From: Lars Ellenberg <lars.ellenberg@linbit.com>
Date: Thu, 27 May 2010 07:45:45 +0000 (+0200)
Subject: drbd: fix hang on local read errors while disconnected
X-Git-Tag: v2.6.35-rc2~12^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d255e5ff5fc6cc6c60dd014d1261448a7bbc8134;p=pandora-kernel.git

drbd: fix hang on local read errors while disconnected

"canceled" w_read_retry_remote never completed, if they have been
canceled after drbd_disconnect connection teardown cleanup has already
run (or we are currently not connected anyways).

Fixed by not queueing a remote retry if we already know it won't work
(pdsk not uptodate), and cleanup ourselves on "cancel", in case we hit a
race with drbd_disconnect.

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

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