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From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Jens Axboe <axboe@suse.de>
Cc: "Chen, Kenneth W" <kenneth.w.chen@intel.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [patch] use cheaper elv_queue_empty when unplug a device
Date: Fri, 08 Apr 2005 19:55:01 +1000	[thread overview]
Message-ID: <425654F5.70707@yahoo.com.au> (raw)
In-Reply-To: <20050408094557.GG22988@suse.de>

Jens Axboe wrote:
> On Wed, Mar 30 2005, Nick Piggin wrote:

>>So Kenneth if you could look into this one as well, to see if
>>it is worthwhile, that would be great.
> 
> 
> For that to work, you have to change the get_io_context() allocation to
> be GFP_ATOMIC.
> 

Yes of course, thanks for picking that up.

I guess this isn't a problem, as io contexts should be allocated
comparatively rarely. It would be possible to move it out of the
lock though if we really want to.

Thanks.

-- 
SUSE Labs, Novell Inc.


  reply	other threads:[~2005-04-08  9:55 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-03-29  2:53 [patch] use cheaper elv_queue_empty when unplug a device Chen, Kenneth W
2005-03-29  8:06 ` Jens Axboe
2005-03-29  9:19   ` Nick Piggin
2005-03-29  9:21     ` Nick Piggin
2005-03-29  9:28     ` Jens Axboe
2005-03-29  9:50       ` Nick Piggin
2005-03-29 10:06       ` Nick Piggin
2005-03-30  0:57         ` Nick Piggin
2005-03-30  8:11           ` Jens Axboe
2005-04-08  9:45           ` Jens Axboe
2005-04-08  9:55             ` Nick Piggin [this message]
2005-04-08 10:02               ` Jens Axboe
2005-04-08 10:22                 ` Nick Piggin
2005-03-29 10:10     ` Arjan van de Ven
2005-03-29 10:19       ` Jens Axboe
2005-03-29 10:23       ` Nick Piggin
2005-03-29 13:15     ` Jens Axboe
2005-03-30  0:07       ` Nick Piggin
2005-03-29 19:02     ` Chen, Kenneth W

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