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authorDave Chinner <dchinner@redhat.com>2015-06-04 09:19:18 +1000
committerDave Chinner <david@fromorbit.com>2015-06-04 09:19:18 +1000
commitcbe4dab119f211ff6642d617f541087894e99e4f (patch)
tree6751ee32423a7799e7ad31befc1c248365545030 /fs/xfs/xfs_mount.h
parent6e1ba0bcb84b3f97616feb07c27f974509ba57be (diff)
xfs: add initial DAX support
Add initial DAX support to XFS. To do this we need a new mount option to turn DAX on filesystem, and we need to propagate this into the inode flags whenever an inode is instantiated so that the per-inode checks throughout the code Do The Right Thing. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_mount.h')
-rw-r--r--fs/xfs/xfs_mount.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 8c995a2ccb6f..cd44e88efa53 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -179,6 +179,8 @@ typedef struct xfs_mount {
allocator */
#define XFS_MOUNT_NOATTR2 (1ULL << 25) /* disable use of attr2 format */
+#define XFS_MOUNT_DAX (1ULL << 62) /* TEST ONLY! */
+
/*
* Default minimum read and write sizes.