size_t in cma_alloc is confusing since it makes people think it's byte count, not pages. Fix it. Link: https://lore.kernel.org/linux-mm/20210324043434.GP1719932@xxxxxxxxxxxxxxxxxxxx/ Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx> Signed-off-by: Minchan Kim <minchan@xxxxxxxxxx> --- include/linux/cma.h | 2 +- mm/cma.c | 8 ++++---- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/include/linux/cma.h b/include/linux/cma.h index 217999c8a762..a873edc20ca2 100644 --- a/include/linux/cma.h +++ b/include/linux/cma.h @@ -44,7 +44,7 @@ extern int cma_init_reserved_mem(phys_addr_t base, phys_addr_t size, unsigned int order_per_bit, const char *name, struct cma **res_cma); -extern struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align, +extern struct page *cma_alloc(struct cma *cma, unsigned int count, unsigned int align, bool no_warn); extern bool cma_release(struct cma *cma, const struct page *pages, unsigned int count); diff --git a/mm/cma.c b/mm/cma.c index 08c45157911a..24dc01e26d45 100644 --- a/mm/cma.c +++ b/mm/cma.c @@ -423,21 +423,21 @@ static inline void cma_debug_show_areas(struct cma *cma) { } * This function allocates part of contiguous memory on specific * contiguous memory area. */ -struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align, +struct page *cma_alloc(struct cma *cma, unsigned int count, unsigned int align, bool no_warn) { unsigned long mask, offset; unsigned long pfn = -1; unsigned long start = 0; unsigned long bitmap_maxno, bitmap_no, bitmap_count; - size_t i; + unsigned int i; struct page *page = NULL; int ret = -ENOMEM; if (!cma || !cma->count || !cma->bitmap) goto out; - pr_debug("%s(cma %p, count %zu, align %d)\n", __func__, (void *)cma, + pr_debug("%s(cma %p, count %u, align %d)\n", __func__, (void *)cma, count, align); if (!count) @@ -500,7 +500,7 @@ struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align, } if (ret && !no_warn) { - pr_err_ratelimited("%s: %s: alloc failed, req-size: %zu pages, ret: %d\n", + pr_err_ratelimited("%s: %s: alloc failed, req-size: %u pages, ret: %d\n", __func__, cma->name, count, ret); cma_debug_show_areas(cma); } -- 2.31.0.291.g576ba9dcdaf-goog
