> -Original Message-
> From: Souptick Joarder
> Sent: 12 July 2020 04:40
> To: boris.ostrov...@oracle.com; jgr...@suse.com; sstabell...@kernel.org
> Cc: xen-de...@lists.xenproject.org; linux-kernel@vger.kernel.org; Souptick
> Joarder
> ; John Hubbard ; Paul Durrant
>
> Subject: [PATCH v3 2/3] xen/privcmd: Mark pages as dirty
>
> pages need to be marked as dirty before unpinned it in
> unlock_pages() which was oversight. This is fixed now.
>
> Signed-off-by: Souptick Joarder
> Suggested-by: John Hubbard
> Reviewed-by: Juergen Gross
> Cc: John Hubbard
> Cc: Boris Ostrovsky
> Cc: Paul Durrant
Reviewed-by: Paul Durrant
> ---
> drivers/xen/privcmd.c | 5 -
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c
> index b001673..079d35b 100644
> --- a/drivers/xen/privcmd.c
> +++ b/drivers/xen/privcmd.c
> @@ -611,8 +611,11 @@ static void unlock_pages(struct page *pages[], unsigned
> int nr_pages)
> {
> unsigned int i;
>
> - for (i = 0; i < nr_pages; i++)
> + for (i = 0; i < nr_pages; i++) {
> + if (!PageDirty(pages[i]))
> + set_page_dirty_lock(pages[i]);
> put_page(pages[i]);
> + }
> }
>
> static long privcmd_ioctl_dm_op(struct file *file, void __user *udata)
> --
> 1.9.1
