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2016 Oct 25
0
[GIT PULL v2 4/5] processor.h: Remove cpu_relax_lowlatency users
...k **lock, struct mcs_spinlock *node) return; /* Wait until the next pointer is set */ while (!(next = READ_ONCE(node->next))) - cpu_relax_lowlatency(); + cpu_relax(); } /* Pass lock to next waiter. */ diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c index a70b90d..4463405 100644 --- a/kernel/locking/mutex.c +++ b/kernel/locking/mutex.c @@ -241,7 +241,7 @@ bool mutex_spin_on_owner(struct mutex *lock, struct task_struct *owner) break; } - cpu_relax_lowlatency(); + cpu_relax(); } rcu_read_unlock(); @@ -377,7 +377,7 @@ static bool mutex_optimistic_spin(...
2016 Oct 25
7
[GIT PULL v2 0/5] cpu_relax: drop lowlatency, introduce yield
Peter, here is v2 with some improved patch descriptions and some fixes. The previous version has survived one day of linux-next and I only changed small parts. So unless there is some other issue, feel free to pull (or to apply the patches) to tip/locking. The following changes since commit 07d9a380680d1c0eb51ef87ff2eab5c994949e69: Linux 4.9-rc2 (2016-10-23 17:10:14 -0700) are available in
2016 Oct 25
7
[GIT PULL v2 0/5] cpu_relax: drop lowlatency, introduce yield
Peter, here is v2 with some improved patch descriptions and some fixes. The previous version has survived one day of linux-next and I only changed small parts. So unless there is some other issue, feel free to pull (or to apply the patches) to tip/locking. The following changes since commit 07d9a380680d1c0eb51ef87ff2eab5c994949e69: Linux 4.9-rc2 (2016-10-23 17:10:14 -0700) are available in