drbd: Bugfix for regression introduced with f9bc8913c06022e
If we intent to use the block_id member of an epoch entry,
we may not use the digest member.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index 99c937a..1eeb554 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -1052,7 +1052,9 @@
ok = drbd_send_ack(mdev, P_RS_IS_IN_SYNC, e);
} else {
inc_rs_pending(mdev);
- e->block_id = ID_SYNCER;
+ e->block_id = ID_SYNCER; /* By setting block_id, digest pointer becomes invalid! */
+ e->flags &= ~EE_HAS_DIGEST; /* This e no longer has a digest pointer */
+ kfree(di);
ok = drbd_send_block(mdev, P_RS_DATA_REPLY, e);
}
} else {