aboutsummaryrefslogtreecommitdiff
path: root/drivers/block/drbd/drbd_main.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/block/drbd/drbd_main.c')
-rw-r--r--drivers/block/drbd/drbd_main.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 5e5a6abb281..0f73e157dee 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -3226,6 +3226,26 @@ static int w_go_diskless(struct drbd_work *w, int unused)
* inc/dec it frequently. Once we are D_DISKLESS, no one will touch
* the protected members anymore, though, so once put_ldev reaches zero
* again, it will be safe to free them. */
+
+ /* Try to write changed bitmap pages, read errors may have just
+ * set some bits outside the area covered by the activity log.
+ *
+ * If we have an IO error during the bitmap writeout,
+ * we will want a full sync next time, just in case.
+ * (Do we want a specific meta data flag for this?)
+ *
+ * If that does not make it to stable storage either,
+ * we cannot do anything about that anymore. */
+ if (mdev->bitmap) {
+ if (drbd_bitmap_io_from_worker(mdev, drbd_bm_write,
+ "detach", BM_LOCKED_MASK)) {
+ if (test_bit(WAS_READ_ERROR, &mdev->flags)) {
+ drbd_md_set_flag(mdev, MDF_FULL_SYNC);
+ drbd_md_sync(mdev);
+ }
+ }
+ }
+
drbd_force_state(mdev, NS(disk, D_DISKLESS));
return 0;
}