From: Christoph Hellwig <hch@xxxxxx>
Source kernel commit: 86a0264ef26e90214a5bd74c72fb6e3455403bcf
When growfs sets an extent size, it doesn't updated the m_rtxblklog and
m_rtxblkmask values, which could lead to incorrect usage of them if they
were set before and can't be used for the new extent size.
Add a xfs_mount_sb_set_rextsize helper that updates the two fields, and
also use it when calculating the new RT geometry instead of disabling
the optimization there.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
libxfs/xfs_sb.c | 12 ++++++++++--
libxfs/xfs_sb.h | 2 ++
2 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/libxfs/xfs_sb.c b/libxfs/xfs_sb.c
index c3185a4daeb4aa..5f7ff4fa4e49b1 100644
--- a/libxfs/xfs_sb.c
+++ b/libxfs/xfs_sb.c
@@ -962,6 +962,15 @@ const struct xfs_buf_ops xfs_sb_quiet_buf_ops = {
.verify_write = xfs_sb_write_verify,
};
+void
+xfs_mount_sb_set_rextsize(
+ struct xfs_mount *mp,
+ struct xfs_sb *sbp)
+{
+ mp->m_rtxblklog = log2_if_power2(sbp->sb_rextsize);
+ mp->m_rtxblkmask = mask64_if_power2(sbp->sb_rextsize);
+}
+
/*
* xfs_mount_common
*
@@ -986,8 +995,7 @@ xfs_sb_mount_common(
mp->m_blockmask = sbp->sb_blocksize - 1;
mp->m_blockwsize = sbp->sb_blocksize >> XFS_WORDLOG;
mp->m_blockwmask = mp->m_blockwsize - 1;
- mp->m_rtxblklog = log2_if_power2(sbp->sb_rextsize);
- mp->m_rtxblkmask = mask64_if_power2(sbp->sb_rextsize);
+ xfs_mount_sb_set_rextsize(mp, sbp);
mp->m_alloc_mxr[0] = xfs_allocbt_maxrecs(mp, sbp->sb_blocksize, 1);
mp->m_alloc_mxr[1] = xfs_allocbt_maxrecs(mp, sbp->sb_blocksize, 0);
diff --git a/libxfs/xfs_sb.h b/libxfs/xfs_sb.h
index 796f02191dfd2e..885c837559914d 100644
--- a/libxfs/xfs_sb.h
+++ b/libxfs/xfs_sb.h
@@ -17,6 +17,8 @@ extern void xfs_log_sb(struct xfs_trans *tp);
extern int xfs_sync_sb(struct xfs_mount *mp, bool wait);
extern int xfs_sync_sb_buf(struct xfs_mount *mp);
extern void xfs_sb_mount_common(struct xfs_mount *mp, struct xfs_sb *sbp);
+void xfs_mount_sb_set_rextsize(struct xfs_mount *mp,
+ struct xfs_sb *sbp);
extern void xfs_sb_from_disk(struct xfs_sb *to, struct xfs_dsb *from);
extern void xfs_sb_to_disk(struct xfs_dsb *to, struct xfs_sb *from);
extern void xfs_sb_quota_from_disk(struct xfs_sb *sbp);
