From: Rafael J. Wysocki <rjw@sisk.pl>
Date: Mon, 10 Jul 2006 11:45:00 +0000 (-0700)
Subject: [PATCH] swsusp: do not use memcpy for snapshotting memory
X-Git-Tag: v2.6.18-rc2~172
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=95018f7c94cbe4e78fc014b6ce52004714c06e2a;p=pandora-kernel.git

[PATCH] swsusp: do not use memcpy for snapshotting memory

swsusp should not use memcpy for snapshotting memory, because on some
architectures memcpy may increase preempt_count (i386 does this when
CONFIG_X86_USE_3DNOW is set).  Then, as a result, wrong value of preempt_count
is stored in the image.

Replace memcpy in copy_data_pages with an open-coded loop.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

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