From: Jens Axboe <axboe@suse.de>
To: Andi Kleen <ak@suse.de>
Cc: Akinobu Mita <mita@miraclelinux.com>,
akpm@osdl.org, okuji@enbug.org, linux-kernel@vger.kernel.org
Subject: Re: [patch 4/5] fail-injection capability for disk IO
Date: Wed, 23 Aug 2006 14:10:28 +0200 [thread overview]
Message-ID: <20060823121028.GE5893@suse.de> (raw)
In-Reply-To: <p73lkpf64gh.fsf@verdi.suse.de>
On Wed, Aug 23 2006, Andi Kleen wrote:
> Akinobu Mita <mita@miraclelinux.com> writes:
> > * @bio: The bio describing the location in memory and on the device.
> > @@ -3077,6 +3093,9 @@ end_io:
> > if (unlikely(test_bit(QUEUE_FLAG_DEAD, &q->queue_flags)))
> > goto end_io;
> >
> > + if (should_fail(fail_make_request, bio->bi_size))
> > + goto end_io;
>
> AFAIK it is reasonably easy to write stacking block drivers.
> I think I would prefer a stackable driver instead of this hook.
But that makes it more tricky to setup a test, since you have to change
from using /dev/sda (for example) to /dev/stacked-driver.
--
Jens Axboe
next prev parent reply other threads:[~2006-08-23 12:08 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-23 11:32 [patch 0/5] RFC: fault-injection capabilities Akinobu Mita
2006-08-23 11:32 ` [patch 1/5] fail-injection library Akinobu Mita
2006-08-23 12:09 ` Andi Kleen
2006-08-23 11:32 ` [patch 2/5] fail-injection capability for kmalloc Akinobu Mita
2006-08-23 11:32 ` [patch 3/5] fail-injection capability for alloc_pages() Akinobu Mita
2006-08-23 11:32 ` [patch 4/5] fail-injection capability for disk IO Akinobu Mita
2006-08-23 12:03 ` Jens Axboe
2006-08-23 17:27 ` Andrew Morton
2006-08-23 18:01 ` Jens Axboe
2006-08-23 18:16 ` Ric Wheeler
2006-08-23 18:26 ` Jens Axboe
2006-08-23 18:22 ` Hans Reiser
2006-08-23 12:07 ` Andi Kleen
2006-08-23 12:10 ` Jens Axboe [this message]
2006-08-23 19:34 ` Mario 'BitKoenig' Holbe
2006-08-23 19:42 ` Ric Wheeler
2006-08-23 11:32 ` [patch 5/5] debugfs entries for configuration Akinobu Mita
2006-08-23 12:06 ` [patch 0/5] RFC: fault-injection capabilities Andi Kleen
2006-08-23 14:18 ` Alexey Dobriyan
2006-08-24 18:41 ` Valdis.Kletnieks
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