Merge tag 'metadir-6.13_2024-11-05' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into staging-merge

xfs: enable metadir [v5.5 09/10]

Actually enable this very large feature, which adds metadata directory
trees, allocation groups on the realtime volume, persistent quota
options, and quota for realtime files.

With a bit of luck, this should all go splendidly.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>

Author: cmaiolino

fs/xfs/libxfs/xfs_format.h

@@ -403,7 +403,8 @@ xfs_sb_has_ro_compat_feature(
 		 XFS_SB_FEAT_INCOMPAT_NEEDSREPAIR | \
 		 XFS_SB_FEAT_INCOMPAT_NREXT64 | \
 		 XFS_SB_FEAT_INCOMPAT_EXCHRANGE | \
-		 XFS_SB_FEAT_INCOMPAT_PARENT)
+		 XFS_SB_FEAT_INCOMPAT_PARENT | \
+		 XFS_SB_FEAT_INCOMPAT_METADIR)
 
 #define XFS_SB_FEAT_INCOMPAT_UNKNOWN	~XFS_SB_FEAT_INCOMPAT_ALL
 static inline bool

fs/xfs/scrub/agheader.c

@@ -147,13 +147,13 @@ xchk_superblock(
 	if (xfs_has_metadir(sc->mp)) {
 		if (sb->sb_metadirino != cpu_to_be64(mp->m_sb.sb_metadirino))
 			xchk_block_set_preen(sc, bp);
-	}
-
-	if (sb->sb_rbmino != cpu_to_be64(mp->m_sb.sb_rbmino))
-		xchk_block_set_preen(sc, bp);
+	} else {
+		if (sb->sb_rbmino != cpu_to_be64(mp->m_sb.sb_rbmino))
+			xchk_block_set_preen(sc, bp);
 
-	if (sb->sb_rsumino != cpu_to_be64(mp->m_sb.sb_rsumino))
-		xchk_block_set_preen(sc, bp);
+		if (sb->sb_rsumino != cpu_to_be64(mp->m_sb.sb_rsumino))
+			xchk_block_set_preen(sc, bp);
+	}
 
 	if (sb->sb_rextsize != cpu_to_be32(mp->m_sb.sb_rextsize))
 		xchk_block_set_corrupt(sc, bp);
@@ -229,11 +229,13 @@ xchk_superblock(
 	 * sb_icount, sb_ifree, sb_fdblocks, sb_frexents
 	 */
 
-	if (sb->sb_uquotino != cpu_to_be64(mp->m_sb.sb_uquotino))
-		xchk_block_set_preen(sc, bp);
+	if (!xfs_has_metadir(mp)) {
+		if (sb->sb_uquotino != cpu_to_be64(mp->m_sb.sb_uquotino))
+			xchk_block_set_preen(sc, bp);
 
-	if (sb->sb_gquotino != cpu_to_be64(mp->m_sb.sb_gquotino))
-		xchk_block_set_preen(sc, bp);
+		if (sb->sb_gquotino != cpu_to_be64(mp->m_sb.sb_gquotino))
+			xchk_block_set_preen(sc, bp);
+	}
 
 	/*
 	 * Skip the quota flags since repair will force quotacheck.
@@ -349,8 +351,10 @@ xchk_superblock(
 		if (sb->sb_spino_align != cpu_to_be32(mp->m_sb.sb_spino_align))
 			xchk_block_set_corrupt(sc, bp);
 
-		if (sb->sb_pquotino != cpu_to_be64(mp->m_sb.sb_pquotino))
-			xchk_block_set_preen(sc, bp);
+		if (!xfs_has_metadir(mp)) {
+			if (sb->sb_pquotino != cpu_to_be64(mp->m_sb.sb_pquotino))
+				xchk_block_set_preen(sc, bp);
+		}
 
 		/* Don't care about sb_lsn */
 	}
@@ -361,6 +365,14 @@ xchk_superblock(
 			xchk_block_set_corrupt(sc, bp);
 	}
 
+	if (xfs_has_metadir(mp)) {
+		if (sb->sb_rgcount != cpu_to_be32(mp->m_sb.sb_rgcount))
+			xchk_block_set_corrupt(sc, bp);
+
+		if (sb->sb_rgextents != cpu_to_be32(mp->m_sb.sb_rgextents))
+			xchk_block_set_corrupt(sc, bp);
+	}
+
 	/* Everything else must be zero. */
 	if (memchr_inv(sb + 1, 0,
 			BBTOB(bp->b_length) - sizeof(struct xfs_dsb)))