[PATCH 2/2] xfs/161: adapt the test case for LBS filesystem

["Pankaj Raghav (Samsung)" <kernel@pankajraghav.com>]

From: Pankaj Raghav <p.raghav@samsung.com>

This test fails for >= 64k filesystem block size on a 4k PAGE_SIZE
system(see LBS efforts[1]). Adapt the blksz so that we create more than
one block for the testcase.

Cap the blksz to be at least 64k to retain the same behaviour as before
for smaller filesystem blocksizes.

[1] LBS effort: https://lore.kernel.org/lkml/20230915183848.1018717-1-kernel@pankajraghav.com/

Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
---
 tests/xfs/161 | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tests/xfs/161 b/tests/xfs/161
index 486fa6ca..f7b03f0e 100755
--- a/tests/xfs/161
+++ b/tests/xfs/161
@@ -38,9 +38,14 @@ _qmount_option "usrquota"
 _scratch_xfs_db -c 'version' -c 'sb 0' -c 'p' >> $seqres.full
 _scratch_mount >> $seqres.full
 
+min_blksz=65536
+file_blksz=$(_get_file_block_size "$SCRATCH_MNT")
+blksz=$(( 2 * $file_blksz))
+
+blksz=$(( blksz > min_blksz ? blksz : min_blksz ))
 # Force the block counters for uid 1 and 2 above zero
-_pwrite_byte 0x61 0 64k $SCRATCH_MNT/a >> $seqres.full
-_pwrite_byte 0x61 0 64k $SCRATCH_MNT/b >> $seqres.full
+_pwrite_byte 0x61 0 $blksz $SCRATCH_MNT/a >> $seqres.full
+_pwrite_byte 0x61 0 $blksz $SCRATCH_MNT/b >> $seqres.full
 sync
 chown 1 $SCRATCH_MNT/a
 chown 2 $SCRATCH_MNT/b
-- 
2.43.0