block: move policy from disk to part0

Move disk->policy to part0->policy.  Implement and use get_disk_ro().

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

2 files changed, 2 insertions, 2 deletions

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index f16bb4667238..03c2cb6a58bc 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -1113,7 +1113,7 @@ static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq)
 
         if (write) {
                 /* disk has become write protected */
-                if (cd->disk->policy) {
+                if (get_disk_ro(cd->disk)) {
                         cdrom_end_request(drive, 0);
                         return ide_stopped;
                 }
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index c3de311117a1..5b919159f084 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -548,7 +548,7 @@ static int __dev_status(struct mapped_device *md, struct dm_ioctl *param)
          */
         param->open_count = dm_open_count(md);
 
-        if (disk->policy)
+        if (get_disk_ro(disk))
                 param->flags |= DM_READONLY_FLAG;
 
         param->event_nr = dm_get_event_nr(md);