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
v2:
1. change export mcs_spin_lock as a GPL export symbol
2. corrected mcs_spin_lock to references
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 | 99 ++++++++++++++++++++++++++++++++++++++++++
include/linux/mutex.h | 5 +-
kernel/Makefile | 6 +-
kernel/mcs_spinlock.c | 21 +++++++++
kernel/mutex.c | 60 +++----------------------
5 files changed, 133 insertions(+), 58 deletions(-)
create mode 100644 include/linux/mcs_spinlock.h
create mode 100644 kernel/mcs_spinlock.c
--
1.7.4.4
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