aboutsummaryrefslogtreecommitdiff
path: root/fs
diff options
context:
space:
mode:
Diffstat (limited to 'fs')
-rw-r--r--fs/afs/netdevices.c3
-rw-r--r--fs/ext2/inode.c44
-rw-r--r--fs/ext4/extents.c2
-rw-r--r--fs/ext4/inode.c8
-rw-r--r--fs/ext4/super.c9
-rw-r--r--fs/hfs/inode.c4
-rw-r--r--fs/hfs/mdb.c1
-rw-r--r--fs/jbd/revoke.c24
-rw-r--r--fs/nilfs2/bmap.c5
-rw-r--r--fs/nilfs2/nilfs.h5
-rw-r--r--fs/nilfs2/recovery.c20
-rw-r--r--fs/nilfs2/sufile.c290
-rw-r--r--fs/nilfs2/sufile.h79
-rw-r--r--fs/nilfs2/super.c7
-rw-r--r--fs/nilfs2/the_nilfs.c4
-rw-r--r--fs/xfs/linux-2.6/xfs_aops.c38
-rw-r--r--fs/xfs/linux-2.6/xfs_aops.h1
-rw-r--r--fs/xfs/linux-2.6/xfs_buf.c9
-rw-r--r--fs/xfs/linux-2.6/xfs_fs_subr.c14
-rw-r--r--fs/xfs/linux-2.6/xfs_lrw.c18
-rw-r--r--fs/xfs/linux-2.6/xfs_sync.c78
-rw-r--r--fs/xfs/linux-2.6/xfs_sync.h9
-rw-r--r--fs/xfs/xfs_iget.c23
-rw-r--r--fs/xfs/xfs_iomap.c61
-rw-r--r--fs/xfs/xfs_iomap.h3
-rw-r--r--fs/xfs/xfs_log.c78
-rw-r--r--fs/xfs/xfs_mount.h2
-rw-r--r--fs/xfs/xfs_vnodeops.c7
28 files changed, 449 insertions, 397 deletions
diff --git a/fs/afs/netdevices.c b/fs/afs/netdevices.c
index 49f18942306..7ad36506c25 100644
--- a/fs/afs/netdevices.c
+++ b/fs/afs/netdevices.c
@@ -20,8 +20,7 @@ int afs_get_MAC_address(u8 *mac, size_t maclen)
struct net_device *dev;
int ret = -ENODEV;
- if (maclen != ETH_ALEN)
- BUG();
+ BUG_ON(maclen != ETH_ALEN);
rtnl_lock();
dev = __dev_getfirstbyhwtype(&init_net, ARPHRD_ETHER);
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index b43b9556366..acf67883110 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -590,9 +590,8 @@ static int ext2_get_blocks(struct inode *inode,
if (depth == 0)
return (err);
-reread:
- partial = ext2_get_branch(inode, depth, offsets, chain, &err);
+ partial = ext2_get_branch(inode, depth, offsets, chain, &err);
/* Simplest case - block found, no allocation needed */
if (!partial) {
first_block = le32_to_cpu(chain[depth - 1].key);
@@ -602,15 +601,16 @@ reread:
while (count < maxblocks && count <= blocks_to_boundary) {
ext2_fsblk_t blk;
- if (!verify_chain(chain, partial)) {
+ if (!verify_chain(chain, chain + depth - 1)) {
/*
* Indirect block might be removed by
* truncate while we were reading it.
* Handling of that case: forget what we've
* got now, go to reread.
*/
+ err = -EAGAIN;
count = 0;
- goto changed;
+ break;
}
blk = le32_to_cpu(*(chain[depth-1].p + count));
if (blk == first_block + count)
@@ -618,7 +618,8 @@ reread:
else
break;
}
- goto got_it;
+ if (err != -EAGAIN)
+ goto got_it;
}
/* Next simple case - plain lookup or failed read of indirect block */
@@ -626,6 +627,33 @@ reread:
goto cleanup;
mutex_lock(&ei->truncate_mutex);
+ /*
+ * If the indirect block is missing while we are reading
+ * the chain(ext3_get_branch() returns -EAGAIN err), or
+ * if the chain has been changed after we grab the semaphore,
+ * (either because another process truncated this branch, or
+ * another get_block allocated this branch) re-grab the chain to see if
+ * the request block has been allocated or not.
+ *
+ * Since we already block the truncate/other get_block
+ * at this point, we will have the current copy of the chain when we
+ * splice the branch into the tree.
+ */
+ if (err == -EAGAIN || !verify_chain(chain, partial)) {
+ while (partial > chain) {
+ brelse(partial->bh);
+ partial--;
+ }
+ partial = ext2_get_branch(inode, depth, offsets, chain, &err);
+ if (!partial) {
+ count++;
+ mutex_unlock(&ei->truncate_mutex);
+ if (err)
+ goto cleanup;
+ clear_buffer_new(bh_result);
+ goto got_it;
+ }
+ }
/*
* Okay, we need to do block allocation. Lazily initialize the block
@@ -683,12 +711,6 @@ cleanup:
partial--;
}
return err;
-changed:
- while (partial > chain) {
- brelse(partial->bh);
- partial--;
- }
- goto reread;
}
int ext2_get_block(struct inode *inode, sector_t iblock, struct buffer_head *bh_result, int create)
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index ac77d8b8251..6132353dcf6 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -342,7 +342,7 @@ static int ext4_valid_extent_idx(struct inode *inode,
ext4_fsblk_t block = idx_pblock(ext_idx);
struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es;
if (unlikely(block < le32_to_cpu(es->s_first_data_block) ||
- (block > ext4_blocks_count(es))))
+ (block >= ext4_blocks_count(es))))
return 0;
else
return 1;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index a2e7952bc5f..c6bd6ced3bb 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -372,16 +372,16 @@ static int ext4_block_to_path(struct inode *inode,
}
static int __ext4_check_blockref(const char *function, struct inode *inode,
- unsigned int *p, unsigned int max) {
+ __le32 *p, unsigned int max) {
unsigned int maxblocks = ext4_blocks_count(EXT4_SB(inode->i_sb)->s_es);
- unsigned int *bref = p;
+ __le32 *bref = p;
while (bref < p+max) {
- if (unlikely(*bref >= maxblocks)) {
+ if (unlikely(le32_to_cpu(*bref) >= maxblocks)) {
ext4_error(inode->i_sb, function,
"block reference %u >= max (%u) "
"in inode #%lu, offset=%d",
- *bref, maxblocks,
+ le32_to_cpu(*bref), maxblocks,
inode->i_ino, (int)(bref-p));
return -EIO;
}
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 9987bba99db..2958f4e6f22 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2508,6 +2508,15 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
if (EXT4_BLOCKS_PER_GROUP(sb) == 0)
goto cantfind_ext4;
+ /* check blocks count against device size */
+ blocks_count = sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits;
+ if (blocks_count && ext4_blocks_count(es) > blocks_count) {
+ printk(KERN_WARNING "EXT4-fs: bad geometry: block count %llu "
+ "exceeds size of device (%llu blocks)\n",
+ ext4_blocks_count(es), blocks_count);
+ goto failed_mount;
+ }
+
/*
* It makes no sense for the first data block to be beyond the end
* of the filesystem.
diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
index 9435dda8f1e..a1cbff2b4d9 100644
--- a/fs/hfs/inode.c
+++ b/fs/hfs/inode.c
@@ -70,6 +70,10 @@ static int hfs_releasepage(struct page *page, gfp_t mask)
BUG();
return 0;
}
+
+ if (!tree)
+ return 0;
+
if (tree->node_size >= PAGE_CACHE_SIZE) {
nidx = page->index >> (tree->node_size_shift - PAGE_CACHE_SHIFT);
spin_lock(&tree->hash_lock);
diff --git a/fs/hfs/mdb.c b/fs/hfs/mdb.c
index 36ca2e1a4fa..7b6165f25fb 100644
--- a/fs/hfs/mdb.c
+++ b/fs/hfs/mdb.c
@@ -349,6 +349,7 @@ void hfs_mdb_put(struct super_block *sb)
if (HFS_SB(sb)->nls_disk)
unload_nls(HFS_SB(sb)->nls_disk);
+ free_pages((unsigned long)HFS_SB(sb)->bitmap, PAGE_SIZE < 8192 ? 1 : 0);
kfree(HFS_SB(sb));
sb->s_fs_info = NULL;
}
diff --git a/fs/jbd/revoke.c b/fs/jbd/revoke.c
index c7bd649bbbd..3e9afc2a91d 100644
--- a/fs/jbd/revoke.c
+++ b/fs/jbd/revoke.c
@@ -55,6 +55,25 @@
* need do nothing.
