From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Vrabel <david.vrabel@citrix.com>
Subject: [PATCHv1 0/4] spinlock: add qrwlocks
Date: Fri, 18 Dec 2015 14:09:02 +0000
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Cc: David Vrabel <david.vrabel@citrix.com>, Jan Beulich <jbeulich@suse.com>, Ian Campbell <ian.campbell@citrix.com>
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This series adds the qrwlocks from Linux.  These are fair; under
contention both readers and writers will be queued and obtain the lock
in FIFO order (due to the fairness of the internal ticket lock).

The implementation is all in C and thus architecture independent.

Compared to the Linux implementation some of the memory barrier
primitives were changed.  The ARM maintainers may want to give this
area a careful review.

David