From: Changli Gao <xiaosuo@gmail.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: akpm@linux-foundation.org, Hoang-Nam Nguyen <hnguyen@de.ibm.com>,
Christoph Raisch <raisch@de.ibm.com>,
Roland Dreier <rolandd@cisco.com>,
Sean Hefty <sean.hefty@intel.com>,
Hal Rosenstock <hal.rosenstock@gmail.com>,
Divy Le Ray <divy@chelsio.com>,
"James E.J. Bottomley" <James.Bottomley@suse.de>,
"Theodore Ts'o" <tytso@mit.edu>, Andreas Dilger <adilger@sun.com>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Paul Menage <menage@google.com>, Li Zefan <lizf@cn.fujitsu.com>,
linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, linux-scsi@vger.kernel.org,
linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-mm@kvack.org, containers@lists.linux-foundation.org,
Eric Dumazet <eric.dumazet@gmail.com>,
Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Subject: Re: [PATCH 1/9] mm: add generic adaptive large memory allocation APIs
Date: Fri, 14 May 2010 16:12:41 +0800 [thread overview]
Message-ID: <AANLkTimAfd5vWURp75galRdoHxszFS7GYsOfGHZLD3h7@mail.gmail.com> (raw)
In-Reply-To: <1273824214.5605.3625.camel@twins>
On Fri, May 14, 2010 at 4:03 PM, Peter Zijlstra <peterz@infradead.org> wrote:
> On Thu, 2010-05-13 at 22:08 +0800, Changli Gao wrote:
>> > NAK, I really utterly dislike that inatomic argument. The alloc side
>> > doesn't function in atomic context either. Please keep the thing
>> > symmetric in that regards.
>> >
>>
>> There are some users, who release memory in atomic context. for
>> example: fs/file.c: fdmem.
>
> urgh, but yeah, aside from not using vmalloc to allocate fd tables one
> needs to deal with this.
>
> But if that is the only one, I'd let them do the workqueue thing that's
> already there. If there really are more people wanting to do this, then
> maybe add: kvfree_atomic().
>
Tetsuo has pointed another one in apparmor.
http://kernel.ubuntu.com/git?p=jj/ubuntu-lucid.git;a=blobdiff;f=security/apparmor/match.c;h=d2cd55419acfcae85cb748c8f837a4384a3a0d29;hp=afc2dd2260edffcf88521ae86458ad03aa8ea12c;hb=f5eba4b0a01cc671affa429ba1512b6de7caeb5b;hpb=abdff9ddaf2644d0f9962490f73e030806ba90d3
, though apparmor hasn't been merged into mainline.
--
Regards，
Changli Gao(xiaosuo@gmail.com)
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next prev parent reply other threads:[~2010-05-14 8:12 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-13 9:51 [PATCH 1/9] mm: add generic adaptive large memory allocation APIs Changli Gao
2010-05-13 13:20 ` Peter Zijlstra
2010-05-13 13:36 ` [PATCH 1/9] mm: add generic adaptive large memory allocationAPIs Tetsuo Handa
2010-05-17 1:34 ` KOSAKI Motohiro
2010-05-13 14:08 ` [PATCH 1/9] mm: add generic adaptive large memory allocation APIs Changli Gao
2010-05-14 8:03 ` Peter Zijlstra
2010-05-14 8:12 ` Changli Gao [this message]
2010-05-13 14:39 ` Milton Miller
2010-05-13 14:49 ` Changli Gao
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