* RevokeValid set, Revoked set:
* buffer has been revoked.
+ *
+ * Locking rules:
+ * We keep two hash tables of revoke records. One hashtable belongs to the
+ * running transaction (is pointed to by journal->j_revoke), the other one
+ * belongs to the committing transaction. Accesses to the second hash table
+ * happen only from the kjournald and no other thread touches this table. Also
+ * journal_switch_revoke_table() which switches which hashtable belongs to the
+ * running and which to the committing transaction is called only from
+ * kjournald. Therefore we need no locks when accessing the hashtable belonging
+ * to the committing transaction.
+ *
+ * All users operating on the hash table belonging to the running transaction
+ * have a handle to the transaction. Therefore they are safe from kjournald
+ * switching hash tables under them. For operations on the lists of entries in
+ * the hash table j_revoke_lock is used.
+ *
+ * Finally, also replay code uses the hash tables but at this moment noone else
+ * can touch them (filesystem isn't mounted yet) and hence no locking is
+ * needed.
*/
#ifndef __KERNEL__
@@ -402,8 +421,6 @@ int journal_revoke(handle_t *handle, unsigned long blocknr,
* the second time we would still have a pending revoke to cancel. So,
* do not trust the Revoked bit on buffers unless RevokeValid is also
* set.
- *
- * The caller must have the journal locked.
*/
int journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
{
@@ -481,10 +498,7 @@ void journal_switch_revoke_table(journal_t *journal)
/*
* Write revoke records to the journal for all entries in the current
* revoke hash, deleting the entries as we go.
- *
- * Called with the journal lock held.
*/
-
void journal_write_revoke_records(journal_t *journal,
transaction_t *transaction)
{
diff --git a/fs/nilfs2/bmap.c b/fs/nilfs2/bmap.c
index 24638e059bf..064279e33bb 100644
--- a/fs/nilfs2/bmap.c
+++ b/fs/nilfs2/bmap.c
@@ -688,6 +688,8 @@ static const struct nilfs_bmap_ptr_operations nilfs_bmap_ptr_ops_gc = {
.bpop_translate = NULL,
};
+static struct lock_class_key nilfs_bmap_dat_lock_key;
+
/**
* nilfs_bmap_read - read a bmap from an inode
* @bmap: bmap
@@ -715,6 +717,7 @@ int nilfs_bmap_read(struct nilfs_bmap *bmap, struct nilfs_inode *raw_inode)
bmap->b_pops = &nilfs_bmap_ptr_ops_p;
bmap->b_last_allocated_key = 0; /* XXX: use macro */
bmap->b_last_allocated_ptr = NILFS_BMAP_NEW_PTR_INIT;
+ lockdep_set_class(&bmap->b_sem, &nilfs_bmap_dat_lock_key);
break;
case NILFS_CPFILE_INO:
case NILFS_SUFILE_INO:
@@ -772,6 +775,7 @@ void nilfs_bmap_init_gcdat(struct nilfs_bmap *gcbmap, struct nilfs_bmap *bmap)
{
memcpy(gcbmap, bmap, sizeof(union nilfs_bmap_union));
init_rwsem(&gcbmap->b_sem);
+ lockdep_set_class(&bmap->b_sem, &nilfs_bmap_dat_lock_key);
gcbmap->b_inode = &NILFS_BMAP_I(gcbmap)->vfs_inode;
}
@@ -779,5 +783,6 @@ void nilfs_bmap_commit_gcdat(struct nilfs_bmap *gcbmap, struct nilfs_bmap *bmap)
{
memcpy(bmap, gcbmap, sizeof(union nilfs_bmap_union));
init_rwsem(&bmap->b_sem);
+ lockdep_set_class(&bmap->b_sem, &nilfs_bmap_dat_lock_key);
bmap->b_inode = &NILFS_BMAP_I(bmap)->vfs_inode;
}
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h
index 7558c977db0..3d0c18a16db 100644
--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -35,11 +35,6 @@
#include "bmap_union.h"
/*
- * NILFS filesystem version
- */
-#define NILFS_VERSION "2.0.5"
-
-/*
* nilfs inode data in memory
*/
struct nilfs_inode_info {
diff --git a/fs/nilfs2/recovery.c b/fs/nilfs2/recovery.c
index 6ade0963fc1..4fc081e47d7 100644
--- a/fs/nilfs2/recovery.c
+++ b/fs/nilfs2/recovery.c
@@ -413,7 +413,6 @@ static int nilfs_prepare_segment_for_recovery(struct the_nilfs *nilfs,
struct nilfs_segment_entry *ent, *n;
struct inode *sufile = nilfs->ns_sufile;
__u64 segnum[4];
- time_t mtime;
int err;
int i;
@@ -442,24 +441,13 @@ static int nilfs_prepare_segment_for_recovery(struct the_nilfs *nilfs,
* Collecting segments written after the latest super root.
* These are marked dirty to avoid being reallocated in the next write.
*/
- mtime = get_seconds();
list_for_each_entry_safe(ent, n, head, list) {
- if (ent->segnum == segnum[0]) {
- list_del(&ent->list);
- nilfs_free_segment_entry(ent);
- continue;
- }
- err = nilfs_open_segment_entry(ent, sufile);
- if (unlikely(err))
- goto failed;
- if (!nilfs_segment_usage_dirty(ent->raw_su)) {
- /* make the segment garbage */
- ent->raw_su->su_nblocks = cpu_to_le32(0);
- ent->raw_su->su_lastmod = cpu_to_le32(mtime);
- nilfs_segment_usage_set_dirty(ent->raw_su);
+ if (ent->segnum != segnum[0]) {
+ err = nilfs_sufile_scrap(sufile, ent->segnum);
+ if (unlikely(err))
+ goto failed;
}
list_del(&ent->list);
- nilfs_close_segment_entry(ent, sufile);
nilfs_free_segment_entry(ent);
}
diff --git a/fs/nilfs2/sufile.c b/fs/nilfs2/sufile.c
index c774cf397e2..98e68677f04 100644
--- a/fs/nilfs2/sufile.c
+++ b/fs/nilfs2/sufile.c
@@ -93,6 +93,52 @@ nilfs_sufile_get_segment_usage_block(struct inode *sufile, __u64 segnum,
create, NULL, bhp);
}
+static void nilfs_sufile_mod_counter(struct buffer_head *header_bh,
+ u64 ncleanadd, u64 ndirtyadd)
+{
+ struct nilfs_sufile_header *header;
+ void *kaddr;
+
+ kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
+ header = kaddr + bh_offset(header_bh);
+ le64_add_cpu(&header->sh_ncleansegs, ncleanadd);
+ le64_add_cpu(&header->sh_ndirtysegs, ndirtyadd);
+ kunmap_atomic(kaddr, KM_USER0);
+
+ nilfs_mdt_mark_buffer_dirty(header_bh);
+}
+
+int nilfs_sufile_update(struct inode *sufile, __u64 segnum, int create,
+ void (*dofunc)(struct inode *, __u64,
+ struct buffer_head *,
+ struct buffer_head *))
+{
+ struct buffer_head *header_bh, *bh;
+ int ret;
+
+ if (unlikely(segnum >= nilfs_sufile_get_nsegments(sufile))) {
+ printk(KERN_WARNING "%s: invalid segment number: %llu\n",
+ __func__, (unsigned long long)segnum);
+ return -EINVAL;
+ }
+ down_write(&NILFS_MDT(sufile)->mi_sem);
+
+ ret = nilfs_sufile_get_header_block(sufile, &header_bh);
+ if (ret < 0)
+ goto out_sem;
+
+ ret = nilfs_sufile_get_segment_usage_block(sufile, segnum, create, &bh);
+ if (!ret) {
+ dofunc(sufile, segnum, header_bh, bh);
+ brelse(bh);
+ }
+ brelse(header_bh);
+
+ out_sem:
+ up_write(&NILFS_MDT(sufile)->mi_sem);
+ return ret;
+}
+
/**
* nilfs_sufile_alloc - allocate a segment
* @sufile: inode of segment usage file
@@ -113,7 +159,6 @@ nilfs_sufile_get_segment_usage_block(struct inode *sufile, __u64 segnum,
int nilfs_sufile_alloc(struct inode *sufile, __u64 *segnump)
{
struct buffer_head *header_bh, *su_bh;
- struct the_nilfs *nilfs;
struct nilfs_sufile_header *header;
struct nilfs_segment_usage *su;
size_t susz = NILFS_MDT(sufile)->mi_entry_size;
@@ -124,8 +169,6 @@ int nilfs_sufile_alloc(struct inode *sufile, __u64 *segnump)
down_write(&NILFS_MDT(sufile)->mi_sem);
- nilfs = NILFS_MDT(sufile)->mi_nilfs;
-
ret = nilfs_sufile_get_header_block(sufile, &header_bh);
if (ret < 0)
goto out_sem;
@@ -192,165 +235,84 @@ int nilfs_sufile_alloc(struct inode *sufile, __u64 *segnump)
return ret;
}
-/**
- * nilfs_sufile_cancel_free -
- * @sufile: inode of segment usage file
- * @segnum: segment number
- *
- * Description:
- *
- * Return Value: On success, 0 is returned. On error, one of the following
- * negative error codes is returned.
