diff options
Diffstat (limited to 'fs')
-rw-r--r-- | fs/affs/affs.h | 4 | ||||
-rw-r--r-- | fs/affs/file.c | 25 | ||||
-rw-r--r-- | fs/affs/inode.c | 34 | ||||
-rw-r--r-- | fs/affs/namei.c | 6 | ||||
-rw-r--r-- | fs/affs/super.c | 18 | ||||
-rw-r--r-- | fs/bio.c | 3 | ||||
-rw-r--r-- | fs/inode.c | 5 | ||||
-rw-r--r-- | fs/locks.c | 17 | ||||
-rw-r--r-- | fs/pipe.c | 21 | ||||
-rw-r--r-- | fs/proc/task_mmu.c | 2 | ||||
-rw-r--r-- | fs/proc/task_nommu.c | 1 | ||||
-rw-r--r-- | fs/splice.c | 31 | ||||
-rw-r--r-- | fs/udf/namei.c | 145 | ||||
-rw-r--r-- | fs/udf/partition.c | 4 | ||||
-rw-r--r-- | fs/udf/super.c | 1 | ||||
-rw-r--r-- | fs/udf/udfdecl.h | 1 |
16 files changed, 239 insertions, 79 deletions
diff --git a/fs/affs/affs.h b/fs/affs/affs.h index d5bd497ab9c..223b1917093 100644 --- a/fs/affs/affs.h +++ b/fs/affs/affs.h @@ -48,7 +48,7 @@ struct affs_ext_key { * affs fs inode data in memory */ struct affs_inode_info { - u32 i_opencnt; + atomic_t i_opencnt; struct semaphore i_link_lock; /* Protects internal inode access. */ struct semaphore i_ext_lock; /* Protects internal inode access. */ #define i_hash_lock i_ext_lock @@ -170,8 +170,6 @@ extern int affs_rename(struct inode *old_dir, struct dentry *old_dentry, extern unsigned long affs_parent_ino(struct inode *dir); extern struct inode *affs_new_inode(struct inode *dir); extern int affs_notify_change(struct dentry *dentry, struct iattr *attr); -extern void affs_put_inode(struct inode *inode); -extern void affs_drop_inode(struct inode *inode); extern void affs_delete_inode(struct inode *inode); extern void affs_clear_inode(struct inode *inode); extern struct inode *affs_iget(struct super_block *sb, diff --git a/fs/affs/file.c b/fs/affs/file.c index 1a4f092f24e..6eac7bdeec9 100644 --- a/fs/affs/file.c +++ b/fs/affs/file.c @@ -48,8 +48,9 @@ affs_file_open(struct inode *inode, struct file *filp) { if (atomic_read(&filp->f_count) != 1) return 0; - pr_debug("AFFS: open(%d)\n", AFFS_I(inode)->i_opencnt); - AFFS_I(inode)->i_opencnt++; + pr_debug("AFFS: open(%lu,%d)\n", + inode->i_ino, atomic_read(&AFFS_I(inode)->i_opencnt)); + atomic_inc(&AFFS_I(inode)->i_opencnt); return 0; } @@ -58,10 +59,16 @@ affs_file_release(struct inode *inode, struct file *filp) { if (atomic_read(&filp->f_count) != 0) return 0; - pr_debug("AFFS: release(%d)\n", AFFS_I(inode)->i_opencnt); - AFFS_I(inode)->i_opencnt--; - if (!AFFS_I(inode)->i_opencnt) + pr_debug("AFFS: release(%lu, %d)\n", + inode->i_ino, atomic_read(&AFFS_I(inode)->i_opencnt)); + + if (atomic_dec_and_test(&AFFS_I(inode)->i_opencnt)) { + mutex_lock(&inode->i_mutex); + if (inode->i_size != AFFS_I(inode)->mmu_private) + affs_truncate(inode); affs_free_prealloc(inode); + mutex_unlock(&inode->i_mutex); + } return 0; } @@ -180,7 +187,7 @@ affs_get_extblock(struct inode *inode, u32 ext) /* inline the simplest case: same extended block as last time */ struct buffer_head *bh = AFFS_I(inode)->i_ext_bh; if (ext == AFFS_I(inode)->i_ext_last) - atomic_inc(&bh->b_count); + get_bh(bh); else /* we have to do more (not inlined) */ bh = affs_get_extblock_slow(inode, ext); @@ -306,7 +313,7 @@ store_ext: affs_brelse(AFFS_I(inode)->i_ext_bh); AFFS_I(inode)->i_ext_last = ext; AFFS_I(inode)->i_ext_bh = bh; - atomic_inc(&bh->b_count); + get_bh(bh); return bh; @@ -324,7 +331,6 @@ affs_get_block(struct inode *inode, sector_t block, struct buffer_head *bh_resul pr_debug("AFFS: get_block(%u, %lu)\n", (u32)inode->i_ino, (unsigned long)block); - BUG_ON(block > (sector_t)0x7fffffffUL); if (block >= AFFS_I(inode)->i_blkcnt) { @@ -827,6 +833,8 @@ affs_truncate(struct inode *inode) res = mapping->a_ops->write_begin(NULL, mapping, size, 0, 0, &page, &fsdata); if (!res) res = mapping->a_ops->write_end(NULL, mapping, size, 0, 0, page, fsdata); + else + inode->i_size = AFFS_I(inode)->mmu_private; mark_inode_dirty(inode); return; } else if (inode->i_size == AFFS_I(inode)->mmu_private) @@ -862,6 +870,7 @@ affs_truncate(struct inode *inode) blk++; } else AFFS_HEAD(ext_bh)->first_data = 0; + AFFS_HEAD(ext_bh)->block_count = cpu_to_be32(i); size = AFFS_SB(sb)->s_hashsize; if (size > blkcnt - blk + i) size = blkcnt - blk + i; diff --git a/fs/affs/inode.c b/fs/affs/inode.c index 27fe6cbe43a..a13b334a391 100644 --- a/fs/affs/inode.c +++ b/fs/affs/inode.c @@ -58,7 +58,7 @@ struct inode *affs_iget(struct super_block *sb, unsigned long ino) AFFS_I(inode)->i_extcnt = 1; AFFS_I(inode)->i_ext_last = ~1; AFFS_I(inode)->i_protect = prot; - AFFS_I(inode)->i_opencnt = 0; + atomic_set(&AFFS_I(inode)->i_opencnt, 0); AFFS_I(inode)->i_blkcnt = 0; AFFS_I(inode)->i_lc = NULL; AFFS_I(inode)->i_lc_size = 0; @@ -108,8 +108,6 @@ struct inode *affs_iget(struct super_block *sb, unsigned long ino) inode->i_mode |= S_IFDIR; } else inode->i_mode = S_IRUGO | S_IXUGO | S_IWUSR | S_IFDIR; - if (tail->link_chain) - inode->i_nlink = 2; /* Maybe it should be controlled by mount parameter? */ //inode->i_mode |= S_ISVTX; inode->i_op = &affs_dir_inode_operations; @@ -245,31 +243,12 @@ out: } void -affs_put_inode(struct inode *inode) -{ - pr_debug("AFFS: put_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink); - affs_free_prealloc(inode); -} - -void -affs_drop_inode(struct inode *inode) -{ - mutex_lock(&inode->i_mutex); - if (inode->i_size != AFFS_I(inode)->mmu_private) - affs_truncate(inode); - mutex_unlock(&inode->i_mutex); - - generic_drop_inode(inode); -} - -void affs_delete_inode(struct inode *inode) { pr_debug("AFFS: delete_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink); truncate_inode_pages(&inode->i_data, 0); inode->i_size = 0; - if (S_ISREG(inode->i_mode)) - affs_truncate(inode); + affs_truncate(inode); clear_inode(inode); affs_free_block(inode->i_sb, inode->i_ino); } @@ -277,9 +256,12 @@ affs_delete_inode(struct inode *inode) void affs_clear_inode(struct inode *inode) { - unsigned long cache_page = (unsigned long) AFFS_I(inode)->i_lc; + unsigned long cache_page; pr_debug("AFFS: clear_inode(ino=%lu, nlink=%u)\n", inode->i_ino, inode->i_nlink); + + affs_free_prealloc(inode); + cache_page = (unsigned long)AFFS_I(inode)->i_lc; if (cache_page) { pr_debug("AFFS: freeing ext cache\n"); AFFS_I(inode)->i_lc = NULL; @@ -316,7 +298,7 @@ affs_new_inode(struct inode *dir) inode->i_ino = block; inode->i_nlink = 1; inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC; - AFFS_I(inode)->i_opencnt = 0; + atomic_set(&AFFS_I(inode)->i_opencnt, 0); AFFS_I(inode)->i_blkcnt = 0; AFFS_I(inode)->i_lc = NULL; AFFS_I(inode)->i_lc_size = 0; @@ -369,12 +351,12 @@ affs_add_entry(struct inode *dir, struct inode *inode, struct dentry *dentry, s3 switch (type) { case ST_LINKFILE: case ST_LINKDIR: - inode_bh = bh; retval = -ENOSPC; block = affs_alloc_block(dir, dir->i_ino); if (!block) goto err; retval = -EIO; + inode_bh = bh; bh = affs_getzeroblk(sb, block); if (!bh) goto err; diff --git a/fs/affs/namei.c b/fs/affs/namei.c index 2218f1ee71c..cfcf1b6cf82 100644 --- a/fs/affs/namei.c +++ b/fs/affs/namei.c @@ -234,7 +234,8 @@ affs_lookup(struct inode *dir, struct dentry *dentry, struct nameidata *nd) int affs_unlink(struct inode *dir, struct dentry *dentry) { - pr_debug("AFFS: unlink(dir=%d, \"%.