From: Rik van Riel <riel@redhat.com>
To: Hugh Dickins <hughd@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Andrea Arcangeli <aarcange@redhat.com>, Greg KH <greg@kroah.com>,
Andrew Morton <akpm@linux-foundation.org>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mm: further fix swapin race condition
Date: Sun, 19 Sep 2010 23:09:38 -0400 [thread overview]
Message-ID: <4C96D072.5080305@redhat.com> (raw)
In-Reply-To: <alpine.LSU.2.00.1009191938110.3025@sister.anvils>
On 09/19/2010 10:40 PM, Hugh Dickins wrote:
> Commit 4969c1192d15afa3389e7ae3302096ff684ba655 "mm: fix swapin race condition"
> is now agreed to be incomplete. There's a race, not very much less likely
> than the original race envisaged, in which it is further necessary to check
> that the swapcache page's swap has not changed.
> B ought to have checked that page1's swap was still swap1.
>
> Signed-off-by: Hugh Dickins<hughd@google.com>
> Cc: stable@kernel.org
Reviewed-by: Rik van Riel <riel@redhat.com>
--
All rights reversed
prev parent reply other threads:[~2010-09-20 3:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20100903153958.GC16761@random.random>
[not found] ` <alpine.LSU.2.00.1009051926330.12092@sister.anvils>
[not found] ` <alpine.LSU.2.00.1009151534060.5630@tigran.mtv.corp.google.com>
[not found] ` <20100915234237.GR5981@random.random>
[not found] ` <alpine.DEB.2.00.1009151703060.7332@tigran.mtv.corp.google.com>
[not found] ` <20100916210349.GU5981@random.random>
[not found] ` <alpine.LSU.2.00.1009161905190.2517@tigran.mtv.corp.google.com>
[not found] ` <20100918131907.GI18596@random.random>
[not found] ` <alpine.LSU.2.00.1009191924110.2779@sister.anvils>
2010-09-20 2:40 ` Hugh Dickins
2010-09-20 3:09 ` Rik van Riel [this message]
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