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| author | Eric Blake | 2017-10-12 05:47:20 +0200 |
|---|---|---|
| committer | Kevin Wolf | 2017-10-26 14:45:57 +0200 |
| commit | f0a9c18f9e72ab66d3c57c5c3a43137deb534076 (patch) | |
| tree | e7fbc9eb3ddac92c4751ae3719a4a102647614f8 /tests/qemu-iotests/177 | |
| parent | qcow2: Reduce is_zero() rounding (diff) | |
| download | qemu-f0a9c18f9e72ab66d3c57c5c3a43137deb534076.tar.gz qemu-f0a9c18f9e72ab66d3c57c5c3a43137deb534076.tar.xz qemu-f0a9c18f9e72ab66d3c57c5c3a43137deb534076.zip | |
qemu-io: Relax 'alloc' now that block-status doesn't assert
Previously, the alloc command required that input parameters be
sector-aligned and clamped to 32 bits, because the underlying
bdrv_is_allocated used a 32-bit parameter and asserted aligned
inputs. But now that we have fixed block status to report a
64-bit bytes value, and to properly round requests on behalf of
guests, we can pass any values, and can use qemu-io to add
coverage that our rounding is correct regardless of the guest
alignment constraints.
Update iotest 177 to intentionally probe block status at
unaligned boundaries as well as with a bytes value that does not
map to 32-bit sectors, which also required tweaking the image
prep to leave an unallocated portion to the image under test.
Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'tests/qemu-iotests/177')
| -rwxr-xr-x | tests/qemu-iotests/177 | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/tests/qemu-iotests/177 b/tests/qemu-iotests/177 index f8ed8fb86b..28990977f1 100755 --- a/tests/qemu-iotests/177 +++ b/tests/qemu-iotests/177 @@ -51,7 +51,7 @@ echo "== setting up files ==" TEST_IMG="$TEST_IMG.base" _make_test_img $size $QEMU_IO -c "write -P 11 0 $size" "$TEST_IMG.base" | _filter_qemu_io _make_test_img -b "$TEST_IMG.base" -$QEMU_IO -c "write -P 22 0 $size" "$TEST_IMG" | _filter_qemu_io +$QEMU_IO -c "write -P 22 0 110M" "$TEST_IMG" | _filter_qemu_io # Limited to 64k max-transfer echo @@ -82,6 +82,13 @@ $QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ -c "discard 80000001 30M" | _filter_qemu_io echo +echo "== block status smaller than alignment ==" +limits=align=4k +$QEMU_IO -c "open -o $options,$limits blkdebug::$TEST_IMG" \ + -c "alloc 1 1" -c "alloc 0x6dffff0 1000" -c "alloc 127m 5P" \ + -c map | _filter_qemu_io + +echo echo "== verify image content ==" function verify_io() @@ -103,7 +110,8 @@ function verify_io() echo read -P 0 32M 32M echo read -P 22 64M 13M echo read -P $discarded 77M 29M - echo read -P 22 106M 22M + echo read -P 22 106M 4M + echo read -P 11 110M 18M } verify_io | $QEMU_IO -r "$TEST_IMG" | _filter_qemu_io |