linux-kernel - Re: [patch v3] splice: fix race with page invalidation

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Date:	Wed, 30 Jul 2008 14:56:55 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Miklos Szeredi <miklos@...redi.hu>
cc:	jens.axboe@...cle.com, akpm@...ux-foundation.org,
	nickpiggin@...oo.com.au, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [patch v3] splice: fix race with page invalidation

On Wed, 30 Jul 2008, Miklos Szeredi wrote:
> 
> You are being unfair: after having talked it over with Nick I
> resubmitted this patch (not the same), which was added to -mm and
> nobody complained then. Then it got thrown out of -mm during the merge
> window because of a conflict, and then now I got around to
> resubmitting it again.

Ok, fair enough. I don't follow -mm myself (since as far as I'm concerned, 
a lot of the point of -mm is that Andrew takes a lot of load off me). So 
yes, it was unfair and yes, I'd never have reacted to it in -mm.

But I'd really like to get that PG_uptodate bit just fixed - both wrt 
writeout errors and wrt truncate/holepunch. We had some similar issues wrt 
ext3 (?) inode buffers, where removing the uptodate bit actually ended up 
being a mistake.

			Linus
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