[PATCH 084/111] xfs: factor out a __xfs_btree_check_lblock_hdr helper

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From: Christoph Hellwig <hch@xxxxxx>

Source kernel commit: 79e72304dcba471e5c0dea2f3c67fe1a0558c140

This will allow sharing code with the in-memory block checking helper.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
Reviewed-by: Carlos Maiolino <cmaiolino@xxxxxxxxxx>
---
 libxfs/xfs_btree.c |   30 +++++++++++++++++++++++-------
 1 file changed, 23 insertions(+), 7 deletions(-)


diff --git a/libxfs/xfs_btree.c b/libxfs/xfs_btree.c
index e69b88b90..6b1839243 100644
--- a/libxfs/xfs_btree.c
+++ b/libxfs/xfs_btree.c
@@ -91,20 +91,14 @@ xfs_btree_check_agblock_siblings(
 	return NULL;
 }
 
-/*
- * Check a long btree block header.  Return the address of the failing check,
- * or NULL if everything is ok.
- */
 static xfs_failaddr_t
-__xfs_btree_check_fsblock(
+__xfs_btree_check_lblock_hdr(
 	struct xfs_btree_cur	*cur,
 	struct xfs_btree_block	*block,
 	int			level,
 	struct xfs_buf		*bp)
 {
 	struct xfs_mount	*mp = cur->bc_mp;
-	xfs_failaddr_t		fa;
-	xfs_fsblock_t		fsb;
 
 	if (xfs_has_crc(mp)) {
 		if (!uuid_equal(&block->bb_u.l.bb_uuid, &mp->m_sb.sb_meta_uuid))
@@ -124,6 +118,28 @@ __xfs_btree_check_fsblock(
 	    cur->bc_ops->get_maxrecs(cur, level))
 		return __this_address;
 
+	return NULL;
+}
+
+/*
+ * Check a long btree block header.  Return the address of the failing check,
+ * or NULL if everything is ok.
+ */
+static xfs_failaddr_t
+__xfs_btree_check_fsblock(
+	struct xfs_btree_cur	*cur,
+	struct xfs_btree_block	*block,
+	int			level,
+	struct xfs_buf		*bp)
+{
+	struct xfs_mount	*mp = cur->bc_mp;
+	xfs_failaddr_t		fa;
+	xfs_fsblock_t		fsb;
+
+	fa = __xfs_btree_check_lblock_hdr(cur, block, level, bp);
+	if (fa)
+		return fa;
+
 	/*
 	 * For inode-rooted btrees, the root block sits in the inode fork.  In
 	 * that case bp is NULL, and the block must not have any siblings.





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