Re: [PATCH v4 1/5] pagemap: check permissions and capabilities at open time

Naoya Horiguchi
2015-07-21T08:35:31Z

On Tue, Jul 14, 2015 at 06:37:35PM +0300, Konstantin Khlebnikov wrote:
> This patch moves permission checks from pagemap_read() into pagemap_open().
>
> Pointer to mm is saved in file->private_data. This reference pins only
> mm_struct itself. /proc/*/mem, maps, smaps already work in the same way.
>
> Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
> Link: http://lkml.kernel.org/r/CA+55aFyKpWrt_Ajzh1rzp_GcwZ4=6Y=kOv8hBz172CFJp6L8Tg@mail.gmail.com

Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>