[PATCH v4 3/6] mm: ioremap: Setup phys_addr of struct vm_struct

Kefeng Wang wangkefeng.wang at huawei.com
Mon Jun 6 00:48:12 PDT 2022


Show physical address of each ioremap in /proc/vmallocinfo.

Acked-by: Andrew Morton <akpm at linux-foundation.org>
Reviewed-by: Christoph Hellwig <hch at lst.de>
Reviewed-by: Anshuman Khandual <anshuman.khandual at arm.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang at huawei.com>
---
 mm/ioremap.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/ioremap.c b/mm/ioremap.c
index 1f9597fbcc07..7cb9996b0c12 100644
--- a/mm/ioremap.c
+++ b/mm/ioremap.c
@@ -32,6 +32,7 @@ void __iomem *ioremap_prot(phys_addr_t phys_addr, size_t size, unsigned long pro
 	if (!area)
 		return NULL;
 	vaddr = (unsigned long)area->addr;
+	area->phys_addr = phys_addr;
 
 	if (ioremap_page_range(vaddr, vaddr + size, phys_addr, __pgprot(prot))) {
 		free_vm_area(area);
-- 
2.35.3




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