlying_metadata_blocks(inode->i_sb->s_bdev, newblock + max_blocks, allocated - max_blocks); + allocated = max_blocks; } + + /* + * If we have done fallocate with the offset that is already + * delayed allocated, we would have block reservation + * and quota reservation done in the delayed write path. + * But fallocate would have already updated quota and block + * count for this offset. So cancel these reservation + */ + if (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE) + ext4_da_update_reserve_space(inode, allocated, 0); + map_out: set_buffer_mapped(bh_result); out1: @@ -3368,9 +3380,18 @@ int ext4_ext_get_blocks(handle_t *handle, struct inode *inode, /* previous routine could use block we allocated */ newblock = ext_pblock(&newex); allocated = ext4_ext_get_actual_len(&newex); + if (allocated > max_blocks) + allocated = max_blocks; set_buffer_new(bh_result); /* + * Update reserved blocks/metadata blocks after successful + * block allocation which had been deferred till now. + */ + if (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE) + ext4_da_update_reserve_space(inode, allocated, 1); + + /* * Cache the extent and update transaction to commit on fdatasync only * when it is _not_ an uninitialized extent. */ diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index c818972c830..e11952404e0 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -1053,11 +1053,12 @@ static int ext4_calc_metadata_amount(struct inode *inode, sector_t lblock) * Called with i_data_sem down, which is important since we can call * ext4_discard_preallocations() from here. */ -static void ext4_da_update_reserve_space(struct inode *inode, int used) +void ext4_da_update_reserve_space(struct inode *inode, + int used, int quota_claim) { struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); struct ext4_inode_info *ei = EXT4_I(inode); - int mdb_free = 0; + int mdb_free = 0, allocated_meta_blocks = 0; spin_lock(&ei->i_block_reservation_lock); if (unlikely(used > ei->i_reserved_data_blocks)) { @@ -1073,6 +1074,7 @@ static void ext4_da_update_reserve_space(struct inode *inode, int used) ei->i_reserved_data_blocks -= used; used += ei->i_allocated_meta_blocks; ei->i_reserved_meta_blocks -= ei->i_allocated_meta_blocks; + allocated_meta_blocks = ei->i_allocated_meta_blocks; ei->i_allocated_meta_blocks = 0; percpu_counter_sub(&sbi->s_dirtyblocks_counter, used); @@ -1090,9 +1092,23 @@ static void ext4_da_update_reserve_space(struct inode *inode, int used) spin_unlock(&EXT4_I(inode)->i_block_reservation_lock); /* Update quota subsystem */ - vfs_dq_claim_block(inode, used); - if (mdb_free) - vfs_dq_release_reservation_block(inode, mdb_free); + if (quota_claim) { + vfs_dq_claim_block(inode, used); + if (mdb_free) + vfs_dq_release_reservation_block(inode, mdb_free); + } else { + /* + * We did fallocate with an offset that is already delayed + * allocated. So on delayed allocated writeback we should + * not update the quota for allocated blocks. But then + * converting an fallocate region to initialized region would + * have caused a metadata allocation. So claim quota for + * that + */ + if (allocated_meta_blocks) + vfs_dq_claim_block(inode, allocated_meta_blocks); + vfs_dq_release_reservation_block(inode, mdb_free + used); + } /* * If we have done all the pending block allocations and if @@ -1292,18 +1308,20 @@ int ext4_get_blocks(handle_t *handle, struct inode *inode, sector_t block, */ EXT4_I(inode)->i_state &= ~EXT4_STATE_EXT_MIGRATE; } - } + /* + * Update reserved blocks/metadata blocks after successful + * block allocation which had been deferred till now. We don't + * support fallocate for non extent files. So we can update + * reserve space here. + */ + if ((retval > 0) && + (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE)) + ext4_da_update_reserve_space(inode, retval, 1); + } if (flags & EXT4_GET_BLOCKS_DELALLOC_RESERVE) EXT4_I(inode)->i_delalloc_reserved_flag = 0; - /* - * Update reserved blocks/metadata blocks after successful - * block allocation which had been deferred till now. - */ - if ((retval > 0) && (flags & EXT4_GET_BLOCKS_UPDATE_RESERVE_SPACE)) - ext4_da_update_reserve_space(inode, retval); - up_write((&EXT4_I(inode)->i_data_sem)); if (retval > 0 && buffer_mapped(bh)) { int ret = check_block_validity(inode, "file system " @@ -1835,24 +1853,12 @@ repeat: * later. Real quota accounting is done at pages writeout * time. */ - if (vfs_dq_reserve_block(inode, md_needed + 1)) { - /* - * We tend to badly over-estimate the amount of - * metadata blocks which are needed, so if we have - * reserved any metadata blocks, try to force out the - * inode and see if we have any better luck. - */ - if (md_reserved && retries++ <= 3) - goto retry; + if (vfs_dq_reserve_block(inode, md_needed + 1)) return -EDQUOT; - } if (ext4_claim_free_blocks(sbi, md_needed + 1)) { vfs_dq_release_reservation_block(inode, md_needed + 1); if (ext4_should_retry_alloc(inode->i_sb, &retries)) { - retry: - if (md_reserved) - write_inode_now(inode, (retries == 3)); yield(); goto repeat; } @@ -2213,10 +2219,10 @@ static int mpage_da_map_blocks(struct mpage_da_data *mpd) * variables are updated after the blocks have been allocated. */ new.b_state = 0; - get_blocks_flags = (EXT4_GET_BLOCKS_CREATE | - EXT4_GET_BLOCKS_DELALLOC_RESERVE); + get_blocks_flags = EXT4_GET_BLOCKS_CREATE; if (mpd->b_state & (1 << BH_Delay)) - get_blocks_flags |= EXT4_GET_BLOCKS_UPDATE_RESERVE_SPACE; + get_blocks_flags |= EXT4_GET_BLOCKS_DELALLOC_RESERVE; + blks = ext4_get_blocks(handle, mpd->inode, next, max_blocks, &new, get_blocks_flags); if (blks < 0) { @@ -3032,7 +3038,7 @@ static int ext4_da_write_begin(struct file *file, struct address_space *mapping, loff_t pos, unsigned len, unsigned flags, struct page **pagep, void **fsdata) { - int ret, retries = 0; + int ret, retries = 0, quota_retries = 0; struct page *page; pgoff_t index; unsigned from, to; @@ -3091,6 +3097,22 @@ retry: if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries)) goto retry; + + if ((ret == -EDQUOT) && + EXT4_I(inode)->i_reserved_meta_blocks && + (quota_retries++ < 3)) { + /* + * Since we often over-estimate the number of meta + * data blocks required, we may sometimes get a + * spurios out of quota error even though there would + * be enough space once we write the data blocks and + * find out how many meta data blocks were _really_ + * required. So try forcing the inode write to see if + * that helps. + */ + write_inode_now(inode, (quota_retries == 3)); + goto retry; + } out: return ret; } diff --git a/fs/fcntl.c b/fs/fcntl.c index 2cf93ec40a6..5ef953e6f90 100644 --- a/fs/fcntl.c +++ b/fs/fcntl.c @@ -199,7 +199,9 @@ static int setfl(int fd, struct file * filp, unsigned long arg) static void f_modown(struct file *filp, struct pid *pid, enum pid_type type, int force) { - write_lock_irq(&filp->f_owner.lock); + unsigned long flags; + + write_lock_irqsave(&filp->f_owner.lock, flags); if (force || !filp->f_owner.pid) { put_pid(filp->f_owner.pid); filp->f_owner.pid = get_pid(pid); @@ -211,7 +213,7 @@ static void f_modown(struct file *filp, struct pid *pid, enum pid_type type, filp->f_owner.euid = cred->euid; } } - write_unlock_irq(&filp->f_owner.lock); + write_unlock_irqrestore(&filp->f_owner.lock, flags); } int __f_setown(struct file *filp, struct pid *pid, enum pid_type type, @@ -618,60 +620,90 @@ static DEFINE_RWLOCK(fasync_lock); static struct kmem_cache *fasync_cache __read_mostly; /* - * fasync_helper() is used by almost all character device drivers - * to set up the fasync queue. It returns negative on error, 0 if it did - * no changes and positive if it added/deleted the entry. + * Remove a fasync entry. If successfully removed, return + * positive and clear the FASYNC flag. If no entry exists, + * do nothing and return 0. + * + * NOTE! It is very important that the FASYNC flag always + * match the state "is the filp on a fasync list". + * + * We always take the 'filp->f_lock', in since fasync_lock + * needs to be irq-safe. */ -int fasync_helper(int fd, struct file * filp, int on, struct fasync_struct **fapp) +static int fasync_remove_entry(struct file *filp, struct fasync_struct **fapp) { struct fasync_struct *fa, **fp; - struct fasync_struct *new = NULL; int result = 0; - if (on) { - new = kmem_cache_alloc(fasync_cache, GFP_KERNEL); - if (!new) - return -ENOMEM; + spin_lock(&filp->f_lock); + write_lock_irq(&fasync_lock); + for (fp = fapp; (fa = *fp) != NULL; fp = &fa->fa_next) { + if (fa->fa_file != filp) + continue; + *fp = fa->fa_next; + kmem_cache_free(fasync_cache, fa); + filp->f_flags &= ~FASYNC; + result = 1; + break; } + write_unlock_irq(&fasync_lock); + spin_unlock(&filp->f_lock); + return result; +} + +/* + * Add a fasync entry. Return negative on error, positive if + * added, and zero if did nothing but change an existing one. + * + * NOTE! It is very important that the FASYNC flag always + * match the state "is the filp on a fasync list". + */ +static int fasync_add_entry(int fd, struct file *filp, struct fasync_struct **fapp) +{ + struct fasync_struct *new, *fa, **fp; + int result = 0; + + new = kmem_cache_alloc(fasync_cache, GFP_KERNEL); + if (!new) + return -ENOMEM; - /* - * We need to take f_lock first since it's not an IRQ-safe - * lock. - */ spin_lock(&filp->f_lock); write_lock_irq(&fasync_lock); for (fp = fapp; (fa = *fp) != NULL; fp = &fa->fa_next) { - if (fa->fa_file == filp) { - if(on) { - fa->fa_fd = fd; - kmem_cache_free(fasync_cache, new); - } else { - *fp = fa->fa_next; - kmem_cache_free(fasync_cache, fa); - result = 1; - } - goto out; - } + if (fa->fa_file != filp) + continue; + fa->fa_fd = fd; + kmem_cache_free(fasync_cache, new); + goto out; } - if (on) { - new->magic = FASYNC_MAGIC; - new->fa_file = filp; - new->fa_fd = fd; - new->fa_next = *fapp; - *fapp = new; - result = 1; - } + new->magic = FASYNC_MAGIC; + new->fa_file = filp; + new->fa_fd = fd; + new->fa_next = *fapp; + *fapp = new; + result = 1; + filp->f_flags |= FASYNC; + out: - if (on) - filp->f_flags |= FASYNC; - else - filp->f_flags &= ~FASYNC; write_unlock_irq(&fasync_lock); spin_unlock(&filp->f_lock); return result; } +/* + * fasync_helper() is used by almost all character device drivers + * to set up the fasync queue, and for regular files by the file + * lease code. It returns negative on error, 0 if it did no changes + * and positive if it added/deleted the entry. + */ +int fasync_helper(int fd, struct file * filp, int on, struct fasync_struct **fapp) +{ + if (!on) + return fasync_remove_entry(filp, fapp); + return fasync_add_entry(fd, filp, fapp); +} + EXPORT_SYMBOL(fasync_helper); void __kill_fasync(struct fasync_struct *fa, int sig, int band) diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index 4eb308aa323..a6abbae8a27 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -569,6 +569,40 @@ static int gfs2_fsync(struct file *file, struct dentry *dentry, int datasync) return ret; } +/** + * gfs2_file_aio_write - Perform a write to a file + * @iocb: The io context + * @iov: The data to write + * @nr_segs: Number of @iov segments + * @pos: The file position + * + * We have to do a lock/unlock here to refresh the inode size for + * O_APPEND writes, otherwise we can land up writing at the wrong + * offset. There is still a race, but provided the app is using its + * own file locking, this will make O_APPEND work as expected. + * + */ + +static ssize_t gfs2_file_aio_write(struct kiocb *iocb, const struct iovec *iov, + unsigned long nr_segs, loff_t pos) +{ + struct file *file = iocb->ki_filp; + + if (file->f_flags & O_APPEND) { + struct dentry *dentry = file->f_dentry; + struct gfs2_inode *ip = GFS2_I(dentry->d_inode); + struct gfs2_holder gh; + int ret; + + ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &gh); + if (ret) + return ret; + gfs2_glock_dq_uninit(&gh); + } + + return generic_file_aio_write(iocb, iov, nr_segs, pos); +} + #ifdef CONFIG_GFS2_FS_LOCKING_DLM /** @@ -711,7 +745,7 @@ const struct file_operations gfs2_file_fops = { .read = do_sync_read, .aio_read = generic_file_aio_read, .write = do_sync_write, - .aio_write = generic_file_aio_write, + .aio_write = gfs2_file_aio_write, .unlocked_ioctl = gfs2_ioctl, .mmap = gfs2_mmap, .open = gfs2_open, @@ -741,7 +775,7 @@ const struct file_operations gfs2_file_fops_nolock = { .read = do_sync_read, .aio_read = generic_file_aio_read, .write = do_sync_write, - .aio_write = generic_file_aio_write, + .aio_write = gfs2_file_aio_write, .unlocked_ioctl = gfs2_ioctl, .mmap = gfs2_mmap, .open = gfs2_open, diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c index