linux-kernel - Re: [PATCH 1/3] revoke: misc fixes

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Message-ID: <84144f020703160152h61439b28i9e438238567a4ba0@mail.gmail.com>
Date:	Fri, 16 Mar 2007 10:52:54 +0200
From:	"Pekka Enberg" <penberg@...helsinki.fi>
To:	"Nick Piggin" <nickpiggin@...oo.com.au>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] revoke: misc fixes

On 3/16/07, Nick Piggin <nickpiggin@...oo.com.au> wrote:
> Also, a down_write_trylock attempt inside i_mmap_lock should be a valid
> optimisation.

I am not sure what you're thinking here. down_write_trylock acquires
->mmap_sem which can deadlock with ->i_mmap_lock, no?
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