powerpc/mm: Fix switch_mmu_context to iterate of the proper list of cpus (67050b5c) · Commits · 戴 / test

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>

arch/powerpc/mm/mmu_context_nohash.c

+5 −4

Original line number	Diff line number	Diff line
		@@ -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 */

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