From: Ming Lei <ming.lei@redhat.com>
To: Caleb Sander Mateos <csander@purestorage.com>
Cc: Shuah Khan <shuah@kernel.org>,
linux-block@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 7/8] selftests: ublk: add support for user copy to kublk
Date: Fri, 12 Dec 2025 19:16:03 +0800 [thread overview]
Message-ID: <aTv5cz_B1IdLpI78@fedora> (raw)
In-Reply-To: <20251212051658.1618543-8-csander@purestorage.com>
On Thu, Dec 11, 2025 at 10:16:57PM -0700, Caleb Sander Mateos wrote:
> The ublk selftests mock ublk server kublk supports every data copy mode
> except user copy. Add support for user copy to kublk, enabled via the
> --user_copy (-u) command line argument. On writes, issue pread() calls
> to copy the write data into the ublk_io's buffer before dispatching the
> write to the target implementation. On reads, issue pwrite() calls to
> copy read data from the ublk_io's buffer before committing the request.
> Copy in 2 KB chunks to provide some coverage of the offseting logic.
>
> Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Thanks,
Ming
next prev parent reply other threads:[~2025-12-12 11:16 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-12 5:16 [PATCH v2 0/8] selftests: ublk: add user copy test cases Caleb Sander Mateos
2025-12-12 5:16 ` [PATCH v2 1/8] selftests: ublk: correct last_rw map type in seq_io.bt Caleb Sander Mateos
2025-12-12 5:16 ` [PATCH v2 2/8] selftests: ublk: remove unused ios map " Caleb Sander Mateos
2025-12-12 5:16 ` [PATCH v2 3/8] selftests: ublk: fix fio arguments in run_io_and_recover() Caleb Sander Mateos
2025-12-12 5:16 ` [PATCH v2 4/8] selftests: ublk: use auto_zc for PER_IO_DAEMON tests in stress_04 Caleb Sander Mateos
2025-12-12 10:21 ` Ming Lei
2025-12-12 10:56 ` Ming Lei
2025-12-12 16:50 ` Caleb Sander Mateos
2025-12-12 5:16 ` [PATCH v2 5/8] selftests: ublk: don't share backing files between ublk servers Caleb Sander Mateos
2025-12-12 5:16 ` [PATCH v2 6/8] selftests: ublk: forbid multiple data copy modes Caleb Sander Mateos
2025-12-12 11:09 ` Ming Lei
2025-12-12 11:13 ` Ming Lei
2025-12-12 5:16 ` [PATCH v2 7/8] selftests: ublk: add support for user copy to kublk Caleb Sander Mateos
2025-12-12 11:16 ` Ming Lei [this message]
2025-12-12 5:16 ` [PATCH v2 8/8] selftests: ublk: add user copy test cases Caleb Sander Mateos
2025-12-12 11:17 ` Ming Lei
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