- *
- * %-EIO - I/O error.
- *
- * %-ENOMEM - Insufficient amount of memory available.
- */
-int nilfs_sufile_cancel_free(struct inode *sufile, __u64 segnum)
+void nilfs_sufile_do_cancel_free(struct inode *sufile, __u64 segnum,
+ struct buffer_head *header_bh,
+ struct buffer_head *su_bh)
{
- struct buffer_head *header_bh, *su_bh;
- struct the_nilfs *nilfs;
- struct nilfs_sufile_header *header;
struct nilfs_segment_usage *su;
void *kaddr;
- int ret;
-
- down_write(&NILFS_MDT(sufile)->mi_sem);
-
- nilfs = NILFS_MDT(sufile)->mi_nilfs;
-
- ret = nilfs_sufile_get_header_block(sufile, &header_bh);
- if (ret < 0)
- goto out_sem;
-
- ret = nilfs_sufile_get_segment_usage_block(sufile, segnum, 0, &su_bh);
- if (ret < 0)
- goto out_header;
kaddr = kmap_atomic(su_bh->b_page, KM_USER0);
- su = nilfs_sufile_block_get_segment_usage(
- sufile, segnum, su_bh, kaddr);
+ su = nilfs_sufile_block_get_segment_usage(sufile, segnum, su_bh, kaddr);
if (unlikely(!nilfs_segment_usage_clean(su))) {
printk(KERN_WARNING "%s: segment %llu must be clean\n",
__func__, (unsigned long long)segnum);
kunmap_atomic(kaddr, KM_USER0);
- goto out_su_bh;
+ return;
}
nilfs_segment_usage_set_dirty(su);
kunmap_atomic(kaddr, KM_USER0);
- kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
- header = nilfs_sufile_block_get_header(sufile, header_bh, kaddr);
- le64_add_cpu(&header->sh_ncleansegs, -1);
- le64_add_cpu(&header->sh_ndirtysegs, 1);
- kunmap_atomic(kaddr, KM_USER0);
-
- nilfs_mdt_mark_buffer_dirty(header_bh);
+ nilfs_sufile_mod_counter(header_bh, -1, 1);
nilfs_mdt_mark_buffer_dirty(su_bh);
nilfs_mdt_mark_dirty(sufile);
-
- out_su_bh:
- brelse(su_bh);
- out_header:
- brelse(header_bh);
- out_sem:
- up_write(&NILFS_MDT(sufile)->mi_sem);
- return ret;
}
-/**
- * nilfs_sufile_freev - free segments
- * @sufile: inode of segment usage file
- * @segnum: array of segment numbers
- * @nsegs: number of segments
- *
- * Description: nilfs_sufile_freev() frees segments specified by @segnum and
- * @nsegs, which must have been returned by a previous call to
- * nilfs_sufile_alloc().
- *
- * Return Value: On success, 0 is returned. On error, one of the following
- * negative error codes is returned.
- *
- * %-EIO - I/O error.
- *
- * %-ENOMEM - Insufficient amount of memory available.
- */
-#define NILFS_SUFILE_FREEV_PREALLOC 16
-int nilfs_sufile_freev(struct inode *sufile, __u64 *segnum, size_t nsegs)
+void nilfs_sufile_do_scrap(struct inode *sufile, __u64 segnum,
+ struct buffer_head *header_bh,
+ struct buffer_head *su_bh)
{
- struct buffer_head *header_bh, **su_bh,
- *su_bh_prealloc[NILFS_SUFILE_FREEV_PREALLOC];
- struct the_nilfs *nilfs;
- struct nilfs_sufile_header *header;
struct nilfs_segment_usage *su;
void *kaddr;
- int ret, i;
+ int clean, dirty;
- down_write(&NILFS_MDT(sufile)->mi_sem);
-
- nilfs = NILFS_MDT(sufile)->mi_nilfs;
-
- /* prepare resources */
- if (nsegs <= NILFS_SUFILE_FREEV_PREALLOC)
- su_bh = su_bh_prealloc;
- else {
- su_bh = kmalloc(sizeof(*su_bh) * nsegs, GFP_NOFS);
- if (su_bh == NULL) {
- ret = -ENOMEM;
- goto out_sem;
- }
- }
-
- ret = nilfs_sufile_get_header_block(sufile, &header_bh);
- if (ret < 0)
- goto out_su_bh;
- for (i = 0; i < nsegs; i++) {
- ret = nilfs_sufile_get_segment_usage_block(sufile, segnum[i],
- 0, &su_bh[i]);
- if (ret < 0)
- goto out_bh;
- }
-
- /* free segments */
- for (i = 0; i < nsegs; i++) {
- kaddr = kmap_atomic(su_bh[i]->b_page, KM_USER0);
- su = nilfs_sufile_block_get_segment_usage(
- sufile, segnum[i], su_bh[i], kaddr);
- WARN_ON(nilfs_segment_usage_error(su));
- nilfs_segment_usage_set_clean(su);
+ kaddr = kmap_atomic(su_bh->b_page, KM_USER0);
+ su = nilfs_sufile_block_get_segment_usage(sufile, segnum, su_bh, kaddr);
+ if (su->su_flags == cpu_to_le32(1UL << NILFS_SEGMENT_USAGE_DIRTY) &&
+ su->su_nblocks == cpu_to_le32(0)) {
kunmap_atomic(kaddr, KM_USER0);
- nilfs_mdt_mark_buffer_dirty(su_bh[i]);
+ return;
}
- kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
- header = nilfs_sufile_block_get_header(sufile, header_bh, kaddr);
- le64_add_cpu(&header->sh_ncleansegs, nsegs);
- le64_add_cpu(&header->sh_ndirtysegs, -(u64)nsegs);
+ clean = nilfs_segment_usage_clean(su);
+ dirty = nilfs_segment_usage_dirty(su);
+
+ /* make the segment garbage */
+ su->su_lastmod = cpu_to_le64(0);
+ su->su_nblocks = cpu_to_le32(0);
+ su->su_flags = cpu_to_le32(1UL << NILFS_SEGMENT_USAGE_DIRTY);
kunmap_atomic(kaddr, KM_USER0);
- nilfs_mdt_mark_buffer_dirty(header_bh);
+
+ nilfs_sufile_mod_counter(header_bh, clean ? (u64)-1 : 0, dirty ? 0 : 1);
+ nilfs_mdt_mark_buffer_dirty(su_bh);
nilfs_mdt_mark_dirty(sufile);
+}
- out_bh:
- for (i--; i >= 0; i--)
- brelse(su_bh[i]);
- brelse(header_bh);
+void nilfs_sufile_do_free(struct inode *sufile, __u64 segnum,
+ struct buffer_head *header_bh,
+ struct buffer_head *su_bh)
+{
+ struct nilfs_segment_usage *su;
+ void *kaddr;
+ int sudirty;
- out_su_bh:
- if (su_bh != su_bh_prealloc)
- kfree(su_bh);
+ kaddr = kmap_atomic(su_bh->b_page, KM_USER0);
+ su = nilfs_sufile_block_get_segment_usage(sufile, segnum, su_bh, kaddr);
+ if (nilfs_segment_usage_clean(su)) {
+ printk(KERN_WARNING "%s: segment %llu is already clean\n",
+ __func__, (unsigned long long)segnum);
+ kunmap_atomic(kaddr, KM_USER0);
+ return;
+ }
+ WARN_ON(nilfs_segment_usage_error(su));
+ WARN_ON(!nilfs_segment_usage_dirty(su));
- out_sem:
- up_write(&NILFS_MDT(sufile)->mi_sem);
- return ret;
-}
+ sudirty = nilfs_segment_usage_dirty(su);
+ nilfs_segment_usage_set_clean(su);
+ kunmap_atomic(kaddr, KM_USER0);
+ nilfs_mdt_mark_buffer_dirty(su_bh);
-/**
- * nilfs_sufile_free -
- * @sufile:
- * @segnum:
- */
-int nilfs_sufile_free(struct inode *sufile, __u64 segnum)
-{
- return nilfs_sufile_freev(sufile, &segnum, 1);
+ nilfs_sufile_mod_counter(header_bh, 1, sudirty ? (u64)-1 : 0);
+ nilfs_mdt_mark_dirty(sufile);
}
/**
@@ -500,72 +462,28 @@ int nilfs_sufile_get_ncleansegs(struct inode *sufile, unsigned long *nsegsp)
return ret;
}
-/**
- * nilfs_sufile_set_error - mark a segment as erroneous
- * @sufile: inode of segment usage file
- * @segnum: segment number
- *
- * Description: nilfs_sufile_set_error() marks the segment specified by
- * @segnum as erroneous. The error segment will never be used again.
