ocfs2: use magic.h

Filesystems generally use SUPER_MAGIC values from magic.h instead of a
local definition.

Link: http://lkml.kernel.org/r/20170521154217.27917-1-fabf@skynet.be
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Reviewed-by: Mark Fasheh <mfasheh@versity.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joseph Qi <jiangqi903@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/fs/ocfs2/ocfs2_fs.h b/fs/ocfs2/ocfs2_fs.h
index 44d178b..5bb4a89 100644 (file)
--- a/fs/ocfs2/ocfs2_fs.h
+++ b/fs/ocfs2/ocfs2_fs.h
@@ -25,6 +25,8 @@
 #ifndef _OCFS2_FS_H
 #define _OCFS2_FS_H
 
+#include <linux/magic.h>
+
 /* Version */
 #define OCFS2_MAJOR_REV_LEVEL          0
 #define OCFS2_MINOR_REV_LEVEL                  90
@@ -56,9 +58,6 @@
 #define OCFS2_MIN_BLOCKSIZE            512
 #define OCFS2_MAX_BLOCKSIZE            OCFS2_MIN_CLUSTERSIZE
 
-/* Filesystem magic number */
-#define OCFS2_SUPER_MAGIC              0x7461636f
-
 /* Object signatures */
 #define OCFS2_SUPER_BLOCK_SIGNATURE    "OCFSV2"
 #define OCFS2_INODE_SIGNATURE          "INODE01"

diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h
index a0908f1..e439565 100644 (file)
--- a/include/uapi/linux/magic.h
+++ b/include/uapi/linux/magic.h
@@ -42,6 +42,7 @@
 #define MSDOS_SUPER_MAGIC      0x4d44          /* MD */
 #define NCP_SUPER_MAGIC                0x564c          /* Guess, what 0x564c is :-) */
 #define NFS_SUPER_MAGIC                0x6969
+#define OCFS2_SUPER_MAGIC      0x7461636f
 #define OPENPROM_SUPER_MAGIC   0x9fa1
 #define QNX4_SUPER_MAGIC       0x002f          /* qnx4 fs detection */
 #define QNX6_SUPER_MAGIC       0x68191122      /* qnx6 fs detection */