From: Lars Ellenberg <lars.ellenberg@linbit.com>
Date: Thu, 11 Sep 2014 12:29:12 +0000 (+0200)
Subject: drbd: reduce lock contention in drbd_worker
X-Git-Tag: fixes-against-v3.18-rc2~52^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=729e8b87bac63dee09302ddffc05a7ba0e50c9ad;p=pandora-kernel.git

drbd: reduce lock contention in drbd_worker

The worker may now dequeue work items in batches.
This should reduce lock contention during busy periods.

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