diff options
Diffstat (limited to 'fs/btrfs/file.c')
| -rw-r--r-- | fs/btrfs/file.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 8a144f9cb7ac..719e68ab552c 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -2098,6 +2098,21 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync) atomic_inc(&root->log_batch); /* + * If the inode needs a full sync, make sure we use a full range to + * avoid log tree corruption, due to hole detection racing with ordered + * extent completion for adjacent ranges and races between logging and + * completion of ordered extents for adjancent ranges - both races + * could lead to file extent items in the log with overlapping ranges. + * Do this while holding the inode lock, to avoid races with other + * tasks. + */ + if (test_bit(BTRFS_INODE_NEEDS_FULL_SYNC, + &BTRFS_I(inode)->runtime_flags)) { + start = 0; + end = LLONG_MAX; + } + + /* * Before we acquired the inode's lock, someone may have dirtied more * pages in the target range. We need to make sure that writeback for * any such pages does not start while we are logging the inode, because |