- *
- * Return Value: On success, 0 is returned. On error, one of the following
- * negative error codes is returned.
- *
- * %-EIO - I/O error.
- *
- * %-ENOMEM - Insufficient amount of memory available.
- *
- * %-EINVAL - Invalid segment usage number.
- */
-int nilfs_sufile_set_error(struct inode *sufile, __u64 segnum)
+void nilfs_sufile_do_set_error(struct inode *sufile, __u64 segnum,
+ struct buffer_head *header_bh,
+ struct buffer_head *su_bh)
{
- struct buffer_head *header_bh, *su_bh;
struct nilfs_segment_usage *su;
- struct nilfs_sufile_header *header;
void *kaddr;
- int ret;
-
- if (unlikely(segnum >= nilfs_sufile_get_nsegments(sufile))) {
- printk(KERN_WARNING "%s: invalid segment number: %llu\n",
- __func__, (unsigned long long)segnum);
- return -EINVAL;
- }
- down_write(&NILFS_MDT(sufile)->mi_sem);
-
- ret = nilfs_sufile_get_header_block(sufile, &header_bh);
- if (ret < 0)
- goto out_sem;
- ret = nilfs_sufile_get_segment_usage_block(sufile, segnum, 0, &su_bh);
- if (ret < 0)
- goto out_header;
+ int suclean;
kaddr = kmap_atomic(su_bh->b_page, KM_USER0);
su = nilfs_sufile_block_get_segment_usage(sufile, segnum, su_bh, kaddr);
if (nilfs_segment_usage_error(su)) {
kunmap_atomic(kaddr, KM_USER0);
- brelse(su_bh);
- goto out_header;
+ return;
}
-
+ suclean = nilfs_segment_usage_clean(su);
nilfs_segment_usage_set_error(su);
kunmap_atomic(kaddr, KM_USER0);
- brelse(su_bh);
- kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
- header = nilfs_sufile_block_get_header(sufile, header_bh, kaddr);
- le64_add_cpu(&header->sh_ndirtysegs, -1);
- kunmap_atomic(kaddr, KM_USER0);
- nilfs_mdt_mark_buffer_dirty(header_bh);
+ if (suclean)
+ nilfs_sufile_mod_counter(header_bh, -1, 0);
nilfs_mdt_mark_buffer_dirty(su_bh);
nilfs_mdt_mark_dirty(sufile);
- brelse(su_bh);
-
- out_header:
- brelse(header_bh);
-
- out_sem:
- up_write(&NILFS_MDT(sufile)->mi_sem);
- return ret;
}
/**
@@ -625,7 +543,7 @@ ssize_t nilfs_sufile_get_suinfo(struct inode *sufile, __u64 segnum,
si[i + j].sui_nblocks = le32_to_cpu(su->su_nblocks);
si[i + j].sui_flags = le32_to_cpu(su->su_flags) &
~(1UL << NILFS_SEGMENT_USAGE_ACTIVE);
- if (nilfs_segment_is_active(nilfs, segnum + i + j))
+ if (nilfs_segment_is_active(nilfs, segnum + j))
si[i + j].sui_flags |=
(1UL << NILFS_SEGMENT_USAGE_ACTIVE);
}
diff --git a/fs/nilfs2/sufile.h b/fs/nilfs2/sufile.h
index d595f33a768..a2e2efd4ade 100644
--- a/fs/nilfs2/sufile.h
+++ b/fs/nilfs2/sufile.h
@@ -36,9 +36,6 @@ static inline unsigned long nilfs_sufile_get_nsegments(struct inode *sufile)
}
int nilfs_sufile_alloc(struct inode *, __u64 *);
-int nilfs_sufile_cancel_free(struct inode *, __u64);
-int nilfs_sufile_freev(struct inode *, __u64 *, size_t);
-int nilfs_sufile_free(struct inode *, __u64);
int nilfs_sufile_get_segment_usage(struct inode *, __u64,
struct nilfs_segment_usage **,
struct buffer_head **);
@@ -46,9 +43,83 @@ void nilfs_sufile_put_segment_usage(struct inode *, __u64,
struct buffer_head *);
int nilfs_sufile_get_stat(struct inode *, struct nilfs_sustat *);
int nilfs_sufile_get_ncleansegs(struct inode *, unsigned long *);
-int nilfs_sufile_set_error(struct inode *, __u64);
ssize_t nilfs_sufile_get_suinfo(struct inode *, __u64, struct nilfs_suinfo *,
size_t);
+int nilfs_sufile_update(struct inode *, __u64, int,
+ void (*dofunc)(struct inode *, __u64,
+ struct buffer_head *,
+ struct buffer_head *));
+void nilfs_sufile_do_cancel_free(struct inode *, __u64, struct buffer_head *,
+ struct buffer_head *);
+void nilfs_sufile_do_scrap(struct inode *, __u64, struct buffer_head *,
+ struct buffer_head *);
+void nilfs_sufile_do_free(struct inode *, __u64, struct buffer_head *,
+ struct buffer_head *);
+void nilfs_sufile_do_set_error(struct inode *, __u64, struct buffer_head *,
+ struct buffer_head *);
+
+/**
+ * nilfs_sufile_cancel_free -
+ * @sufile: inode of segment usage file
+ * @segnum: segment number
+ *
+ * Description:
+ *
+ * Return Value: On success, 0 is returned. On error, one of the following
+ * negative error codes is returned.
+ *
+ * %-EIO - I/O error.
+ *
+ * %-ENOMEM - Insufficient amount of memory available.
+ */
+static inline int nilfs_sufile_cancel_free(struct inode *sufile, __u64 segnum)
+{
+ return nilfs_sufile_update(sufile, segnum, 0,
+ nilfs_sufile_do_cancel_free);
+}
+
+/**
+ * nilfs_sufile_scrap - make a segment garbage
+ * @sufile: inode of segment usage file
+ * @segnum: segment number to be freed
+ */
+static inline int nilfs_sufile_scrap(struct inode *sufile, __u64 segnum)
+{
+ return nilfs_sufile_update(sufile, segnum, 1, nilfs_sufile_do_scrap);
+}
+
+/**
+ * nilfs_sufile_free - free segment
+ * @sufile: inode of segment usage file
+ * @segnum: segment number to be freed
+ */
+static inline int nilfs_sufile_free(struct inode *sufile, __u64 segnum)
+{
+ return nilfs_sufile_update(sufile, segnum, 0, nilfs_sufile_do_free);
+}
+
+/**
+ * nilfs_sufile_set_error - mark a segment as erroneous
+ * @sufile: inode of segment usage file
+ * @segnum: segment number
+ *
+ * Description: nilfs_sufile_set_error() marks the segment specified by
+ * @segnum as erroneous. The error segment will never be used again.
