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powerpc/mm: Fix switch_mmu_context to iterate of the proper list of cpus

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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>
This commit is contained in:
Kumar Gala 2009-08-04 22:33:32 -05:00 committed by Benjamin Herrenschmidt
parent af984b8165
commit 67050b5c3e
1 changed files with 5 additions and 4 deletions
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9
arch/powerpc/mm/mmu_context_nohash.c
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@ -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 */