linux-kernel - [PATCH 03/22] xfs: use uuid_be to implement the uuid

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Message-Id: <20170528102008.30276-4-hch@lst.de>
Date:   Sun, 28 May 2017 13:19:49 +0300
From:   Christoph Hellwig <hch@....de>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Amir Goldstein <amir73il@...il.com>,
        linux-fsdevel@...r.kernel.org
Cc:     Shaohua Li <shli@...nel.org>,
        Dan Williams <dan.j.williams@...el.com>,
        David Howells <dhowells@...hat.com>,
        Steven Whitehouse <swhiteho@...hat.com>,
        Mimi Zohar <zohar@...ux.vnet.ibm.com>,
        linux-xfs@...r.kernel.org, linux-raid@...r.kernel.org,
        linux-nvdimm@...ts.01.org, linux-kernel@...r.kernel.org,
        linux-block@...r.kernel.org
Subject: [PATCH 03/22] xfs: use uuid_be to implement the uuid_t type

Use the generic Linux definition to implement our UUID type, this will
allow using more generic infrastructure in the future.

Signed-off-by: Christoph Hellwig <hch@....de>
Reviewed-by: Amir Goldstein <amir73il@...il.com>
Reviewed-by: Brian Foster <bfoster@...hat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Reviewed-by: Darrick J. Wong <darrick.wong@...cle.com>
---
 fs/xfs/uuid.h      | 4 ----
 fs/xfs/xfs_linux.h | 3 +++
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/fs/xfs/uuid.h b/fs/xfs/uuid.h
index 104db0f3bed6..4f1441ba4fa5 100644
--- a/fs/xfs/uuid.h
+++ b/fs/xfs/uuid.h
@@ -18,10 +18,6 @@
 #ifndef __XFS_SUPPORT_UUID_H__
 #define __XFS_SUPPORT_UUID_H__
 
-typedef struct {
-	unsigned char	__u_bits[16];
-} uuid_t;
-
 extern int uuid_is_nil(uuid_t *uuid);
 extern int uuid_equal(uuid_t *uuid1, uuid_t *uuid2);
 extern void uuid_getnodeuniq(uuid_t *uuid, int fsid [2]);
diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
index 044fb0e15390..89ee5ec66837 100644
--- a/fs/xfs/xfs_linux.h
+++ b/fs/xfs/xfs_linux.h
@@ -19,6 +19,7 @@
 #define __XFS_LINUX__
 
 #include <linux/types.h>
+#include <linux/uuid.h>
 
 /*
  * Kernel specific type declarations for XFS
@@ -38,6 +39,8 @@ typedef __s64			xfs_daddr_t;	/* <disk address> type */
 typedef __u32			xfs_dev_t;
 typedef __u32			xfs_nlink_t;
 
+typedef uuid_be			uuid_t;
+
 #include "xfs_types.h"
 
 #include "kmem.h"
-- 
2.11.0