xfs/273: check thoroughness of the mappings

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>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Zorro Lang <zlang@redhat.com>
Signed-off-by: Zorro Lang <zlang@kernel.org>

diff --git a/tests/xfs/273 b/tests/xfs/273
index d7fb80c4033429f4b810ac8b074596b02668fc43..9f11540a77603d313c359da7447db79851a7b9ef 100755 (executable)
--- a/tests/xfs/273
+++ b/tests/xfs/273
@@ -24,6 +24,8 @@ _require_scratch
 _require_populate_commands
 _require_xfs_io_command "fsmap"
 
+_fixed_by_kernel_commit XXXXXXXXXXXXXX "xfs: fix off-by-one error in fsmap"
+
 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);
+               n = $5 + 1;
+               if (n > next_daddr[devno])
+                      next_daddr[devno] = n;
+}
+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