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authorTang Yuantian <B29983@freescale.com>2011-08-16 19:51:33 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-09-20 09:19:58 +1000
commit0330581ab3b9002d55ee66f377ccbbb742175c01 (patch)
treef6c75c875b3c16371c24c5bba0e519b52a4f5e68 /arch/powerpc
parent9c57a32b2f1615e0ad77e9d3b68fd720f43430da (diff)
downloadop-kernel-dev-0330581ab3b9002d55ee66f377ccbbb742175c01.zip
op-kernel-dev-0330581ab3b9002d55ee66f377ccbbb742175c01.tar.gz
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>
Diffstat (limited to 'arch/powerpc')
-rw-r--r--arch/powerpc/kernel/swsusp.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/swsusp.c b/arch/powerpc/kernel/swsusp.c
index aa17b76..641f9ad 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
}
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