diff mbox series

[v2,2/5] mm: ioremap: Setup phys_addr of struct vm_struct

Message ID 20220429103225.75121-3-wangkefeng.wang@huawei.com (mailing list archive)
State New, archived
Headers show
Series arm64: Cleanup ioremap() and support ioremap_prot() | expand

Commit Message

Kefeng Wang April 29, 2022, 10:32 a.m. UTC 
Show physical address of each ioremap in /proc/vmallocinfo.

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

Comments

Anshuman Khandual May 2, 2022, 9:50 a.m. UTC | #1 
On 4/29/22 16:02, Kefeng Wang wrote:
> Show physical address of each ioremap in /proc/vmallocinfo.
> 
> Acked-by: Andrew Morton <akpm@linux-foundation.org>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>

Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.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);
diff mbox series

Patch

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);