Merge tag 'xfs-6.13-fixes_2024-12-12' of https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux into next-rc

xfs: bug fixes for 6.13 [01/12]

Bug fixes for 6.13.

This has been running on the djcloud for months with no problems.  Enjoy!

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>

Author: cmaiolino

fs/xfs/libxfs/xfs_btree.c

@@ -3557,14 +3557,31 @@ xfs_btree_insrec(
 	xfs_btree_log_block(cur, bp, XFS_BB_NUMRECS);
 
 	/*
-	 * If we just inserted into a new tree block, we have to
-	 * recalculate nkey here because nkey is out of date.
+	 * Update btree keys to reflect the newly added record or keyptr.
+	 * There are three cases here to be aware of.  Normally, all we have to
+	 * do is walk towards the root, updating keys as necessary.
 	 *
-	 * Otherwise we're just updating an existing block (having shoved
-	 * some records into the new tree block), so use the regular key
-	 * update mechanism.
+	 * If the caller had us target a full block for the insertion, we dealt
+	 * with that by calling the _make_block_unfull function.  If the
+	 * "make unfull" function splits the block, it'll hand us back the key
+	 * and pointer of the new block.  We haven't yet added the new block to
+	 * the next level up, so if we decide to add the new record to the new
+	 * block (bp->b_bn != old_bn), we have to update the caller's pointer
+	 * so that the caller adds the new block with the correct key.
+	 *
+	 * However, there is a third possibility-- if the selected block is the
+	 * root block of an inode-rooted btree and cannot be expanded further,
+	 * the "make unfull" function moves the root block contents to a new
+	 * block and updates the root block to point to the new block.  In this
+	 * case, no block pointer is passed back because the block has already
+	 * been added to the btree.  In this case, we need to use the regular
+	 * key update function, just like the first case.  This is critical for
+	 * overlapping btrees, because the high key must be updated to reflect
+	 * the entire tree, not just the subtree accessible through the first
+	 * child of the root (which is now two levels down from the root).
 	 */
-	if (bp && xfs_buf_daddr(bp) != old_bn) {
+	if (!xfs_btree_ptr_is_null(cur, &nptr) &&
+	    bp && xfs_buf_daddr(bp) != old_bn) {
 		xfs_btree_get_keys(cur, block, lkey);
 	} else if (xfs_btree_needs_key_update(cur, optr)) {
 		error = xfs_btree_update_keys(cur, level);
@@ -5144,7 +5161,7 @@ xfs_btree_count_blocks_helper(
 	int			level,
 	void			*data)
 {
-	xfs_extlen_t		*blocks = data;
+	xfs_filblks_t		*blocks = data;
 	(*blocks)++;
 
 	return 0;
@@ -5154,7 +5171,7 @@ xfs_btree_count_blocks_helper(
 int
 xfs_btree_count_blocks(
 	struct xfs_btree_cur	*cur,
-	xfs_extlen_t		*blocks)
+	xfs_filblks_t		*blocks)
 {
 	*blocks = 0;
 	return xfs_btree_visit_blocks(cur, xfs_btree_count_blocks_helper,

fs/xfs/libxfs/xfs_btree.h

@@ -484,7 +484,7 @@ typedef int (*xfs_btree_visit_blocks_fn)(struct xfs_btree_cur *cur, int level,
 int xfs_btree_visit_blocks(struct xfs_btree_cur *cur,
 		xfs_btree_visit_blocks_fn fn, unsigned int flags, void *data);
 
-int xfs_btree_count_blocks(struct xfs_btree_cur *cur, xfs_extlen_t *blocks);
+int xfs_btree_count_blocks(struct xfs_btree_cur *cur, xfs_filblks_t *blocks);
 
 union xfs_btree_rec *xfs_btree_rec_addr(struct xfs_btree_cur *cur, int n,
 		struct xfs_btree_block *block);

fs/xfs/libxfs/xfs_ialloc_btree.c

@@ -744,16 +744,18 @@ xfs_finobt_count_blocks(
 {
 	struct xfs_buf		*agbp = NULL;
 	struct xfs_btree_cur	*cur;
+	xfs_filblks_t		blocks;
 	int			error;
 
 	error = xfs_ialloc_read_agi(pag, tp, 0, &agbp);
 	if (error)
 		return error;
 
 	cur = xfs_finobt_init_cursor(pag, tp, agbp);
-	error = xfs_btree_count_blocks(cur, tree_blocks);
+	error = xfs_btree_count_blocks(cur, &blocks);
 	xfs_btree_del_cursor(cur, error);
 	xfs_trans_brelse(tp, agbp);
+	*tree_blocks = blocks;
 
 	return error;
 }

fs/xfs/libxfs/xfs_rtgroup.c

@@ -496,7 +496,7 @@ xfs_rtginode_create(
 
 	error = xfs_metadir_create(&upd, S_IFREG);
 	if (error)
-		return error;
+		goto out_cancel;
 
