In this patch series, we separated out the MCS lock code which was previously embedded in the mutex.c. This allows for easier reuse of MCS lock in other places like rwsem and qrwlock. We also did some micro optimizations and barrier cleanup. This patches were previously part of the rwsem optimization patch series but now we spearate them out. Tim Chen Jason Low (2): MCS Lock: optimizations and extra comments MCS Lock: Barrier corrections Tim Chen (1): MCS Lock: Restructure the MCS lock defines and locking code into its own file Waiman Long (1): MCS Lock: Make mcs_spinlock.h includable in other files include/linux/mcs_spinlock.h | 100 ++++++++++++++++++++++++++++++++++++++++++ include/linux/mutex.h | 5 +- kernel/Makefile | 6 +- kernel/mcs_spinlock.c | 37 +++++++++++++++ kernel/mutex.c | 60 +++---------------------- 5 files changed, 150 insertions(+), 58 deletions(-) create mode 100644 include/linux/mcs_spinlock.h create mode 100644 kernel/mcs_spinlock.c -- 1.7.4.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>