diff mbox

[12/23] xfs: remove uuid_getnodeuniq and xfs_uu_t

Message ID 20170518062705.25902-13-hch@lst.de (mailing list archive)
State Not Applicable
Headers show

Commit Message

Christoph Hellwig May 18, 2017, 6:26 a.m. UTC 
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(-)

Comments

Brian Foster May 18, 2017, 1:27 p.m. UTC | #1 
On Thu, May 18, 2017 at 08:26:54AM +0200, Christoph Hellwig wrote:
> Directly use the v1 intepretation of uuid_t instead.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> ---

Reviewed-by: Brian Foster <bfoster@redhat.com>

>  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 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..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
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-xfs" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
Darrick J. Wong May 18, 2017, 11:35 p.m. UTC | #2 
On Thu, May 18, 2017 at 08:26:54AM +0200, Christoph Hellwig wrote:
> Directly use the v1 intepretation of uuid_t instead.
> 
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

--D

> ---
>  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 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..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
> 
> --
> To unsubscribe from this list: send the line "unsubscribe linux-xfs" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
diff mbox

Patch

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..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 */