cb8d7a93d5e..6f68a5f18eb 100644 --- a/fs/gfs2/meta_io.c +++ b/fs/gfs2/meta_io.c @@ -121,7 +121,7 @@ struct inode *gfs2_aspace_get(struct gfs2_sbd *sdp) if (aspace) { mapping_set_gfp_mask(aspace->i_mapping, GFP_NOFS); aspace->i_mapping->a_ops = &aspace_aops; - aspace->i_size = ~0ULL; + aspace->i_size = MAX_LFS_FILESIZE; ip = GFS2_I(aspace); clear_bit(GIF_USER, &ip->i_flags); insert_inode_hash(aspace); diff --git a/fs/gfs2/ops_inode.c b/fs/gfs2/ops_inode.c index 247436c10de..78f73ca1ef3 100644 --- a/fs/gfs2/ops_inode.c +++ b/fs/gfs2/ops_inode.c @@ -748,7 +748,7 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, struct gfs2_rgrpd *nrgd; unsigned int num_gh; int dir_rename = 0; - int alloc_required; + int alloc_required = 0; unsigned int x; int error; @@ -867,7 +867,9 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry, goto out_gunlock; } - alloc_required = error = gfs2_diradd_alloc_required(ndir, &ndentry->d_name); + if (nip == NULL) + alloc_required = gfs2_diradd_alloc_required(ndir, &ndentry->d_name); + error = alloc_required; if (error < 0) goto out_gunlock; error = 0; diff --git a/fs/gfs2/xattr.c b/fs/gfs2/xattr.c index 8a04108e0c2..c2ebdf2c01d 100644 --- a/fs/gfs2/xattr.c +++ b/fs/gfs2/xattr.c @@ -1296,6 +1296,7 @@ fail: int gfs2_xattr_acl_chmod(struct gfs2_inode *ip, struct iattr *attr, char *data) { + struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode); struct gfs2_ea_location el; struct buffer_head *dibh; int error; @@ -1305,16 +1306,17 @@ int gfs2_xattr_acl_chmod(struct gfs2_inode *ip, struct iattr *attr, char *data) return error; if (GFS2_EA_IS_STUFFED(el.el_ea)) { - error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE + RES_EATTR, 0); - if (error) - return error; - - gfs2_trans_add_bh(ip->i_gl, el.el_bh, 1); - memcpy(GFS2_EA2DATA(el.el_ea), data, - GFS2_EA_DATA_LEN(el.el_ea)); - } else + error = gfs2_trans_begin(sdp, RES_DINODE + RES_EATTR, 0); + if (error == 0) { + gfs2_trans_add_bh(ip->i_gl, el.el_bh, 1); + memcpy(GFS2_EA2DATA(el.el_ea), data, + GFS2_EA_DATA_LEN(el.el_ea)); + } + } else { error = ea_acl_chmod_unstuffed(ip, el.el_ea, data); + } + brelse(el.el_bh); if (error) return error; @@ -1327,8 +1329,7 @@ int gfs2_xattr_acl_chmod(struct gfs2_inode *ip, struct iattr *attr, char *data) brelse(dibh); } - gfs2_trans_end(GFS2_SB(&ip->i_inode)); - + gfs2_trans_end(sdp); return error; } diff --git a/fs/hppfs/hppfs.c b/fs/hppfs/hppfs.c index a5089a6dd67..7239efc690d 100644 --- a/fs/hppfs/hppfs.c +++ b/fs/hppfs/hppfs.c @@ -646,22 +646,27 @@ static const struct super_operations hppfs_sbops = { static int hppfs_readlink(struct dentry *dentry, char __user *buffer, int buflen) { - struct dentry *proc_dentry; - - proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry; + struct dentry *proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry; return proc_dentry->d_inode->i_op->readlink(proc_dentry, buffer, buflen); } static void *hppfs_follow_link(struct dentry *dentry, struct nameidata *nd) { - struct dentry *proc_dentry; - - proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry; + struct dentry *proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry; return proc_dentry->d_inode->i_op->follow_link(proc_dentry, nd); } +static void hppfs_put_link(struct dentry *dentry, struct nameidata *nd, + void *cookie) +{ + struct dentry *proc_dentry = HPPFS_I(dentry->d_inode)->proc_dentry; + + if (proc_dentry->d_inode->i_op->put_link) + proc_dentry->d_inode->i_op->put_link(proc_dentry, nd, cookie); +} + static const struct inode_operations hppfs_dir_iops = { .lookup = hppfs_lookup, }; @@ -669,6 +674,7 @@ static const struct inode_operations hppfs_dir_iops = { static const struct inode_operations hppfs_link_iops = { .readlink = hppfs_readlink, .follow_link = hppfs_follow_link, + .put_link = hppfs_put_link, }; static struct inode *get_inode(struct super_block *sb, struct dentry *dentry) diff --git a/fs/namei.c b/fs/namei.c index b55440baf7a..94a5e60779f 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -561,6 +561,7 @@ static __always_inline int __do_follow_link(struct path *path, struct nameidata dget(dentry); } mntget(path->mnt); + nd->last_type = LAST_BIND; cookie = dentry->d_inode->i_op->follow_link(dentry, nd); error = PTR_ERR(cookie); if (!IS_ERR(cookie)) { @@ -1603,11 +1604,12 @@ struct file *do_filp_open(int dfd, const char *pathname, struct file *filp; struct nameidata nd; int error; - struct path path, save; + struct path path; struct dentry *dir; int count = 0; int will_truncate; int flag = open_to_namei_flags(open_flag); + int force_reval = 0; /* * O_SYNC is implemented as __O_SYNC|O_DSYNC. As many places only @@ -1619,7 +1621,7 @@ struct file *do_filp_open(int dfd, const char *pathname, open_flag |= O_DSYNC; if (!acc_mode) - acc_mode = MAY_OPEN | ACC_MODE(flag); + acc_mode = MAY_OPEN | ACC_MODE(open_flag); /* O_TRUNC implies we need access checks for write permissions */ if (flag & O_TRUNC) @@ -1659,9 +1661,12 @@ struct file *do_filp_open(int dfd, const char *pathname, /* * Create - we need to know the parent. */ +reval: error = path_init(dfd, pathname, LOOKUP_PARENT, &nd); if (error) return ERR_PTR(error); + if (force_reval) + nd.flags |= LOOKUP_REVAL; error = path_walk(pathname, &nd); if (error) { if (nd.root.mnt) @@ -1853,17 +1858,7 @@ do_link: error = security_inode_follow_link(path.dentry, &nd); if (error) goto exit_dput; - save = nd.path; - path_get(&save); error = __do_follow_link(&path, &nd); - if (error == -ESTALE) { - /* nd.path had been dropped */ - nd.path = save; - path_get(&nd.path); - nd.flags |= LOOKUP_REVAL; - error = __do_follow_link(&path, &nd); - } - path_put(&save); path_put(&path); if (error) { /* Does someone understand code flow here? Or it is only @@ -1873,6 +1868,10 @@ do_link: release_open_intent(&nd); if (nd.root.mnt) path_put(&nd.root); + if (error == -ESTALE && !force_reval) { + force_reval = 1; + goto reval; + } return ERR_PTR(error); } nd.flags &= ~LOOKUP_PARENT; diff --git a/fs/namespace.c b/fs/namespace.c index 7d70d63ceb2..c768f733c8d 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -965,10 +965,12 @@ EXPORT_SYMBOL(may_umount_tree); int may_umount(struct vfsmount *mnt) { int ret = 1; + down_read(&namespace_sem); spin_lock(&vfsmount_lock); if (propagate_mount_busy(mnt, 2)) ret = 0; spin_unlock(&vfsmount_lock); + up_read(&namespace_sem); return ret; } @@ -1352,12 +1354,12 @@ static int attach_recursive_mnt(struct vfsmount *source_mnt, if (err) goto out_cleanup_ids; + spin_lock(&vfsmount_lock); + if (IS_MNT_SHARED(dest_mnt)) { for (p = source_mnt; p; p = next_mnt(p, source_mnt)) set_mnt_shared(p); } - - spin_lock(&vfsmount_lock); if (parent_path) { detach_mnt(source_mnt, parent_path); attach_mnt(source_mnt, path); @@ -1534,8 +1536,12 @@ static int do_remount(struct path *path, int flags, int mnt_flags, err = change_mount_flags(path->mnt, flags); else err = do_remount_sb(sb, flags, data, 0); - if (!err) + if (!err) { + spin_lock(&vfsmount_lock); + mnt_flags |= path->mnt->mnt_flags & MNT_PNODE_MASK; path->mnt->mnt_flags = mnt_flags; + spin_unlock(&vfsmount_lock); + } up_write(&sb->s_umount); if (!err) { security_sb_post_remount(path->mnt, flags, data); @@ -1665,6 +1671,8 @@ int do_add_mount(struct vfsmount *newmnt, struct path *path, { int err; + mnt_flags &= ~(MNT_SHARED | MNT_WRITE_HOLD); + down_write(&namespace_sem); /* Something was mounted here while we slept */ while (d_mountpoint(path->dentry) && diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c index 2c5ace4f00a..3c7f03b669f 100644 --- a/fs/nfs/dir.c +++ b/fs/nfs/dir.c @@ -1615,6 +1615,7 @@ static int nfs_rename(struct inode *old_dir, struct dentry *old_dentry, goto out; new_dentry = dentry; + rehash = NULL; new_inode = NULL; } } diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c index 7c2e337d05a..c194793b642 100644 --- a/fs/nfsd/vfs.c +++ b/fs/nfsd/vfs.c @@ -780,12 +780,9 @@ static inline int nfsd_dosync(struct file *filp, struct dentry *dp, int (*fsync) (struct file *, struct dentry *, int); int err; - err = filemap_fdatawrite(inode->i_mapping); + err = filemap_write_and_wait(inode->i_mapping); if (err == 0 && fop && (fsync = fop->fsync)) err = fsync(filp, dp, 0); - if (err == 0) - err = filemap_fdatawait(inode->i_mapping); - return err; } diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c index c9ee67b442e..1afb0a10229 100644 --- a/fs/notify/inotify/inotify_fsnotify.c +++ b/fs/notify/inotify/inotify_fsnotify.c @@ -121,7 +121,7 @@ static int idr_callback(int id, void *p, void *data) if (warned) return 0; - warned = false; + warned = true; entry = p; ientry = container_of(entry, struct inotify_inode_mark_entry, fsn_entry); diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c index 8271cf05c95..a94e8bd8eb1 100644 --- a/fs/notify/inotify/inotify_user.c +++ b/fs/notify/inotify/inotify_user.c @@ -552,7 +552,7 @@ retry: spin_lock(&group->inotify_data.idr_lock); ret = idr_get_new_above(&group->inotify_data.idr, &tmp_ientry->fsn_entry, - group->inotify_data.last_wd, + group->inotify_data.last_wd+1, &tmp_ientry->wd); spin_unlock(&group->inotify_data.idr_lock); if (ret) { @@ -632,7 +632,7 @@ static struct fsnotify_group *inotify_new_group(struct user_struct *user, unsign spin_lock_init(&group->inotify_data.idr_lock); idr_init(&group->inotify_data.idr); - group->inotify_data.last_wd = 1; + group->inotify_data.last_wd = 0; group->inotify_data.user = user; group->inotify_data.fa = NULL; diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 3d30a1c974a..06ccf6a86d3 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1772,7 +1772,8 @@ static int ocfs2_prepare_inode_for_write(struct dentry *dentry, loff_t *ppos, size_t count, int appending, - int *direct_io) + int *direct_io, + int *has_refcount) { int ret = 0, meta_level = 0; struct inode *inode = dentry->d_inode; @@ -1833,6 +1834,8 @@ static int ocfs2_prepare_inode_for_write(struct dentry *dentry, saved_pos, count, &meta_level); + if (has_refcount) + *has_refcount = 1; } if (ret < 0) { @@ -1856,6 +1859,10 @@ static int ocfs2_prepare_inode_for_write(struct dentry *dentry, break; } + if (has_refcount && *has_refcount == 1) { + *direct_io = 0; + break; + } /* * Allowing concurrent direct writes means * i_size changes wouldn't be synchronized, so @@ -1899,7 +1906,7 @@ static ssize_t ocfs2_file_aio_write(struct kiocb *iocb, loff_t pos) { int ret, direct_io, appending, rw_level, have_alloc_sem = 0; - int can_do_direct; + int can_do_direct, has_refcount = 0; ssize_t written = 0; size_t ocount; /* original count */ size_t count; /* after file limit checks */ @@ -1942,7 +1949,7 @@ relock: can_do_direct = direct_io; ret = ocfs2_prepare_inode_for_write(file->f_path.dentry, ppos, iocb->ki_left, appending, - &can_do_direct); + &can_do_direct, &has_refcount); if (ret < 0) { mlog_errno(ret); goto out; @@ -2006,14 +2013,16 @@ out_dio: /* buffered aio wouldn't have proper lock coverage today */ BUG_ON(ret == -EIOCBQUEUED && !