From: Christoph Hellwig <hch@lst.de>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Amir Goldstein <amir73il@gmail.com>,
linux-fsdevel@vger.kernel.org
Cc: Shaohua Li <shli@kernel.org>,
Dan Williams <dan.j.williams@intel.com>,
David Howells <dhowells@redhat.com>,
Steven Whitehouse <swhiteho@redhat.com>,
Mimi Zohar <zohar@linux.vnet.ibm.com>,
linux-xfs@vger.kernel.org, linux-raid@vger.kernel.org,
linux-nvdimm@lists.01.org, linux-kernel@vger.kernel.org,
linux-block@vger.kernel.org
Subject: [PATCH 13/24] xfs: remove uuid_getnodeuniq and xfs_uu_t
Date: Wed, 31 May 2017 18:18:15 +0200 [thread overview]
Message-ID: <20170531161826.23243-14-hch@lst.de> (raw)
In-Reply-To: <20170531161826.23243-1-hch@lst.de>
Opencode uuid_getnodeuniq in the only caller, and directly decode
the uuid_t representation instead of using a structure cast for it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/xfs/uuid.c | 25 -------------------------
fs/xfs/uuid.h | 1 -
fs/xfs/xfs_mount.c | 5 ++++-
3 files changed, 4 insertions(+), 27 deletions(-)
diff --git a/fs/xfs/uuid.c b/fs/xfs/uuid.c
index 29ed78c8637b..737c186ea98b 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 86bbed071e79..5aea49bf0963 100644
--- a/fs/xfs/uuid.h
+++ b/fs/xfs/uuid.h
@@ -19,6 +19,5 @@
#define __XFS_SUPPORT_UUID_H__
extern int uuid_is_nil(uuid_t *uuid);
-extern void uuid_getnodeuniq(uuid_t *uuid, int fsid [2]);
#endif /* __XFS_SUPPORT_UUID_H__ */
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 2eaf81859166..51f7d03ef86c 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -793,7 +793,10 @@ 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] =
+ (get_unaligned_be16(&sbp->sb_uuid.b[8]) << 16) |
+ get_unaligned_be16(&sbp->sb_uuid.b[4]);
+ mp->m_fixedfsid[1] = get_unaligned_be32(&sbp->sb_uuid.b[0]);
mp->m_dmevmask = 0; /* not persistent; set after each mount */
--
2.11.0
next prev parent reply other threads:[~2017-05-31 16:19 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-31 16:18 cleanup UUID types V6 Christoph Hellwig
2017-05-31 16:18 ` [PATCH 01/24] uuid,afs: move struct uuid_v1 back into afs Christoph Hellwig
2017-05-31 16:18 ` [PATCH 02/24] xfs: use uuid_copy() helper to abstract uuid_t Christoph Hellwig
2017-05-31 16:18 ` [PATCH 03/24] xfs: use uuid_be to implement the uuid_t type Christoph Hellwig
2017-05-31 16:18 ` [PATCH 04/24] md: namespace private helper names Christoph Hellwig
2017-05-31 16:18 ` [PATCH 05/24] uuid: remove uuid_be defintions from the uapi header Christoph Hellwig
2017-05-31 16:18 ` [PATCH 06/24] uuid: rename uuid types Christoph Hellwig
2017-05-31 16:18 ` [PATCH 07/24] nfsd: namespace-prefix uuid_parse Christoph Hellwig
2017-05-31 16:18 ` [PATCH 08/24] uuid: rename uuid_to_bin to uuid_parse Christoph Hellwig
2017-05-31 18:14 ` Andy Shevchenko
2017-05-31 19:40 ` Christoph Hellwig
2017-05-31 16:18 ` [PATCH 09/24] uuid: don't export guid_index and uuid_index Christoph Hellwig
2017-05-31 16:18 ` [PATCH 10/24] uuid: hoist helpers uuid_equal() and uuid_copy() from xfs Christoph Hellwig
2017-05-31 16:18 ` [PATCH 11/24] uuid: hoist uuid_is_null() helper from libnvdimm Christoph Hellwig
2017-05-31 16:18 ` [PATCH 12/24] S390/sysinfo: use uuid_is_null instead of opencoding it Christoph Hellwig
2017-05-31 16:18 ` Christoph Hellwig [this message]
2017-05-31 16:18 ` [PATCH 14/24] xfs: use the common helper uuid_is_null() Christoph Hellwig
2017-05-31 16:18 ` [PATCH 15/24] block: remove blk_part_pack_uuid Christoph Hellwig
2017-05-31 18:16 ` Andy Shevchenko
2017-05-31 19:39 ` Christoph Hellwig
2017-05-31 16:18 ` [PATCH 16/24] ima/policy: switch to use uuid_t Christoph Hellwig
2017-05-31 16:18 ` [PATCH 17/24] fs: switch ->s_uuid to uuid_t Christoph Hellwig
2017-05-31 16:18 ` [PATCH 18/24] overlayfs: use uuid_t instead of uuid_be Christoph Hellwig
2017-05-31 16:18 ` [PATCH 19/24] partitions/ldm: switch to use uuid_t Christoph Hellwig
2017-05-31 16:18 ` [PATCH 20/24] sysctl: " Christoph Hellwig
2017-05-31 16:18 ` [PATCH 21/24] nvme: switch to uuid_t Christoph Hellwig
2017-05-31 16:18 ` [PATCH 22/24] scsi_debug: " Christoph Hellwig
2017-05-31 16:18 ` [PATCH 23/24] tmpfs: generate random sb->s_uuid Christoph Hellwig
2017-05-31 16:18 ` [PATCH 24/24] MAINTAINERS: add uuid entry Christoph Hellwig
2017-05-31 18:25 ` [PATCH 01/24] uuid,afs: move struct uuid_v1 back into afs David Howells
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