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| author | Liu Bo <liubo2009@cn.fujitsu.com> | 2012-01-26 21:01:12 +0100 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2012-01-26 21:01:12 +0100 |
| commit | 7ec31b548a17f773ab6289e795ed3a6820e8b56e (patch) | |
| tree | c0c738e7c27e4ac6185f02acd76de64986218906 /fs | |
| parent | Btrfs: fix warning for 32-bit build of fs/btrfs/check-integrity.c (diff) | |
| download | linux-7ec31b548a17f773ab6289e795ed3a6820e8b56e.tar.xz linux-7ec31b548a17f773ab6289e795ed3a6820e8b56e.zip | |
Btrfs: do not defrag a file partially
xfstests 218 complains that btrfs defrags a file partially:
After: 1
Write backwards sync, but contiguous - should defrag to 1 extent
Before: 10
-After: 1
+After: 2
To fix this, we need to set max_to_defrag count properly.
Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/ioctl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index 6834be4c8709..0b06a5ca8afc 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -1066,7 +1066,7 @@ int btrfs_defrag_file(struct inode *inode, struct file *file, i = range->start >> PAGE_CACHE_SHIFT; } if (!max_to_defrag) - max_to_defrag = last_index; + max_to_defrag = last_index + 1; /* * make writeback starts from i, so the defrag range can be |