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Date: Sun, 12 Jul 2020 09:09:54 +0530 From: Souptick Joarder <jrdr.linux@...il.com> To: boris.ostrovsky@...cle.com, jgross@...e.com, sstabellini@...nel.org Cc: xen-devel@...ts.xenproject.org, linux-kernel@...r.kernel.org, Souptick Joarder <jrdr.linux@...il.com>, John Hubbard <jhubbard@...dia.com>, Paul Durrant <xadimgnik@...il.com> 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 <jrdr.linux@...il.com> Suggested-by: John Hubbard <jhubbard@...dia.com> Reviewed-by: Juergen Gross <jgross@...e.com> Cc: John Hubbard <jhubbard@...dia.com> Cc: Boris Ostrovsky <boris.ostrovsky@...cle.com> Cc: Paul Durrant <xadimgnik@...il.com> --- 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
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