(file->f_flags & O_DIRECT)); - if ((file->f_flags & O_DSYNC && !direct_io) || IS_SYNC(inode)) { + if ((file->f_flags & O_DSYNC && !direct_io) || IS_SYNC(inode) || + (file->f_flags & O_DIRECT && has_refcount)) { ret = filemap_fdatawrite_range(file->f_mapping, pos, pos + count - 1); if (ret < 0) written = ret; if (!ret && (old_size != i_size_read(inode) || - old_clusters != OCFS2_I(inode)->ip_clusters)) { + old_clusters != OCFS2_I(inode)->ip_clusters || + has_refcount)) { ret = jbd2_journal_force_commit(osb->journal->j_journal); if (ret < 0) written = ret; @@ -2062,7 +2071,7 @@ static int ocfs2_splice_to_file(struct pipe_inode_info *pipe, int ret; ret = ocfs2_prepare_inode_for_write(out->f_path.dentry, &sd->pos, - sd->total_len, 0, NULL); + sd->total_len, 0, NULL, NULL); if (ret < 0) { mlog_errno(ret); return ret; diff --git a/fs/proc/array.c b/fs/proc/array.c index f560325c444..13b5d070817 100644 --- a/fs/proc/array.c +++ b/fs/proc/array.c @@ -327,94 +327,6 @@ static inline void task_context_switch_counts(struct seq_file *m, p->nivcsw); } -#ifdef CONFIG_MMU - -struct stack_stats { - struct vm_area_struct *vma; - unsigned long startpage; - unsigned long usage; -}; - -static int stack_usage_pte_range(pmd_t *pmd, unsigned long addr, - unsigned long end, struct mm_walk *walk) -{ - struct stack_stats *ss = walk->private; - struct vm_area_struct *vma = ss->vma; - pte_t *pte, ptent; - spinlock_t *ptl; - int ret = 0; - - pte = pte_offset_map_lock(vma->vm_mm, pmd, addr, &ptl); - for (; addr != end; pte++, addr += PAGE_SIZE) { - ptent = *pte; - -#ifdef CONFIG_STACK_GROWSUP - if (pte_present(ptent) || is_swap_pte(ptent)) - ss->usage = addr - ss->startpage + PAGE_SIZE; -#else - if (pte_present(ptent) || is_swap_pte(ptent)) { - ss->usage = ss->startpage - addr + PAGE_SIZE; - pte++; - ret = 1; - break; - } -#endif - } - pte_unmap_unlock(pte - 1, ptl); - cond_resched(); - return ret; -} - -static inline unsigned long get_stack_usage_in_bytes(struct vm_area_struct *vma, - struct task_struct *task) -{ - struct stack_stats ss; - struct mm_walk stack_walk = { - .pmd_entry = stack_usage_pte_range, - .mm = vma->vm_mm, - .private = &ss, - }; - - if (!vma->vm_mm || is_vm_hugetlb_page(vma)) - return 0; - - ss.vma = vma; - ss.startpage = task->stack_start & PAGE_MASK; - ss.usage = 0; - -#ifdef CONFIG_STACK_GROWSUP - walk_page_range(KSTK_ESP(task) & PAGE_MASK, vma->vm_end, - &stack_walk); -#else - walk_page_range(vma->vm_start, (KSTK_ESP(task) & PAGE_MASK) + PAGE_SIZE, - &stack_walk); -#endif - return ss.usage; -} - -static inline void task_show_stack_usage(struct seq_file *m, - struct task_struct *task) -{ - struct vm_area_struct *vma; - struct mm_struct *mm = get_task_mm(task); - - if (mm) { - down_read(&mm->mmap_sem); - vma = find_vma(mm, task->stack_start); - if (vma) - seq_printf(m, "Stack usage:\t%lu kB\n", - get_stack_usage_in_bytes(vma, task) >> 10); - - up_read(&mm->mmap_sem); - mmput(mm); - } -} -#else -static void task_show_stack_usage(struct seq_file *m, struct task_struct *task) -{ -} -#endif /* CONFIG_MMU */ - static void task_cpus_allowed(struct seq_file *m, struct task_struct *task) { seq_printf(m, "Cpus_allowed:\t"); @@ -445,7 +357,6 @@ int proc_pid_status(struct seq_file *m, struct pid_namespace *ns, task_show_regs(m, task); #endif task_context_switch_counts(m, task); - task_show_stack_usage(m, task); return 0; } diff --git a/fs/proc/base.c b/fs/proc/base.c index 18d5cc62d8e..e42bbd843ed 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -1419,7 +1419,6 @@ static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd) goto out; error = PROC_I(inode)->op.proc_get_link(inode, &nd->path); - nd->last_type = LAST_BIND; out: return ERR_PTR(error); } diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 47c03f4336b..f277c4a111c 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -361,12 +361,11 @@ static int smaps_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end, if (!pte_present(ptent)) continue; - mss->resident += PAGE_SIZE; - page = vm_normal_page(vma, addr, ptent); if (!page) continue; + mss->resident += PAGE_SIZE; /* Accumulate the size in pages that have been accessed. */ if (pte_young(ptent) || PageReferenced(page)) mss->referenced += PAGE_SIZE; diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c index dea86abdf2e..3fc62b097be 100644 --- a/fs/quota/dquot.c +++ b/fs/quota/dquot.c @@ -1377,6 +1377,9 @@ static void inode_sub_rsv_space(struct inode *inode, qsize_t number) static qsize_t inode_get_rsv_space(struct inode *inode) { qsize_t ret; + + if (!inode->i_sb->dq_op->get_reserved_space) + return 0; spin_lock(&inode->i_lock); ret = *inode_reserved_space(inode); spin_unlock(&inode->i_lock); diff --git a/fs/ramfs/file-nommu.c b/fs/ramfs/file-nommu.c index 2efc57173fd..1739a4aba25 100644 --- a/fs/ramfs/file-nommu.c +++ b/fs/ramfs/file-nommu.c @@ -123,30 +123,6 @@ add_error: /*****************************************************************************/ /* - * check that file shrinkage doesn't leave any VMAs dangling in midair - */ -static int ramfs_nommu_check_mappings(struct inode *inode, - size_t newsize, size_t size) -{ - struct vm_area_struct *vma; - struct prio_tree_iter iter; - - /* search for VMAs that fall within the dead zone */ - vma_prio_tree_foreach(vma, &iter, &inode->i_mapping->i_mmap, - newsize >> PAGE_SHIFT, - (size + PAGE_SIZE - 1) >> PAGE_SHIFT - ) { - /* found one - only interested if it's shared out of the page - * cache */ - if (vma->vm_flags & VM_SHARED) - return -ETXTBSY; /* not quite true, but near enough */ - } - - return 0; -} - -/*****************************************************************************/ -/* * */ static int ramfs_nommu_resize(struct inode *inode, loff_t newsize, loff_t size) @@ -164,7 +140,7 @@ static int ramfs_nommu_resize(struct inode *inode, loff_t newsize, loff_t size) /* check that a decrease in size doesn't cut off any shared mappings */ if (newsize < size) { - ret = ramfs_nommu_check_mappings(inode, newsize, size); + ret = nommu_shrink_inode_mappings(inode, size, newsize); if (ret < 0) return ret; } diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c index 1150ebb2536..9087b10209e 100644 --- a/fs/reiserfs/inode.c +++ b/fs/reiserfs/inode.c @@ -3062,13 +3062,14 @@ static ssize_t reiserfs_direct_IO(int rw, struct kiocb *iocb, int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) { struct inode *inode = dentry->d_inode; - int error; unsigned int ia_valid; + int depth; + int error; /* must be turned off for recursive notify_change calls */ ia_valid = attr->ia_valid &= ~(ATTR_KILL_SUID|ATTR_KILL_SGID); - reiserfs_write_lock(inode->i_sb); + depth = reiserfs_write_lock_once(inode->i_sb); if (attr->ia_valid & ATTR_SIZE) { /* version 2 items will be caught by the s_maxbytes check ** done for us in vmtruncate @@ -3149,8 +3150,17 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) journal_end(&th, inode->i_sb, jbegin_count); } } - if (!error) + if (!error) { + /* + * Relax the lock here, as it might truncate the + * inode pages and wait for inode pages locks. + * To release such page lock, the owner needs the + * reiserfs lock + */ + reiserfs_write_unlock_once(inode->i_sb, depth); error = inode_setattr(inode, attr); + depth = reiserfs_write_lock_once(inode->i_sb); + } } if (!error && reiserfs_posixacl(inode->i_sb)) { @@ -3159,7 +3169,8 @@ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr) } out: - reiserfs_write_unlock(inode->i_sb); + reiserfs_write_unlock_once(inode->i_sb, depth); + return error; } diff --git a/fs/reiserfs/ioctl.c b/fs/reiserfs/ioctl.c index ace77451ceb..f53505de071 100644 --- a/fs/reiserfs/ioctl.c +++ b/fs/reiserfs/ioctl.c @@ -104,9 +104,10 @@ setflags_out: err = put_user(inode->i_generation, (int __user *)arg); break; case REISERFS_IOC_SETVERSION: - if (!is_owner_or_cap(inode)) + if (!is_owner_or_cap(inode)) { err = -EPERM; break; + } err = mnt_want_write(filp->f_path.mnt); if (err) break; diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c index 83ac4d3b3cb..ba98546fabb 100644 --- a/fs/reiserfs/journal.c +++ b/fs/reiserfs/journal.c @@ -2913,7 +2913,9 @@ int journal_init(struct super_block *sb, const char *j_dev_name, journal->j_mount_id = 10; journal->j_state = 0; atomic_set(&(journal->j_jlock), 0); + reiserfs_write_unlock(sb); journal->j_cnode_free_list = allocate_cnodes(num_cnodes); + reiserfs_write_lock(sb); journal->j_cnode_free_orig = journal->j_cnode_free_list; journal->j_cnode_free = journal->j_cnode_free_list ? num_cnodes : 0; journal->j_cnode_used = 0; diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c index c3b004ee627..81f09fab8ae 100644 --- a/fs/reiserfs/xattr.c +++ b/fs/reiserfs/xattr.c @@ -452,7 +452,9 @@ static int lookup_and_delete_xattr(struct inode *inode, const char *name) } if (dentry->d_inode) { + reiserfs_write_lock(inode->i_sb); err = xattr_unlink(xadir->d_inode, dentry); + reiserfs_write_unlock(inode->i_sb); update_ctime(inode); } @@ -486,17 +488,21 @@ reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *th, if (get_inode_sd_version(inode) == STAT_DATA_V1) return -EOPNOTSUPP; - if (!buffer) - return lookup_and_delete_xattr(inode, name); - reiserfs_write_unlock(inode->i_sb); + + if (!buffer) { + err = lookup_and_delete_xattr(inode, name); + reiserfs_write_lock(inode->i_sb); + return err; + } + dentry = xattr_lookup(inode, name, flags); if (IS_ERR(dentry)) { reiserfs_write_lock(inode->i_sb); return PTR_ERR(dentry); } - down_read(&REISERFS_I(inode)->i_xattr_sem); + down_write(&REISERFS_I(inode)->i_xattr_sem); reiserfs_write_lock(inode->i_sb); @@ -554,8 +560,12 @@ reiserfs_xattr_set_handle(struct reiserfs_transaction_handle *th, .ia_size = buffer_size, .ia_valid = ATTR_SIZE | ATTR_CTIME, }; + + reiserfs_write_unlock(inode->i_sb); mutex_lock_nested(&dentry->d_inode->i_mutex, I_MUTEX_XATTR); down_write(&dentry->d_inode->i_alloc_sem); + reiserfs_write_lock(inode->i_sb); + err = reiserfs_setattr(dentry, &newattrs); up_write(&dentry->d_inode->i_alloc_sem); mutex_unlock(&dentry->d_inode->i_mutex); diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c index cc32e6ada67..dd20a7883f0 100644 --- a/fs/reiserfs/xattr_acl.c +++ b/fs/reiserfs/xattr_acl.c @@ -455,7 +455,9 @@ int reiserfs_acl_chmod(struct inode *inode) return 0; } + reiserfs_write_unlock(inode->i_sb); acl = reiserfs_get_acl(inode, ACL_TYPE_ACCESS); + reiserfs_write_lock(inode->i_sb); if (!acl) return 0; if (IS_ERR(acl)) diff --git a/fs/romfs/super.c b/fs/romfs/super.c index c117fa80d1e..42d21354689 100644 --- a/fs/romfs/super.c +++ b/fs/romfs/super.c @@ -544,6 +544,7 @@ error: error_rsb_inval: ret = -EINVAL; error_rsb: + kfree(rsb); return ret; } diff --git a/fs/ubifs/gc.c b/fs/ubifs/gc.c index 618c2701d3a..e5a3d8e96bb 100644 --- a/fs/ubifs/gc.c +++ b/fs/ubifs/gc.c @@ -54,6 +54,7 @@ */ #include <linux/pagemap.h> +#include <linux/list_sort.h> #include "ubifs.h" /* @@ -108,101 +109,6 @@ static int switch_gc_head(struct ubifs_info *c) } /** - * list_sort - sort a list. - * @priv: private data, passed to @cmp - * @head: the list to sort - * @cmp: the elements comparison function - * - * This function has been implemented by Mark J Roberts <mjr@znex.org>. It - * implements "merge sort" which has O(nlog(n)) complexity. The list is sorted - * in ascending order. - * - * The comparison function @cmp is supposed to return a negative value if @a is - * than @b, and a positive value if @a is greater than @b. If @a and @b are - * equivalent, then it does not matter what this function returns. - */ -static void list_sort(void *priv, struct list_head *head, - int (*cmp)(void *priv, struct list_head *a, - struct list_head *b)) -{ - struct list_head *p, *q, *e, *list, *tail, *oldhead; - int insize, nmerges, psize, qsize, i; - - if (list_empty(head)) - return; - - list = head->next; - list_del(head); - insize = 1; - for (;;) { - p = oldhead = list; - list = tail = NULL; - nmerges = 0; - - while (p) { - nmerges++; - q = p; - psize = 0; - for (i = 0; i < insize; i++) { - psize++; - q = q->next == oldhead ? NULL : q->next; - if (!q) - break; - } - - qsize = insize; - while (psize > 0 || (qsize > 0 && q)) { - if (!psize) { - e = q; - q = q->next; - qsize--; - if (q == oldhead) - q = NULL; - } else if (!qsize || !q) { - e = p; - p = p->next; - psize--; - if (p == oldhead) - p = NULL; - } else if (cmp(priv, p, q) <= 0) { - e = p; - p = p->next; - psize--; - if (p == oldhead) - p = NULL; - } else { - e = q; - q = q->next; - qsize--; - if (q == oldhead) - q = NULL; - } - if (tail) - tail->next = e; - else - list = e; - e->prev = tail; - tail = e; - } - p = q; - } - - tail->next = list; - list->prev = tail; - - if (nmerges <= 1) - break; - - insize *= 2; - } - - head->next = list; - head->prev = list->prev; - list->prev->next = head; - list->prev = head; -} - -/** * data_nodes_cmp - compare 2 data nodes. * @priv: UBIFS file-system description object * @a: first data node diff --git a/fs/xfs/linux-2.6/xfs_acl.c b/fs/xfs/linux-2.6/xfs_acl.c index 2512125dfa7..883ca5ab8af 100644 --- a/fs/xfs/linux-2.6/xfs_acl.c +++ b/fs/xfs/linux-2.6/xfs_acl.c @@ -251,8 +251,9 @@ xfs_set_mode(struct inode *inode, mode_t mode) if (mode != inode->i_mode) { struct iattr iattr; - iattr.ia_valid = ATTR_MODE; + iattr.ia_valid = ATTR_MODE | ATTR_CTIME; iattr.ia_mode = mode; + iattr.ia_ctime = current_fs_time(inode->i_sb); error = -xfs_setattr(XFS_I(inode), &iattr, XFS_ATTR_NOACL); } diff --git a/fs/xfs/linux-2.6/xfs_super.c b/fs/xfs/linux-2.6/xfs_super.c index 09783cc444a..77414db10dc 100644 --- a/fs/xfs/linux-2.6/xfs_super.c +++ b/fs/xfs/linux-2.6/xfs_super.c @@ -954,16 +954,14 @@ xfs_fs_destroy_inode( ASSERT_ALWAYS(!xfs_iflags_test(ip, XFS_IRECLAIM)); /* - * If we have nothing to flush with this inode then complete the - * teardown now, otherwise delay the flush operation. + * We always use background reclaim here because even if the + * inode is clean, it still may be under IO and hence we have + * to take the flush lock. The background reclaim path handles + * this more efficiently than we can here, so simply let background + * reclaim tear down all inodes. */ - if (!xfs_inode_clean(ip)) { - xfs_inode_set_reclaim_tag(ip); - return; - } - out_reclaim: - xfs_ireclaim(ip); + xfs_inode_set_reclaim_tag(ip); } /* diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c