diff options
| -rw-r--r-- | fs/btrfs/tree-log.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 3fc8d854d7fb..4a04659fded7 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -5420,9 +5420,19 @@ log_extents: } } + /* + * Don't update last_log_commit if we logged that an inode exists after + * it was loaded to memory (full_sync bit set). + * This is to prevent data loss when we do a write to the inode, then + * the inode gets evicted after all delalloc was flushed, then we log + * it exists (due to a rename for example) and then fsync it. This last + * fsync would do nothing (not logging the extents previously written). + */ spin_lock(&inode->lock); inode->logged_trans = trans->transid; - inode->last_log_commit = inode->last_sub_trans; + if (inode_only != LOG_INODE_EXISTS || + !test_bit(BTRFS_INODE_NEEDS_FULL_SYNC, &inode->runtime_flags)) + inode->last_log_commit = inode->last_sub_trans; spin_unlock(&inode->lock); out_unlock: mutex_unlock(&inode->log_mutex); |