From: Dave Hansen <dave@linux.vnet.ibm.com>
To: Hugh Dickins <hugh@veritas.com>
Cc: David Howells <dhowells@redhat.com>,
Matt Mackall <mpm@selenic.com>,
Jeremy Fitzhardinge <jeremy@goop.org>,
Ingo Molnar <mingo@elte.hu>,
Andrew Morton <akpm@linux-foundation.org>,
Nick Piggin <npiggin@suse.de>,
a.p.zijlstra@chello.nl, linux-kernel@vger.kernel.org,
Dave Hansen <haveblue@us.ibm.com>
Subject: Re: [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex
Date: Mon, 22 Sep 2008 08:14:14 -0700 [thread overview]
Message-ID: <1222096454.8533.18.camel@nimitz> (raw)
In-Reply-To: <Pine.LNX.4.64.0809201649400.13926@blonde.site>
On Sat, 2008-09-20 at 17:12 +0100, Hugh Dickins wrote:
> It's not immediately obvious why two such similar functions needed
> two such dissimilar patches; and we'd all (Nick, Matt and I) prefer
> to restore the similarity, especially now the tiny-shmem.c variant
> has shown a locking problem. Do you see any reason against that?
The only reason I diverged them was that I was trying to encourage the
use of alloc_file() and discourage the use of init_file() due to some
guidance from Christoph H.
But, you're certainly right, being able to find bugs between the two
implementations certainly trumps that, so I see no reason not to reunify
them.
-- Dave
next prev parent reply other threads:[~2008-09-22 15:14 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-10 11:37 [patch] x86: some lock annotations for user copy paths Nick Piggin
2008-09-10 11:41 ` Peter Zijlstra
2008-09-10 11:47 ` Ingo Molnar
2008-09-10 11:50 ` Ingo Molnar
2008-09-10 12:12 ` Ingo Molnar
2008-09-10 12:32 ` Ingo Molnar
2008-09-10 15:12 ` Nick Piggin
2008-09-10 14:48 ` Nick Piggin
2008-09-10 15:01 ` Peter Zijlstra
2008-09-10 15:17 ` Nick Piggin
2008-09-10 15:26 ` Nick Piggin
2008-09-11 8:27 ` Ingo Molnar
2008-09-11 10:43 ` Nick Piggin
2008-09-12 9:24 ` [PATCH] sysfs: fix deadlock Ingo Molnar
2008-09-14 22:02 ` Nick Piggin
2008-09-15 9:15 ` Peter Zijlstra
2008-09-14 7:39 ` [lockdep] possible circular locking, between &mm->mmap_sem and &dev->ev_mutex Ingo Molnar
2008-09-14 7:44 ` Andrew Morton
2008-09-14 8:06 ` [patch] mm: fix locking, inotify_read's ev_mutex vs do_page_fault's mmap_sem Ingo Molnar
2008-09-14 22:12 ` [patch] mm: tiny-shmem fix lor, mmap_sem vs i_mutex Nick Piggin
2008-09-17 20:14 ` Andrew Morton
2008-09-17 20:46 ` Matt Mackall
2008-09-18 11:12 ` Ingo Molnar
2008-09-18 19:29 ` Jeremy Fitzhardinge
2008-09-18 21:11 ` Matt Mackall
2008-09-20 2:18 ` Dave Hansen
2008-09-20 16:12 ` Hugh Dickins
2008-09-22 14:54 ` David Howells
2008-09-23 5:32 ` Nick Piggin
2008-09-24 18:18 ` David Howells
2008-09-24 18:29 ` Matt Mackall
2008-09-24 18:56 ` David Howells
2008-09-24 19:11 ` Matt Mackall
2008-09-24 19:26 ` David Howells
2008-09-24 19:41 ` Hugh Dickins
2008-09-24 19:59 ` David Howells
2008-09-24 23:43 ` Hugh Dickins
2008-09-24 19:29 ` Hugh Dickins
2008-09-24 19:47 ` Andrew Morton
2008-09-22 15:14 ` Dave Hansen [this message]
2008-09-19 8:40 ` Ingo Molnar
2008-09-14 21:36 ` [lockdep] possible circular locking, between &mm->mmap_sem and &dev->ev_mutex Nick Piggin
2008-09-10 14:30 ` [patch] x86: some lock annotations for user copy paths Nick Piggin
2008-09-10 14:31 ` Andi Kleen
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