xfs: Skip repetitive warnings about mount options

Skip the warnings about mount option being deprecated if we are
remounting and deprecated option state is not changing.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=211605
Fix-suggested-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Pavel Reichl <preichl@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>

diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index afef244..19f58c9 100644 (file)
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1126,6 +1126,22 @@ suffix_kstrtoint(
        return ret;
 }
 
+static inline void
+xfs_fs_warn_deprecated(
+       struct fs_context       *fc,
+       struct fs_parameter     *param,
+       uint64_t                flag,
+       bool                    value)
+{
+       /* Don't print the warning if reconfiguring and current mount point
+        * already had the flag set
+        */
+       if ((fc->purpose & FS_CONTEXT_FOR_RECONFIGURE) &&
+                       !!(XFS_M(fc->root->d_sb)->m_flags & flag) == value)
+               return;
+       xfs_warn(fc->s_fs_info, "%s mount option is deprecated.", param->key);
+}
+
 /*
  * Set mount state from a mount option.
  *
@@ -1265,19 +1281,19 @@ xfs_fs_parse_param(
 #endif
        /* Following mount options will be removed in September 2025 */
        case Opt_ikeep:
-               xfs_warn(parsing_mp, "%s mount option is deprecated.", param->key);
+               xfs_fs_warn_deprecated(fc, param, XFS_MOUNT_IKEEP, true);
                parsing_mp->m_flags |= XFS_MOUNT_IKEEP;
                return 0;
        case Opt_noikeep:
-               xfs_warn(parsing_mp, "%s mount option is deprecated.", param->key);
+               xfs_fs_warn_deprecated(fc, param, XFS_MOUNT_IKEEP, false);
                parsing_mp->m_flags &= ~XFS_MOUNT_IKEEP;
                return 0;
        case Opt_attr2:
-               xfs_warn(parsing_mp, "%s mount option is deprecated.", param->key);
+               xfs_fs_warn_deprecated(fc, param, XFS_MOUNT_ATTR2, true);
                parsing_mp->m_flags |= XFS_MOUNT_ATTR2;
                return 0;
        case Opt_noattr2:
-               xfs_warn(parsing_mp, "%s mount option is deprecated.", param->key);
+               xfs_fs_warn_deprecated(fc, param, XFS_MOUNT_NOATTR2, true);
                parsing_mp->m_flags &= ~XFS_MOUNT_ATTR2;
                parsing_mp->m_flags |= XFS_MOUNT_NOATTR2;
                return 0;