+ *
+ * Return Value: On success, 0 is returned. On error, one of the following
+ * negative error codes is returned.
+ *
+ * %-EIO - I/O error.
+ *
+ * %-ENOMEM - Insufficient amount of memory available.
+ *
+ * %-EINVAL - Invalid segment usage number.
+ */
+static inline int nilfs_sufile_set_error(struct inode *sufile, __u64 segnum)
+{
+ return nilfs_sufile_update(sufile, segnum, 0,
+ nilfs_sufile_do_set_error);
+}
#endif /* _NILFS_SUFILE_H */
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index e117e1ea9bf..6989b03e97a 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -63,7 +63,6 @@
MODULE_AUTHOR("NTT Corp.");
MODULE_DESCRIPTION("A New Implementation of the Log-structured Filesystem "
"(NILFS)");
-MODULE_VERSION(NILFS_VERSION);
MODULE_LICENSE("GPL");
static int nilfs_remount(struct super_block *sb, int *flags, char *data);
@@ -476,11 +475,12 @@ static int nilfs_statfs(struct dentry *dentry, struct kstatfs *buf)
{
struct super_block *sb = dentry->d_sb;
struct nilfs_sb_info *sbi = NILFS_SB(sb);
+ struct the_nilfs *nilfs = sbi->s_nilfs;
+ u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
unsigned long long blocks;
unsigned long overhead;
unsigned long nrsvblocks;
sector_t nfreeblocks;
- struct the_nilfs *nilfs = sbi->s_nilfs;
int err;
/*
@@ -514,6 +514,9 @@ static int nilfs_statfs(struct dentry *dentry, struct kstatfs *buf)
buf->f_files = atomic_read(&sbi->s_inodes_count);
buf->f_ffree = 0; /* nilfs_count_free_inodes(sb); */
buf->f_namelen = NILFS_NAME_LEN;
+ buf->f_fsid.val[0] = (u32)id;
+ buf->f_fsid.val[1] = (u32)(id >> 32);
+
return 0;
}
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index 33400cf0bbe..7f65b3be4aa 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -115,6 +115,7 @@ void put_nilfs(struct the_nilfs *nilfs)
static int nilfs_load_super_root(struct the_nilfs *nilfs,
struct nilfs_sb_info *sbi, sector_t sr_block)
{
+ static struct lock_class_key dat_lock_key;
struct buffer_head *bh_sr;
struct nilfs_super_root *raw_sr;
struct nilfs_super_block **sbp = nilfs->ns_sbp;
@@ -163,6 +164,9 @@ static int nilfs_load_super_root(struct the_nilfs *nilfs,
if (unlikely(err))
goto failed_sufile;
+ lockdep_set_class(&NILFS_MDT(nilfs->ns_dat)->mi_sem, &dat_lock_key);
+ lockdep_set_class(&NILFS_MDT(nilfs->ns_gc_dat)->mi_sem, &dat_lock_key);
+
nilfs_mdt_set_shadow(nilfs->ns_dat, nilfs->ns_gc_dat);
nilfs_mdt_set_entry_size(nilfs->ns_cpfile, checkpoint_size,
sizeof(struct nilfs_cpfile_header));
diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index c13f67300fe..7ec89fc05b2 100644
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -153,23 +153,6 @@ xfs_find_bdev_for_inode(
}
/*
- * Schedule IO completion handling on a xfsdatad if this was
- * the final hold on this ioend. If we are asked to wait,
- * flush the workqueue.
- */
-STATIC void
-xfs_finish_ioend(
- xfs_ioend_t *ioend,
- int wait)
-{
- if (atomic_dec_and_test(&ioend->io_remaining)) {
- queue_work(xfsdatad_workqueue, &ioend->io_work);
- if (wait)
- flush_workqueue(xfsdatad_workqueue);
- }
-}
-
-/*
* We're now finished for good with this ioend structure.
* Update the page state via the associated buffer_heads,
* release holds on the inode and bio, and finally free
@@ -310,6 +293,27 @@ xfs_end_bio_read(
}
/*
+ * Schedule IO completion handling on a xfsdatad if this was
+ * the final hold on this ioend. If we are asked to wait,
+ * flush the workqueue.
+ */
+STATIC void
+xfs_finish_ioend(
+ xfs_ioend_t *ioend,
+ int wait)
+{
+ if (atomic_dec_and_test(&ioend->io_remaining)) {
+ struct workqueue_struct *wq = xfsdatad_workqueue;
+ if (ioend->io_work.func == xfs_end_bio_unwritten)
+ wq = xfsconvertd_workqueue;
+
+ queue_work(wq, &ioend->io_work);
+ if (wait)
+ flush_workqueue(wq);
+ }
+}
+
+/*
* Allocate and initialise an IO completion structure.
* We need to track unwritten extent write completion here initially.
* We'll need to extend this for updating the ondisk inode size later
diff --git a/fs/xfs/linux-2.6/xfs_aops.h b/fs/xfs/linux-2.6/xfs_aops.h
index 1dd52884975..221b3e66cee 100644
--- a/fs/xfs/linux-2.6/xfs_aops.h
+++ b/fs/xfs/linux-2.6/xfs_aops.h
@@ -19,6 +19,7 @@
#define __XFS_AOPS_H__
extern struct workqueue_struct *xfsdatad_workqueue;
+extern struct workqueue_struct *xfsconvertd_workqueue;
extern mempool_t *xfs_ioend_pool;
/*
diff --git a/fs/xfs/linux-2.6/xfs_buf.c b/fs/xfs/linux-2.6/xfs_buf.c
index aa1016bb913..e28800a9f2b 100644
--- a/fs/xfs/linux-2.6/xfs_buf.c
+++ b/fs/xfs/linux-2.6/xfs_buf.c
@@ -51,6 +51,7 @@ static struct shrinker xfs_buf_shake = {
static struct workqueue_struct *xfslogd_workqueue;
struct workqueue_struct *xfsdatad_workqueue;
+struct workqueue_struct *xfsconvertd_workqueue;
#ifdef XFS_BUF_TRACE
void
@@ -1775,6 +1776,7 @@ xfs_flush_buftarg(
xfs_buf_t *bp, *n;
int pincount = 0;
+ xfs_buf_runall_queues(xfsconvertd_workqueue);
xfs_buf_runall_queues(xfsdatad_workqueue);
xfs_buf_runall_queues(xfslogd_workqueue);
@@ -1831,9 +1833,15 @@ xfs_buf_init(void)
if (!xfsdatad_workqueue)
goto out_destroy_xfslogd_workqueue;
+ xfsconvertd_workqueue = create_workqueue("xfsconvertd");
+ if (!xfsconvertd_workqueue)
+ goto out_destroy_xfsdatad_workqueue;
+
register_shrinker(&xfs_buf_shake);
return 0;
+ out_destroy_xfsdatad_workqueue:
+ destroy_workqueue(xfsdatad_workqueue);
out_destroy_xfslogd_workqueue:
destroy_workqueue(xfslogd_workqueue);
out_free_buf_zone:
@@ -1849,6 +1857,7 @@ void
xfs_buf_terminate(void)
{
unregister_shrinker(&xfs_buf_shake);
+ destroy_workqueue(xfsconvertd_workqueue);
destroy_workqueue(xfsdatad_workqueue);
destroy_workqueue(xfslogd_workqueue);
kmem_zone_destroy(xfs_buf_zone);
diff --git a/fs/xfs/linux-2.6/xfs_fs_subr.c b/fs/xfs/linux-2.6/xfs_fs_subr.c
index 5aeb7777696..08be36d7326 100644
--- a/fs/xfs/linux-2.6/xfs_fs_subr.c
+++ b/fs/xfs/linux-2.6/xfs_fs_subr.c
@@ -74,14 +74,14 @@ xfs_flush_pages(
if (mapping_tagged(mapping, PAGECACHE_TAG_DIRTY)) {
xfs_iflags_clear(ip, XFS_ITRUNCATED);
- ret = filemap_fdatawrite(mapping);
- if (flags & XFS_B_ASYNC)
- return -ret;
- ret2 = filemap_fdatawait(mapping);
- if (!ret)
- ret = ret2;
+ ret = -filemap_fdatawrite(mapping);
}
- return -ret;
+ if (flags & XFS_B_ASYNC)
+ return ret;
+ ret2 = xfs_wait_on_pages(ip, first, last);
+ if (!ret)
+ ret = ret2;
+ return ret;
}
int
diff --git a/fs/xfs/linux-2.6/xfs_lrw.c b/fs/xfs/linux-2.6/xfs_lrw.c
index 7e90daa0d1d..9142192ccbe 100644
