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From: Mike Frysinger <vapier.adi@gmail.com>
To: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Stefan Huber <shuber2@gmail.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Peter Meerwald <pmeerw@cosy.sbg.ac.at>,
	James Morris <jmorris@namei.org>,
	William Irwin <wli@movementarian.org>, Mel Gorman <mel@csn.ul.ie>,
	Ravikiran G Thirumalai <kiran@scalex86.org>,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	stable@kernel.org
Subject: Re: [PATCH] fix undefined reference to user_shm_unlock
Date: Sat, 12 Sep 2009 07:41:22 -0400	[thread overview]
Message-ID: <8bd0f97a0909120441y764174d3pc78929438492c6dd@mail.gmail.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0909121218020.488@sister.anvils>

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@kernel.org

should go into 2.6.30.7 and 2.6.31.1
-mike

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      reply	other threads:[~2009-09-12 11:41 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <alpine.LRH.2.00.0908241110420.21562@tundra.namei.org>
2009-08-24 12:27 ` [PATCH] mm: fix hugetlb bug due to user_shm_unlock call (fwd) Hugh Dickins
2009-08-24 13:56   ` Stefan Huber
2009-08-24 15:30     ` [PATCH] mm: fix hugetlb bug due to user_shm_unlock call Hugh Dickins
2009-08-25  7:36       ` Mel Gorman
2009-09-11 14:03       ` Mike Frysinger
2009-09-12 11:17         ` Hugh Dickins
2009-09-12 11:21           ` [PATCH] fix undefined reference to user_shm_unlock Hugh Dickins
2009-09-12 11:41             ` Mike Frysinger [this message]

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