drbd: New packet for Ahead/Behind mode: P_OUT_OF_SYNC

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>

1 files changed, 6 insertions, 4 deletions

diff --git a/drivers/block/drbd/drbd_actlog.c b/drivers/block/drbd/drbd_actlog.c
index b4adb58c7472..33f6cc537d08 100644
--- a/drivers/block/drbd/drbd_actlog.c
+++ b/drivers/block/drbd/drbd_actlog.c
@@ -1007,22 +1007,22 @@ void __drbd_set_in_sync(struct drbd_conf *mdev, sector_t sector, int size,
  * called by tl_clear and drbd_send_dblock (==drbd_make_request).
  * so this can be _any_ process.
  */
-void __drbd_set_out_of_sync(struct drbd_conf *mdev, sector_t sector, int size,
+int __drbd_set_out_of_sync(struct drbd_conf *mdev, sector_t sector, int size,
                             const char *file, const unsigned int line)
 {
         unsigned long sbnr, ebnr, lbnr, flags;
         sector_t esector, nr_sectors;
-        unsigned int enr, count;
+        unsigned int enr, count = 0;
         struct lc_element *e;
 
         if (size <= 0 || (size & 0x1ff) != 0 || size > DRBD_MAX_BIO_SIZE) {
                 dev_err(DEV, "sector: %llus, size: %d\n",
                         (unsigned long long)sector, size);
-                return;
+                return 0;
         }
 
         if (!get_ldev(mdev))
-                return; /* no disk, no metadata, no bitmap to set bits in */
+                return 0; /* no disk, no metadata, no bitmap to set bits in */
 
         nr_sectors = drbd_get_capacity(mdev->this_bdev);
         esector = sector + (size >> 9) - 1;
@@ -1052,6 +1052,8 @@ void __drbd_set_out_of_sync(struct drbd_conf *mdev, sector_t sector, int size,
 
 out:
         put_ldev(mdev);
+
+        return count;
 }
 
 static