Btrfs: make defragment work with nodatacow option

Browse source

Btrfs defragment will utilize COW feature, which means this
did not work for nodatacow option, this problem was detected
by xfstests generic/018 with nodatacow mount option.

Fix this problem by forcing cow for a extent with state
@EXTETN_DEFRAG setting.

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>

...

This commit is contained in:

Wang Shilong 2014-07-03 18:22:07 +08:00 • committed by Chris Mason

parent 48fcc3ff7d

commit 47059d930f

2 changed files with 42 additions and 3 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

6

fs/btrfs/btrfs_inode.h

View file

39

fs/btrfs/inode.c

View file