Re: [PATCH] fix undefined reference to user_shm_unlock

From: Mike Frysinger
Date: Sat Sep 12 2009 - 07:41:58 EST


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. ÂHelp it to do so, in a language it understands.

thanks, this works for me

> Cc: stable@xxxxxxxxxx

should go into 2.6.30.7 and 2.6.31.1
-mike
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