On Thu, Nov 15, 2018 at 12:00:17PM +0800, Ming Lei wrote:
> This test covers the following two issues:
>
> 1) discard sector need to be aligned with logical block size
>
> 2) make sure 'sector_t' instead of 'unsigned int' is used when comparing
> with discard sector size
>
> Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx>
> ---
> tests/block/025 | 37 +++++++++++++++++++++++++++++++++++++
> tests/block/025.out | 2 ++
> 2 files changed, 39 insertions(+)
> create mode 100755 tests/block/025
> create mode 100644 tests/block/025.out
>
> diff --git a/tests/block/025 b/tests/block/025
> new file mode 100755
> index 000000000000..32b632431793
> --- /dev/null
> +++ b/tests/block/025
> @@ -0,0 +1,37 @@
> +#!/bin/bash
> +# SPDX-License-Identifier: GPL-3.0+
> +# Copyright (C) 2018 Ming Lei <ming.lei@xxxxxxxxxx>
> +#
> +# Check two corener cases of BLKDISCARD.
> +#
> +# 1) test if discard bio's sector is algined with logical size, fixed by
> +# 1adfc5e4136f ("block: make sure discard bio is aligned with logical block size")
Hm, I'm not seeing how this test case tests this commit. Aren't 2049G
and 512M both aligned to 4096 bytes?
> +# 2) test 32 bit overflow when comparing discard sector size. Fixed by
> +# 4800bf7bc8c72 ("block: fix 32 bit overflow in __blkdev_issue_discard()")
> +
> +. tests/block/rc
> +. common/scsi_debug
> +
> +DESCRIPTION="check sector alignment and sector size overflow of BLKDISCARD"
> +
> +requires() {
> + _have_scsi_debug
> +}
> +
> +test() {
> + echo "Running ${TEST_NAME}"
> +
> + rm -f "$FULL"
> +
> + # Create virtual device with unmap_zeroes_data support
> + if ! _init_scsi_debug virtual_gb=2049 sector_size=4096 lbpws10=1 dev_size_mb=512; then
> + return 1
> + fi
> +
> + local dev="/dev/${SCSI_DEBUG_DEVICES[0]}"
> + blkdiscard "$dev"
> +
> + _exit_scsi_debug
> +
> + echo "Test complete"
> +}
> diff --git a/tests/block/025.out b/tests/block/025.out
> new file mode 100644
> index 000000000000..fd9a6d5f70de
> --- /dev/null
> +++ b/tests/block/025.out
> @@ -0,0 +1,2 @@
> +Running block/025
> +Test complete
> --
> 2.9.5
>
