[RFC PATCH 3/4] Change xfs_sb_from_disk() interface to take a mount pointer

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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@xxxxxxxxxx>
---
 fs/xfs/xfs_log_recover.c |    2 +-
 fs/xfs/xfs_mount.c       |    6 ++++--
 fs/xfs/xfs_mount.h       |    2 +-
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 19f69e2..c082e44 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__ */
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 541a508..b38eb84 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 d06afbc..25e9908 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)
-- 
1.7.1

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