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Message-ID: <8bd0f97a0909120441y764174d3pc78929438492c6dd@mail.gmail.com>
Date: Sat, 12 Sep 2009 07:41:22 -0400
From: Mike Frysinger <vapier.adi@...il.com>
To: Hugh Dickins <hugh.dickins@...cali.co.uk>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>,
Stefan Huber <shuber2@...il.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Peter Meerwald <pmeerw@...y.sbg.ac.at>,
James Morris <jmorris@...ei.org>,
William Irwin <wli@...ementarian.org>,
Mel Gorman <mel@....ul.ie>,
Ravikiran G Thirumalai <kiran@...lex86.org>,
linux-kernel@...r.kernel.org, linux-mm@...ck.org, stable@...nel.org
Subject: Re: [PATCH] fix undefined reference to user_shm_unlock
On Sat, Sep 12, 2009 at 07:21, Hugh Dickins wrote:
> My 353d5c30c666580347515da609dd74a2b8e9b828 "mm: fix hugetlb bug due to
> user_shm_unlock call" broke the CONFIG_SYSVIPC !CONFIG_MMU build of both
> 2.6.31 and 2.6.30.6: "undefined reference to `user_shm_unlock'".
>
> gcc didn't understand my comment! so couldn't figure out to optimize
> away user_shm_unlock() from the error path in the hugetlb-less case,
> as it does elsewhere. Help it to do so, in a language it understands.
thanks, this works for me
> Cc: stable@...nel.org
should go into 2.6.30.7 and 2.6.31.1
-mike
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