*s\")\n", (u32)dir->i_ino, + pr_debug("AFFS: unlink(dir=%d, %lu \"%.*s\")\n", (u32)dir->i_ino, + dentry->d_inode->i_ino, (int)dentry->d_name.len, dentry->d_name.name); return affs_remove_header(dentry); @@ -302,7 +303,8 @@ affs_mkdir(struct inode *dir, struct dentry *dentry, int mode) int affs_rmdir(struct inode *dir, struct dentry *dentry) { - pr_debug("AFFS: rmdir(dir=%u, \"%.*s\")\n", (u32)dir->i_ino, + pr_debug("AFFS: rmdir(dir=%u, %lu \"%.*s\")\n", (u32)dir->i_ino, + dentry->d_inode->i_ino, (int)dentry->d_name.len, dentry->d_name.name); return affs_remove_header(dentry); diff --git a/fs/affs/super.c b/fs/affs/super.c index 01d25d53254..d214837d5e4 100644 --- a/fs/affs/super.c +++ b/fs/affs/super.c @@ -71,12 +71,18 @@ static struct kmem_cache * affs_inode_cachep; static struct inode *affs_alloc_inode(struct super_block *sb) { - struct affs_inode_info *ei; - ei = (struct affs_inode_info *)kmem_cache_alloc(affs_inode_cachep, GFP_KERNEL); - if (!ei) + struct affs_inode_info *i; + + i = kmem_cache_alloc(affs_inode_cachep, GFP_KERNEL); + if (!i) return NULL; - ei->vfs_inode.i_version = 1; - return &ei->vfs_inode; + + i->vfs_inode.i_version = 1; + i->i_lc = NULL; + i->i_ext_bh = NULL; + i->i_pa_cnt = 0; + + return &i->vfs_inode; } static void affs_destroy_inode(struct inode *inode) @@ -114,8 +120,6 @@ static const struct super_operations affs_sops = { .alloc_inode = affs_alloc_inode, .destroy_inode = affs_destroy_inode, .write_inode = affs_write_inode, - .put_inode = affs_put_inode, - .drop_inode = affs_drop_inode, .delete_inode = affs_delete_inode, .clear_inode = affs_clear_inode, .put_super = affs_put_super, @@ -158,7 +158,7 @@ struct bio *bio_alloc_bioset(gfp_t gfp_mask, int nr_iovecs, struct bio_set *bs) bio_init(bio); if (likely(nr_iovecs)) { - unsigned long idx = 0; /* shut up gcc */ + unsigned long uninitialized_var(idx); bvl = bvec_alloc_bs(gfp_mask, nr_iovecs, &idx, bs); if (unlikely(!bvl)) { @@ -963,6 +963,7 @@ static void bio_copy_kern_endio(struct bio *bio, int err) * @data: pointer to buffer to copy * @len: length in bytes * @gfp_mask: allocation flags for bio and page allocation + * @reading: data direction is READ * * copy the kernel address into a bio suitable for io to a block * device. Returns an error pointer in case of error. diff --git a/fs/inode.c b/fs/inode.c index bf647813042..c36d9480335 100644 --- a/fs/inode.c +++ b/fs/inode.c @@ -1149,13 +1149,8 @@ static inline void iput_final(struct inode *inode) void iput(struct inode *inode) { if (inode) { - const struct super_operations *op = inode->i_sb->s_op; - BUG_ON(inode->i_state == I_CLEAR); - if (op && op->put_inode) - op->put_inode(inode); - if (atomic_dec_and_lock(&inode->i_count, &inode_lock)) iput_final(inode); } diff --git a/fs/locks.c b/fs/locks.c index 663c069b59b..0ac6b92cb0b 100644 --- a/fs/locks.c +++ b/fs/locks.c @@ -1753,6 +1753,7 @@ int fcntl_setlk(unsigned int fd, struct file *filp, unsigned int cmd, struct file_lock *file_lock = locks_alloc_lock(); struct flock flock; struct inode *inode; + struct file *f; int error; if (file_lock == NULL) @@ -1825,7 +1826,15 @@ again: * Attempt to detect a close/fcntl race and recover by * releasing the lock that was just acquired. */ - if (!error && fcheck(fd) != filp && flock.l_type != F_UNLCK) { + /* + * we need that spin_lock here - it prevents reordering between + * update of inode->i_flock and check for it done in close(). + * rcu_read_lock() wouldn't