Commit a0c34d22 authored Jul 12, 2020 by Souptick Joarder Committed by Juergen Gross Aug 03, 2020

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 <jrdr.linux@gmail.com>
Suggested-by: John Hubbard <jhubbard@nvidia.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Paul Durrant <xadimgnik@gmail.com>
Link: https://lore.kernel.org/r/1594525195-28345-3-git-send-email-jrdr.linux@gmail.com


Signed-off-by: Juergen Gross <jgross@suse.com>

parent e398fb4b

drivers/xen/privcmd.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -612,9 +612,12 @@ 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)
		{

Admin message