From: Xiaobing Luo <luoxiaobing0926@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Xiaobing Luo <luoxiaobing0926@gmail.com>,
linux-mm@kvack.org, linux-kernel@vger.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.
Date: Wed, 27 Dec 2023 06:18:25 +0000 [thread overview]
Message-ID: <20231227061825.116177-1-luoxiaobing0926@gmail.com> (raw)
[ 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@gmail.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
next reply other threads:[~2023-12-27 6:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-27 6:18 Xiaobing Luo [this message]
2023-12-27 9:56 ` Matthew Wilcox
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