From: Pavel Machek <pavel@suse.cz>
To: Arjan van de Ven <arjanv@redhat.com>
Cc: "David S. Miller" <davem@redhat.com>,
ak@suse.de, akpm@digeo.com, linux-kernel@vger.kernel.org
Subject: Re: must-fix list, v5
Date: Thu, 29 May 2003 22:10:10 +0200 [thread overview]
Message-ID: <20030529201010.GF1454@elf.ucw.cz> (raw)
In-Reply-To: <1054208379.5223.0.camel@laptop.fenrus.com>
Hi!
> > What is copy_in_user?
> >
> > Both source and destination pointers are in userspace.
>
> sys_memcpy() ?
No, its for in-kernel usage. If you want to copy 10 bytes in
userspace, you can't use memcpy()... You'd have to do copy_from_user()
then copy_to_user(); and that's what copy_in_user does.
Pavel
--
When do you have a heart between your knees?
[Johanka's followup: and *two* hearts?]
next prev parent reply other threads:[~2003-05-29 19:57 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20030521152255.4aa32fba.akpm@digeo.com.suse.lists.linux.kernel>
[not found] ` <20030521152334.4b04c5c9.akpm@digeo.com.suse.lists.linux.kernel>
[not found] ` <20030526093717.GC642@zaurus.ucw.cz.suse.lists.linux.kernel>
[not found] ` <20030528144839.47efdc4f.akpm@digeo.com.suse.lists.linux.kernel>
[not found] ` <20030528215551.GB255@elf.ucw.cz.suse.lists.linux.kernel>
2003-05-29 9:17 ` must-fix list, v5 Andi Kleen
2003-05-29 9:32 ` David S. Miller
2003-05-29 9:46 ` Pavel Machek
2003-05-29 10:01 ` David S. Miller
2003-05-29 10:03 ` Pavel Machek
2003-05-29 9:46 ` Andi Kleen
2003-05-29 10:01 ` David S. Miller
2003-05-29 11:25 ` Pavel Machek
2003-05-29 11:26 ` David S. Miller
2003-05-29 11:39 ` Arjan van de Ven
2003-05-29 20:10 ` Pavel Machek [this message]
2003-05-29 20:06 ` Pavel Machek
2003-05-29 21:15 ` David S. Miller
2003-05-22 8:16 Grover, Andrew
2003-05-22 8:31 ` Andrew Morton
2003-05-22 14:23 ` Jos Hulzink
-- strict thread matches above, loose matches on Subject: below --
2003-05-21 23:59 Arnd Bergmann
2003-05-21 22:22 Andrew Morton
2003-05-21 22:23 ` Andrew Morton
2003-05-21 22:49 ` Tom Rini
2003-05-21 22:55 ` Andrew Morton
2003-05-26 9:37 ` Pavel Machek
2003-05-28 21:48 ` Andrew Morton
2003-05-28 21:55 ` Pavel Machek
2003-05-28 22:06 ` Andrew Morton
[not found] ` <20030528221812.GC255@elf.ucw.cz>
2003-05-28 22:46 ` Andrew Morton
2003-05-28 23:03 ` Pavel Machek
2003-05-29 11:13 ` Pavel Machek
2003-05-21 22:41 ` Andrew Morton
2003-05-22 1:03 ` Carl-Daniel Hailfinger
2003-05-22 3:08 ` oxymoron
2003-05-22 1:25 ` Andrew Theurer
2003-05-22 6:24 ` Jens Axboe
2003-05-25 21:05 ` Daniel Jacobowitz
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