From: Nick Piggin <nickpiggin@yahoo.com.au>
To: FabF <Fabian.Frederick@skynet.be>
Cc: axboe@suse.de, linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [2.6.6-mm4-ff1] I/O context isolation
Date: Fri, 21 May 2004 17:38:52 +1000 [thread overview]
Message-ID: <40ADB20C.8090204@yahoo.com.au> (raw)
In-Reply-To: <1085124268.8064.15.camel@bluerhyme.real3>
FabF wrote:
> Jens,
>
> Here's ff1 patchset to have generic I/O context.
> ff1 : Export io context operations from blkdev/ll_rw_blk (ok)
> ff2 : Make io_context generic plateform by importing IO stuff from
> as_io.
>
Can I just ask why you want as_io_context in generic code?
It is currently nicely hidden away in as-iosched.c where
nobody else needs to ever see it.
> AFAICS, cfq_queue for instance could disappear when using io_context
> but I think elv_data should remain elevator side....
> I don't want to go in the wild here so if you've got suggestions, don't
> hesitate ;)
>
cfq_queue is per-queue-per-process. io_context is just
per-process, so it isn't a trivial replacement.
Nick
next prev parent reply other threads:[~2004-05-22 0:06 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-21 7:24 [2.6.6-mm4-ff1] I/O context isolation FabF
2004-05-21 7:38 ` Nick Piggin [this message]
2004-05-21 7:46 ` FabF
2004-05-21 7:53 ` Jens Axboe
2004-05-21 8:18 ` FabF
2004-05-21 7:57 ` Nick Piggin
2004-05-21 8:05 ` FabF
2004-05-21 8:11 ` Jens Axboe
2004-05-21 7:51 ` Jens Axboe
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