linux-kernel - Re: [patch 52/52] fs: icache less I

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Message-ID: <20100630101354.GK24712@dastard>
Date:	Wed, 30 Jun 2010 20:13:54 +1000
From:	Dave Chinner <david@...morbit.com>
To:	npiggin@...e.de
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	John Stultz <johnstul@...ibm.com>,
	Frank Mayhar <fmayhar@...gle.com>
Subject: Re: [patch 52/52] fs: icache less I_FREEING time

On Thu, Jun 24, 2010 at 01:03:04PM +1000, npiggin@...e.de wrote:
> Problem with inode reclaim is that it puts inodes into I_FREEING state
> and then continues to gather more, during which it may iput,
> invalidate_mapping_pages, be preempted, etc. Holding these inodes in
> I_FREEING can cause pauses.

What sort of pauses? I can't see how holding a few inodes in
I_FREEING state would cause any serious sort of holdoff...

Cheers,

Dave.
-- 
Dave Chinner
david@...morbit.com
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