On 4/29/22 16:02, Kefeng Wang wrote:
> Show physical address of each ioremap in /proc/vmallocinfo.
>
> Acked-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Reviewed-by: Christoph Hellwig <hch@xxxxxx>
> Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Reviewed-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>
> ---
> 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);