do. + */ + spin_lock(¤t->files->file_lock); + f = fcheck(fd); + spin_unlock(¤t->files->file_lock); + if (!error && f != filp && flock.l_type != F_UNLCK) { flock.l_type = F_UNLCK; goto again; } @@ -1881,6 +1890,7 @@ int fcntl_setlk64(unsigned int fd, struct file *filp, unsigned int cmd, struct file_lock *file_lock = locks_alloc_lock(); struct flock64 flock; struct inode *inode; + struct file *f; int error; if (file_lock == NULL) @@ -1953,7 +1963,10 @@ again: * Attempt to detect a close/fcntl race and recover by * releasing the lock that was just acquired. */ - if (!error && fcheck(fd) != filp && flock.l_type != F_UNLCK) { + spin_lock(¤t->files->file_lock); + f = fcheck(fd); + spin_unlock(¤t->files->file_lock); + if (!error && f != filp && flock.l_type != F_UNLCK) { flock.l_type = F_UNLCK; goto again; } diff --git a/fs/pipe.c b/fs/pipe.c index f73492b6817..ec228bc9f88 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -17,6 +17,7 @@ #include <linux/highmem.h> #include <linux/pagemap.h> #include <linux/audit.h> +#include <linux/syscalls.h> #include <asm/uaccess.h> #include <asm/ioctls.h> @@ -1076,6 +1077,26 @@ int do_pipe(int *fd) } /* + * sys_pipe() is the normal C calling standard for creating + * a pipe. It's not the way Unix traditionally does this, though. + */ +asmlinkage long __weak sys_pipe(int __user *fildes) +{ + int fd[2]; + int error; + + error = do_pipe(fd); + if (!error) { + if (copy_to_user(fildes, fd, sizeof(fd))) { + sys_close(fd[0]); + sys_close(fd[1]); + error = -EFAULT; + } + } + return error; +} + +/* * pipefs should _never_ be mounted by userland - too much of security hassle, * no real gain from having the whole whorehouse mounted. So we don't need * any operations on the root directory. However, we need a non-trivial diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index e2b8e769f51..88717c0f941 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -5,11 +5,9 @@ #include <linux/highmem.h> #include <linux/ptrace.h> #include <linux/pagemap.h> -#include <linux/ptrace.h> #include <linux/mempolicy.h> #include <linux/swap.h> #include <linux/swapops.h> -#include <linux/seq_file.h> #include <asm/elf.h> #include <asm/uaccess.h> diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c index 4b733f10845..4b4f9cc2f18 100644 --- a/fs/proc/task_nommu.c +++ b/fs/proc/task_nommu.c @@ -1,6 +1,7 @@ #include <linux/mm.h> #include <linux/file.h> +#include <linux/fdtable.h> #include <linux/mount.h> #include <linux/ptrace.h> #include <linux/seq_file.h> diff --git a/fs/splice.c b/fs/splice.c index 633f58ebfb7..78150038b58 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -811,24 +811,19 @@ generic_file_splice_write(struct pipe_inode_info *pipe, struct file *out, { struct address_space *mapping = out->f_mapping; struct inode *inode = mapping->host; - int killsuid, killpriv; + struct splice_desc sd = { + .total_len = len, + .flags = flags, + .pos = *ppos, + .u.file = out, + }; ssize_t ret; - int err = 0; - - killpriv = security_inode_need_killpriv(out->f_path.dentry); - killsuid = should_remove_suid(out->f_path.dentry); - if (unlikely(killsuid || killpriv)) { - mutex_lock(&inode->i_mutex); - if (killpriv) - err = security_inode_killpriv(out->f_path.dentry); - if (!err && killsuid) - err = __remove_suid(out->f_path.dentry, killsuid); - mutex_unlock(&inode->i_mutex); - if (err) - return err; - } - ret = splice_from_pipe(pipe, out, ppos, len, flags, pipe_to_file); + inode_double_lock(inode, pipe->inode); + ret = remove_suid(out->f_path.dentry); + if (likely(!ret)) + ret = __splice_from_pipe(pipe, &sd, pipe_to_file); + inode_double_unlock(inode, pipe->inode); if (ret > 0) { unsigned long nr_pages; @@ -840,6 +835,8 @@ generic_file_splice_write(struct pipe_inode_info *pipe, struct file *out, * sync it. */ if (unlikely((out->f_flags & O_SYNC) || IS_SYNC(inode))) { + int err; + mutex_lock(&inode->i_mutex); err = generic_osync_inode(inode, mapping, OSYNC_METADATA|OSYNC_DATA); @@ -1075,7 +1072,7 @@ long do_splice_direct(struct file *in, loff_t *ppos, struct file *out, ret = splice_direct_to_actor(in, &sd, direct_splice_actor); if (ret > 0) - *ppos = sd.pos; + *ppos += ret; return ret; } diff --git a/fs/udf/namei.c b/fs/udf/namei.c index 2b34c8ca6c8..d3231947db1 100644 --- a/fs/udf/namei.c +++ b/fs/udf/namei.c @@ -32,6 +32,7 @@ #include <linux/buffer_head.h> #include <linux/sched.h> #include <linux/crc-itu-t.h> +#include <linux/exportfs.h> static inline int udf_match(int len1, const char *name1, int len2, const char *name2) @@ -158,6 +159,8 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir, sector_t offset; struct extent_position epos = {}; struct udf_inode_info *dinfo = UDF_I(dir); + int isdotdot = dentry->d_name.len == 2 && + dentry->d_name.name[0] == '.' && dentry->d_name.name[1] == '.'; size = udf_ext0_offset(dir) + dir->i_size; f_pos = udf_ext0_offset(dir); @@ -225,6 +228,12 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir, continue; } + if ((cfi->fileCharacteristics & FID_FILE_CHAR_PARENT) && + isdotdot) { + brelse(epos.bh); + return fi; + } + if (!lfi) continue; @@ -286,9 +295,8 @@ static struct dentry *udf_lookup(struct inode *dir, struct dentry *dentry, } } unlock_kernel(); - d_add(dentry, inode); - return NULL; + return d_splice_alias(inode, dentry); } static struct fileIdentDesc *udf_add_entry(struct inode *dir, @@ -307,7 +315,7 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir, uint16_t liu; int block; kernel_lb_addr eloc; - uint32_t elen; + uint32_t elen = 0; sector_t offset; struct extent_position epos = {}; struct udf_inode_info *dinfo; @@ -398,7 +406,8 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir, } add: - if (dinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) { + /* Is there any extent whose size we need to round up? */ + if (dinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB && elen) { elen = (elen + sb->s_blocksize - 1) & ~(sb->s_blocksize - 1); if (dinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT) epos.offset -= sizeof(short_ad); @@ -1232,6 +1241,134 @@ end_rename: return retval; } +static struct dentry *udf_get_parent(struct dentry *child) +{ + struct dentry *parent; + struct inode *inode = NULL; + struct dentry dotdot; + struct fileIdentDesc cfi; + struct udf_fileident_bh fibh; + + dotdot.d_name.name = ".."; + dotdot.d_name.len = 2; + + lock_kernel(); + if (!udf_find_entry(child->d_inode, &dotdot, &fibh, &cfi)) + goto out_unlock; + + if (fibh.sbh != fibh.ebh) + brelse(fibh.ebh); + brelse(fibh.sbh); + + inode = udf_iget(child->d_inode->i_sb, + lelb_to_cpu(cfi.icb.extLocation)); + if (!inode) + goto out_unlock; + unlock_kernel(); + + parent = d_alloc_anon(inode); + if (!parent) { + iput(inode); + parent = ERR_PTR(-ENOMEM); + } + + return parent; +out_unlock: + unlock_kernel(); + return ERR_PTR(-EACCES); +} + + +static struct dentry *udf_nfs_get_inode(struct super_block *sb, u32 block, + u16 partref, __u32 generation) +{ + struct inode *inode; + struct dentry *result; + kernel_lb_addr loc; + + if (block == 0) + return ERR_PTR(-ESTALE); + + loc.logicalBlockNum = block; + loc.partitionReferenceNum = partref; + inode = udf_iget(sb, loc); + + if (inode == NULL) + return ERR_PTR(-ENOMEM); + + if (generation && inode->i_generation != generation) { + iput(inode); + return ERR_PTR(-ESTALE); + } + result = d_alloc_anon(inode); + if (!result) { + iput(inode); + return ERR_PTR(-ENOMEM); + } + return result; +} + +static struct dentry *udf_fh_to_dentry(struct super_block *sb, + struct fid *fid, int fh_len, int fh_type) +{ + if ((fh_len != 3 && fh_len != 5) || + (fh_type != FILEID_UDF_WITH_PARENT && + fh_type != FILEID_UDF_WITHOUT_PARENT)) + return NULL; + + return udf_nfs_get_inode(sb, fid->udf.block, fid->udf.partref, + fid->udf.generation); +} + +static struct dentry *udf_fh_to_parent(struct super_block *sb, + struct fid *fid, int fh_len, int fh_type) +{ + if (fh_len != 5 || fh_type != FILEID_UDF_WITH_PARENT) + return NULL; + + return udf_nfs_get_inode(sb, fid->udf.parent_block, + fid->udf.parent_partref, + fid->udf.parent_generation); +} +static int udf_encode_fh(struct dentry *de, __u32 *fh, int *lenp, + int connectable) +{ + int len = *lenp; + struct inode *inode = de->d_inode; + kernel_lb_addr location = UDF_I(inode)->i_location; + struct fid *fid = (struct fid *)fh; + int type = FILEID_UDF_WITHOUT_PARENT; + + if (len < 3 || (connectable && len < 5)) + return 255; + + *lenp = 3; + fid->udf.block = location.logicalBlockNum; + fid->udf.partref = location.partitionReferenceNum; + fid->udf.generation = inode->i_generation; + + if (connectable && !S_ISDIR(inode->i_mode)) { + spin_lock(&de->d_lock); + inode = de->d_parent->d_inode; + location = UDF_I(inode)->i_location; + fid->udf.parent_block = location.logicalBlockNum; + fid->udf.parent_partref = location.partitionReferenceNum; + fid->udf.parent_generation = inode->i_generation; + spin_unlock(&de->d_lock); + *lenp = 5; + type = FILEID_UDF_WITH_PARENT; + } + + return type; +} + +const struct export_operations udf_export_ops = { + .encode_fh = udf_encode_fh, + .fh_to_dentry = udf_fh_to_dentry, + .fh_to_parent = udf_fh_to_parent, + .get_parent = udf_get_parent, +}; + const struct inode_operations udf_dir_inode_operations = { .lookup = udf_lookup, .create = udf_create, diff --git a/fs/udf/partition.c b/fs/udf/partition.c index 63610f026ae..96dfd207c3d 100644 --- a/fs/udf/partition.c +++ b/fs/udf/partition.c @@ -27,8 +27,8 @@ #include <linux/slab.h> #include <linux/buffer_head.h> -inline uint32_t udf_get_pblock(struct super_block *sb, uint32_t block, - uint16_t partition, uint32_t offset) +uint32_t udf_get_pblock(struct super_block *sb, uint32_t block, + uint16_t partition, uint32_t offset) { struct udf_sb_info *sbi = UDF_SB(sb); struct udf_part_map *map; diff --git a/fs/udf/super.c b/fs/udf/super.c index 9fb18a340fc..7a5f69be6ac 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -1933,6 +1933,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) /* Fill in the rest of the superblock */ sb->s_op = &udf_sb_ops; + sb->s_export_op = &udf_export_ops; sb->dq_op = NULL; sb->s_dirt = 0; sb->s_magic = UDF_SUPER_MAGIC; diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h index f3f45d02927..8fa9c2d7091 100644 --- a/fs/udf/udfdecl.h +++ b/fs/udf/udfdecl.h @@ -73,6 +73,7 @@ struct task_struct; struct buffer_head; struct super_block; +extern const struct export_operations udf_export_ops; extern const struct inode_operations udf_dir_inode_operations; extern const struct file_operations udf_dir_operations; extern const struct inode_operations udf_file_inode_operations; |