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Re: [PATCH][ATM]: [clip] fix race between modifying entry->vccs and clip

To: chas williams <chas@xxxxxxxxxxxxxxxx>
Subject: Re: [PATCH][ATM]: [clip] fix race between modifying entry->vccs and clip_start_xmit()
From: "David S. Miller" <davem@xxxxxxxxxx>
Date: Mon, 15 Sep 2003 15:02:17 -0700
Cc: romieu@xxxxxxxxxxxxx, netdev@xxxxxxxxxxx
In-reply-to: <200309152159.h8FLx1Sa005910@xxxxxxxxxxxxxxxxxxxxxxx>
References: <20030915225901.A22239@xxxxxxxxxxxxxxxxxxxxxxxxxx> <200309152159.h8FLx1Sa005910@xxxxxxxxxxxxxxxxxxxxxxx>
Sender: netdev-bounce@xxxxxxxxxxx
On Mon, 15 Sep 2003 17:59:02 -0400
chas williams <chas@xxxxxxxxxxxxxxxx> wrote:

> this is triggered by vcc_destroy_sock(), which is part of vcc_release()
> which is always going to be in user context.  its a bit subtle but
> there is no path to unlink_clip_vcc() that isnt in user context.

Are you really totally sure that no interrupt path can release
a VCC?  That's not how I understood this stuff to work last time
I looked at it.


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