[PATCH 3/9] xfs: support inode btree blockcounts in online repair

["Darrick J. Wong" <darrick.wong@xxxxxxxxxx>]

From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>

Source kernel commit: 11f744234f052922db4ed77dad35862b3d3164cf

Add the necessary bits to the online repair code to support logging the
inode btree counters when rebuilding the btrees, and to support fixing
the counters when rebuilding the AGI.

Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx>
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
 libxfs/xfs_ialloc_btree.c |   16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)


diff --git a/libxfs/xfs_ialloc_btree.c b/libxfs/xfs_ialloc_btree.c
index 1edf69ffa96b..953417151820 100644
--- a/libxfs/xfs_ialloc_btree.c
+++ b/libxfs/xfs_ialloc_btree.c
@@ -500,19 +500,29 @@ xfs_inobt_commit_staged_btree(
 {
 	struct xfs_agi		*agi = agbp->b_addr;
 	struct xbtree_afakeroot	*afake = cur->bc_ag.afake;
+	int			fields;
 
 	ASSERT(cur->bc_flags & XFS_BTREE_STAGING);
 
 	if (cur->bc_btnum == XFS_BTNUM_INO) {
+		fields = XFS_AGI_ROOT | XFS_AGI_LEVEL;
 		agi->agi_root = cpu_to_be32(afake->af_root);
 		agi->agi_level = cpu_to_be32(afake->af_levels);
-		xfs_ialloc_log_agi(tp, agbp, XFS_AGI_ROOT | XFS_AGI_LEVEL);
+		if (xfs_sb_version_hasinobtcounts(&cur->bc_mp->m_sb)) {
+			agi->agi_iblocks = cpu_to_be32(afake->af_blocks);
+			fields |= XFS_AGI_IBLOCKS;
+		}
+		xfs_ialloc_log_agi(tp, agbp, fields);
 		xfs_btree_commit_afakeroot(cur, tp, agbp, &xfs_inobt_ops);
 	} else {
+		fields = XFS_AGI_FREE_ROOT | XFS_AGI_FREE_LEVEL;
 		agi->agi_free_root = cpu_to_be32(afake->af_root);
 		agi->agi_free_level = cpu_to_be32(afake->af_levels);
-		xfs_ialloc_log_agi(tp, agbp, XFS_AGI_FREE_ROOT |
-					     XFS_AGI_FREE_LEVEL);
+		if (xfs_sb_version_hasinobtcounts(&cur->bc_mp->m_sb)) {
+			agi->agi_fblocks = cpu_to_be32(afake->af_blocks);
+			fields |= XFS_AGI_IBLOCKS;
+		}
+		xfs_ialloc_log_agi(tp, agbp, fields);
 		xfs_btree_commit_afakeroot(cur, tp, agbp, &xfs_finobt_ops);
 	}
 }