btrfs/301: Make the test compatible with all the supported block sizes

With large block sizes like 64k the test failed with the
following logs:

     QA output created by 301
     basic accounting
    +subvol 256 mismatched usage 33947648 vs 4587520 (expected data 4194304 expected meta 393216 diff 29360128)
    +subvol 256 mismatched usage 168165376 vs 138805248 (expected data 138412032 expected meta 393216 diff 29360128)
    +subvol 256 mismatched usage 33947648 vs 4587520 (expected data 4194304 expected meta 393216 diff 29360128)
    +subvol 256 mismatched usage 33947648 vs 4587520 (expected data 4194304 expected meta 393216 diff 29360128)
     fallocate: Disk quota exceeded

The test creates nr_fill files each of size 8k. Now with 64k
block size, 8k sized files occupy more than the expected sizes (i.e, 8k)
due to internal fragmentation, since 1 file will occupy at least 1
fsblock. Fix this by making the file size 64k, which is aligned
with all the supported block sizes.

Reviewed-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Reported-by: Disha Goel <disgoel@linux.ibm.com>
Signed-off-by: Nirjhar Roy (IBM) <nirjhar.roy.lists@gmail.com>
Tested-by: Disha Goel <disgoel@linux.ibm.com>
Signed-off-by: Zorro Lang <zlang@kernel.org>

diff --git a/tests/btrfs/301 b/tests/btrfs/301
index 4c0ba119f6bea557b53930c9986dd6888d0b6f88..692091a30b7f496d42890acf9ffe35b690ef5531 100755 (executable)
--- a/tests/btrfs/301
+++ b/tests/btrfs/301
@@ -28,7 +28,7 @@ subv=$SCRATCH_MNT/subv
 nested=$SCRATCH_MNT/subv/nested
 snap=$SCRATCH_MNT/snap
 nr_fill=512
-fill_sz=$((8 * 1024))
+fill_sz=$((64 * 1024))
 total_fill=$(($nr_fill * $fill_sz))
 nodesize=$($BTRFS_UTIL_PROG inspect-internal dump-super $SCRATCH_DEV | \
                                        grep nodesize | $AWK_PROG '{print $2}')