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...o is also defined as a shorthand for mcs.locked. Signed-off-by: Waiman Long <Waiman.Long at hp.com> --- kernel/locking/qspinlock.c | 26 +++++++++++++++++++------- 1 files changed, 19 insertions(+), 7 deletions(-) diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c index e98d7d4..9e7659e 100644 --- a/kernel/locking/qspinlock.c +++ b/kernel/locking/qspinlock.c @@ -64,6 +64,7 @@ struct qnode { struct mcs_spinlock mcs; }; +#define qhead mcs.locked /* The queue head flag */ /* * Per-CPU queue node structures; we can never have more than 4 nested @@ -216,18 +217,20 @@...

...o be inserted into the loop. Signed-off-by: Waiman Long <Waiman.Long at hp.com> --- kernel/locking/qspinlock.c | 36 +++++++++++++++++++++++------------- 1 files changed, 23 insertions(+), 13 deletions(-) diff --git a/kernel/locking/qspinlock.c b/kernel/locking/qspinlock.c index 0ee1a23..e98d7d4 100644 --- a/kernel/locking/qspinlock.c +++ b/kernel/locking/qspinlock.c @@ -57,12 +57,21 @@ #include "mcs_spinlock.h" /* + * To have additional features for better virtualization support, it is + * necessary to store additional data in the queue node structure. So + * a new queue nod...

v9->v10: - Make some minor changes to qspinlock.c to accommodate review feedback. - Change author to PeterZ for 2 of the patches. - Include Raghavendra KT's test results in patch 18. v8->v9: - Integrate PeterZ's version of the queue spinlock patch with some modification: http://lkml.kernel.org/r/20140310154236.038181843 at infradead.org - Break the more complex

v9->v10: - Make some minor changes to qspinlock.c to accommodate review feedback. - Change author to PeterZ for 2 of the patches. - Include Raghavendra KT's test results in patch 18. v8->v9: - Integrate PeterZ's version of the queue spinlock patch with some modification: http://lkml.kernel.org/r/20140310154236.038181843 at infradead.org - Break the more complex