[PATCH 11/13] populate: adjust rtrmap calculations for rtgroups

Darrick J. Wong
2025-02-19T01:06:31Z

From: Darrick J. Wong <djwong@kernel.org>

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>
---
common/populate | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/common/populate b/common/populate
index ade3ace886f4d4..1741403fafd9aa 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