Messages in this thread Patch in this message | | | From | Souptick Joarder <> | Subject | [PATCH v2 2/3] xen/privcmd: Mark pages as dirty | Date | Mon, 6 Jul 2020 23:46:11 +0530 |
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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> Cc: John Hubbard <jhubbard@nvidia.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: Paul Durrant <xadimgnik@gmail.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 33677ea..f6c1543 100644 --- a/drivers/xen/privcmd.c +++ b/drivers/xen/privcmd.c @@ -612,8 +612,11 @@ 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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