From: Yuri Tikhonov <yur@emcraft•com>
To: Andrew Morton <akpm@linux-foundation•org>
Cc: wd@denx•de, dzu@denx•de, linux-kernel@vger•kernel.org,
miltonm@bga•com, linuxppc-dev@ozlabs•org, paulus@samba•org,
viro@zeniv•linux.org.uk, Hugh Dickins <hugh@veritas•com>,
Geert.Uytterhoeven@sonycom•com, yanok@emcraft•com
Subject: Re[2]: [PATCH][v2] fork_init: fix division by zero
Date: Fri, 19 Dec 2008 08:49:10 +0300 [thread overview]
Message-ID: <1626525439.20081219084910@emcraft.com> (raw)
In-Reply-To: <20081218144553.91226f50.akpm@linux-foundation.org>
=0D=0AHello Andrew,
On Friday, December 19, 2008 you wrote:
[snip]
>> There is one more warning from the common code when I use 256KB pages:
>>=20
>> CC mm/shmem.o
>> mm/shmem.c: In function 'shmem_truncate_range':
>> mm/shmem.c:613: warning: division by zero
>> mm/shmem.c:619: warning: division by zero
>> mm/shmem.c:644: warning: division by zero
>> mm/shmem.c: In function 'shmem_unuse_inode':
>> mm/shmem.c:873: warning: division by zero
>>=20
>> The problem here is that ENTRIES_PER_PAGEPAGE becomes 0x1.0000.0000
>> when PAGE_SIZE is 256K.
>>=20
>> How about the following fix ?
[snip]
> Looks sane.
Thanks for reviewing.
> But to apply this I'd prefer a changelog, a signoff and a grunt from Hugh.
Sure, I'll post this in the separate thread then; keeping Hugh in CC.
Regards, Yuri
--
Yuri Tikhonov, Senior Software Engineer
Emcraft Systems, www.emcraft.com
prev parent reply other threads:[~2008-12-19 5:49 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-10 16:50 [PATCH][v2] fork_init: fix division by zero Yuri Tikhonov
2008-12-11 20:16 ` Andrew Morton
2008-12-11 20:28 ` Al Viro
2008-12-11 20:43 ` Andrew Morton
2008-12-12 2:31 ` Nick Piggin
2008-12-12 2:47 ` Andrew Morton
2008-12-12 3:36 ` Nick Piggin
2008-12-11 22:22 ` Re[2]: " Yuri Tikhonov
2008-12-11 22:26 ` Andrew Morton
2008-12-12 0:48 ` Paul Mackerras
2008-12-12 1:07 ` Andrew Morton
2008-12-18 7:47 ` Yuri Tikhonov
2008-12-18 22:45 ` Andrew Morton
2008-12-19 5:49 ` Yuri Tikhonov [this message]
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