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Date: Sun, 28 Dec 2014 01:11:15 -0800 From: Davidlohr Bueso <dave@...olabs.net> To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...nel.org> Cc: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>, Davidlohr Bueso <dave@...olabs.net>, linux-kernel@...r.kernel.org Subject: [PATCH 0/8] locking: Various updates Hello, A little bit of everything really, with the last two patches being the most interesting ones. Patch 1 fixes a silly typo. Patches 2-5 cleanup a bit of ww mutex code. Patch 6 isolates osq code. Patch 7 uses the brand new READ/ASSIGN_ONCE primitives. Patch 8 is a performance patch and gets rid of barrier calls when polling for the (osq) lock. More details obviously in the individual patches. Applies on today's -tip. Please consider for 3.20, thanks! Davidlohr Bueso (8): Documentation/memory-barriers.txt: Fix smp typo locking/mutex: Get rid of use_ww_cxt param in common paths locking/mutex: Checking the stamp is ww only locking/mutex: Delete useless comment locking/mutex: Introduce ww_mutex_set_context_slowpath locking/mcs: Better differentiate between mcs variants locking: Use [READ,ASSIGN]_ONCE() for non-scalar types locking/osq: No need for load/acquire when acquire-polling Documentation/memory-barriers.txt | 2 +- include/linux/osq_lock.h | 12 ++- kernel/Kconfig.locks | 4 + kernel/locking/Makefile | 3 +- kernel/locking/mcs_spinlock.c | 208 -------------------------------------- kernel/locking/mcs_spinlock.h | 22 +--- kernel/locking/mutex.c | 99 +++++++++--------- kernel/locking/osq_lock.c | 203 +++++++++++++++++++++++++++++++++++++ kernel/locking/rwsem-xadd.c | 4 +- 9 files changed, 276 insertions(+), 281 deletions(-) delete mode 100644 kernel/locking/mcs_spinlock.c create mode 100644 kernel/locking/osq_lock.c -- 2.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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