--- a/fs/xfs/linux-2.6/xfs_lrw.c
+++ b/fs/xfs/linux-2.6/xfs_lrw.c
@@ -751,10 +751,26 @@ start:
goto relock;
}
} else {
+ int enospc = 0;
+ ssize_t ret2 = 0;
+
+write_retry:
xfs_rw_enter_trace(XFS_WRITE_ENTER, xip, (void *)iovp, segs,
*offset, ioflags);
- ret = generic_file_buffered_write(iocb, iovp, segs,
+ ret2 = generic_file_buffered_write(iocb, iovp, segs,
pos, offset, count, ret);
+ /*
+ * if we just got an ENOSPC, flush the inode now we
+ * aren't holding any page locks and retry *once*
+ */
+ if (ret2 == -ENOSPC && !enospc) {
+ error = xfs_flush_pages(xip, 0, -1, 0, FI_NONE);
+ if (error)
+ goto out_unlock_internal;
+ enospc = 1;
+ goto write_retry;
+ }
+ ret = ret2;
}
current->backing_dev_info = NULL;
diff --git a/fs/xfs/linux-2.6/xfs_sync.c b/fs/xfs/linux-2.6/xfs_sync.c
index a608e72fa40..f7ba76633c2 100644
--- a/fs/xfs/linux-2.6/xfs_sync.c
+++ b/fs/xfs/linux-2.6/xfs_sync.c
@@ -62,12 +62,6 @@ xfs_sync_inodes_ag(
uint32_t first_index = 0;
int error = 0;
int last_error = 0;
- int fflag = XFS_B_ASYNC;
-
- if (flags & SYNC_DELWRI)
- fflag = XFS_B_DELWRI;
- if (flags & SYNC_WAIT)
- fflag = 0; /* synchronous overrides all */
do {
struct inode *inode;
@@ -128,11 +122,23 @@ xfs_sync_inodes_ag(
* If we have to flush data or wait for I/O completion
* we need to hold the iolock.
*/
- if ((flags & SYNC_DELWRI) && VN_DIRTY(inode)) {
- xfs_ilock(ip, XFS_IOLOCK_SHARED);
- lock_flags |= XFS_IOLOCK_SHARED;
- error = xfs_flush_pages(ip, 0, -1, fflag, FI_NONE);
- if (flags & SYNC_IOWAIT)
+ if (flags & SYNC_DELWRI) {
+ if (VN_DIRTY(inode)) {
+ if (flags & SYNC_TRYLOCK) {
+ if (xfs_ilock_nowait(ip, XFS_IOLOCK_SHARED))
+ lock_flags |= XFS_IOLOCK_SHARED;
+ } else {
+ xfs_ilock(ip, XFS_IOLOCK_SHARED);
+ lock_flags |= XFS_IOLOCK_SHARED;
+ }
+ if (lock_flags & XFS_IOLOCK_SHARED) {
+ error = xfs_flush_pages(ip, 0, -1,
+ (flags & SYNC_WAIT) ? 0
+ : XFS_B_ASYNC,
+ FI_NONE);
+ }
+ }
+ if (VN_CACHED(inode) && (flags & SYNC_IOWAIT))
xfs_ioend_wait(ip);
}
xfs_ilock(ip, XFS_ILOCK_SHARED);
@@ -398,15 +404,17 @@ STATIC void
xfs_syncd_queue_work(
struct xfs_mount *mp,
void *data,
- void (*syncer)(struct xfs_mount *, void *))
+ void (*syncer)(struct xfs_mount *, void *),
+ struct completion *completion)
{
- struct bhv_vfs_sync_work *work;
+ struct xfs_sync_work *work;
- work = kmem_alloc(sizeof(struct bhv_vfs_sync_work), KM_SLEEP);
+ work = kmem_alloc(sizeof(struct xfs_sync_work), KM_SLEEP);
INIT_LIST_HEAD(&work->w_list);
work->w_syncer = syncer;
work->w_data = data;
work->w_mount = mp;
+ work->w_completion = completion;
spin_lock(&mp->m_sync_lock);
list_add_tail(&work->w_list, &mp->m_sync_list);
spin_unlock(&mp->m_sync_lock);
@@ -420,49 +428,26 @@ xfs_syncd_queue_work(
* heads, looking about for more room...
*/
STATIC void
-xfs_flush_inode_work(
- struct xfs_mount *mp,
- void *arg)
-{
- struct inode *inode = arg;
- filemap_flush(inode->i_mapping);
- iput(inode);
-}
-
-void
-xfs_flush_inode(
- xfs_inode_t *ip)
-{
- struct inode *inode = VFS_I(ip);
-
- igrab(inode);
- xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_inode_work);
- delay(msecs_to_jiffies(500));
-}
-
-/*
- * This is the "bigger hammer" version of xfs_flush_inode_work...
- * (IOW, "If at first you don't succeed, use a Bigger Hammer").
- */
-STATIC void
-xfs_flush_device_work(
+xfs_flush_inodes_work(
struct xfs_mount *mp,
void *arg)
{
struct inode *inode = arg;
- sync_blockdev(mp->m_super->s_bdev);
+ xfs_sync_inodes(mp, SYNC_DELWRI | SYNC_TRYLOCK);
+ xfs_sync_inodes(mp, SYNC_DELWRI | SYNC_TRYLOCK | SYNC_IOWAIT);
iput(inode);
}
void
-xfs_flush_device(
+xfs_flush_inodes(
xfs_inode_t *ip)
{
struct inode *inode = VFS_I(ip);
+ DECLARE_COMPLETION_ONSTACK(completion);
igrab(inode);
- xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_device_work);
- delay(msecs_to_jiffies(500));
+ xfs_syncd_queue_work(ip->i_mount, inode, xfs_flush_inodes_work, &completion);
+ wait_for_completion(&completion);
xfs_log_force(ip->i_mount, (xfs_lsn_t)0, XFS_LOG_FORCE|XFS_LOG_SYNC);
}
@@ -497,7 +482,7 @@ xfssyncd(
{
struct xfs_mount *mp = arg;
long timeleft;
- bhv_vfs_sync_work_t *work, *n;
+ xfs_sync_work_t *work, *n;
LIST_HEAD (tmp);
set_freezable();
@@ -532,6 +517,8 @@ xfssyncd(
list_del(&work->w_list);
if (work == &mp->m_sync_work)
continue;
+ if (work->w_completion)
+ complete(work->w_completion);
kmem_free(work);
}
}
@@ -545,6 +532,7 @@ xfs_syncd_init(
{
mp->m_sync_work.w_syncer = xfs_sync_worker;
mp->m_sync_work.w_mount = mp;
+ mp->m_sync_work.w_completion = NULL;
mp->m_sync_task = kthread_run(xfssyncd, mp, "xfssyncd");
if (IS_ERR(mp->m_sync_task))
return -PTR_ERR(mp->m_sync_task);
diff --git a/fs/xfs/linux-2.6/xfs_sync.h b/fs/xfs/linux-2.6/xfs_sync.h
index 04f058c848a..308d5bf6dfb 100644
--- a/fs/xfs/linux-2.6/xfs_sync.h
+++ b/fs/xfs/linux-2.6/xfs_sync.h
@@ -21,18 +21,20 @@
struct xfs_mount;
struct xfs_perag;
-typedef struct bhv_vfs_sync_work {
+typedef struct xfs_sync_work {
struct list_head w_list;
struct xfs_mount *w_mount;
void *w_data; /* syncer routine argument */
void (*w_syncer)(struct xfs_mount *, void *);
-} bhv_vfs_sync_work_t;
+ struct completion *w_completion;
+} xfs_sync_work_t;
#define SYNC_ATTR 0x0001 /* sync attributes */
#define SYNC_DELWRI 0x0002 /* look at delayed writes */
#define SYNC_WAIT 0x0004 /* wait for i/o to complete */
#define SYNC_BDFLUSH 0x0008 /* BDFLUSH is calling -- don't block */
#define SYNC_IOWAIT 0x0010 /* wait for all I/O to complete */
+#define SYNC_TRYLOCK 0x0020 /* only try to lock inodes */
int xfs_syncd_init(struct xfs_mount *mp);
void xfs_syncd_stop(struct xfs_mount *mp);
@@ -43,8 +45,7 @@ int xfs_sync_fsdata(struct xfs_mount *mp, int flags);
int xfs_quiesce_data(struct xfs_mount *mp);
void xfs_quiesce_attr(struct xfs_mount *mp);
-void xfs_flush_inode(struct xfs_inode *ip);
-void xfs_flush_device(struct xfs_inode *ip);
+void xfs_flush_inodes(struct xfs_inode *ip);
int xfs_reclaim_inode(struct xfs_inode *ip, int locked, int sync_mode);
int xfs_reclaim_inodes(struct xfs_mount *mp, int noblock, int mode);
diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c
index 478e587087f..89b81eedce6 100644
--- a/fs/xfs/xfs_iget.c
+++ b/fs/xfs/xfs_iget.c
@@ -69,15 +69,6 @@ xfs_inode_alloc(
ASSERT(!spin_is_locked(&ip->i_flags_lock));
ASSERT(completion_done(&ip->i_flush));
- /*
- * initialise the VFS inode here to get failures
- * out of the way early.
