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| author | liubo <liubo2009@cn.fujitsu.com> | 2011-03-21 08:54:27 (GMT) |
|---|---|---|
| committer | root <Chris Mason chris.mason@oracle.com> | 2011-03-28 09:37:40 (GMT) |
| commit | 32471f6e1983922473573da62cbee58699574aa4 (patch) | |
| tree | 64f17f694f86f72c6d847d6dceb9eb5f78c20a45 | |
| parent | fc0e4a314e361af3b13d9320e92c64118f9a3e61 (diff) | |
| download | linux-32471f6e1983922473573da62cbee58699574aa4.tar.xz | |
Btrfs: add datacow flag in inode flag
For datacow control, the corresponding inode flags are needed.
This is for btrfs use.
v1->v2:
Change FS_COW_FL to another bit due to conflict with the upstream e2fsprogs
Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
| -rw-r--r-- | include/linux/fs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index e38b50a4..de9dd81 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -364,6 +364,8 @@ struct inodes_stat_t { #define FS_TOPDIR_FL 0x00020000 /* Top of directory hierarchies*/ #define FS_EXTENT_FL 0x00080000 /* Extents */ #define FS_DIRECTIO_FL 0x00100000 /* Use direct i/o */ +#define FS_NOCOW_FL 0x00800000 /* Do not cow file */ +#define FS_COW_FL 0x02000000 /* Cow file */ #define FS_RESERVED_FL 0x80000000 /* reserved for ext2 lib */ #define FS_FL_USER_VISIBLE 0x0003DFFF /* User visible flags */ |