diff mbox series

xfs/273: check thoroughness of the fsmappings

Message ID 20241108174146.GA168062@frogsfrogsfrogs (mailing list archive)
State New
Headers show
Series xfs/273: check thoroughness of the fsmappings | expand

Commit Message

Darrick J. Wong Nov. 8, 2024, 5:41 p.m. UTC
From: Darrick J. Wong <djwong@kernel.org>

Enhance this test to make sure that there are no gaps in the fsmap
records, and (especially) that they we report all the way to the end of
the device.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
---
 tests/xfs/273 |   47 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)
diff mbox series

Patch

diff --git a/tests/xfs/273 b/tests/xfs/273
index d7fb80c4033429..ecfe5e7760a092 100755
--- a/tests/xfs/273
+++ b/tests/xfs/273
@@ -24,6 +24,8 @@  _require_scratch
 _require_populate_commands
 _require_xfs_io_command "fsmap"
 
+_fixed_by_git_commit kernel XXXXXXXXXXXXXX "xfs: fix off-by-one error in fsmap's end_daddr usage"
+
 rm -f "$seqres.full"
 
 echo "Format and mount"
@@ -37,6 +39,51 @@  cat $TEST_DIR/a $TEST_DIR/b >> $seqres.full
 
 diff -uw $TEST_DIR/a $TEST_DIR/b
 
+# Do we have mappings for every sector on the device?
+ddev_fsblocks=$(_xfs_statfs_field "$SCRATCH_MNT" geom.datablocks)
+rtdev_fsblocks=$(_xfs_statfs_field "$SCRATCH_MNT" geom.rtblocks)
+fsblock_bytes=$(_xfs_statfs_field "$SCRATCH_MNT" geom.bsize)
+
+ddev_daddrs=$((ddev_fsblocks * fsblock_bytes / 512))
+rtdev_daddrs=$((rtdev_fsblocks * fsblock_bytes / 512))
+
+ddev_devno=$(stat -c '%t:%T' $SCRATCH_DEV)
+if [ "$USE_EXTERNAL" = "yes" ] && [ -n "$SCRATCH_RTDEV" ]; then
+	rtdev_devno=$(stat -c '%t:%T' $SCRATCH_RTDEV)
+fi
+
+$XFS_IO_PROG -c 'fsmap -m -n 65536' $SCRATCH_MNT | awk -F ',' \
+	-v data_devno=$ddev_devno \
+	-v rt_devno=$rtdev_devno \
+	-v data_daddrs=$ddev_daddrs \
+	-v rt_daddrs=$rtdev_daddrs \
+'BEGIN {
+	next_daddr[data_devno] = 0;
+	next_daddr[rt_devno] = 0;
+}
+{
+	if ($1 == "EXT")
+		next
+	devno = sprintf("%x:%x", $2, $3);
+	if (devno != data_devno && devno != rt_devno)
+		next
+
+	if (next_daddr[devno] < $4)
+		printf("%sh: expected daddr %d, saw \"%s\"\n", devno,
+				next_daddr[devno], $0);
+		next = $5 + 1;
+		if (next > next_daddr[devno])
+		       next_daddr[devno] = next;
+}
+END {
+	if (data_daddrs != next_daddr[data_devno])
+		printf("%sh: fsmap stops at %d, expected %d\n",
+				data_devno, next_daddr[data_devno], data_daddrs);
+	if (rt_devno != "" && rt_daddrs != next_daddr[rt_devno])
+		printf("%sh: fsmap stops at %d, expected %d\n",
+				rt_devno, next_daddr[rt_devno], rt_daddrs);
+}'
+
 # success, all done
 status=0
 exit