- */
- if (!inode_init_always(mp->m_super, VFS_I(ip))) {
- kmem_zone_free(xfs_inode_zone, ip);
- return NULL;
- }
-
/* initialise the xfs inode */
ip->i_ino = ino;
ip->i_mount = mp;
@@ -113,6 +104,20 @@ xfs_inode_alloc(
#ifdef XFS_DIR2_TRACE
ip->i_dir_trace = ktrace_alloc(XFS_DIR2_KTRACE_SIZE, KM_NOFS);
#endif
+ /*
+ * Now initialise the VFS inode. We do this after the xfs_inode
+ * initialisation as internal failures will result in ->destroy_inode
+ * being called and that will pass down through the reclaim path and
+ * free the XFS inode. This path requires the XFS inode to already be
+ * initialised. Hence if this call fails, the xfs_inode has already
+ * been freed and we should not reference it at all in the error
+ * handling.
+ */
+ if (!inode_init_always(mp->m_super, VFS_I(ip)))
+ return NULL;
+
+ /* prevent anyone from using this yet */
+ VFS_I(ip)->i_state = I_NEW|I_LOCK;
return ip;
}
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 08ce72316bf..5aaa2d7ec15 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -338,38 +338,6 @@ xfs_iomap_eof_align_last_fsb(
}
STATIC int
-xfs_flush_space(
- xfs_inode_t *ip,
- int *fsynced,
- int *ioflags)
-{
- switch (*fsynced) {
- case 0:
- if (ip->i_delayed_blks) {
- xfs_iunlock(ip, XFS_ILOCK_EXCL);
- xfs_flush_inode(ip);
- xfs_ilock(ip, XFS_ILOCK_EXCL);
- *fsynced = 1;
- } else {
- *ioflags |= BMAPI_SYNC;
- *fsynced = 2;
- }
- return 0;
- case 1:
- *fsynced = 2;
- *ioflags |= BMAPI_SYNC;
- return 0;
- case 2:
- xfs_iunlock(ip, XFS_ILOCK_EXCL);
- xfs_flush_device(ip);
- xfs_ilock(ip, XFS_ILOCK_EXCL);
- *fsynced = 3;
- return 0;
- }
- return 1;
-}
-
-STATIC int
xfs_cmn_err_fsblock_zero(
xfs_inode_t *ip,
xfs_bmbt_irec_t *imap)
@@ -538,15 +506,9 @@ error_out:
}
/*
- * If the caller is doing a write at the end of the file,
- * then extend the allocation out to the file system's write
- * iosize. We clean up any extra space left over when the
- * file is closed in xfs_inactive().
- *
- * For sync writes, we are flushing delayed allocate space to
- * try to make additional space available for allocation near
- * the filesystem full boundary - preallocation hurts in that
- * situation, of course.
+ * If the caller is doing a write at the end of the file, then extend the
+ * allocation out to the file system's write iosize. We clean up any extra
+ * space left over when the file is closed in xfs_inactive().
*/
STATIC int
xfs_iomap_eof_want_preallocate(
@@ -565,7 +527,7 @@ xfs_iomap_eof_want_preallocate(
int n, error, imaps;
*prealloc = 0;
- if ((ioflag & BMAPI_SYNC) || (offset + count) <= ip->i_size)
+ if ((offset + count) <= ip->i_size)
return 0;
/*
@@ -611,7 +573,7 @@ xfs_iomap_write_delay(
xfs_extlen_t extsz;
int nimaps;
xfs_bmbt_irec_t imap[XFS_WRITE_IMAPS];
- int prealloc, fsynced = 0;
+ int prealloc, flushed = 0;
int error;
ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
@@ -627,12 +589,12 @@ xfs_iomap_write_delay(
extsz = xfs_get_extsz_hint(ip);
offset_fsb = XFS_B_TO_FSBT(mp, offset);
-retry:
error = xfs_iomap_eof_want_preallocate(mp, ip, offset, count,
ioflag, imap, XFS_WRITE_IMAPS, &prealloc);
if (error)
return error;
+retry:
if (prealloc) {
aligned_offset = XFS_WRITEIO_ALIGN(mp, (offset + count - 1));
ioalign = XFS_B_TO_FSBT(mp, aligned_offset);
@@ -659,15 +621,22 @@ retry:
/*
* If bmapi returned us nothing, and if we didn't get back EDQUOT,
- * then we must have run out of space - flush delalloc, and retry..
+ * then we must have run out of space - flush all other inodes with
+ * delalloc blocks and retry without EOF preallocation.
