From: Tang Yuantian Date: Tue, 16 Aug 2011 19:51:33 +0000 (+0000) Subject: powerpc/mm: Fix the call trace when resumed from hibernation X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=0330581ab3b9002d55ee66f377ccbbb742175c01;p=openwrt%2Fstaging%2Fblogic.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 Signed-off-by: Benjamin Herrenschmidt --- diff --git a/arch/powerpc/kernel/swsusp.c b/arch/powerpc/kernel/swsusp.c index aa17b76dd427..641f9adc6205 100644 --- a/arch/powerpc/kernel/swsusp.c +++ b/arch/powerpc/kernel/swsusp.c @@ -33,6 +33,6 @@ void save_processor_state(void) void restore_processor_state(void) { #ifdef CONFIG_PPC32 - switch_mmu_context(NULL, current->active_mm); + switch_mmu_context(current->active_mm, current->active_mm); #endif }