From: Hiro Yoshioka <lkml.hyoshiok@gmail.com>
To: Arjan van de Ven <arjan@infradead.org>
Cc: linux-kernel@vger.kernel.org, Hiro Yoshioka <hyoshiok@miraclelinux.com>
Subject: Re: [RFC] [PATCH] cache pollution aware __copy_from_user_ll()
Date: Tue, 16 Aug 2005 08:33:59 +0900 [thread overview]
Message-ID: <98df96d3050815163331d6cce1@mail.gmail.com> (raw)
In-Reply-To: <1124096021.3228.20.camel@laptopd505.fenrus.org>
On 8/15/05, Arjan van de Ven <arjan@infradead.org> wrote:
> > copy_from_user_nocache() is fine.
> >
> > But I don't know where I can use it. (I'm not so
> > familiar with the linux kernel file system yet.)
>
> I suspect the few cases where it will make the most difference will be
> in the VFS for the write() system call, and the AIO variants thereof.
>
> generic_file_buffered_write() will be a good candidate to try first...
Thanks.
filemap_copy_from_user() calls __copy_from_user_inatomic() calls
__copy_from_user_ll().
I'll look at the code.
Hiro
--
Hiro Yoshioka
mailto:hyoshiok at miraclelinux.com
next prev parent reply other threads:[~2005-08-15 23:34 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-14 9:16 [RFC] [PATCH] cache pollution aware __copy_from_user_ll() Hiro Yoshioka
2005-08-14 9:41 ` Arjan van de Ven
2005-08-14 10:22 ` Hiro Yoshioka
2005-08-14 10:35 ` Arjan van de Ven
2005-08-14 10:45 ` Christoph Hellwig
2005-08-15 6:43 ` Hiro Yoshioka
2005-08-15 7:16 ` Arjan van de Ven
2005-08-15 8:44 ` Hiro Yoshioka
2005-08-15 8:53 ` Arjan van de Ven
2005-08-15 23:33 ` Hiro Yoshioka [this message]
2005-08-16 3:30 ` Hiro Yoshioka
2005-08-16 4:17 ` Hirokazu Takahashi
2005-08-16 4:54 ` Hiro Yoshioka
2005-08-16 5:43 ` Arjan van de Ven
2005-08-16 10:16 ` Hiro Yoshioka
2005-08-16 10:19 ` Hirokazu Takahashi
2005-08-16 10:25 ` Arjan van de Ven
2005-08-16 10:24 ` Hirokazu Takahashi
2005-08-16 5:44 ` Arjan van de Ven
2005-08-16 5:49 ` Arjan van de Ven
[not found] ` <20050817.110503.97359275.taka@valinux.co.jp>
2005-08-17 5:10 ` Hiro Yoshioka
2005-08-17 14:30 ` Akira Tsukamoto
2005-08-17 15:27 ` Akira Tsukamoto
2005-08-18 17:53 ` Lee Revell
2005-08-18 2:37 ` Akira Tsukamoto
-- strict thread matches above, loose matches on Subject: below --
2005-08-14 21:24 Ian Kumlien
2005-08-15 7:21 ` Arjan van de Ven
2005-08-15 14:49 ` Ian Kumlien
2005-08-15 12:15 linux
2005-08-15 12:25 ` Arjan van de Ven
[not found] <20050815121555.29159.qmail@science.horizon.com.suse.lists.linux.kernel>
[not found] ` <1124108702.3228.33.camel@laptopd505.fenrus.org.suse.lists.linux.kernel>
2005-08-15 15:02 ` Andi Kleen
2005-08-15 15:09 ` Arjan van de Ven
2005-08-15 15:13 ` Andi Kleen
[not found] <20050816.131729.15816429.taka@valinux.co.jp.suse.lists.linux.kernel>
[not found] ` <20050816.135425.719901536.hyoshiok@miraclelinux.com.suse.lists.linux.kernel>
[not found] ` <1124171015.3215.0.camel@laptopd505.fenrus.org.suse.lists.linux.kernel>
[not found] ` <20050816.191617.1025215458.hyoshiok@miraclelinux.com.suse.lists.linux.kernel>
[not found] ` <1124187950.3215.31.camel@laptopd505.fenrus.org.suse.lists.linux.kernel>
2005-08-16 13:15 ` Andi Kleen
2005-08-18 11:06 ` Hiro Yoshioka
2005-08-18 11:11 ` Hiro Yoshioka
2005-08-18 23:29 ` Hiro Yoshioka
2005-08-22 1:24 ` Hiro Yoshioka
2005-08-22 13:07 ` Andi Kleen
2005-08-22 2:43 ` Hiro Yoshioka
2005-08-22 23:12 ` Hiro Yoshioka
2005-08-24 14:11 ` Hiro Yoshioka
2005-08-24 14:21 ` Arjan van de Ven
2005-08-24 16:22 ` Hirokazu Takahashi
2005-08-25 4:53 ` Hiro Yoshioka
2005-08-16 18:09 Chuck Ebbert
2005-08-16 23:21 ` Hiro Yoshioka
2005-08-17 4:50 ` Hiro Yoshioka
2005-08-17 15:19 Chuck Ebbert
2005-08-18 9:45 ` Hiro Yoshioka
[not found] <20050818.201138.607962419.hyoshiok@miraclelinux.com.suse.lists.linux.kernel>
[not found] ` <98df96d30508181629d85edb5@mail.gmail.com.suse.lists.linux.kernel>
[not found] ` <20050823.081246.846946371.hyoshiok@miraclelinux.com.suse.lists.linux.kernel>
[not found] ` <20050824.231156.278740508.hyoshiok@miraclelinux.com.suse.lists.linux.kernel>
2005-08-24 16:18 ` Andi Kleen
2005-08-25 4:54 ` Hiro Yoshioka
2005-09-01 9:07 ` Hiro Yoshioka
2005-09-01 9:36 ` Andi Kleen
2005-09-02 1:43 ` Hiro Yoshioka
2005-09-02 2:06 ` Andi Kleen
2005-09-02 2:08 ` Andrew Morton
2005-09-02 2:17 ` Andi Kleen
2005-09-02 2:28 ` Andrew Morton
2005-09-02 3:41 ` Hiro Yoshioka
2005-09-02 4:29 ` Andrew Morton
2005-09-02 4:37 ` Hiro Yoshioka
2005-09-03 11:59 ` Hiro Yoshioka
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