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| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-08-15 03:38:46 +0400 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-09-08 03:27:35 +0400 |
| commit | 284a8c93af47306beed967a303d84730b32bab39 (patch) | |
| tree | 7744a2f51d5f59b2a7241c09fbc5325da37dc800 /kernel/softirq.c | |
| parent | 1d082fd061884a587c490c4fc8a2056ce1e47624 (diff) | |
| download | linux-284a8c93af47306beed967a303d84730b32bab39.tar.xz | |
rcu: Per-CPU operation cleanups to rcu_*_qs() functions
The rcu_bh_qs(), rcu_preempt_qs(), and rcu_sched_qs() functions use
old-style per-CPU variable access and write to ->passed_quiesce even
if it is already set. This commit therefore updates to use the new-style
per-CPU variable access functions and avoids the spurious writes.
This commit also eliminates the "cpu" argument to these functions because
they are always invoked on the indicated CPU.
Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/softirq.c')
| -rw-r--r-- | kernel/softirq.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/softirq.c b/kernel/softirq.c index 5918d227730f..348ec763b104 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -278,7 +278,7 @@ restart: pending >>= softirq_bit; } - rcu_bh_qs(smp_processor_id()); + rcu_bh_qs(); local_irq_disable(); pending = local_softirq_pending(); |