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| author | Souptick Joarder <jrdr.linux@gmail.com> | 2020-07-12 05:39:54 +0200 |
|---|---|---|
| committer | Juergen Gross <jgross@suse.com> | 2020-08-03 07:42:18 +0200 |
| commit | a0c34d225183fd4aca61dccb50e5783fa2f26db1 (patch) | |
| tree | d8bee51feaa7c2afdcccee0de17f30fd2d246a7b /drivers/xen/privcmd.c | |
| parent | xen/privcmd: Corrected error handling path (diff) | |
| download | linux-a0c34d225183fd4aca61dccb50e5783fa2f26db1.tar.xz linux-a0c34d225183fd4aca61dccb50e5783fa2f26db1.zip | |
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>
Diffstat (limited to 'drivers/xen/privcmd.c')
| -rw-r--r-- | drivers/xen/privcmd.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c index a9b2baa2c7be..aa8ca58e6efc 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) |