linux-kernel - Re: [PATCH v2 0/1] block: Add test-iosched scheduler

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Message-ID: <CANfBPZ8C7YY760yx9ATi1_UJ_itL0N+fVdxx0Lim-55SgGjbng@mail.gmail.com>
Date:	Fri, 8 Jun 2012 16:23:21 +0530
From:	"S, Venkatraman" <svenkatr@...com>
To:	Maya Erez <merez@...eaurora.org>
Cc:	linux-mmc@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 0/1] block: Add test-iosched scheduler

On Thu, Jun 7, 2012 at 1:14 AM, Maya Erez <merez@...eaurora.org> wrote:
> The test scheduler allows testing a block device by dispatching
> specific requests according to the test case and declare PASS/FAIL
> according to the requests completion error code
>
I can't get the point. Isn't this possible purely from userspace using IOCTLs ?
Even otherwise, requiring to modify the scheduler for each test case
is definitely not scalable.

> Changes in v2:
>    - Export test-iosched functionality to allow definition of the block device
>      tests under the block device layer
>    - Add registration of block device tests utilities
>
> Maya Erez (1):
>  block: Add test-iosched scheduler
>
>  Documentation/block/test-iosched.txt |   39 ++
>  block/Kconfig.iosched                |    8 +
>  block/Makefile                       |    1 +
>  block/blk-core.c                     |    3 +-
>  block/test-iosched.c                 | 1025 ++++++++++++++++++++++++++++++++++
>  include/linux/test-iosched.h         |  218 +++++++
>  6 files changed, 1292 insertions(+), 2 deletions(-)
>  create mode 100644 Documentation/block/test-iosched.txt
>  create mode 100644 block/test-iosched.c
>  create mode 100644 include/linux/test-iosched.h
>
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