linux-kernel - Re: [PATCH] pidns: Fix a leak in /proc inodes and dentries

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Message-ID: <20091020120926.GA28909@x200>
Date:	Tue, 20 Oct 2009 16:09:26 +0400
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
Cc:	Andrew Morton <akpm@...l.org>, dlezcano@...ibm.com,
	ebiederm@...ssion.com, jack@....cz, andrea@...share.com,
	sukadev@...ibm.com,
	Containers <containers@...ts.linux-foundation.org>,
	linux-kernel@...r.kernel.org, Pavel Emelyanov <xemul@...nvz.org>,
	mingo@...e.hu
Subject: Re: [PATCH] pidns: Fix a leak in /proc inodes and dentries

On Mon, Oct 19, 2009 at 09:13:37PM -0700, Sukadev Bhattiprolu wrote:
> --- linux-2.6.orig/fs/proc/base.c
> +++ linux-2.6/fs/proc/base.c
> @@ -2580,8 +2580,7 @@ static void proc_flush_task_mnt(struct v
>  	name.len = snprintf(buf, sizeof(buf), "%d", pid);
>  	dentry = d_hash_and_lookup(mnt->mnt_root, &name);
>  	if (dentry) {
> -		if (!(current->flags & PF_EXITING))
> -			shrink_dcache_parent(dentry);
> +		shrink_dcache_parent(dentry);

What to do with original deadlock?
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