tree ed8fbbbbd7cb4db7d77531bcd2c046f5bd0170c1
parent a1c88d0d7aa2ef427f78834c9a3b0a673a19dca6
author Philipp Reisner <philipp.reisner@linbit.com> 1273502543 +0200
committer Philipp Reisner <philipp.reisner@linbit.com> 1274141012 +0200

drbd: If we detect late that IO got frozen, retry after we thawed.

If we detect late (= after grabing mdev->req_lock) that IO got frozen, we
return 1 to generic_make_request(), which simply will retry to make a
request for that bio.

In the subsequent call of generic_make_request() into drbd_make_request_26()
we sleep in inc_ap_bio().

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