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Subject: Re: Linux 2.4.1-ac15
To: prumpf@mandrakesoft.com (Philipp Rumpf)
Date: Mon, 19 Feb 2001 16:27:58 +0000 (GMT)
Cc: alan@lxorguk.ukuu.org.uk (Alan Cox), linux-kernel@vger.kernel.org,
        prumpf@parcelfarce.linux.theplanet.co.uk, rusty@linuxcare.com
In-Reply-To: <Pine.LNX.3.96.1010219101008.32729A-100000@mandrakesoft.mandrakesoft.com> from "Philipp Rumpf" at Feb 19, 2001 10:21:04 AM
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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
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> so you hold a spinlock during copy_from_user ?  Or did you change
> sys_init_module/sys_create_modules semantics ?

The only points I need to hold a spinlock are editing the chain and
walking it in a case where I dont hold the kernel lock.

So I spin_lock_irqsave the two ops updating the list links in each case and
the exception lookup walk

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