index 6fed97a8cd3..1f5e4bb5e97 100644 --- a/fs/xfs/linux-2.6/xfs_sync.c +++ b/fs/xfs/linux-2.6/xfs_sync.c @@ -65,7 +65,6 @@ xfs_inode_ag_lookup( * as the tree is sparse and a gang lookup walks to find * the number of objects requested. */ - read_lock(&pag->pag_ici_lock); if (tag == XFS_ICI_NO_TAG) { nr_found = radix_tree_gang_lookup(&pag->pag_ici_root, (void **)&ip, *first_index, 1); @@ -74,7 +73,7 @@ xfs_inode_ag_lookup( (void **)&ip, *first_index, 1, tag); } if (!nr_found) - goto unlock; + return NULL; /* * Update the index for the next lookup. Catch overflows @@ -84,13 +83,8 @@ xfs_inode_ag_lookup( */ *first_index = XFS_INO_TO_AGINO(mp, ip->i_ino + 1); if (*first_index < XFS_INO_TO_AGINO(mp, ip->i_ino)) - goto unlock; - + return NULL; return ip; - -unlock: - read_unlock(&pag->pag_ici_lock); - return NULL; } STATIC int @@ -100,7 +94,8 @@ xfs_inode_ag_walk( int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag, int flags), int flags, - int tag) + int tag, + int exclusive) { struct xfs_perag *pag = &mp->m_perag[ag]; uint32_t first_index; @@ -114,10 +109,20 @@ restart: int error = 0; xfs_inode_t *ip; + if (exclusive) + write_lock(&pag->pag_ici_lock); + else + read_lock(&pag->pag_ici_lock); ip = xfs_inode_ag_lookup(mp, pag, &first_index, tag); - if (!ip) + if (!ip) { + if (exclusive) + write_unlock(&pag->pag_ici_lock); + else + read_unlock(&pag->pag_ici_lock); break; + } + /* execute releases pag->pag_ici_lock */ error = execute(ip, pag, flags); if (error == EAGAIN) { skipped++; @@ -125,9 +130,8 @@ restart: } if (error) last_error = error; - /* - * bail out if the filesystem is corrupted. - */ + + /* bail out if the filesystem is corrupted. */ if (error == EFSCORRUPTED) break; @@ -148,7 +152,8 @@ xfs_inode_ag_iterator( int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag, int flags), int flags, - int tag) + int tag, + int exclusive) { int error = 0; int last_error = 0; @@ -157,7 +162,8 @@ xfs_inode_ag_iterator( for (ag = 0; ag < mp->m_sb.sb_agcount; ag++) { if (!mp->m_perag[ag].pag_ici_init) continue; - error = xfs_inode_ag_walk(mp, ag, execute, flags, tag); + error = xfs_inode_ag_walk(mp, ag, execute, flags, tag, + exclusive); if (error) { last_error = error; if (error == EFSCORRUPTED) @@ -174,30 +180,31 @@ xfs_sync_inode_valid( struct xfs_perag *pag) { struct inode *inode = VFS_I(ip); + int error = EFSCORRUPTED; /* nothing to sync during shutdown */ - if (XFS_FORCED_SHUTDOWN(ip->i_mount)) { - read_unlock(&pag->pag_ici_lock); - return EFSCORRUPTED; - } + if (XFS_FORCED_SHUTDOWN(ip->i_mount)) + goto out_unlock; - /* - * If we can't get a reference on the inode, it must be in reclaim. - * Leave it for the reclaim code to flush. Also avoid inodes that - * haven't been fully initialised. - */ - if (!igrab(inode)) { - read_unlock(&pag->pag_ici_lock); - return ENOENT; - } - read_unlock(&pag->pag_ici_lock); + /* avoid new or reclaimable inodes. Leave for reclaim code to flush */ + error = ENOENT; + if (xfs_iflags_test(ip, XFS_INEW | XFS_IRECLAIMABLE | XFS_IRECLAIM)) + goto out_unlock; - if (is_bad_inode(inode) || xfs_iflags_test(ip, XFS_INEW)) { + /* If we can't grab the inode, it must on it's way to reclaim. */ + if (!igrab(inode)) + goto out_unlock; + + if (is_bad_inode(inode)) { IRELE(ip); - return ENOENT; + goto out_unlock; } - return 0; + /* inode is valid */ + error = 0; +out_unlock: + read_unlock(&pag->pag_ici_lock); + return error; } STATIC int @@ -282,7 +289,7 @@ xfs_sync_data( ASSERT((flags & ~(SYNC_TRYLOCK|SYNC_WAIT)) == 0); error = xfs_inode_ag_iterator(mp, xfs_sync_inode_data, flags, - XFS_ICI_NO_TAG); + XFS_ICI_NO_TAG, 0); if (error) return XFS_ERROR(error); @@ -304,7 +311,7 @@ xfs_sync_attr( ASSERT((flags & ~SYNC_WAIT) == 0); return xfs_inode_ag_iterator(mp, xfs_sync_inode_attr, flags, - XFS_ICI_NO_TAG); + XFS_ICI_NO_TAG, 0); } STATIC int @@ -664,60 +671,6 @@ xfs_syncd_stop( kthread_stop(mp->m_sync_task); } -STATIC int -xfs_reclaim_inode( - xfs_inode_t *ip, - int sync_mode) -{ - xfs_perag_t *pag = xfs_get_perag(ip->i_mount, ip->i_ino); - - /* The hash lock here protects a thread in xfs_iget_core from - * racing with us on linking the inode back with a vnode. - * Once we have the XFS_IRECLAIM flag set it will not touch - * us. - */ - write_lock(&pag->pag_ici_lock); - spin_lock(&ip->i_flags_lock); - if (__xfs_iflags_test(ip, XFS_IRECLAIM) || - !__xfs_iflags_test(ip, XFS_IRECLAIMABLE)) { - spin_unlock(&ip->i_flags_lock); - write_unlock(&pag->pag_ici_lock); - return -EAGAIN; - } - __xfs_iflags_set(ip, XFS_IRECLAIM); - spin_unlock(&ip->i_flags_lock); - write_unlock(&pag->pag_ici_lock); - xfs_put_perag(ip->i_mount, pag); - - /* - * If the inode is still dirty, then flush it out. If the inode - * is not in the AIL, then it will be OK to flush it delwri as - * long as xfs_iflush() does not keep any references to the inode. - * We leave that decision up to xfs_iflush() since it has the - * knowledge of whether it's OK to simply do a delwri flush of - * the inode or whether we need to wait until the inode is - * pulled from the AIL. - * We get the flush lock regardless, though, just to make sure - * we don't free it while it is being flushed. - */ - xfs_ilock(ip, XFS_ILOCK_EXCL); - xfs_iflock(ip); - - /* - * In the case of a forced shutdown we rely on xfs_iflush() to - * wait for the inode to be unpinned before returning an error. - */ - if (!is_bad_inode(VFS_I(ip)) && xfs_iflush(ip, sync_mode) == 0) { - /* synchronize with xfs_iflush_done */ - xfs_iflock(ip); - xfs_ifunlock(ip); - } - - xfs_iunlock(ip, XFS_ILOCK_EXCL); - xfs_ireclaim(ip); - return 0; -} - void __xfs_inode_set_reclaim_tag( struct xfs_perag *pag, @@ -760,19 +713,55 @@ __xfs_inode_clear_reclaim_tag( } STATIC int -xfs_reclaim_inode_now( +xfs_reclaim_inode( struct xfs_inode *ip, struct xfs_perag *pag, - int flags) + int sync_mode) { - /* ignore if already under reclaim */ - if (xfs_iflags_test(ip, XFS_IRECLAIM)) { - read_unlock(&pag->pag_ici_lock); + /* + * The radix tree lock here protects a thread in xfs_iget from racing + * with us starting reclaim on the inode. Once we have the + * XFS_IRECLAIM flag set it will not touch us. + */ + spin_lock(&ip->i_flags_lock); + ASSERT_ALWAYS(__xfs_iflags_test(ip, XFS_IRECLAIMABLE)); + if (__xfs_iflags_test(ip, XFS_IRECLAIM)) { + /* ignore as it is already under reclaim */ + spin_unlock(&ip->i_flags_lock); + write_unlock(&pag->pag_ici_lock); return 0; } - read_unlock(&pag->pag_ici_lock); + __xfs_iflags_set(ip, XFS_IRECLAIM); + spin_unlock(&ip->i_flags_lock); + write_unlock(&pag->pag_ici_lock); - return xfs_reclaim_inode(ip, flags); + /* + * If the inode is still dirty, then flush it out. If the inode + * is not in the AIL, then it will be OK to flush it delwri as + * long as xfs_iflush() does not keep any references to the inode. + * We leave that decision up to xfs_iflush() since it has the + * knowledge of whether it's OK to simply do a delwri flush of + * the inode or whether we need to wait until the inode is + * pulled from the AIL. + * We get the flush lock regardless, though, just to make sure + * we don't free it while it is being flushed. + */ + xfs_ilock(ip, XFS_ILOCK_EXCL); + xfs_iflock(ip); + + /* + * In the case of a forced shutdown we rely on xfs_iflush() to + * wait for the inode to be unpinned before returning an error. + */ + if (!is_bad_inode(VFS_I(ip)) && xfs_iflush(ip, sync_mode) == 0) { + /* synchronize with xfs_iflush_done */ + xfs_iflock(ip); + xfs_ifunlock(ip); + } + + xfs_iunlock(ip, XFS_ILOCK_EXCL); + xfs_ireclaim(ip); + return 0; } int @@ -780,6 +769,6 @@ xfs_reclaim_inodes( xfs_mount_t *mp, int mode) { - return xfs_inode_ag_iterator(mp, xfs_reclaim_inode_now, mode, - XFS_ICI_RECLAIM_TAG); + return xfs_inode_ag_iterator(mp, xfs_reclaim_inode, mode, + XFS_ICI_RECLAIM_TAG, 1); } diff --git a/fs/xfs/linux-2.6/xfs_sync.h b/fs/xfs/linux-2.6/xfs_sync.h index a500b4d9183..ea932b43335 100644 --- a/fs/xfs/linux-2.6/xfs_sync.h +++ b/fs/xfs/linux-2.6/xfs_sync.h @@ -54,6 +54,6 @@ void __xfs_inode_clear_reclaim_tag(struct xfs_mount *mp, struct xfs_perag *pag, int xfs_sync_inode_valid(struct xfs_inode *ip, struct xfs_perag *pag); int xfs_inode_ag_iterator(struct xfs_mount *mp, int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag, int flags), - int flags, int tag); + int flags, int tag, int write_lock); #endif diff --git a/fs/xfs/linux-2.6/xfs_trace.h b/fs/xfs/linux-2.6/xfs_trace.h index c40834bdee5..c22a608321a 100644 --- a/fs/xfs/linux-2.6/xfs_trace.h +++ b/fs/xfs/linux-2.6/xfs_trace.h @@ -33,51 +33,55 @@ struct xfs_dquot; struct xlog_ticket; struct log; +DECLARE_EVENT_CLASS(xfs_attr_list_class, + TP_PROTO(struct xfs_attr_list_context *ctx), + TP_ARGS(ctx), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + __field(u32, hashval) + __field(u32, blkno) + __field(u32, offset) + __field(void *, alist) + __field(int, bufsize) + __field(int, count) + __field(int, firstu) + __field(int, dupcnt) + __field(int, flags) + ), + TP_fast_assign( + __entry->dev = VFS_I(ctx->dp)->i_sb->s_dev; + __entry->ino = ctx->dp->i_ino; + __entry->hashval = ctx->cursor->hashval; + __entry->blkno = ctx->cursor->blkno; + __entry->offset = ctx->cursor->offset; + __entry->alist = ctx->alist; + __entry->bufsize = ctx->bufsize; + __entry->count = ctx->count; + __entry->firstu = ctx->firstu; + __entry->flags = ctx->flags; + ), + TP_printk("dev %d:%d ino 0x%llx cursor h/b/o 0x%x/0x%x/%u dupcnt %u " + "alist 0x%p size %u count %u firstu %u flags %d %s", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino, + __entry->hashval, + __entry->blkno, + __entry->offset, + __entry->dupcnt, + __entry->alist, + __entry->bufsize, + __entry->count, + __entry->firstu, + __entry->flags, + __print_flags(__entry->flags, "|", XFS_ATTR_FLAGS) + ) +) + #define DEFINE_ATTR_LIST_EVENT(name) \ -TRACE_EVENT(name, \ +DEFINE_EVENT(xfs_attr_list_class, name, \ TP_PROTO(struct xfs_attr_list_context *ctx), \ - TP_ARGS(ctx), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_ino_t, ino) \ - __field(u32, hashval) \ - __field(u32, blkno) \ - __field(u32, offset) \ - __field(void *, alist) \ - __field(int, bufsize) \ - __field(int, count) \ - __field(int, firstu) \ - __field(int, dupcnt) \ - __field(int, flags) \ - ), \ - TP_fast_assign( \ - __entry->dev = VFS_I(ctx->dp)->i_sb->s_dev; \ - __entry->ino = ctx->dp->i_ino; \ - __entry->hashval = ctx->cursor->hashval; \ - __entry->blkno = ctx->cursor->blkno; \ - __entry->offset = ctx->cursor->offset; \ - __entry->alist = ctx->alist; \ - __entry->bufsize = ctx->bufsize; \ - __entry->count = ctx->count; \ - __entry->firstu = ctx->firstu; \ - __entry->flags = ctx->flags; \ - ), \ - TP_printk("dev %d:%d ino 0x%llx cursor h/b/o 0x%x/0x%x/%u dupcnt %u " \ - "alist 0x%p size %u count %u firstu %u flags %d %s", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->ino, \ - __entry->hashval, \ - __entry->blkno, \ - __entry->offset, \ - __entry->dupcnt, \ - __entry->alist, \ - __entry->bufsize, \ - __entry->count, \ - __entry->firstu, \ - __entry->flags, \ - __print_flags(__entry->flags, "|", XFS_ATTR_FLAGS) \ - ) \ -) + TP_ARGS(ctx)) DEFINE_ATTR_LIST_EVENT(xfs_attr_list_sf); DEFINE_ATTR_LIST_EVENT(xfs_attr_list_sf_all); DEFINE_ATTR_LIST_EVENT(xfs_attr_list_leaf); @@ -178,91 +182,99 @@ TRACE_EVENT(xfs_iext_insert, (char *)__entry->caller_ip) ); +DECLARE_EVENT_CLASS(xfs_bmap_class, + TP_PROTO(struct xfs_inode *ip, xfs_extnum_t idx, int state, + unsigned long caller_ip), + TP_ARGS(ip, idx, state, caller_ip), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + __field(xfs_extnum_t, idx) + __field(xfs_fileoff_t, startoff) + __field(xfs_fsblock_t, startblock) + __field(xfs_filblks_t, blockcount) + __field(xfs_exntst_t, state) + __field(int, bmap_state) + __field(unsigned long, caller_ip) + ), + TP_fast_assign( + struct xfs_ifork *ifp = (state & BMAP_ATTRFORK) ? + ip->i_afp : &ip->i_df; + struct xfs_bmbt_irec r; + + xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx), &r); + __entry->dev = VFS_I(ip)->i_sb->s_dev; + __entry->ino = ip->i_ino; + __entry->idx = idx; + __entry->startoff = r.br_startoff; + __entry->startblock = r.br_startblock; + __entry->blockcount = r.br_blockcount; + __entry->state = r.br_state; + __entry->bmap_state = state; + __entry->caller_ip = caller_ip; + ), + TP_printk("dev %d:%d ino 0x%llx state %s idx %ld " + "offset %lld block %s count %lld flag %d caller %pf", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino, + __print_flags(__entry->bmap_state, "|", XFS_BMAP_EXT_FLAGS), + (long)__entry->idx, + __entry->startoff, + xfs_fmtfsblock(__entry->startblock), + __entry->blockcount, + __entry->state, + (char *)__entry->caller_ip) +) + #define DEFINE_BMAP_EVENT(name) \ -TRACE_EVENT(name, \ +DEFINE_EVENT(xfs_bmap_class, name, \ TP_PROTO(struct xfs_inode *ip, xfs_extnum_t idx, int state, \ unsigned long caller_ip), \ - TP_ARGS(ip, idx, state, caller_ip), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_ino_t, ino) \ - __field(xfs_extnum_t, idx) \ - __field(xfs_fileoff_t, startoff) \ - __field(xfs_fsblock_t, startblock) \ - __field(xfs_filblks_t, blockcount) \ - __field(xfs_exntst_t, state) \ - __field(int, bmap_state) \ - __field(unsigned long, caller_ip) \ - ), \ - TP_fast_assign( \ - struct xfs_ifork *ifp = (state & BMAP_ATTRFORK) ? \ - ip->i_afp : &ip->i_df; \ - struct xfs_bmbt_irec r; \ - \ - xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx), &r); \ - __entry->dev = VFS_I(ip)->i_sb->s_dev; \ - __entry->ino = ip->i_ino; \ - __entry->idx = idx; \ - __entry->startoff = r.br_startoff; \ - __entry->startblock = r.br_startblock; \ - __entry->blockcount = r.br_blockcount; \ - __entry->state = r.br_state; \ - __entry->bmap_state = state; \ - __entry->caller_ip = caller_ip; \ - ), \ - TP_printk("dev %d:%d ino 0x%llx state %s idx %ld " \ - "offset %lld block %s count %lld flag %d caller %pf", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->ino, \ - __print_flags(__entry->bmap_state, "|", XFS_BMAP_EXT_FLAGS), \ - (long)__entry->idx, \ - __entry->startoff, \ - xfs_fmtfsblock(__entry->startblock), \ - __entry->blockcount, \ - __entry->state, \ - (char *)__entry->caller_ip) \ -) - + TP_ARGS(ip, idx, state, caller_ip)) DEFINE_BMAP_EVENT(xfs_iext_remove); DEFINE_BMAP_EVENT(xfs_bmap_pre_update); DEFINE_BMAP_EVENT(xfs_bmap_post_update); DEFINE_BMAP_EVENT(xfs_extlist); -#define DEFINE_BUF_EVENT(tname) \ -TRACE_EVENT(tname, \ - TP_PROTO(struct xfs_buf *bp, unsigned long caller_ip), \ - TP_ARGS(bp, caller_ip), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_daddr_t, bno) \ - __field(size_t, buffer_length) \ - __field(int, hold) \ - __field(int, pincount) \ - __field(unsigned, lockval) \ - __field(unsigned, flags) \ - __field(unsigned long, caller_ip) \ - ), \ - TP_fast_assign( \ - __entry->dev = bp->b_target->bt_dev; \ - __entry->bno = bp->b_bn; \ - __entry->buffer_length = bp->b_buffer_length; \ - __entry->hold = atomic_read(&bp->b_hold); \ - __entry->pincount = atomic_read(&bp->b_pin_count); \ - __entry->lockval = xfs_buf_lock_value(bp); \ - __entry->flags = bp->b_flags; \ - __entry->caller_ip = caller_ip; \ - ), \ - TP_printk("dev %d:%d bno 0x%llx len 0x%zx hold %d pincount %d " \ - "lock %d flags %s caller %pf", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - (unsigned long long)__entry->bno, \ - __entry->buffer_length, \ - __entry->hold, \ - __entry->pincount, \ - __entry->lockval, \ - __print_flags(__entry->flags, "|", XFS_BUF_FLAGS), \ - (void *)__entry->caller_ip) \ +DECLARE_EVENT_CLASS(xfs_buf_class, + TP_PROTO(struct xfs_buf *bp, unsigned long caller_ip), + TP_ARGS(bp, caller_ip), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_daddr_t, bno) + __field(size_t, buffer_length) + __field(int, hold) + __field(int, pincount) + __field(unsigned, lockval) + __field(unsigned, flags) + __field(unsigned long, caller_ip) + ), + TP_fast_assign( + __entry->dev = bp->b_target->bt_dev; + __entry->bno = bp->b_bn; + __entry->buffer_length = bp->b_buffer_length; + __entry->hold = atomic_read(&bp->b_hold); + __entry->pincount = atomic_read(&bp->b_pin_count); + __entry->lockval = xfs_buf_lock_value(bp); + __entry->flags = bp->b_flags; + __entry->caller_ip = caller_ip; + ), + TP_printk("dev %d:%d bno 0x%llx len 0x%zx hold %d pincount %d " + "lock %d flags %s caller %pf", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long long)__entry->bno, + __entry->buffer_length, + __entry->hold, + __entry->pincount, + __entry->lockval, + __print_flags(__entry->flags, "|", XFS_BUF_FLAGS), + (void *)__entry->caller_ip) ) + +#define DEFINE_BUF_EVENT(name) \ +DEFINE_EVENT(xfs_buf_class, name, \ + TP_PROTO(struct xfs_buf *bp, unsigned long caller_ip), \ + TP_ARGS(bp, caller_ip)) DEFINE_BUF_EVENT(xfs_buf_init); DEFINE_BUF_EVENT(xfs_buf_free); DEFINE_BUF_EVENT(xfs_buf_hold); @@ -299,41 +311,45 @@ DEFINE_BUF_EVENT(xfs_reset_dqcounts); DEFINE_BUF_EVENT(xfs_inode_item_push); /* pass flags explicitly */ -#define DEFINE_BUF_FLAGS_EVENT(tname) \ -TRACE_EVENT(tname, \ - TP_PROTO(struct xfs_buf *bp, unsigned flags, unsigned long caller_ip), \ - TP_ARGS(bp, flags, caller_ip), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_daddr_t, bno) \ - __field(size_t, buffer_length) \ - __field(int, hold) \ - __field(int, pincount) \ - __field(unsigned, lockval) \ - __field(unsigned, flags) \ - __field(unsigned long, caller_ip) \ - ), \ - TP_fast_assign( \ - __entry->dev = bp->b_target->bt_dev; \ - __entry->bno = bp->b_bn; \ - __entry->buffer_length = bp->b_buffer_length; \ - __entry->flags = flags; \ - __entry->hold = atomic_read(&bp->b_hold); \ - __entry->pincount = atomic_read(&bp->b_pin_count); \ - __entry->lockval = xfs_buf_lock_value(bp); \ - __entry->caller_ip = caller_ip; \ - ), \ - TP_printk("dev %d:%d bno 0x%llx len 0x%zx hold %d pincount %d " \ - "lock %d flags %s caller %pf", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - (unsigned long long)__entry->bno, \ - __entry->buffer_length, \ - __entry->hold, \ - __entry->pincount, \ - __entry->lockval, \ - __print_flags(__entry->flags, "|", XFS_BUF_FLAGS), \ - (void *)__entry->caller_ip) \ +DECLARE_EVENT_CLASS(xfs_buf_flags_class, + TP_PROTO(struct xfs_buf *bp, unsigned flags, unsigned long caller_ip), + TP_ARGS(bp, flags, caller_ip), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_daddr_t, bno) + __field(size_t, buffer_length) + __field(int, hold) + __field(int, pincount) + __field(unsigned, lockval) + __field(unsigned, flags) + __field(unsigned long, caller_ip) + ), + TP_fast_assign( + __entry->dev = bp->b_target->bt_dev; + __entry->bno = bp->b_bn; + __entry->buffer_length = bp->b_buffer_length; + __entry->flags = flags; + __entry->hold = atomic_read(&bp->b_hold); + __entry->pincount = atomic_read(&bp->b_pin_count); + __entry->lockval = xfs_buf_lock_value(bp); + __entry->caller_ip = caller_ip; + ), + TP_printk("dev %d:%d bno 0x%llx len 0x%zx hold %d pincount %d " + "lock %d flags %s caller %pf", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long long)__entry->bno, + __entry->buffer_length, + __entry->hold, + __entry->pincount, + __entry->lockval, + __print_flags(__entry->flags, "|", XFS_BUF_FLAGS), + (void *)__entry->caller_ip) ) + +#define DEFINE_BUF_FLAGS_EVENT(name) \ +DEFINE_EVENT(xfs_buf_flags_class, name, \ + TP_PROTO(struct xfs_buf *bp, unsigned flags, unsigned long caller_ip), \ + TP_ARGS(bp, flags, caller_ip)) DEFINE_BUF_FLAGS_EVENT(xfs_buf_find); DEFINE_BUF_FLAGS_EVENT(xfs_buf_get); DEFINE_BUF_FLAGS_EVENT(xfs_buf_read); @@ -376,55 +392,58 @@ TRACE_EVENT(xfs_buf_ioerror, (void *)__entry->caller_ip) ); -#define DEFINE_BUF_ITEM_EVENT(tname) \ -TRACE_EVENT(tname, \ - TP_PROTO(struct xfs_buf_log_item *bip), \ - TP_ARGS(bip), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_daddr_t, buf_bno) \ - __field(size_t, buf_len) \ - __field(int, buf_hold) \ - __field(int, buf_pincount) \ - __field(int, buf_lockval) \ - __field(unsigned, buf_flags) \ - __field(unsigned, bli_recur) \ - __field(int, bli_refcount) \ - __field(unsigned, bli_flags) \ - __field(void *, li_desc) \ - __field(unsigned, li_flags) \ - ), \ - TP_fast_assign( \ - __entry->dev = bip->bli_buf->b_target->bt_dev; \ - __entry->bli_flags = bip->bli_flags; \ - __entry->bli_recur = bip->bli_recur; \ - __entry->bli_refcount = atomic_read(&bip->bli_refcount); \ - __entry->buf_bno = bip->bli_buf->b_bn; \ - __entry->buf_len = bip->bli_buf->b_buffer_length; \ - __entry->buf_flags = bip->bli_buf->b_flags; \ - __entry->buf_hold = atomic_read(&bip->bli_buf->b_hold); \ - __entry->buf_pincount = \ - atomic_read(&bip->bli_buf->b_pin_count); \ - __entry->buf_lockval = xfs_buf_lock_value(bip->bli_buf); \ - __entry->li_desc = bip->bli_item.li_desc; \ - __entry->li_flags = bip->bli_item.li_flags; \ - ), \ - TP_printk("dev %d:%d bno 0x%llx len 0x%zx hold %d pincount %d " \ - "lock %d flags %s recur %d refcount %d bliflags %s " \ - "lidesc 0x%p liflags %s", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - (unsigned long long)__entry->buf_bno, \ - __entry->buf_len, \ - __entry->buf_hold, \ - __entry->buf_pincount, \ - __entry->buf_lockval, \ - __print_flags(__entry->buf_flags, "|", XFS_BUF_FLAGS), \ - __entry->bli_recur, \ - __entry->bli_refcount, \ - __print_flags(__entry->bli_flags, "|", XFS_BLI_FLAGS), \ - __entry->li_desc, \ - __print_flags(__entry->li_flags, "|", XFS_LI_FLAGS)) \ +DECLARE_EVENT_CLASS(xfs_buf_item_class, + TP_PROTO(struct xfs_buf_log_item *bip), + TP_ARGS(bip), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_daddr_t, buf_bno) + __field(size_t, buf_len) + __field(int, buf_hold) + __field(int, buf_pincount) + __field(int, buf_lockval) + __field(unsigned, buf_flags) + __field(unsigned, bli_recur) + __field(int, bli_refcount) + __field(unsigned, bli_flags) + __field(void *, li_desc) + __field(unsigned, li_flags) + ), + TP_fast_assign( + __entry->dev = bip->bli_buf->b_target->bt_dev; + __entry->bli_flags = bip->bli_flags; + __entry->bli_recur = bip->bli_recur; + __entry->bli_refcount = atomic_read(&bip->bli_refcount); + __entry->buf_bno = bip->bli_buf->b_bn; + __entry->buf_len = bip->bli_buf->b_buffer_length; + __entry->buf_flags = bip->bli_buf->b_flags; + __entry->buf_hold = atomic_read(&bip->bli_buf->b_hold); + __entry->buf_pincount = atomic_read(&bip->bli_buf->b_pin_count); + __entry->buf_lockval = xfs_buf_lock_value(bip->bli_buf); + __entry->li_desc = bip->bli_item.li_desc; + __entry->li_flags = bip->bli_item.li_flags; + ), + TP_printk("dev %d:%d bno 0x%llx len 0x%zx hold %d pincount %d " + "lock %d flags %s recur %d refcount %d bliflags %s " + "lidesc 0x%p liflags %s", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long long)__entry->buf_bno, + __entry->buf_len, + __entry->buf_hold, + __entry->buf_pincount, + __entry->buf_lockval, + __print_flags(__entry->buf_flags, "|", XFS_BUF_FLAGS), + __entry->bli_recur, + __entry->bli_refcount, + __print_flags(__entry->bli_flags, "|", XFS_BLI_FLAGS), + __entry->li_desc, + __print_flags(__entry->li_flags, "|", XFS_LI_FLAGS)) ) + +#define DEFINE_BUF_ITEM_EVENT(name) \ +DEFINE_EVENT(xfs_buf_item_class, name, \ + TP_PROTO(struct xfs_buf_log_item *bip), \ + TP_ARGS(bip)) DEFINE_BUF_ITEM_EVENT(xfs_buf_item_size); DEFINE_BUF_ITEM_EVENT(xfs_buf_item_size_stale); DEFINE_BUF_ITEM_EVENT(xfs_buf_item_format); @@ -450,78 +469,90 @@ DEFINE_BUF_ITEM_EVENT(xfs_trans_bhold); DEFINE_BUF_ITEM_EVENT(xfs_trans_bhold_release); DEFINE_BUF_ITEM_EVENT(xfs_trans_binval); +DECLARE_EVENT_CLASS(xfs_lock_class, + TP_PROTO(struct xfs_inode *ip, unsigned lock_flags, + unsigned long caller_ip), + TP_ARGS(ip, lock_flags, caller_ip), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + __field(int, lock_flags) + __field(unsigned long, caller_ip) + ), + TP_fast_assign( + __entry->dev = VFS_I(ip)->i_sb->s_dev; + __entry->ino = ip->i_ino; + __entry->lock_flags = lock_flags; + __entry->caller_ip = caller_ip; + ), + TP_printk("dev %d:%d ino 0x%llx flags %s caller %pf", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino, + __print_flags(__entry->lock_flags, "|", XFS_LOCK_FLAGS), + (void *)__entry->caller_ip) +) + #define DEFINE_LOCK_EVENT(name) \ -TRACE_EVENT(name, \ +DEFINE_EVENT(xfs_lock_class, name, \ TP_PROTO(struct xfs_inode *ip, unsigned lock_flags, \ unsigned long caller_ip), \ - TP_ARGS(ip, lock_flags, caller_ip), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_ino_t, ino) \ - __field(int, lock_flags) \ - __field(unsigned long, caller_ip) \ - ), \ - TP_fast_assign( \ - __entry->dev = VFS_I(ip)->i_sb->s_dev; \ - __entry->ino = ip->i_ino; \ - __entry->lock_flags = lock_flags; \ - __entry->caller_ip = caller_ip; \ - ), \ - TP_printk("dev %d:%d ino 0x%llx flags %s caller %pf", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->ino, \ - __print_flags(__entry->lock_flags, "|", XFS_LOCK_FLAGS), \ - (void *)__entry->caller_ip) \ -) - + TP_ARGS(ip, lock_flags, caller_ip)) DEFINE_LOCK_EVENT(xfs_ilock); DEFINE_LOCK_EVENT(xfs_ilock_nowait); DEFINE_LOCK_EVENT(xfs_ilock_demote); DEFINE_LOCK_EVENT(xfs_iunlock); +DECLARE_EVENT_CLASS(xfs_iget_class, + TP_PROTO(struct xfs_inode *ip), + TP_ARGS(ip), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + ), + TP_fast_assign( + __entry->dev = VFS_I(ip)->i_sb->s_dev; + __entry->ino = ip->i_ino; + ), + TP_printk("dev %d:%d ino 