[PATCH 08/16] xfs: remove uuid_getnodeuniq and xfs_uu_t

[Christoph Hellwig <hch@lst.de>]

Directly use the v1 intepretation of uuid_t instead.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 fs/xfs/uuid.c      | 25 -------------------------
 fs/xfs/uuid.h      |  1 -
 fs/xfs/xfs_mount.c |  6 +++++-
 3 files changed, 5 insertions(+), 27 deletions(-)

diff --git a/fs/xfs/uuid.c b/fs/xfs/uuid.c
index b83f76b6d410..937deaf2128d 100644
--- a/fs/xfs/uuid.c
+++ b/fs/xfs/uuid.c
@@ -17,31 +17,6 @@
  */
 #include <xfs.h>
 
-/* IRIX interpretation of an uuid_t */
-typedef struct {
-	__be32	uu_timelow;
-	__be16	uu_timemid;
-	__be16	uu_timehi;
-	__be16	uu_clockseq;
-	__be16	uu_node[3];
-} xfs_uu_t;
-
-/*
- * uuid_getnodeuniq - obtain the node unique fields of a UUID.
- *
- * This is not in any way a standard or condoned UUID function;
- * it just something that's needed for user-level file handles.
- */
-void
-uuid_getnodeuniq(uuid_t *uuid, int fsid [2])
-{
-	xfs_uu_t *uup = (xfs_uu_t *)uuid;
-
-	fsid[0] = (be16_to_cpu(uup->uu_clockseq) << 16) |
-		   be16_to_cpu(uup->uu_timemid);
-	fsid[1] = be32_to_cpu(uup->uu_timelow);
-}
-
 int
 uuid_is_nil(uuid_t *uuid)
 {
diff --git a/fs/xfs/uuid.h b/fs/xfs/uuid.h
index 4f1441ba4fa5..65b5cebf2f99 100644
--- a/fs/xfs/uuid.h
+++ b/fs/xfs/uuid.h
@@ -20,7 +20,6 @@
 
 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]);
 
 static inline void
 uuid_copy(uuid_t *dst, uuid_t *src)
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 2eaf81859166..742e4a61c0bc 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -793,7 +793,11 @@ xfs_mountfs(
 	 *  Copies the low order bits of the timestamp and the randomly
 	 *  set "sequence" number out of a UUID.
 	 */
-	uuid_getnodeuniq(&sbp->sb_uuid, mp->m_fixedfsid);
+	mp->m_fixedfsid[0] =
+		((u32)sbp->sb_uuid.v1.clock_seq_hi_and_reserved << 24) |
+		((u32)sbp->sb_uuid.v1.clock_seq_low << 16) |
+		 be16_to_cpu(sbp->sb_uuid.v1.time_mid);
+	mp->m_fixedfsid[1] = be32_to_cpu(sbp->sb_uuid.v1.time_low);
 
 	mp->m_dmevmask = 0;	/* not persistent; set after each mount */
 
-- 
2.11.0

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