From: Nikanth Karthikesan <knikanth@suse.de>
Date: Wed, 23 Sep 2009 22:57:09 +0000 (-0700)
Subject: /dev/zero: avoid repeated access_ok() checks
X-Git-Tag: v2.6.32-rc1~91
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bb521c5de070b86a1e049e2dbf62328f717ff1e8;p=pandora-kernel.git

/dev/zero: avoid repeated access_ok() checks

In read_zero, we check for access_ok() once for the count bytes.  It is
unnecessarily checked again in clear_user.  Use __clear_user, which does
not check for access_ok().

Signed-off-by: Nikanth Karthikesan <knikanth@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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