0x%llx", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino) +) + #define DEFINE_IGET_EVENT(name) \ -TRACE_EVENT(name, \ +DEFINE_EVENT(xfs_iget_class, name, \ TP_PROTO(struct xfs_inode *ip), \ - TP_ARGS(ip), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_ino_t, ino) \ - ), \ - TP_fast_assign( \ - __entry->dev = VFS_I(ip)->i_sb->s_dev; \ - __entry->ino = ip->i_ino; \ - ), \ - TP_printk("dev %d:%d ino 0x%llx", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->ino) \ -) + TP_ARGS(ip)) DEFINE_IGET_EVENT(xfs_iget_skip); DEFINE_IGET_EVENT(xfs_iget_reclaim); DEFINE_IGET_EVENT(xfs_iget_found); DEFINE_IGET_EVENT(xfs_iget_alloc); +DECLARE_EVENT_CLASS(xfs_inode_class, + TP_PROTO(struct xfs_inode *ip, unsigned long caller_ip), + TP_ARGS(ip, caller_ip), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + __field(int, count) + __field(unsigned long, caller_ip) + ), + TP_fast_assign( + __entry->dev = VFS_I(ip)->i_sb->s_dev; + __entry->ino = ip->i_ino; + __entry->count = atomic_read(&VFS_I(ip)->i_count); + __entry->caller_ip = caller_ip; + ), + TP_printk("dev %d:%d ino 0x%llx count %d caller %pf", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino, + __entry->count, + (char *)__entry->caller_ip) +) + #define DEFINE_INODE_EVENT(name) \ -TRACE_EVENT(name, \ +DEFINE_EVENT(xfs_inode_class, name, \ TP_PROTO(struct xfs_inode *ip, unsigned long caller_ip), \ - TP_ARGS(ip, caller_ip), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_ino_t, ino) \ - __field(int, count) \ - __field(unsigned long, caller_ip) \ - ), \ - TP_fast_assign( \ - __entry->dev = VFS_I(ip)->i_sb->s_dev; \ - __entry->ino = ip->i_ino; \ - __entry->count = atomic_read(&VFS_I(ip)->i_count); \ - __entry->caller_ip = caller_ip; \ - ), \ - TP_printk("dev %d:%d ino 0x%llx count %d caller %pf", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->ino, \ - __entry->count, \ - (char *)__entry->caller_ip) \ -) + TP_ARGS(ip, caller_ip)) DEFINE_INODE_EVENT(xfs_ihold); DEFINE_INODE_EVENT(xfs_irele); /* the old xfs_itrace_entry tracer - to be replaced by s.th. in the VFS */ @@ -529,55 +560,59 @@ DEFINE_INODE_EVENT(xfs_inode); #define xfs_itrace_entry(ip) \ trace_xfs_inode(ip, _THIS_IP_) -#define DEFINE_DQUOT_EVENT(tname) \ -TRACE_EVENT(tname, \ - TP_PROTO(struct xfs_dquot *dqp), \ - TP_ARGS(dqp), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(__be32, id) \ - __field(unsigned, flags) \ - __field(unsigned, nrefs) \ - __field(unsigned long long, res_bcount) \ - __field(unsigned long long, bcount) \ - __field(unsigned long long, icount) \ - __field(unsigned long long, blk_hardlimit) \ - __field(unsigned long long, blk_softlimit) \ - __field(unsigned long long, ino_hardlimit) \ - __field(unsigned long long, ino_softlimit) \ - ), \ - TP_fast_assign( \ - __entry->dev = dqp->q_mount->m_super->s_dev; \ - __entry->id = dqp->q_core.d_id; \ - __entry->flags = dqp->dq_flags; \ - __entry->nrefs = dqp->q_nrefs; \ - __entry->res_bcount = dqp->q_res_bcount; \ - __entry->bcount = be64_to_cpu(dqp->q_core.d_bcount); \ - __entry->icount = be64_to_cpu(dqp->q_core.d_icount); \ - __entry->blk_hardlimit = \ - be64_to_cpu(dqp->q_core.d_blk_hardlimit); \ - __entry->blk_softlimit = \ - be64_to_cpu(dqp->q_core.d_blk_softlimit); \ - __entry->ino_hardlimit = \ - be64_to_cpu(dqp->q_core.d_ino_hardlimit); \ - __entry->ino_softlimit = \ - be64_to_cpu(dqp->q_core.d_ino_softlimit); \ +DECLARE_EVENT_CLASS(xfs_dquot_class, + TP_PROTO(struct xfs_dquot *dqp), + TP_ARGS(dqp), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(__be32, id) + __field(unsigned, flags) + __field(unsigned, nrefs) + __field(unsigned long long, res_bcount) + __field(unsigned long long, bcount) + __field(unsigned long long, icount) + __field(unsigned long long, blk_hardlimit) + __field(unsigned long long, blk_softlimit) + __field(unsigned long long, ino_hardlimit) + __field(unsigned long long, ino_softlimit) ), \ - TP_printk("dev %d:%d id 0x%x flags %s nrefs %u res_bc 0x%llx " \ - "bcnt 0x%llx [hard 0x%llx | soft 0x%llx] " \ - "icnt 0x%llx [hard 0x%llx | soft 0x%llx]", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - be32_to_cpu(__entry->id), \ - __print_flags(__entry->flags, "|", XFS_DQ_FLAGS), \ - __entry->nrefs, \ - __entry->res_bcount, \ - __entry->bcount, \ - __entry->blk_hardlimit, \ - __entry->blk_softlimit, \ - __entry->icount, \ - __entry->ino_hardlimit, \ - __entry->ino_softlimit) \ + TP_fast_assign( + __entry->dev = dqp->q_mount->m_super->s_dev; + __entry->id = dqp->q_core.d_id; + __entry->flags = dqp->dq_flags; + __entry->nrefs = dqp->q_nrefs; + __entry->res_bcount = dqp->q_res_bcount; + __entry->bcount = be64_to_cpu(dqp->q_core.d_bcount); + __entry->icount = be64_to_cpu(dqp->q_core.d_icount); + __entry->blk_hardlimit = + be64_to_cpu(dqp->q_core.d_blk_hardlimit); + __entry->blk_softlimit = + be64_to_cpu(dqp->q_core.d_blk_softlimit); + __entry->ino_hardlimit = + be64_to_cpu(dqp->q_core.d_ino_hardlimit); + __entry->ino_softlimit = + be64_to_cpu(dqp->q_core.d_ino_softlimit); + ), + TP_printk("dev %d:%d id 0x%x flags %s nrefs %u res_bc 0x%llx " + "bcnt 0x%llx [hard 0x%llx | soft 0x%llx] " + "icnt 0x%llx [hard 0x%llx | soft 0x%llx]", + MAJOR(__entry->dev), MINOR(__entry->dev), + be32_to_cpu(__entry->id), + __print_flags(__entry->flags, "|", XFS_DQ_FLAGS), + __entry->nrefs, + __entry->res_bcount, + __entry->bcount, + __entry->blk_hardlimit, + __entry->blk_softlimit, + __entry->icount, + __entry->ino_hardlimit, + __entry->ino_softlimit) ) + +#define DEFINE_DQUOT_EVENT(name) \ +DEFINE_EVENT(xfs_dquot_class, name, \ + TP_PROTO(struct xfs_dquot *dqp), \ + TP_ARGS(dqp)) DEFINE_DQUOT_EVENT(xfs_dqadjust); DEFINE_DQUOT_EVENT(xfs_dqshake_dirty); DEFINE_DQUOT_EVENT(xfs_dqshake_unlink); @@ -610,72 +645,75 @@ DEFINE_DQUOT_EVENT(xfs_dqflush_done); DEFINE_IGET_EVENT(xfs_dquot_dqalloc); DEFINE_IGET_EVENT(xfs_dquot_dqdetach); +DECLARE_EVENT_CLASS(xfs_loggrant_class, + TP_PROTO(struct log *log, struct xlog_ticket *tic), + TP_ARGS(log, tic), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(unsigned, trans_type) + __field(char, ocnt) + __field(char, cnt) + __field(int, curr_res) + __field(int, unit_res) + __field(unsigned int, flags) + __field(void *, reserve_headq) + __field(void *, write_headq) + __field(int, grant_reserve_cycle) + __field(int, grant_reserve_bytes) + __field(int, grant_write_cycle) + __field(int, grant_write_bytes) + __field(int, curr_cycle) + __field(int, curr_block) + __field(xfs_lsn_t, tail_lsn) + ), + TP_fast_assign( + __entry->dev = log->l_mp->m_super->s_dev; + __entry->trans_type = tic->t_trans_type; + __entry->ocnt = tic->t_ocnt; + __entry->cnt = tic->t_cnt; + __entry->curr_res = tic->t_curr_res; + __entry->unit_res = tic->t_unit_res; + __entry->flags = tic->t_flags; + __entry->reserve_headq = log->l_reserve_headq; + __entry->write_headq = log->l_write_headq; + __entry->grant_reserve_cycle = log->l_grant_reserve_cycle; + __entry->grant_reserve_bytes = log->l_grant_reserve_bytes; + __entry->grant_write_cycle = log->l_grant_write_cycle; + __entry->grant_write_bytes = log->l_grant_write_bytes; + __entry->curr_cycle = log->l_curr_cycle; + __entry->curr_block = log->l_curr_block; + __entry->tail_lsn = log->l_tail_lsn; + ), + TP_printk("dev %d:%d type %s t_ocnt %u t_cnt %u t_curr_res %u " + "t_unit_res %u t_flags %s reserve_headq 0x%p " + "write_headq 0x%p grant_reserve_cycle %d " + "grant_reserve_bytes %d grant_write_cycle %d " + "grant_write_bytes %d curr_cycle %d curr_block %d " + "tail_cycle %d tail_block %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + __print_symbolic(__entry->trans_type, XFS_TRANS_TYPES), + __entry->ocnt, + __entry->cnt, + __entry->curr_res, + __entry->unit_res, + __print_flags(__entry->flags, "|", XLOG_TIC_FLAGS), + __entry->reserve_headq, + __entry->write_headq, + __entry->grant_reserve_cycle, + __entry->grant_reserve_bytes, + __entry->grant_write_cycle, + __entry->grant_write_bytes, + __entry->curr_cycle, + __entry->curr_block, + CYCLE_LSN(__entry->tail_lsn), + BLOCK_LSN(__entry->tail_lsn) + ) +) -#define DEFINE_LOGGRANT_EVENT(tname) \ -TRACE_EVENT(tname, \ +#define DEFINE_LOGGRANT_EVENT(name) \ +DEFINE_EVENT(xfs_loggrant_class, name, \ TP_PROTO(struct log *log, struct xlog_ticket *tic), \ - TP_ARGS(log, tic), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(unsigned, trans_type) \ - __field(char, ocnt) \ - __field(char, cnt) \ - __field(int, curr_res) \ - __field(int, unit_res) \ - __field(unsigned int, flags) \ - __field(void *, reserve_headq) \ - __field(void *, write_headq) \ - __field(int, grant_reserve_cycle) \ - __field(int, grant_reserve_bytes) \ - __field(int, grant_write_cycle) \ - __field(int, grant_write_bytes) \ - __field(int, curr_cycle) \ - __field(int, curr_block) \ - __field(xfs_lsn_t, tail_lsn) \ - ), \ - TP_fast_assign( \ - __entry->dev = log->l_mp->m_super->s_dev; \ - __entry->trans_type = tic->t_trans_type; \ - __entry->ocnt = tic->t_ocnt; \ - __entry->cnt = tic->t_cnt; \ - __entry->curr_res = tic->t_curr_res; \ - __entry->unit_res = tic->t_unit_res; \ - __entry->flags = tic->t_flags; \ - __entry->reserve_headq = log->l_reserve_headq; \ - __entry->write_headq = log->l_write_headq; \ - __entry->grant_reserve_cycle = log->l_grant_reserve_cycle; \ - __entry->grant_reserve_bytes = log->l_grant_reserve_bytes; \ - __entry->grant_write_cycle = log->l_grant_write_cycle; \ - __entry->grant_write_bytes = log->l_grant_write_bytes; \ - __entry->curr_cycle = log->l_curr_cycle; \ - __entry->curr_block = log->l_curr_block; \ - __entry->tail_lsn = log->l_tail_lsn; \ - ), \ - TP_printk("dev %d:%d type %s t_ocnt %u t_cnt %u t_curr_res %u " \ - "t_unit_res %u t_flags %s reserve_headq 0x%p " \ - "write_headq 0x%p grant_reserve_cycle %d " \ - "grant_reserve_bytes %d grant_write_cycle %d " \ - "grant_write_bytes %d curr_cycle %d curr_block %d " \ - "tail_cycle %d tail_block %d", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __print_symbolic(__entry->trans_type, XFS_TRANS_TYPES), \ - __entry->ocnt, \ - __entry->cnt, \ - __entry->curr_res, \ - __entry->unit_res, \ - __print_flags(__entry->flags, "|", XLOG_TIC_FLAGS), \ - __entry->reserve_headq, \ - __entry->write_headq, \ - __entry->grant_reserve_cycle, \ - __entry->grant_reserve_bytes, \ - __entry->grant_write_cycle, \ - __entry->grant_write_bytes, \ - __entry->curr_cycle, \ - __entry->curr_block, \ - CYCLE_LSN(__entry->tail_lsn), \ - BLOCK_LSN(__entry->tail_lsn) \ - ) \ -) + TP_ARGS(log, tic)) DEFINE_LOGGRANT_EVENT(xfs_log_done_nonperm); DEFINE_LOGGRANT_EVENT(xfs_log_done_perm); DEFINE_LOGGRANT_EVENT(xfs_log_reserve); @@ -815,7 +853,7 @@ TRACE_EVENT(name, \ ), \ TP_printk("dev %d:%d ino 0x%llx size 0x%llx new_size 0x%llx " \ "offset 0x%llx count %zd flags %s " \ - "startoff 0x%llx startblock 0x%llx blockcount 0x%llx", \ + "startoff 0x%llx startblock %s blockcount 0x%llx", \ MAJOR(__entry->dev), MINOR(__entry->dev), \ __entry->ino, \ __entry->size, \ @@ -824,7 +862,7 @@ TRACE_EVENT(name, \ __entry->count, \ __print_flags(__entry->flags, "|", BMAPI_FLAGS), \ __entry->startoff, \ - __entry->startblock, \ + xfs_fmtfsblock(__entry->startblock), \ __entry->blockcount) \ ) DEFINE_IOMAP_EVENT(xfs_iomap_enter); @@ -897,28 +935,32 @@ TRACE_EVENT(xfs_itruncate_start, __entry->toss_finish) ); +DECLARE_EVENT_CLASS(xfs_itrunc_class, + TP_PROTO(struct xfs_inode *ip, xfs_fsize_t new_size), + TP_ARGS(ip, new_size), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + __field(xfs_fsize_t, size) + __field(xfs_fsize_t, new_size) + ), + TP_fast_assign( + __entry->dev = VFS_I(ip)->i_sb->s_dev; + __entry->ino = ip->i_ino; + __entry->size = ip->i_d.di_size; + __entry->new_size = new_size; + ), + TP_printk("dev %d:%d ino 0x%llx size 0x%llx new_size 0x%llx", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino, + __entry->size, + __entry->new_size) +) + #define DEFINE_ITRUNC_EVENT(name) \ -TRACE_EVENT(name, \ +DEFINE_EVENT(xfs_itrunc_class, name, \ TP_PROTO(struct xfs_inode *ip, xfs_fsize_t new_size), \ - TP_ARGS(ip, new_size), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_ino_t, ino) \ - __field(xfs_fsize_t, size) \ - __field(xfs_fsize_t, new_size) \ - ), \ - TP_fast_assign( \ - __entry->dev = VFS_I(ip)->i_sb->s_dev; \ - __entry->ino = ip->i_ino; \ - __entry->size = ip->i_d.di_size; \ - __entry->new_size = new_size; \ - ), \ - TP_printk("dev %d:%d ino 0x%llx size 0x%llx new_size 0x%llx", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->ino, \ - __entry->size, \ - __entry->new_size) \ -) + TP_ARGS(ip, new_size)) DEFINE_ITRUNC_EVENT(xfs_itruncate_finish_start); DEFINE_ITRUNC_EVENT(xfs_itruncate_finish_end); @@ -1037,28 +1079,28 @@ TRACE_EVENT(xfs_alloc_unbusy, TRACE_EVENT(xfs_alloc_busysearch, TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno, xfs_agblock_t agbno, - xfs_extlen_t len, int found), - TP_ARGS(mp, agno, agbno, len, found), + xfs_extlen_t len, xfs_lsn_t lsn), + TP_ARGS(mp, agno, agbno, len, lsn), TP_STRUCT__entry( __field(dev_t, dev) __field(xfs_agnumber_t, agno) __field(xfs_agblock_t, agbno) __field(xfs_extlen_t, len) - __field(int, found) + __field(xfs_lsn_t, lsn) ), TP_fast_assign( __entry->dev = mp->m_super->s_dev; __entry->agno = agno; __entry->agbno = agbno; __entry->len = len; - __entry->found = found; + __entry->lsn = lsn; ), - TP_printk("dev %d:%d agno %u agbno %u len %u %s", + TP_printk("dev %d:%d agno %u agbno %u len %u force lsn 0x%llx", MAJOR(__entry->dev), MINOR(__entry->dev), __entry->agno, __entry->agbno, __entry->len, - __print_symbolic(__entry->found, XFS_BUSY_STATES)) + __entry->lsn) ); TRACE_EVENT(xfs_agf, @@ -1152,77 +1194,80 @@ TRACE_EVENT(xfs_free_extent, ); -#define DEFINE_ALLOC_EVENT(name) \ -TRACE_EVENT(name, \ - TP_PROTO(struct xfs_alloc_arg *args), \ - TP_ARGS(args), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_agnumber_t, agno) \ - __field(xfs_agblock_t, agbno) \ - __field(xfs_extlen_t, minlen) \ - __field(xfs_extlen_t, maxlen) \ - __field(xfs_extlen_t, mod) \ - __field(xfs_extlen_t, prod) \ - __field(xfs_extlen_t, minleft) \ - __field(xfs_extlen_t, total) \ - __field(xfs_extlen_t, alignment) \ - __field(xfs_extlen_t, minalignslop) \ - __field(xfs_extlen_t, len) \ - __field(short, type) \ - __field(short, otype) \ - __field(char, wasdel) \ - __field(char, wasfromfl) \ - __field(char, isfl) \ - __field(char, userdata) \ - __field(xfs_fsblock_t, firstblock) \ - ), \ - TP_fast_assign( \ - __entry->dev = args->mp->m_super->s_dev; \ - __entry->agno = args->agno; \ - __entry->agbno = args->agbno; \ - __entry->minlen = args->minlen; \ - __entry->maxlen = args->maxlen; \ - __entry->mod = args->mod; \ - __entry->prod = args->prod; \ - __entry->minleft = args->minleft; \ - __entry->total = args->total; \ - __entry->alignment = args->alignment; \ - __entry->minalignslop = args->minalignslop; \ - __entry->len = args->len; \ - __entry->type = args->type; \ - __entry->otype = args->otype; \ - __entry->wasdel = args->wasdel; \ - __entry->wasfromfl = args->wasfromfl; \ - __entry->isfl = args->isfl; \ - __entry->userdata = args->userdata; \ - __entry->firstblock = args->firstblock; \ - ), \ - TP_printk("dev %d:%d agno %u agbno %u minlen %u maxlen %u mod %u " \ - "prod %u minleft %u total %u alignment %u minalignslop %u " \ - "len %u type %s otype %s wasdel %d wasfromfl %d isfl %d " \ - "userdata %d firstblock 0x%llx", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->agno, \ - __entry->agbno, \ - __entry->minlen, \ - __entry->maxlen, \ - __entry->mod, \ - __entry->prod, \ - __entry->minleft, \ - __entry->total, \ - __entry->alignment, \ - __entry->minalignslop, \ - __entry->len, \ - __print_symbolic(__entry->type, XFS_ALLOC_TYPES), \ - __print_symbolic(__entry->otype, XFS_ALLOC_TYPES), \ - __entry->wasdel, \ - __entry->wasfromfl, \ - __entry->isfl, \ - __entry->userdata, \ - __entry->firstblock) \ +DECLARE_EVENT_CLASS(xfs_alloc_class, + TP_PROTO(struct xfs_alloc_arg *args), + TP_ARGS(args), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_agnumber_t, agno) + __field(xfs_agblock_t, agbno) + __field(xfs_extlen_t, minlen) + __field(xfs_extlen_t, maxlen) + __field(xfs_extlen_t, mod) + __field(xfs_extlen_t, prod) + __field(xfs_extlen_t, minleft) + __field(xfs_extlen_t, total) + __field(xfs_extlen_t, alignment) + __field(xfs_extlen_t, minalignslop) + __field(xfs_extlen_t, len) + __field(short, type) + __field(short, otype) + __field(char, wasdel) + __field(char, wasfromfl) + __field(char, isfl) + __field(char, userdata) + __field(xfs_fsblock_t, firstblock) + ), + TP_fast_assign( + __entry->dev = args->mp->m_super->s_dev; + __entry->agno = args->agno; + __entry->agbno = args->agbno; + __entry->minlen = args->minlen; + __entry->maxlen = args->maxlen; + __entry->mod = args->mod; + __entry->prod = args->prod; + __entry->minleft = args->minleft; + __entry->total = args->total; + __entry->alignment = args->alignment; + __entry->minalignslop = args->minalignslop; + __entry->len = args->len; + __entry->type = args->type; + __entry->otype = args->otype; + __entry->wasdel = args->wasdel; + __entry->wasfromfl = args->wasfromfl; + __entry->isfl = args->isfl; + __entry->userdata = args->userdata; + __entry->firstblock = args->firstblock; + ), + TP_printk("dev %d:%d agno %u agbno %u minlen %u maxlen %u mod %u " + "prod %u minleft %u total %u alignment %u minalignslop %u " + "len %u type %s otype %s wasdel %d wasfromfl %d isfl %d " + "userdata %d firstblock 0x%llx", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->agno, + __entry->agbno, + __entry->minlen, + __entry->maxlen, + __entry->mod, + __entry->prod, + __entry->minleft, + __entry->total, + __entry->alignment, + __entry->minalignslop, + __entry->len, + __print_symbolic(__entry->type, XFS_ALLOC_TYPES), + __print_symbolic(__entry->otype, XFS_ALLOC_TYPES), + __entry->wasdel, + __entry->wasfromfl, + __entry->isfl, + __entry->userdata, + __entry->firstblock) ) +#define DEFINE_ALLOC_EVENT(name) \ +DEFINE_EVENT(xfs_alloc_class, name, \ + TP_PROTO(struct xfs_alloc_arg *args), \ + TP_ARGS(args)) DEFINE_ALLOC_EVENT(xfs_alloc_exact_done); DEFINE_ALLOC_EVENT(xfs_alloc_exact_error); DEFINE_ALLOC_EVENT(xfs_alloc_near_nominleft); @@ -1245,92 +1290,100 @@ DEFINE_ALLOC_EVENT(xfs_alloc_vextent_noagbp); DEFINE_ALLOC_EVENT(xfs_alloc_vextent_loopfailed); DEFINE_ALLOC_EVENT(xfs_alloc_vextent_allfailed); -#define DEFINE_DIR2_TRACE(tname) \ -TRACE_EVENT(tname, \ +DECLARE_EVENT_CLASS(xfs_dir2_class, + TP_PROTO(struct xfs_da_args *args), + TP_ARGS(args), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + __dynamic_array(char, name, args->namelen) + __field(int, namelen) + __field(xfs_dahash_t, hashval) + __field(xfs_ino_t, inumber) + __field(int, op_flags) + ), + TP_fast_assign( + __entry->dev = VFS_I(args->dp)->i_sb->s_dev; + __entry->ino = args->dp->i_ino; + if (args->namelen) + memcpy(__get_str(name), args->name, args->namelen); + __entry->namelen = args->namelen; + __entry->hashval = args->hashval; + __entry->inumber = args->inumber; + __entry->op_flags = args->op_flags; + ), + TP_printk("dev %d:%d ino 0x%llx name %.*s namelen %d hashval 0x%x " + "inumber 0x%llx op_flags %s", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino, + __entry->namelen, + __entry->namelen ? __get_str(name) : NULL, + __entry->namelen, + __entry->hashval, + __entry->inumber, + __print_flags(__entry->op_flags, "|", XFS_DA_OP_FLAGS)) +) + +#define DEFINE_DIR2_EVENT(name) \ +DEFINE_EVENT(xfs_dir2_class, name, \ TP_PROTO(struct xfs_da_args *args), \ - TP_ARGS(args), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_ino_t, ino) \ - __dynamic_array(char, name, args->namelen) \ - __field(int, namelen) \ - __field(xfs_dahash_t, hashval) \ - __field(xfs_ino_t, inumber) \ - __field(int, op_flags) \ - ), \ - TP_fast_assign( \ - __entry->dev = VFS_I(args->dp)->i_sb->s_dev; \ - __entry->ino = args->dp->i_ino; \ - if (args->namelen) \ - memcpy(__get_str(name), args->name, args->namelen); \ - __entry->namelen = args->namelen; \ - __entry->hashval = args->hashval; \ - __entry->inumber = args->inumber; \ - __entry->op_flags = args->op_flags; \ - ), \ - TP_printk("dev %d:%d ino 0x%llx name %.*s namelen %d hashval 0x%x " \ - "inumber 0x%llx op_flags %s", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->ino, \ - __entry->namelen, \ - __entry->namelen ? __get_str(name) : NULL, \ - __entry->namelen, \ - __entry->hashval, \ - __entry->inumber, \ - __print_flags(__entry->op_flags, "|", XFS_DA_OP_FLAGS)) \ + TP_ARGS(args)) +DEFINE_DIR2_EVENT(xfs_dir2_sf_addname); +DEFINE_DIR2_EVENT(xfs_dir2_sf_create); +DEFINE_DIR2_EVENT(xfs_dir2_sf_lookup); +DEFINE_DIR2_EVENT(xfs_dir2_sf_replace); +DEFINE_DIR2_EVENT(xfs_dir2_sf_removename); +DEFINE_DIR2_EVENT(xfs_dir2_sf_toino4); +DEFINE_DIR2_EVENT(xfs_dir2_sf_toino8); +DEFINE_DIR2_EVENT(xfs_dir2_sf_to_block); +DEFINE_DIR2_EVENT(xfs_dir2_block_addname); +DEFINE_DIR2_EVENT(xfs_dir2_block_lookup); +DEFINE_DIR2_EVENT(xfs_dir2_block_replace); +DEFINE_DIR2_EVENT(xfs_dir2_block_removename); +DEFINE_DIR2_EVENT(xfs_dir2_block_to_sf); +DEFINE_DIR2_EVENT(xfs_dir2_block_to_leaf); +DEFINE_DIR2_EVENT(xfs_dir2_leaf_addname); +DEFINE_DIR2_EVENT(xfs_dir2_leaf_lookup); +DEFINE_DIR2_EVENT(xfs_dir2_leaf_replace); +DEFINE_DIR2_EVENT(xfs_dir2_leaf_removename); +DEFINE_DIR2_EVENT(xfs_dir2_leaf_to_block); +DEFINE_DIR2_EVENT(xfs_dir2_leaf_to_node); +DEFINE_DIR2_EVENT(xfs_dir2_node_addname); +DEFINE_DIR2_EVENT(xfs_dir2_node_lookup); +DEFINE_DIR2_EVENT(xfs_dir2_node_replace); +DEFINE_DIR2_EVENT(xfs_dir2_node_removename); +DEFINE_DIR2_EVENT(xfs_dir2_node_to_leaf); + +DECLARE_EVENT_CLASS(xfs_dir2_space_class, + TP_PROTO(struct xfs_da_args *args, int idx), + TP_ARGS(args, idx), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(xfs_ino_t, ino) + __field(int, op_flags) + __field(int, idx) + ), + TP_fast_assign( + __entry->dev = VFS_I(args->dp)->i_sb->s_dev; + __entry->ino = args->dp->i_ino; + __entry->op_flags = args->op_flags; + __entry->idx = idx; + ), + TP_printk("dev %d:%d ino 0x%llx op_flags %s index %d", + MAJOR(__entry->dev), MINOR(__entry->dev), + __entry->ino, + __print_flags(__entry->op_flags, "|", XFS_DA_OP_FLAGS), + __entry->idx) ) -DEFINE_DIR2_TRACE(xfs_dir2_sf_addname); -DEFINE_DIR2_TRACE(xfs_dir2_sf_create); -DEFINE_DIR2_TRACE(xfs_dir2_sf_lookup); -DEFINE_DIR2_TRACE(xfs_dir2_sf_replace); -DEFINE_DIR2_TRACE(xfs_dir2_sf_removename); -DEFINE_DIR2_TRACE(xfs_dir2_sf_toino4); -DEFINE_DIR2_TRACE(xfs_dir2_sf_toino8); -DEFINE_DIR2_TRACE(xfs_dir2_sf_to_block); -DEFINE_DIR2_TRACE(xfs_dir2_block_addname); -DEFINE_DIR2_TRACE(xfs_dir2_block_lookup); -DEFINE_DIR2_TRACE(xfs_dir2_block_replace); -DEFINE_DIR2_TRACE(xfs_dir2_block_removename); -DEFINE_DIR2_TRACE(xfs_dir2_block_to_sf); -DEFINE_DIR2_TRACE(xfs_dir2_block_to_leaf); -DEFINE_DIR2_TRACE(xfs_dir2_leaf_addname); -DEFINE_DIR2_TRACE(xfs_dir2_leaf_lookup); -DEFINE_DIR2_TRACE(xfs_dir2_leaf_replace); -DEFINE_DIR2_TRACE(xfs_dir2_leaf_removename); -DEFINE_DIR2_TRACE(xfs_dir2_leaf_to_block); -DEFINE_DIR2_TRACE(xfs_dir2_leaf_to_node); -DEFINE_DIR2_TRACE(xfs_dir2_node_addname); -DEFINE_DIR2_TRACE(xfs_dir2_node_lookup); -DEFINE_DIR2_TRACE(xfs_dir2_node_replace); -DEFINE_DIR2_TRACE(xfs_dir2_node_removename); -DEFINE_DIR2_TRACE(xfs_dir2_node_to_leaf); -#define DEFINE_DIR2_SPACE_TRACE(tname) \ -TRACE_EVENT(tname, \ +#define DEFINE_DIR2_SPACE_EVENT(name) \ +DEFINE_EVENT(xfs_dir2_space_class, name, \ TP_PROTO(struct xfs_da_args *args, int idx), \ - TP_ARGS(args, idx), \ - TP_STRUCT__entry( \ - __field(dev_t, dev) \ - __field(xfs_ino_t, ino) \ - __field(int, op_flags) \ - __field(int, idx) \ - ), \ - TP_fast_assign( \ - __entry->dev = VFS_I(args->dp)->i_sb->s_dev; \ - __entry->ino = args->dp->i_ino; \ - __entry->op_flags = args->op_flags; \ - __entry->idx = idx; \ - ), \ - TP_printk("dev %d:%d ino 0x%llx op_flags %s index %d", \ - MAJOR(__entry->dev), MINOR(__entry->dev), \ - __entry->ino, \ - __print_flags(__entry->op_flags, "|", XFS_DA_OP_FLAGS), \ - __entry->idx) \ -) -DEFINE_DIR2_SPACE_TRACE(xfs_dir2_leafn_add); -DEFINE_DIR2_SPACE_TRACE(xfs_dir2_leafn_remove); -DEFINE_DIR2_SPACE_TRACE(xfs_dir2_grow_inode); -DEFINE_DIR2_SPACE_TRACE(xfs_dir2_shrink_inode); + TP_ARGS(args, idx)) +DEFINE_DIR2_SPACE_EVENT(xfs_dir2_leafn_add); +DEFINE_DIR2_SPACE_EVENT(xfs_dir2_leafn_remove); +DEFINE_DIR2_SPACE_EVENT(xfs_dir2_grow_inode); +DEFINE_DIR2_SPACE_EVENT(xfs_dir2_shrink_inode); TRACE_EVENT(xfs_dir2_leafn_moveents, TP_PROTO(struct xfs_da_args *args, int src_idx, int dst_idx, int count), diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c index 71af76fe8a2..873e07e2907 100644 --- a/fs/xfs/quota/xfs_qm_syscalls.c +++ b/fs/xfs/quota/xfs_qm_syscalls.c @@ -891,7 +891,7 @@ xfs_qm_dqrele_all_inodes( uint flags) { ASSERT(mp->m_quotainfo); - xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags, XFS_ICI_NO_TAG); + xfs_inode_ag_iterator(mp, xfs_dqrele_inode, flags, XFS_ICI_NO_TAG, 0); } /*------------------------------------------------------------------------*/ diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c index a1c65fc6d9c..275b1f4f943 100644 --- a/fs/xfs/xfs_alloc.c +++ b/fs/xfs/xfs_alloc.c @@ -2563,43 +2563,41 @@ xfs_alloc_search_busy(xfs_trans_t *tp, xfs_mount_t *mp; xfs_perag_busy_t *bsy; xfs_agblock_t uend, bend; - xfs_lsn_t lsn; + xfs_lsn_t lsn = 0; int cnt; mp = tp->t_mountp; spin_lock(&mp->m_perag[agno].pagb_lock); - cnt = mp->m_perag[agno].pagb_count; uend = bno + len - 1; - /* search pagb_list for this slot, skipping open slots */ - for (bsy = mp->m_perag[agno].pagb_list; cnt; bsy++) { + /* + * search pagb_list for this slot, skipping open slots. We have to + * search the entire array as there may be multiple overlaps and + * we have to get the most recent LSN for the log force to push out + * all the transactions that span the range. + */ + for (cnt = 0; cnt < mp->m_perag[agno].pagb_count; cnt++) { + bsy = &mp->m_perag[agno].pagb_list[cnt]; + if (!bsy->busy_tp) + continue; - /* - * (start1,length1) within (start2, length2) - */ - if (bsy->busy_tp != NULL) { - bend = bsy->busy_start + bsy->busy_length - 1; - if ((bno > bend) || (uend < bsy->busy_start)) { - cnt--; - } else { - break; - } - } - } + bend = bsy->busy_start + bsy->busy_length - 1; + if (bno > bend || uend < bsy->busy_start) + continue; - trace_xfs_alloc_busysearch(mp, agno, bno, len, !!cnt); + /* (start1,length1) within (start2, length2) */ + if (XFS_LSN_CMP(bsy->busy_tp->t_commit_lsn, lsn) > 0) + lsn = bsy->busy_tp->t_commit_lsn; + } + spin_unlock(&mp->m_perag[agno].pagb_lock); + trace_xfs_alloc_busysearch(tp->t_mountp, agno, bno, len, lsn); /* * If a block was found, force the log through the LSN of the * transaction that freed the block */ - if (cnt) { - lsn = bsy->busy_tp->t_commit_lsn; - spin_unlock(&mp->m_perag[agno].pagb_lock); + if (lsn) xfs_log_force(mp, lsn, XFS_LOG_FORCE|XFS_LOG_SYNC); - } else { - spin_unlock(&mp->m_perag[agno].pagb_lock); - } } diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c index d1483a4f71b..84ca1cf16a1 100644 --- a/fs/xfs/xfs_dfrag.c +++ b/fs/xfs/xfs_dfrag.c @@ -114,10 +114,82 @@ xfs_swapext( return error; } +/* + * We need to check that the format of the data fork in the temporary inode is + * valid for the target inode before doing the swap. This is not a problem with + * attr1 because of the fixed fork offset, but attr2 has a dynamically sized + * data fork depending on the space the attribute fork is taking so we can get + * invalid formats on the target inode. + * + * E.g. target has space for 7 extents in extent format, temp inode only has + * space for 6. If we defragment down to 7 extents, then the tmp format is a + * btree, but when swapped it needs to be in extent format. Hence we can't just + * blindly swap data forks on attr2 filesystems. + * + * Note that we check the swap in both directions so that we don't end up with + * a corrupt temporary inode, either. + * + * Note that fixing the way xfs_fsr sets up the attribute fork in the source + * inode will prevent this situation from occurring, so all we do here is + * reject and log the attempt. basically we are putting the responsibility on + * userspace to get this right. + */ +static int +xfs_swap_extents_check_format( + xfs_inode_t *ip, /* target inode */ + xfs_inode_t *tip) /* tmp inode */ +{ + + /* Should never get a local format */ + if (ip->i_d.di_format == XFS_DINODE_FMT_LOCAL || + tip->i_d.di_format == XFS_DINODE_FMT_LOCAL) + return EINVAL; + + /* + * if the target inode has less extents that then temporary inode then + * why did userspace call us? + */ + if (ip->i_d.di_nextents < tip->i_d.di_nextents) + return EINVAL; + + /* + * if the target inode is in extent form and the temp inode is in btree + * form then we will end up with the target inode in the wrong format + * as we already know there are less extents in the temp inode. + */ + if (ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS && + tip->i_d.di_format == XFS_DINODE_FMT_BTREE) + return EINVAL; + + /* Check temp in extent form to max in target */ + if (tip->i_d.di_format == XFS_DINODE_FMT_EXTENTS && + XFS_IFORK_NEXTENTS(tip, XFS_DATA_FORK) > ip->i_df.if_ext_max) + return EINVAL; + + /* Check target in extent form to max in temp */ + if (ip->i_d.di_format == XFS_DINODE_FMT_EXTENTS && + XFS_IFORK_NEXTENTS(ip, XFS_DATA_FORK) > tip->i_df.if_ext_max) + return EINVAL; + + /* Check root block of temp in btree form to max in target */ + if (tip->i_d.di_format == XFS_DINODE_FMT_BTREE && + XFS_IFORK_BOFF(ip) && + tip->i_df.if_broot_bytes > XFS_IFORK_BOFF(ip)) + return EINVAL; + + /* Check root block of target in btree form to max in temp */ + if (ip->i_d.di_format == XFS_DINODE_FMT_BTREE && + XFS_IFORK_BOFF(tip) && + ip->i_df.if_broot_bytes > XFS_IFORK_BOFF(tip)) + return EINVAL; + + return 0; +} + int xfs_swap_extents( - xfs_inode_t *ip, - xfs_inode_t *tip, + xfs_inode_t *ip, /* target inode */ + xfs_inode_t *tip, /* tmp inode */ xfs_swapext_t *sxp) { xfs_mount_t *mp; @@ -161,13 +233,6 @@ xfs_swap_extents( goto out_unlock; } - /* Should never get a local format */ - if (ip->i_d.di_format == XFS_DINODE_FMT_LOCAL || - tip->i_d.di_format == XFS_DINODE_FMT_LOCAL) { - error = XFS_ERROR(EINVAL); - goto out_unlock; - } - if (VN_CACHED(VFS_I(tip)) != 0) { error = xfs_flushinval_pages(tip, 0, -1, FI_REMAPF_LOCKED); @@ -189,13 +254,12 @@ xfs_swap_extents( goto out_unlock; } - /* - * If the target has extended attributes, the tmp file - * must also in order to ensure the correct data fork - * format. - */ - if ( XFS_IFORK_Q(ip) != XFS_IFORK_Q(tip) ) { - error = XFS_ERROR(EINVAL); + /* check inode formats now that data is flushed */ + error = xfs_swap_extents_check_format(ip, tip); + if (error) { + xfs_fs_cmn_err(CE_NOTE, mp, + "%s: inode 0x%llx format is incompatible for exchanging.", + __FILE__, ip->i_ino); goto out_unlock; } @@ -276,6 +340,16 @@ xfs_swap_extents( *tifp = *tempifp; /* struct copy */ /* + * Fix the in-memory data fork values that are dependent on the fork + * offset in the inode. We can't assume they remain the same as attr2 + * has dynamic fork offsets. + */ + ifp->if_ext_max = XFS_IFORK_SIZE(ip, XFS_DATA_FORK) / + (uint)sizeof(xfs_bmbt_rec_t); + tifp->if_ext_max = XFS_IFORK_SIZE(tip, XFS_DATA_FORK) / + (uint)sizeof(xfs_bmbt_rec_t); + + /* * Fix the on-disk inode values */ tmp = (__uint64_t)ip->i_d.di_nblocks; diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c index fa402a6bbbc..155e798f30a 100644 --- a/fs/xfs/xfs_iget.c +++ b/fs/xfs/xfs_iget.c @@ -73,7 +73,6 @@ xfs_inode_alloc( ASSERT(atomic_read(&ip->i_pincount) == 0); ASSERT(!spin_is_locked(&ip->i_flags_lock)); ASSERT(completion_done(&ip->i_flush)); - ASSERT(!rwsem_is_locked(&ip->i_iolock.mr_lock)); mrlock_init(&ip->i_iolock, MRLOCK_BARRIER, "xfsio", ip->i_ino); diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c index ce278b3ae7f..ef77fd88c8e 100644 --- a/fs/xfs/xfs_inode.c +++ b/fs/xfs/xfs_inode.c @@ -2841,8 +2841,8 @@ xfs_iflush( mp = ip->i_mount; /* - * If the inode isn't dirty, then just release the inode - * flush lock and do nothing. + * If the inode isn't dirty, then just release the inode flush lock and + * do nothing. */ if (xfs_inode_clean(ip)) { xfs_ifunlock(ip); @@ -2868,6 +2868,19 @@ xfs_iflush( xfs_iunpin_wait(ip); /* + * For stale inodes we cannot rely on the backing buffer remaining + * stale in cache for the remaining life of the stale inode and so + * xfs_itobp() below may give us a buffer that no longer contains + * inodes below. We have to check this after ensuring the inode is + * unpinned so that it is safe to reclaim the stale inode after the + * flush call. + */ + if (xfs_iflags_test(ip, XFS_ISTALE)) { + xfs_ifunlock(ip); + return 0; + } + + /* * This may have been unpinned because the filesystem is shutting * down forcibly. If that's the case we must not write this inode * to disk, because the log record didn't make it to disk! diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c index 9e15a118536..6be05f756d5 100644 --- a/fs/xfs/xfs_rtalloc.c +++ b/fs/xfs/xfs_rtalloc.c @@ -1517,6 +1517,8 @@ xfs_rtfree_range( */ error = xfs_rtfind_forw(mp, tp, end, mp->m_sb.sb_rextents - 1, &postblock); + if (error) + return error; /* * If there are blocks not being freed at the front of the * old extent, add summary data for them to be allocated. diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c index 6558ffd8d14..6f268756bf3 100644 --- a/fs/xfs/xfs_vnodeops.c +++ b/fs/xfs/xfs_vnodeops.c @@ -70,7 +70,6 @@ xfs_setattr( uint commit_flags=0; uid_t uid=0, iuid=0; gid_t gid=0, igid=0; - int timeflags = 0; struct xfs_dquot *udqp, *gdqp, *olddquot1, *olddquot2; int need_iolock = 1; @@ -135,16 +134,13 @@ xfs_setattr( if (flags & XFS_ATTR_NOLOCK) need_iolock = 0; if (!(mask & ATTR_SIZE)) { - if ((mask != (ATTR_CTIME|ATTR_ATIME|ATTR_MTIME)) || - (mp->m_flags & XFS_MOUNT_WSYNC)) { - tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_NOT_SIZE); - commit_flags = 0; - if ((code = xfs_trans_reserve(tp, 0, - XFS_ICHANGE_LOG_RES(mp), 0, - 0, 0))) { - lock_flags = 0; - goto error_return; - } + tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_NOT_SIZE); + commit_flags = 0; + code = xfs_trans_reserve(tp, 0, XFS_ICHANGE_LOG_RES(mp), + 0, 0, 0); + if (code) { + lock_flags = 0; + goto error_return; } } else { if (DM_EVENT_ENABLED(ip, DM_EVENT_TRUNCATE) && @@ -295,15 +291,23 @@ xfs_setattr( * or we are explicitly asked to change it. This handles * the semantic difference between truncate() and ftruncate() * as implemented in the VFS. + * + * The regular truncate() case without ATTR_CTIME and ATTR_MTIME + * is a special case where we need to update the times despite + * not having these flags set. For all other operations the + * VFS set these flags explicitly if it wants a timestamp + * update. */ - if (iattr->ia_size != ip->i_size || (mask & ATTR_CTIME)) - timeflags |= XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG; + if (iattr->ia_size != ip->i_size && + (!(mask & (ATTR_CTIME | ATTR_MTIME)))) { + iattr->ia_ctime = iattr->ia_mtime = + current_fs_time(inode->i_sb); + mask |= ATTR_CTIME | ATTR_MTIME; + } if (iattr->ia_size > ip->i_size) { ip->i_d.di_size = iattr->ia_size; ip->i_size = iattr->ia_size; - if (!(flags & XFS_ATTR_DMI)) - xfs_ichgtime(ip, XFS_ICHGTIME_CHG); xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); } else if (iattr->ia_size <= ip->i_size || (iattr->ia_size == 0 && ip->i_d.di_nextents)) { @@ -374,9 +378,6 @@ xfs_setattr( ip->i_d.di_gid = gid; inode->i_gid = gid; } - - xfs_trans_log_inode (tp, ip, XFS_ILOG_CORE); - timeflags |= XFS_ICHGTIME_CHG; } /* @@ -393,51 +394,37 @@ xfs_setattr( inode->i_mode &= S_IFMT; inode->i_mode |= mode & ~S_IFMT; - - xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); - timeflags |= XFS_ICHGTIME_CHG; } /* * Change file access or modified times. */ - if (mask & (ATTR_ATIME|ATTR_MTIME)) { - if (mask & ATTR_ATIME) { - inode->i_atime = iattr->ia_atime; - ip->i_d.di_atime.t_sec = iattr->ia_atime.tv_sec; - ip->i_d.di_atime.t_nsec = iattr->ia_atime.tv_nsec; - ip->i_update_core = 1; - } - if (mask & ATTR_MTIME) { - inode->i_mtime = iattr->ia_mtime; - ip->i_d.di_mtime.t_sec = iattr->ia_mtime.tv_sec; - ip->i_d.di_mtime.t_nsec = iattr->ia_mtime.tv_nsec; - timeflags &= ~XFS_ICHGTIME_MOD; - timeflags |= XFS_ICHGTIME_CHG; - } - if (tp && (mask & (ATTR_MTIME_SET|ATTR_ATIME_SET))) - xfs_trans_log_inode (tp, ip, XFS_ILOG_CORE); + if (mask & ATTR_ATIME) { + inode->i_atime = iattr->ia_atime; + ip->i_d.di_atime.t_sec = iattr->ia_atime.tv_sec; + ip->i_d.di_atime.t_nsec = iattr->ia_atime.tv_nsec; + ip->i_update_core = 1; } - - /* - * Change file inode change time only if ATTR_CTIME set - * AND we have been called by a DMI function. - */ - - if ((flags & XFS_ATTR_DMI) && (mask & ATTR_CTIME)) { + if (mask & ATTR_CTIME) { inode->i_ctime = iattr->ia_ctime; ip->i_d.di_ctime.t_sec = iattr->ia_ctime.tv_sec; ip->i_d.di_ctime.t_nsec = iattr->ia_ctime.tv_nsec; ip->i_update_core = 1; - timeflags &= ~XFS_ICHGTIME_CHG; + } + if (mask & ATTR_MTIME) { + inode->i_mtime = iattr->ia_mtime; + ip->i_d.di_mtime.t_sec = iattr->ia_mtime.tv_sec; + ip->i_d.di_mtime.t_nsec = iattr->ia_mtime.tv_nsec; + ip->i_update_core = 1; } /* - * Send out timestamp changes that need to be set to the - * current time. Not done when called by a DMI function. + * And finally, log the inode core if any attribute in it + * has been changed. */ - if (timeflags && !(flags & XFS_ATTR_DMI)) - xfs_ichgtime(ip, timeflags); + if (mask & (ATTR_UID|ATTR_GID|ATTR_MODE| + ATTR_ATIME|ATTR_CTIME|ATTR_MTIME)) + xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE); XFS_STATS_INC(xs_ig_attrchg); @@ -452,12 +439,10 @@ xfs_setattr( * mix so this probably isn't worth the trouble to optimize. */ code = 0; - if (tp) { - if (mp->m_flags & XFS_MOUNT_WSYNC) - xfs_trans_set_sync(tp); + if (mp->m_flags & XFS_MOUNT_WSYNC) + xfs_trans_set_sync(tp); - code = xfs_trans_commit(tp, commit_flags); - } + code = xfs_trans_commit(tp, commit_flags); xfs_iunlock(ip, lock_flags); |