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authorKumar Gala <galak@kernel.crashing.org>2009-08-04 22:33:32 -0500
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-08-20 10:25:12 +1000
commit67050b5c3e9992d98554bd224d5a7898cc4881ff (patch)
tree296c4d21e193c22e3e31f01799c0048f45df41c7
parentaf984b816530b4725b92e01ecfba7c5e3eab910d (diff)
powerpc/mm: Fix switch_mmu_context to iterate of the proper list of cpus
Introduced a temporary variable into our iterating over the list cpus that are threads on the same core. For some reason Ben forgot how for loops work. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
-rw-r--r--arch/powerpc/mm/mmu_context_nohash.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/powerpc/mm/mmu_context_nohash.c b/arch/powerpc/mm/mmu_context_nohash.c
index 834436d6d6b..c2f93dc470e 100644
--- a/arch/powerpc/mm/mmu_context_nohash.c
+++ b/arch/powerpc/mm/mmu_context_nohash.c
@@ -190,7 +190,7 @@ static void context_check_map(void) { }
void switch_mmu_context(struct mm_struct *prev, struct mm_struct *next)
{
- unsigned int id, cpu = smp_processor_id();
+ unsigned int i, id, cpu = smp_processor_id();
unsigned long *map;
/* No lockless fast path .. yet */
@@ -269,9 +269,10 @@ void switch_mmu_context(struct mm_struct *prev, struct mm_struct *next)
local_flush_tlb_mm(next);
/* XXX This clear should ultimately be part of local_flush_tlb_mm */
- for (cpu = cpu_first_thread_in_core(cpu);
- cpu <= cpu_last_thread_in_core(cpu); cpu++)
- __clear_bit(id, stale_map[cpu]);
+ for (i = cpu_first_thread_in_core(cpu);
+ i <= cpu_last_thread_in_core(cpu); i++) {
+ __clear_bit(id, stale_map[i]);
+ }
}
/* Flick the MMU and release lock */