From: Matt Helsley <matthltc@us.ibm.com>
To: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Cc: akpm@linux-foundation.org, linux-mm@kvack.org,
kamezawa.hiroyu@jp.fujitsu.com, minoura@valinux.co.jp
Subject: Re: [PATCH] a fix for procfs-task-exe-symlink.patch
Date: Mon, 17 Mar 2008 13:55:24 -0700 [thread overview]
Message-ID: <1205787324.1175.0.camel@localhost.localdomain> (raw)
In-Reply-To: <20080317004330.6D4441E7958@siro.lan>
On Mon, 2008-03-17 at 09:43 +0900, YAMAMOTO Takashi wrote:
> it seems that procfs-task-exe-symlink.patch broke the case of
> dup_mmap failure. ie. mm->exe_file is copied by memcpy from oldmm
> and then be fput'ed by mmput/set_mm_exe_file.
>
> YAMAMOTO Takashi
>
>
> Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
> ---
>
> --- linux-2.6.25-rc3-mm1/kernel/fork.c.BACKUP 2008-03-05 15:45:50.000000000 +0900
> +++ linux-2.6.25-rc3-mm1/kernel/fork.c 2008-03-17 09:17:39.000000000 +0900
> @@ -523,11 +526,12 @@ static struct mm_struct *dup_mm(struct t
> if (init_new_context(tsk, mm))
> goto fail_nocontext;
>
> + dup_mm_exe_file(oldmm, mm);
> +
> err = dup_mmap(mm, oldmm);
> if (err)
> goto free_pt;
>
> - dup_mm_exe_file(oldmm, mm);
> mm->hiwater_rss = get_mm_rss(mm);
> mm->hiwater_vm = mm->total_vm;
>
Acked-by: Matt Helsley <matthltc@us.ibm.com>
Cheers,
-Matt Helsley
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prev parent reply other threads:[~2008-03-17 20:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-17 0:43 [PATCH] a fix for procfs-task-exe-symlink.patch YAMAMOTO Takashi
2008-03-17 20:55 ` Matt Helsley [this message]
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