Messages in this thread Patch in this message | | | From | Yunfeng Ye <> | Subject | [PATCH] mm/cma.c: Switch to bitmap_zalloc() for cma bitmap allocation | Date | Sun, 29 Sep 2019 15:12:14 +0800 |
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kzalloc() is used for cma bitmap allocation in cma_activate_area(), switch to bitmap_zalloc() is more clearly.
Signed-off-by: Yunfeng Ye <yeyunfeng@huawei.com> --- mm/cma.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/mm/cma.c b/mm/cma.c index 7fe0b83..be55d19 100644 --- a/mm/cma.c +++ b/mm/cma.c @@ -95,13 +95,11 @@ static void cma_clear_bitmap(struct cma *cma, unsigned long pfn,
static int __init cma_activate_area(struct cma *cma) { - int bitmap_size = BITS_TO_LONGS(cma_bitmap_maxno(cma)) * sizeof(long); unsigned long base_pfn = cma->base_pfn, pfn = base_pfn; unsigned i = cma->count >> pageblock_order; struct zone *zone;
- cma->bitmap = kzalloc(bitmap_size, GFP_KERNEL); - + cma->bitmap = bitmap_zalloc(cma_bitmap_maxno(cma), GFP_KERNEL); if (!cma->bitmap) { cma->count = 0; return -ENOMEM; @@ -139,7 +137,7 @@ static int __init cma_activate_area(struct cma *cma)
not_in_zone: pr_err("CMA area %s could not be activated\n", cma->name); - kfree(cma->bitmap); + bitmap_free(cma->bitmap); cma->count = 0; return -EINVAL; } -- 2.7.4
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