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(parent: 671a635) | patch
rcu: rcu_qs -- Use raise_softirq_irqoff to not save irqs twice
authorCyrill Gorcunov <gorcunov@gmail.com>
Thu, 24 Jan 2019 18:14:37 +0000 (21:14 +0300)
committerPaul E. McKenney <paulmck@linux.ibm.com>
Tue, 26 Mar 2019 21:37:49 +0000 (14:37 -0700)
commit18d7e40679ef574e428f893101be1c0035e95ee3
treebf75bb044a0e0b708294a3f1b4253b65a022ff03tree | snapshot
parent671a63517cf983ad8eaa324167165cef245ab744commit | diff
rcu: rcu_qs -- Use raise_softirq_irqoff to not save irqs twice

The rcu_qs is disabling IRQs by self so no need to do the same in raise_softirq
but instead we can save some cycles using raise_softirq_irqoff directly.

CC: Paul E. McKenney <paulmck@linux.ibm.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
kernel/rcu/tiny.c diff | blob | history
Domain: System / Kernel;