 	xfs_rtginode_lockdep_setup(upd.ip, rtg_rgno(rtg), type);
 

fs/xfs/libxfs/xfs_sb.c

@@ -494,12 +494,13 @@ xfs_validate_sb_common(
 				return -EINVAL;
 			}
 
-			if (!sbp->sb_spino_align ||
-			    sbp->sb_spino_align > sbp->sb_inoalignmt ||
-			    (sbp->sb_inoalignmt % sbp->sb_spino_align) != 0) {
+			if (sbp->sb_spino_align &&
+			    (sbp->sb_spino_align > sbp->sb_inoalignmt ||
+			     (sbp->sb_inoalignmt % sbp->sb_spino_align) != 0)) {
 				xfs_warn(mp,
-				"Sparse inode alignment (%u) is invalid.",
-					sbp->sb_spino_align);
+"Sparse inode alignment (%u) is invalid, must be integer factor of (%u).",
+					sbp->sb_spino_align,
+					sbp->sb_inoalignmt);
 				return -EINVAL;
 			}
 		} else if (sbp->sb_spino_align) {

fs/xfs/libxfs/xfs_symlink_remote.c

@@ -92,8 +92,10 @@ xfs_symlink_verify(
 	struct xfs_mount	*mp = bp->b_mount;
 	struct xfs_dsymlink_hdr	*dsl = bp->b_addr;
 
+	/* no verification of non-crc buffers */
 	if (!xfs_has_crc(mp))
-		return __this_address;
+		return NULL;
+
 	if (!xfs_verify_magic(bp, dsl->sl_magic))
 		return __this_address;
 	if (!uuid_equal(&dsl->sl_uuid, &mp->m_sb.sb_meta_uuid))

fs/xfs/scrub/agheader.c

@@ -59,6 +59,32 @@ xchk_superblock_xref(
 	/* scrub teardown will take care of sc->sa for us */
 }
 
+/*
+ * Calculate the ondisk superblock size in bytes given the feature set of the
+ * mounted filesystem (aka the primary sb).  This is subtlely different from
+ * the logic in xfs_repair, which computes the size of a secondary sb given the
+ * featureset listed in the secondary sb.
+ */
+STATIC size_t
+xchk_superblock_ondisk_size(
+	struct xfs_mount	*mp)
+{
+	if (xfs_has_metadir(mp))
+		return offsetofend(struct xfs_dsb, sb_pad);
+	if (xfs_has_metauuid(mp))
+		return offsetofend(struct xfs_dsb, sb_meta_uuid);
+	if (xfs_has_crc(mp))
+		return offsetofend(struct xfs_dsb, sb_lsn);
+	if (xfs_sb_version_hasmorebits(&mp->m_sb))
+		return offsetofend(struct xfs_dsb, sb_bad_features2);
+	if (xfs_has_logv2(mp))
+		return offsetofend(struct xfs_dsb, sb_logsunit);
+	if (xfs_has_sector(mp))
+		return offsetofend(struct xfs_dsb, sb_logsectsize);
+	/* only support dirv2 or more recent */
+	return offsetofend(struct xfs_dsb, sb_dirblklog);
+}
+
 /*
  * Scrub the filesystem superblock.
  *
@@ -75,6 +101,7 @@ xchk_superblock(
 	struct xfs_buf		*bp;
 	struct xfs_dsb		*sb;
 	struct xfs_perag	*pag;
+	size_t			sblen;
 	xfs_agnumber_t		agno;
 	uint32_t		v2_ok;
 	__be32			features_mask;
@@ -145,8 +172,11 @@ xchk_superblock(
 		xchk_block_set_preen(sc, bp);
 
 	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(0))
+			xchk_block_set_corrupt(sc, bp);
+
+		if (sb->sb_rsumino != cpu_to_be64(0))
+			xchk_block_set_corrupt(sc, bp);
 	} else {
 		if (sb->sb_rbmino != cpu_to_be64(mp->m_sb.sb_rbmino))
 			xchk_block_set_preen(sc, bp);
@@ -229,7 +259,13 @@ xchk_superblock(
 	 * sb_icount, sb_ifree, sb_fdblocks, sb_frexents
 	 */
 
-	if (!xfs_has_metadir(mp)) {
+	if (xfs_has_metadir(mp)) {
+		if (sb->sb_uquotino != cpu_to_be64(0))
+			xchk_block_set_corrupt(sc, bp);
+
+		if (sb->sb_gquotino != cpu_to_be64(0))
+			xchk_block_set_preen(sc, bp);
+	} else {
 		if (sb->sb_uquotino != cpu_to_be64(mp->m_sb.sb_uquotino))
 			xchk_block_set_preen(sc, bp);
 
@@ -281,15 +317,8 @@ xchk_superblock(
 		if (!!(sb->sb_features2 & cpu_to_be32(~v2_ok)))
 			xchk_block_set_corrupt(sc, bp);
 
