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Commit 1a9f064f authored by Rusty Russell's avatar Rusty Russell Committed by Linus Torvalds
Browse files

m32r: make flush_cpumask non-volatile. 



We cast away the volatile, but really, why make it volatile at all?
We already do a mb() inside the cpumask_empty() loop.

Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 95c607d9

arch/m32r/kernel/smp.c

+3 −3
Original line number Diff line number Diff line
@@ -45,7 +45,7 @@ static volatile unsigned long flushcache_cpumask = 0; 
/*

 * For flush_tlb_others()

 */

static volatile cpumask_t flush_cpumask;

static cpumask_t flush_cpumask;

static struct mm_struct *flush_mm;

static struct vm_area_struct *flush_vma;

static volatile unsigned long flush_va;
@@ -415,7 +415,7 @@ static void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm, 
	 */

	send_IPI_mask(&cpumask, INVALIDATE_TLB_IPI, 0);



	while (!cpumask_empty((cpumask_t*)&flush_cpumask)) {

	while (!cpumask_empty(&flush_cpumask)) {

		/* nothing. lockup detection does not belong here */

		mb();

	}
@@ -468,7 +468,7 @@ void smp_invalidate_interrupt(void) 
			__flush_tlb_page(va);

		}

	}

	cpumask_clear_cpu(cpu_id, (cpumask_t*)&flush_cpumask);

	cpumask_clear_cpu(cpu_id, &flush_cpumask);

}



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