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| author | Chris Mason <chris.mason@oracle.com> | 2008-06-25 16:01:31 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:04:04 -0400 |
| commit | 1b1e2135dc1e4efbcf25ac9ac9979316d4e1193e (patch) | |
| tree | 2af53ed5d4c368bbefd9de94f0adc2902a785468 /fs/btrfs/inode.c | |
| parent | 079899c2384023cd8efcd3806680b4f1d2abbd54 (diff) | |
| download | linux-next-1b1e2135dc1e4efbcf25ac9ac9979316d4e1193e.tar.gz | |
Btrfs: Add a per-inode csum mutex to avoid races creating csum items
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/inode.c')
| -rw-r--r-- | fs/btrfs/inode.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index bbba3350d023..d39433dfb2c7 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -351,7 +351,9 @@ int __btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio, trans = btrfs_start_transaction(root, 1); btrfs_set_trans_block_group(trans, inode); + mutex_lock(&BTRFS_I(inode)->csum_mutex); btrfs_csum_file_blocks(trans, root, inode, bio, sums); + mutex_unlock(&BTRFS_I(inode)->csum_mutex); ret = btrfs_end_transaction(trans, root); BUG_ON(ret); @@ -1400,6 +1402,7 @@ static int btrfs_init_locked_inode(struct inode *inode, void *p) inode->i_mapping, GFP_NOFS); extent_io_tree_init(&BTRFS_I(inode)->io_failure_tree, inode->i_mapping, GFP_NOFS); + mutex_init(&BTRFS_I(inode)->csum_mutex); atomic_set(&BTRFS_I(inode)->ordered_writeback, 0); return 0; } @@ -1701,6 +1704,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans, inode->i_mapping, GFP_NOFS); extent_io_tree_init(&BTRFS_I(inode)->io_failure_tree, inode->i_mapping, GFP_NOFS); + mutex_init(&BTRFS_I(inode)->csum_mutex); atomic_set(&BTRFS_I(inode)->ordered_writeback, 0); BTRFS_I(inode)->delalloc_bytes = 0; BTRFS_I(inode)->root = root; @@ -1924,6 +1928,7 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry, inode->i_mapping, GFP_NOFS); extent_io_tree_init(&BTRFS_I(inode)->io_failure_tree, inode->i_mapping, GFP_NOFS); + mutex_init(&BTRFS_I(inode)->csum_mutex); BTRFS_I(inode)->delalloc_bytes = 0; atomic_set(&BTRFS_I(inode)->ordered_writeback, 0); BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops; @@ -2862,6 +2867,7 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry, inode->i_mapping, GFP_NOFS); extent_io_tree_init(&BTRFS_I(inode)->io_failure_tree, inode->i_mapping, GFP_NOFS); + mutex_init(&BTRFS_I(inode)->csum_mutex); BTRFS_I(inode)->delalloc_bytes = 0; atomic_set(&BTRFS_I(inode)->ordered_writeback, 0); BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops; |