[PATCH v3 3/6] mm: ioremap: Setup phys_addr of struct vm_struct

From: Kefeng Wang <wangkefeng.wang@huawei.com>
To: <catalin.marinas@arm.com>, <will@kernel.org>,
	<akpm@linux-foundation.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>
Cc: <linux-mm@kvack.org>, <hch@infradead.org>, <arnd@arndb.de>,
	<anshuman.khandual@arm.com>,
	Kefeng Wang <wangkefeng.wang@huawei.com>,
	Christoph Hellwig <hch@lst.de>
Subject: [PATCH v3 3/6] mm: ioremap: Setup phys_addr of struct vm_struct
Date: Thu, 19 May 2022 16:25:49 +0800	[thread overview]
Message-ID: <20220519082552.117736-4-wangkefeng.wang@huawei.com> (raw)
In-Reply-To: <20220519082552.117736-1-wangkefeng.wang@huawei.com>

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

Acked-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@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

