From da61d5383e0f31d588825cf1c262a9cc8bdd96f5 Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <djwong@kernel.org>
Date: Thu, 20 Feb 2025 13:47:13 -0800
Subject: [PATCH] populate: adjust rtrmap calculations for rtgroups

Now that we've sharded the realtime volume and created per-group rmap
btrees, we need to adjust downward the size of rtrmapbt records since
the block counts are now 32-bit instead of 64-bit.

Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Zorro Lang <zlang@kernel.org>
---
 common/populate | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/populate b/common/populate
index ade3ace8..1741403f 100644
--- a/common/populate
+++ b/common/populate
@@ -463,7 +463,7 @@ _scratch_xfs_populate() {
 	is_rt="$(_xfs_get_rtextents "$SCRATCH_MNT")"
 	if [ $is_rmapbt -gt 0 ] && [ $is_rt -gt 0 ]; then
 		echo "+ rtrmapbt btree"
-		nr="$((blksz * 2 / 32))"
+		nr="$((blksz * 2 / 24))"
 		$XFS_IO_PROG -R -f -c 'truncate 0' "${SCRATCH_MNT}/RTRMAPBT"
 		__populate_create_file $((blksz * nr)) "${SCRATCH_MNT}/RTRMAPBT"
 	fi
-- 
2.39.5