Change xfs_sb_from_disk() interface to take a mount pointer

Change xfs_sb_from_disk() interface to take a mount pointer
instead of a superblock pointer.

This is to print mount point specific error messages in future
fixes.

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>

3 files changed, 6 insertions, 4 deletions

diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 15ff5392fb6..403825eb5c1 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -3695,7 +3695,7 @@ xlog_do_recover(
 
         /* Convert superblock from on-disk format */
         sbp = &log->l_mp->m_sb;
-        xfs_sb_from_disk(sbp, XFS_BUF_TO_SBP(bp));
+        xfs_sb_from_disk(log->l_mp, XFS_BUF_TO_SBP(bp));
         ASSERT(sbp->sb_magicnum == XFS_SB_MAGIC);
         ASSERT(xfs_sb_good_version(sbp));
         xfs_buf_relse(bp);
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index e07f8528c5e..1ffead4b229 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -553,9 +553,11 @@ out_unwind:
 
 void
 xfs_sb_from_disk(
-        xfs_sb_t        *to,
+        struct xfs_mount        *mp,
         xfs_dsb_t       *from)
 {
+        struct xfs_sb *to = &mp->m_sb;
+
         to->sb_magicnum = be32_to_cpu(from->sb_magicnum);
         to->sb_blocksize = be32_to_cpu(from->sb_blocksize);
         to->sb_dblocks = be64_to_cpu(from->sb_dblocks);
@@ -693,7 +695,7 @@ reread:
          * Initialize the mount structure from the superblock.
          * But first do some basic consistency checking.
          */
-        xfs_sb_from_disk(&mp->m_sb, XFS_BUF_TO_SBP(bp));
+        xfs_sb_from_disk(mp, XFS_BUF_TO_SBP(bp));
         error = xfs_mount_validate_sb(mp, &(mp->m_sb), flags);
         if (error) {
                 if (loud)
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 19f69e23250..c082e44dad2 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -395,7 +395,7 @@ extern void	xfs_set_low_space_thresholds(struct xfs_mount *);
 extern void     xfs_mod_sb(struct xfs_trans *, __int64_t);
 extern int      xfs_initialize_perag(struct xfs_mount *, xfs_agnumber_t,
                                         xfs_agnumber_t *);
-extern void     xfs_sb_from_disk(struct xfs_sb *, struct xfs_dsb *);
+extern void     xfs_sb_from_disk(struct xfs_mount *, struct xfs_dsb *);
 extern void     xfs_sb_to_disk(struct xfs_dsb *, struct xfs_sb *, __int64_t);
 
 #endif  /* __XFS_MOUNT_H__ */