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From: Linus Torvalds <torvalds@linux-foundation.org>
To: Benjamin LaHaise <bcrl@kvack.org>
Cc: Kent Overstreet <kmo@daterainc.com>,
	Dave Jones <davej@redhat.com>,
	Linux Kernel <linux-kernel@vger.kernel.org>,
	linux-mm <linux-mm@kvack.org>, Christoph Lameter <cl@gentwo.org>,
	Al Viro <viro@zeniv.linux.org.uk>
Subject: Re: bad page state in 3.13-rc4
Date: Fri, 20 Dec 2013 05:31:29 +0900	[thread overview]
Message-ID: <CA+55aFzW_MKS35Mn9cfZV2A4BH_ONZCmmdk1pQtztbxwPYsxpA@mail.gmail.com> (raw)
In-Reply-To: <CA+55aFwu_KN+1Ep5RmgFTvBdH3xRJDmCjZ9Fo_pH28hTdiHyiQ@mail.gmail.com>

On Fri, Dec 20, 2013 at 5:11 AM, Linus Torvalds
<torvalds@linux-foundation.org> wrote:
>
> So here's the same patch, but with stuff moved around a bit, and the
> "oops, couldn't create page" part fixed.
>
> Bit it's still totally and entirely untested.

Btw, I think this actually fixes a bug, in that it doesn't leak the
page reference count if the do_mmap_pgoff() call fails.

That said, that looks like just a memory leak, not explaining the
problem Dave sees. And maybe I'm missing something.

And no, I still haven't actually tested this at all. Is there an aio
tester that is worth trying?

                   Linus

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  parent reply	other threads:[~2013-12-19 20:31 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-19  4:07 Dave Jones
2013-12-19  4:40 ` Linus Torvalds
2013-12-19 15:41   ` Christoph Lameter
2013-12-19 20:11     ` Mel Gorman
2013-12-19 20:30       ` Dave Jones
2013-12-19 15:53   ` Dave Jones
2013-12-19 17:07     ` Linus Torvalds
2013-12-19 17:17       ` Dave Jones
2013-12-19 18:11       ` Kent Overstreet
2013-12-19 18:29         ` Benjamin LaHaise
2013-12-19 18:35           ` Dave Jones
2013-12-19 19:19           ` Linus Torvalds
2013-12-19 19:26             ` Benjamin LaHaise
2013-12-19 19:45               ` Linus Torvalds
2013-12-19 19:53                 ` Benjamin LaHaise
2013-12-19 20:02                   ` Linus Torvalds
2013-12-19 20:11                     ` Linus Torvalds
2013-12-19 20:31                       ` Benjamin LaHaise
2013-12-19 20:31                       ` Linus Torvalds [this message]
2013-12-19 20:42                         ` Benjamin LaHaise
2013-12-19 20:24                   ` Dave Jones
2013-12-19 23:38                     ` Benjamin LaHaise
2013-12-20  1:00                       ` Dave Jones
2013-12-21 23:06                         ` [PATCHes - aio / migrate page, please review] " Benjamin LaHaise
2013-12-22 19:09                           ` Linus Torvalds
2013-12-22 21:30                             ` Dave Jones

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