From: David Vrabel <david.vrabel@citrix.com>
To: xen-devel@lists.xenproject.org
Cc: David Vrabel <david.vrabel@citrix.com>,
Jan Beulich <jbeulich@suse.com>,
Ian Campbell <ian.campbell@citrix.com>
Subject: [PATCHv1 0/4] spinlock: add qrwlocks
Date: Fri, 18 Dec 2015 14:09:02 +0000 [thread overview]
Message-ID: <1450447746-9305-1-git-send-email-david.vrabel@citrix.com> (raw)
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
next reply other threads:[~2015-12-18 14:09 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-18 14:09 David Vrabel [this message]
2015-12-18 14:09 ` [PATCHv1 1/4] atomic: replace atomic_compareandswap() with atomic_cmpxchg() David Vrabel
2015-12-18 17:01 ` Jan Beulich
2016-01-21 15:19 ` Ian Campbell
2015-12-18 14:09 ` [PATCHv1 2/4] x86/domain: Compile with lock_profile=y enabled David Vrabel
2015-12-18 14:09 ` [PATCHv1 3/4] spinlock: shrink struct lock_debug David Vrabel
2015-12-18 16:58 ` Jan Beulich
2016-01-19 12:31 ` Jennifer Herbert
2016-01-19 13:04 ` Jan Beulich
2015-12-18 14:09 ` [PATCHv1 4/4] spinlock: add fair read-write locks David Vrabel
2015-12-22 13:54 ` Jan Beulich
2016-01-18 16:44 ` Jennifer Herbert
2015-12-18 15:47 ` [PATCHv1 0/4] spinlock: add qrwlocks Ian Campbell
2015-12-18 15:49 ` David Vrabel
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