*/
if (nimaps == 0) {
xfs_iomap_enter_trace(XFS_IOMAP_WRITE_NOSPACE,
ip, offset, count);
- if (xfs_flush_space(ip, &fsynced, &ioflag))
+ if (flushed)
return XFS_ERROR(ENOSPC);
+ xfs_iunlock(ip, XFS_ILOCK_EXCL);
+ xfs_flush_inodes(ip);
+ xfs_ilock(ip, XFS_ILOCK_EXCL);
+
+ flushed = 1;
error = 0;
+ prealloc = 0;
goto retry;
}
diff --git a/fs/xfs/xfs_iomap.h b/fs/xfs/xfs_iomap.h
index a1cc1322fc0..fdcf7b82747 100644
--- a/fs/xfs/xfs_iomap.h
+++ b/fs/xfs/xfs_iomap.h
@@ -40,8 +40,7 @@ typedef enum {
BMAPI_IGNSTATE = (1 << 4), /* ignore unwritten state on read */
BMAPI_DIRECT = (1 << 5), /* direct instead of buffered write */
BMAPI_MMAP = (1 << 6), /* allocate for mmap write */
- BMAPI_SYNC = (1 << 7), /* sync write to flush delalloc space */
- BMAPI_TRYLOCK = (1 << 8), /* non-blocking request */
+ BMAPI_TRYLOCK = (1 << 7), /* non-blocking request */
} bmapi_flags_t;
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index f76c6d7cea2..3750f04ede0 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -562,9 +562,8 @@ xfs_log_mount(
}
mp->m_log = xlog_alloc_log(mp, log_target, blk_offset, num_bblks);
- if (!mp->m_log) {
- cmn_err(CE_WARN, "XFS: Log allocation failed: No memory!");
- error = ENOMEM;
+ if (IS_ERR(mp->m_log)) {
+ error = -PTR_ERR(mp->m_log);
goto out;
}
@@ -1180,10 +1179,13 @@ xlog_alloc_log(xfs_mount_t *mp,
xfs_buf_t *bp;
int i;
int iclogsize;
+ int error = ENOMEM;
log = kmem_zalloc(sizeof(xlog_t), KM_MAYFAIL);
- if (!log)
- return NULL;
+ if (!log) {
+ xlog_warn("XFS: Log allocation failed: No memory!");
+ goto out;
+ }
log->l_mp = mp;
log->l_targ = log_target;
@@ -1201,19 +1203,35 @@ xlog_alloc_log(xfs_mount_t *mp,
log->l_grant_reserve_cycle = 1;
log->l_grant_write_cycle = 1;
+ error = EFSCORRUPTED;
if (xfs_sb_version_hassector(&mp->m_sb)) {
log->l_sectbb_log = mp->m_sb.sb_logsectlog - BBSHIFT;
- ASSERT(log->l_sectbb_log <= mp->m_sectbb_log);
+ if (log->l_sectbb_log < 0 ||
+ log->l_sectbb_log > mp->m_sectbb_log) {
+ xlog_warn("XFS: Log sector size (0x%x) out of range.",
+ log->l_sectbb_log);
+ goto out_free_log;
+ }
+
/* for larger sector sizes, must have v2 or external log */
- ASSERT(log->l_sectbb_log == 0 ||
- log->l_logBBstart == 0 ||
- xfs_sb_version_haslogv2(&mp->m_sb));
- ASSERT(mp->m_sb.sb_logsectlog >= BBSHIFT);
+ if (log->l_sectbb_log != 0 &&
+ (log->l_logBBstart != 0 &&
+ !xfs_sb_version_haslogv2(&mp->m_sb))) {
+ xlog_warn("XFS: log sector size (0x%x) invalid "
+ "for configuration.", log->l_sectbb_log);
+ goto out_free_log;
+ }
+ if (mp->m_sb.sb_logsectlog < BBSHIFT) {
+ xlog_warn("XFS: Log sector log (0x%x) too small.",
+ mp->m_sb.sb_logsectlog);
+ goto out_free_log;
+ }
}
log->l_sectbb_mask = (1 << log->l_sectbb_log) - 1;
xlog_get_iclog_buffer_size(mp, log);
+ error = ENOMEM;
bp = xfs_buf_get_empty(log->l_iclog_size, mp->m_logdev_targp);
if (!bp)
goto out_free_log;
@@ -1313,7 +1331,8 @@ out_free_iclog:
xfs_buf_free(log->l_xbuf);
out_free_log:
kmem_free(log);
- return NULL;
+out:
+ return ERR_PTR(-error);
} /* xlog_alloc_log */
@@ -2541,18 +2560,19 @@ redo:
xlog_ins_ticketq(&log->l_reserve_headq, tic);
xlog_trace_loggrant(log, tic,
"xlog_grant_log_space: sleep 2");
+ spin_unlock(&log->l_grant_lock);
+ xlog_grant_push_ail(log->l_mp, need_bytes);
+ spin_lock(&log->l_grant_lock);
+
XFS_STATS_INC(xs_sleep_logspace);
sv_wait(&tic->t_wait, PINOD|PLTWAIT, &log->l_grant_lock, s);
- if (XLOG_FORCED_SHUTDOWN(log)) {
- spin_lock(&log->l_grant_lock);
+ spin_lock(&log->l_grant_lock);
+ if (XLOG_FORCED_SHUTDOWN(log))
goto error_return;
- }
xlog_trace_loggrant(log, tic,
"xlog_grant_log_space: wake 2");
- xlog_grant_push_ail(log->l_mp, need_bytes);
- spin_lock(&log->l_grant_lock);
goto redo;
} else if (tic->t_flags & XLOG_TIC_IN_Q)
xlog_del_ticketq(&log->l_reserve_headq, tic);
@@ -2631,7 +2651,7 @@ xlog_regrant_write_log_space(xlog_t *log,
* for more free space, otherwise try to get some space for
* this transaction.
*/
-
+ need_bytes = tic->t_unit_res;
if ((ntic = log->l_write_headq)) {
free_bytes = xlog_space_left(log, log->l_grant_write_cycle,
log->l_grant_write_bytes);
@@ -2651,26 +2671,25 @@ xlog_regrant_write_log_space(xlog_t *log,
xlog_trace_loggrant(log, tic,
"xlog_regrant_write_log_space: sleep 1");
+ spin_unlock(&log->l_grant_lock);
+ xlog_grant_push_ail(log->l_mp, need_bytes);
+ spin_lock(&log->l_grant_lock);
+
XFS_STATS_INC(xs_sleep_logspace);
sv_wait(&tic->t_wait, PINOD|PLTWAIT,
&log->l_grant_lock, s);
/* If we're shutting down, this tic is already
* off the queue */
- if (XLOG_FORCED_SHUTDOWN(log)) {
- spin_lock(&log->l_grant_lock);
+ spin_lock(&log->l_grant_lock);
+ if (XLOG_FORCED_SHUTDOWN(log))
goto error_return;
- }
xlog_trace_loggrant(log, tic,
"xlog_regrant_write_log_space: wake 1");
- xlog_grant_push_ail(log->l_mp, tic->t_unit_res);
- spin_lock(&log->l_grant_lock);
}
}
- need_bytes = tic->t_unit_res;
-
redo:
if (XLOG_FORCED_SHUTDOWN(log))
goto error_return;
@@ -2680,19 +2699,20 @@ redo:
if (free_bytes < need_bytes) {
if ((tic->t_flags & XLOG_TIC_IN_Q) == 0)
xlog_ins_ticketq(&log->l_write_headq, tic);
+ spin_unlock(&log->l_grant_lock);
+ xlog_grant_push_ail(log->l_mp, need_bytes);
+ spin_lock(&log->l_grant_lock);
+
XFS_STATS_INC(xs_sleep_logspace);
sv_wait(&tic->t_wait, PINOD|PLTWAIT, &log->l_grant_lock, s);
/* If we're shutting down, this tic is already off the queue */
- if (XLOG_FORCED_SHUTDOWN(log)) {
- spin_lock(&log->l_grant_lock);
+ spin_lock(&log->l_grant_lock);
+ if (XLOG_FORCED_SHUTDOWN(log))
goto error_return;
- }
xlog_trace_loggrant(log, tic,
"xlog_regrant_write_log_space: wake 2");
- xlog_grant_push_ail(log->l_mp, need_bytes);
- spin_lock(&log->l_grant_lock);
goto redo;
} else if (tic->t_flags & XLOG_TIC_IN_Q)
xlog_del_ticketq(&log->l_write_headq, tic);
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 7af44adffc8..d6a64392f98 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -313,7 +313,7 @@ typedef struct xfs_mount {
#endif
struct xfs_mru_cache *m_filestream; /* per-mount filestream data */
struct task_struct *m_sync_task; /* generalised sync thread */
- bhv_vfs_sync_work_t m_sync_work; /* work item for VFS_SYNC */
+ xfs_sync_work_t m_sync_work; /* work item for VFS_SYNC */
struct list_head m_sync_list; /* sync thread work item list */
spinlock_t m_sync_lock; /* work item list lock */
int m_sync_seq; /* sync thread generation no. */
diff --git a/fs/xfs/xfs_vnodeops.c b/fs/xfs/xfs_vnodeops.c
index 7394c7af5de..19cf90a9c76 100644
--- a/fs/xfs/xfs_vnodeops.c
+++ b/fs/xfs/xfs_vnodeops.c
@@ -1457,6 +1457,13 @@ xfs_create(
error = xfs_trans_reserve(tp, resblks, log_res, 0,
XFS_TRANS_PERM_LOG_RES, log_count);
if (error == ENOSPC) {
+ /* flush outstanding delalloc blocks and retry */
+ xfs_flush_inodes(dp);
+ error = xfs_trans_reserve(tp, resblks, XFS_CREATE_LOG_RES(mp), 0,
+ XFS_TRANS_PERM_LOG_RES, XFS_CREATE_LOG_COUNT);
+ }
+ if (error == ENOSPC) {
+ /* No space at all so try a "no-allocation" reservation */
resblks = 0;
error = xfs_trans_reserve(tp, 0, log_res, 0,
XFS_TRANS_PERM_LOG_RES, log_count);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 20:31:49 +0000