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filter: Filter xfs_io and od's output in units of FS block size

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The helpers introduced in this commit will be used to make btrfs tests that
assume 4k as the block size to work on non-4k blocksized filesystem instances
as well.

Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Chandan Rajendra
2015-12-21 18:01:29 +11:00
committed by Dave Chinner
parent 2274eb58d8
commit dedf2c79f5
1 changed files with 45 additions and 0 deletions
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common/filter
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@@ -229,6 +229,38 @@ _filter_xfs_io_unique()
common_line_filter | _filter_xfs_io
}
_filter_xfs_io_units_modified()
{
UNIT=$1
UNIT_SIZE=$2
$AWK_PROG -v unit="$UNIT" -v unit_size=$UNIT_SIZE '
/wrote/ {
split($2, bytes, "/")
bytes_written = strtonum(bytes[1])
offset = strtonum($NF)
unit_start = offset / unit_size
unit_start = int(unit_start)
unit_end = (offset + bytes_written - 1) / unit_size
unit_end = int(unit_end)
printf("%ss modified: [%d - %d]\n", unit, unit_start, unit_end)
next
}
'
}
_filter_xfs_io_blocks_modified()
{
BLOCK_SIZE=$(get_block_size $SCRATCH_MNT)
_filter_xfs_io_units_modified "Block" $BLOCK_SIZE
}
_filter_test_dir()
{
sed -e "s,$TEST_DEV,TEST_DEV,g" -e "s,$TEST_DIR,TEST_DIR,g"
@@ -323,5 +355,18 @@ _filter_ro_mount() {
-e "s/mount: cannot mount block device/mount: cannot mount/g"
}
_filter_od()
{
BLOCK_SIZE=$(get_block_size $SCRATCH_MNT)
$AWK_PROG -v block_size=$BLOCK_SIZE '
/^[0-9]+/ {
offset = strtonum("0"$1);
$1 = sprintf("%o", offset / block_size);
print $0;
}
/\*/
'
}
# make sure this script returns success
/bin/true