[PATCH 1/3] xfs/161: adapt the test case for 64k FS blocksize

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

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

This test fails when xfs is formatted with 64k filesystem block size*.
It fails because the soft quota is not exceeded with the hardcoded 64k
pwrite, thereby, the grace time is not set. Even though soft quota is
set to 12k for uid1, it is rounded up to the nearest blocksize.

*** Report for user quotas on device /dev/sdb3
Block grace time: 7days; Inode grace time: 7days
                        Block limits                File limits
User            used    soft    hard  grace    used  soft  hard  grace
----------------------------------------------------------------------
0        --       0       0       0      0       3     0     0      0
1        --      64      64    1024      0       1     0     0      0
2        --      64       0       0      0       1     0     0      0

Adapt the pwrite to do more than 64k write when the FS blocksize is 64k.

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

* This happens even on a 64k pagesize system and it is not related to
  LBS effort.

Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
---
 tests/xfs/161 | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/tests/xfs/161 b/tests/xfs/161
index 486fa6ca..94290f18 100755
--- a/tests/xfs/161
+++ b/tests/xfs/161
@@ -38,9 +38,15 @@ _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")
+# Write more than one block to exceed the soft block quota limit.
+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
-- 
2.34.1