The helpers 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 <chan...@linux.vnet.ibm.com>
---
common/filter | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
common/rc | 5 +++++
2 files changed, 57 insertions(+)
diff --git a/common/filter b/common/filter
index af456c9..faa6f82 100644
--- a/common/filter
+++ b/common/filter
@@ -229,6 +229,45 @@ _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" $BLOCK_SIZE
+}
+
+_filter_xfs_io_pages_modified()
+{
+ PAGE_SIZE=$(get_page_size)
+
+ _filter_xfs_io_units_modified "Page" $PAGE_SIZE
+}
+
_filter_test_dir()
{
sed -e "s,$TEST_DEV,TEST_DEV,g" -e "s,$TEST_DIR,TEST_DIR,g"
@@ -323,5 +362,18 @@ _filter_ro_mount() {
-e "s/mount: cannot mount block device/mount: cannot mount/g"
}
+_filter_od()
+{
+ BLOCK_SIZE=$(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
diff --git a/common/rc b/common/rc
index 4c2f42c..acda6cb 100644
--- a/common/rc
+++ b/common/rc
@@ -3151,6 +3151,11 @@ get_block_size()
echo `stat -f -c %S $1`
}
+get_page_size()
+{
+ echo $(getconf PAGE_SIZE)
+}
+
init_rc
################################################################################
--
2.1.0
--
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