-		if (xfs_has_metadir(mp)) {
-			if (sb->sb_rgblklog != mp->m_sb.sb_rgblklog)
-				xchk_block_set_corrupt(sc, bp);
-			if (memchr_inv(sb->sb_pad, 0, sizeof(sb->sb_pad)))
-				xchk_block_set_preen(sc, bp);
-		} else {
-			if (sb->sb_features2 != sb->sb_bad_features2)
-				xchk_block_set_preen(sc, bp);
-		}
+		if (sb->sb_features2 != sb->sb_bad_features2)
+			xchk_block_set_preen(sc, bp);
 	}
 
 	/* Check sb_features2 flags that are set at mkfs time. */
@@ -351,7 +380,10 @@ xchk_superblock(
 		if (sb->sb_spino_align != cpu_to_be32(mp->m_sb.sb_spino_align))
 			xchk_block_set_corrupt(sc, bp);
 
-		if (!xfs_has_metadir(mp)) {
+		if (xfs_has_metadir(mp)) {
+			if (sb->sb_pquotino != cpu_to_be64(0))
+				xchk_block_set_corrupt(sc, bp);
+		} else {
 			if (sb->sb_pquotino != cpu_to_be64(mp->m_sb.sb_pquotino))
 				xchk_block_set_preen(sc, bp);
 		}
@@ -366,16 +398,25 @@ xchk_superblock(
 	}
 
 	if (xfs_has_metadir(mp)) {
+		if (sb->sb_metadirino != cpu_to_be64(mp->m_sb.sb_metadirino))
+			xchk_block_set_preen(sc, bp);
+
 		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);
+
+		if (sb->sb_rgblklog != mp->m_sb.sb_rgblklog)
+			xchk_block_set_corrupt(sc, bp);
+
+		if (memchr_inv(sb->sb_pad, 0, sizeof(sb->sb_pad)))
+			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)))
+	sblen = xchk_superblock_ondisk_size(mp);
+	if (memchr_inv((char *)sb + sblen, 0, BBTOB(bp->b_length) - sblen))
 		xchk_block_set_corrupt(sc, bp);
 
 	xchk_superblock_xref(sc, bp);
@@ -458,7 +499,7 @@ xchk_agf_xref_btreeblks(
 {
 	struct xfs_agf		*agf = sc->sa.agf_bp->b_addr;
 	struct xfs_mount	*mp = sc->mp;
-	xfs_agblock_t		blocks;
+	xfs_filblks_t		blocks;
 	xfs_agblock_t		btreeblks;
 	int			error;
 
@@ -507,7 +548,7 @@ xchk_agf_xref_refcblks(
 	struct xfs_scrub	*sc)
 {
 	struct xfs_agf		*agf = sc->sa.agf_bp->b_addr;
-	xfs_agblock_t		blocks;
+	xfs_filblks_t		blocks;
 	int			error;
 
 	if (!sc->sa.refc_cur)
@@ -840,7 +881,7 @@ xchk_agi_xref_fiblocks(
 	struct xfs_scrub	*sc)
 {
 	struct xfs_agi		*agi = sc->sa.agi_bp->b_addr;
-	xfs_agblock_t		blocks;
+	xfs_filblks_t		blocks;
 	int			error = 0;
 
 	if (!xfs_has_inobtcounts(sc->mp))

fs/xfs/scrub/agheader_repair.c

@@ -256,7 +256,7 @@ xrep_agf_calc_from_btrees(
 	struct xfs_agf		*agf = agf_bp->b_addr;
 	struct xfs_mount	*mp = sc->mp;
 	xfs_agblock_t		btreeblks;
-	xfs_agblock_t		blocks;
+	xfs_filblks_t		blocks;
 	int			error;
 
 	/* Update the AGF counters from the bnobt. */
@@ -946,7 +946,7 @@ xrep_agi_calc_from_btrees(
 	if (error)
 		goto err;
 	if (xfs_has_inobtcounts(mp)) {
-		xfs_agblock_t	blocks;
+		xfs_filblks_t	blocks;
 
 		error = xfs_btree_count_blocks(cur, &blocks);
 		if (error)
@@ -959,7 +959,7 @@ xrep_agi_calc_from_btrees(
 	agi->agi_freecount = cpu_to_be32(freecount);
 
 	if (xfs_has_finobt(mp) && xfs_has_inobtcounts(mp)) {
-		xfs_agblock_t	blocks;
+		xfs_filblks_t	blocks;
 
 		cur = xfs_finobt_init_cursor(sc->sa.pag, sc->tp, agi_bp);
 		error = xfs_btree_count_blocks(cur, &blocks);

fs/xfs/scrub/fscounters.c

@@ -261,7 +261,7 @@ xchk_fscount_btreeblks(
 	struct xchk_fscounters	*fsc,
 	xfs_agnumber_t		agno)
 {
-	xfs_extlen_t		blocks;
+	xfs_filblks_t		blocks;
 	int			error;
 
 	error = xchk_ag_init_existing(sc, agno, &sc->sa);