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authorliubo <liubo2009@cn.fujitsu.com>2011-03-21 08:54:27 +0000
committerroot <Chris Mason chris.mason@oracle.com>2011-03-28 05:37:40 -0400
commit32471f6e1983922473573da62cbee58699574aa4 (patch)
tree64f17f694f86f72c6d847d6dceb9eb5f78c20a45 /include/linux
parentfc0e4a314e361af3b13d9320e92c64118f9a3e61 (diff)
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>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/fs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index e38b50a4b9d2..de9dd8119b71 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 */