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Commit 32471f6e authored by liubo's avatar liubo Committed by root
Browse files

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: default avatarLiu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
parent fc0e4a31

include/linux/fs.h

+2 −0
Original line number Diff line number Diff line
@@ -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 */