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Message-Id: <20231227061825.116177-1-luoxiaobing0926@gmail.com> Date: Wed, 27 Dec 2023 06:18:25 +0000 From: Xiaobing Luo <luoxiaobing0926@...il.com> To: Andrew Morton <akpm@...ux-foundation.org> Cc: Xiaobing Luo <luoxiaobing0926@...il.com>, linux-mm@...ck.org, linux-kernel@...r.kernel.org Subject: [PATCH] mm/cma: change print format of pointer in pr_debug() With %p, the pointer will be hashed and print (____ptrval____) instead. [ 0.070467] cma: cma_alloc(cma (____ptrval____), count 256, align 8) [ 0.073003] cma: cma_alloc(): returned (____ptrval____) Use 0x%px instead of %p to print the pointer. Then the print will be like: [ 0.054963] cma: cma_alloc(cma 0xffffffde9ad42a60, count 256, align 8) [ 0.057385] cma: cma_alloc(): returned 0xfffffffe003b0000 Signed-off-by: Xiaobing Luo <luoxiaobing0926@...il.com> --- mm/cma.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/mm/cma.c b/mm/cma.c index 2b2494fd6b59..4559f903df8f 100644 --- a/mm/cma.c +++ b/mm/cma.c @@ -440,7 +440,7 @@ struct page *cma_alloc(struct cma *cma, unsigned long count, if (!cma || !cma->count || !cma->bitmap) goto out; - pr_debug("%s(cma %p, name: %s, count %lu, align %d)\n", __func__, + pr_debug("%s(cma 0x%px, name: %s, count %lu, align %d)\n", __func__, (void *)cma, cma->name, count, align); if (!count) @@ -487,7 +487,7 @@ struct page *cma_alloc(struct cma *cma, unsigned long count, if (ret != -EBUSY) break; - pr_debug("%s(): memory range at pfn 0x%lx %p is busy, retrying\n", + pr_debug("%s(): memory range at pfn 0x%lx 0x%px is busy, retrying\n", __func__, pfn, pfn_to_page(pfn)); trace_cma_alloc_busy_retry(cma->name, pfn, pfn_to_page(pfn), @@ -514,7 +514,7 @@ struct page *cma_alloc(struct cma *cma, unsigned long count, cma_debug_show_areas(cma); } - pr_debug("%s(): returned %p\n", __func__, page); + pr_debug("%s(): returned 0x%px\n", __func__, page); out: if (page) { count_vm_event(CMA_ALLOC_SUCCESS); @@ -539,7 +539,7 @@ bool cma_pages_valid(struct cma *cma, const struct page *pages, pfn = page_to_pfn(pages); if (pfn < cma->base_pfn || pfn >= cma->base_pfn + cma->count) { - pr_debug("%s(page %p, count %lu)\n", __func__, + pr_debug("%s(page 0x%px, count %lu)\n", __func__, (void *)pages, count); return false; } @@ -565,7 +565,7 @@ bool cma_release(struct cma *cma, const struct page *pages, if (!cma_pages_valid(cma, pages, count)) return false; - pr_debug("%s(page %p, count %lu)\n", __func__, (void *)pages, count); + pr_debug("%s(page 0x%px, count %lu)\n", __func__, (void *)pages, count); pfn = page_to_pfn(pages); -- 2.34.1
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