diff options
Diffstat (limited to 'mm/percpu.c')
-rw-r--r-- | mm/percpu.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/mm/percpu.c b/mm/percpu.c index c0b2c1a76e81..d06f4748271e 100644 --- a/mm/percpu.c +++ b/mm/percpu.c | |||
@@ -549,14 +549,14 @@ static void pcpu_free_area(struct pcpu_chunk *chunk, int freeme) | |||
549 | * @chunk: chunk of interest | 549 | * @chunk: chunk of interest |
550 | * @page_start: page index of the first page to unmap | 550 | * @page_start: page index of the first page to unmap |
551 | * @page_end: page index of the last page to unmap + 1 | 551 | * @page_end: page index of the last page to unmap + 1 |
552 | * @flush: whether to flush cache and tlb or not | 552 | * @flush_tlb: whether to flush tlb or not |
553 | * | 553 | * |
554 | * For each cpu, unmap pages [@page_start,@page_end) out of @chunk. | 554 | * For each cpu, unmap pages [@page_start,@page_end) out of @chunk. |
555 | * If @flush is true, vcache is flushed before unmapping and tlb | 555 | * If @flush is true, vcache is flushed before unmapping and tlb |
556 | * after. | 556 | * after. |
557 | */ | 557 | */ |
558 | static void pcpu_unmap(struct pcpu_chunk *chunk, int page_start, int page_end, | 558 | static void pcpu_unmap(struct pcpu_chunk *chunk, int page_start, int page_end, |
559 | bool flush) | 559 | bool flush_tlb) |
560 | { | 560 | { |
561 | unsigned int last = num_possible_cpus() - 1; | 561 | unsigned int last = num_possible_cpus() - 1; |
562 | unsigned int cpu; | 562 | unsigned int cpu; |
@@ -569,9 +569,8 @@ static void pcpu_unmap(struct pcpu_chunk *chunk, int page_start, int page_end, | |||
569 | * the whole region at once rather than doing it for each cpu. | 569 | * the whole region at once rather than doing it for each cpu. |
570 | * This could be an overkill but is more scalable. | 570 | * This could be an overkill but is more scalable. |
571 | */ | 571 | */ |
572 | if (flush) | 572 | flush_cache_vunmap(pcpu_chunk_addr(chunk, 0, page_start), |
573 | flush_cache_vunmap(pcpu_chunk_addr(chunk, 0, page_start), | 573 | pcpu_chunk_addr(chunk, last, page_end)); |
574 | pcpu_chunk_addr(chunk, last, page_end)); | ||
575 | 574 | ||
576 | for_each_possible_cpu(cpu) | 575 | for_each_possible_cpu(cpu) |
577 | unmap_kernel_range_noflush( | 576 | unmap_kernel_range_noflush( |
@@ -579,7 +578,7 @@ static void pcpu_unmap(struct pcpu_chunk *chunk, int page_start, int page_end, | |||
579 | (page_end - page_start) << PAGE_SHIFT); | 578 | (page_end - page_start) << PAGE_SHIFT); |
580 | 579 | ||
581 | /* ditto as flush_cache_vunmap() */ | 580 | /* ditto as flush_cache_vunmap() */ |
582 | if (flush) | 581 | if (flush_tlb) |
583 | flush_tlb_kernel_range(pcpu_chunk_addr(chunk, 0, page_start), | 582 | flush_tlb_kernel_range(pcpu_chunk_addr(chunk, 0, page_start), |
584 | pcpu_chunk_addr(chunk, last, page_end)); | 583 | pcpu_chunk_addr(chunk, last, page_end)); |
585 | } | 584 | } |