From: Tang Yuantian <B29983@freescale.com>
Date: Tue, 16 Aug 2011 19:51:33 +0000 (+0000)
Subject: powerpc/mm: Fix the call trace when resumed from hibernation
X-Git-Tag: v3.2-rc1~34^2~85
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0330581ab3b9002d55ee66f377ccbbb742175c01;p=pandora-kernel.git

powerpc/mm: Fix the call trace when resumed from hibernation

	In SMP mode, the kernel would produce call trace when resumed
	from hibernation. The reason is when the function destroy_context
	is called to drop the resuming mm context, the mm->context.active
	is 1 which is wrong and should be zero.
	We pass the current->active_mm as previous mm context to function
	switch_mmu_context to decrease the context.active by 1.

	In UP mode, there is no effect.

Signed-off-by: Tang Yuantian <b29983@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---

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