diff options
| author |   Peter Zijlstra <peterz@infradead.org> | 2020-11-17 18:19:31 -0500 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-05-12 11:43:26 +0200 |
| commit | 5cb9eaa3d274f75539077a28cf01e3563195fa53 (patch) | |
| tree | e1f3c463f682add25856cae8d02fd258dd8cbb8a /kernel/sched/cpuacct.c | |
| parent | sched: Provide raw_spin_rq_*lock*() helpers (diff) | |
| download | linux-dev-5cb9eaa3d274f75539077a28cf01e3563195fa53.tar.xz linux-dev-5cb9eaa3d274f75539077a28cf01e3563195fa53.zip | |
sched: Wrap rq::lock access
In preparation of playing games with rq->lock, abstract the thing
using an accessor.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Don Hiatt <dhiatt@digitalocean.com>
Tested-by: Hongyu Ning <hongyu.ning@linux.intel.com>
Tested-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lkml.kernel.org/r/20210422123308.136465446@infradead.org
Diffstat (limited to '')
| -rw-r--r-- | kernel/sched/cpuacct.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/kernel/sched/cpuacct.c b/kernel/sched/cpuacct.c index 104a1bade14f..893eece65bfd 100644 --- a/kernel/sched/cpuacct.c +++ b/kernel/sched/cpuacct.c @@ -112,7 +112,7 @@ static u64 cpuacct_cpuusage_read(struct cpuacct *ca, int cpu, /* * Take rq->lock to make 64-bit read safe on 32-bit platforms. */ - raw_spin_lock_irq(&cpu_rq(cpu)->lock); + raw_spin_rq_lock_irq(cpu_rq(cpu)); #endif if (index == CPUACCT_STAT_NSTATS) { @@ -126,7 +126,7 @@ static u64 cpuacct_cpuusage_read(struct cpuacct *ca, int cpu, } #ifndef CONFIG_64BIT - raw_spin_unlock_irq(&cpu_rq(cpu)->lock); + raw_spin_rq_unlock_irq(cpu_rq(cpu)); #endif return data; @@ -141,14 +141,14 @@ static void cpuacct_cpuusage_write(struct cpuacct *ca, int cpu, u64 val) /* * Take rq->lock to make 64-bit write safe on 32-bit platforms. */ - raw_spin_lock_irq(&cpu_rq(cpu)->lock); + raw_spin_rq_lock_irq(cpu_rq(cpu)); #endif for (i = 0; i < CPUACCT_STAT_NSTATS; i++) cpuusage->usages[i] = val; #ifndef CONFIG_64BIT - raw_spin_unlock_irq(&cpu_rq(cpu)->lock); + raw_spin_rq_unlock_irq(cpu_rq(cpu)); #endif } @@ -253,13 +253,13 @@ static int cpuacct_all_seq_show(struct seq_file *m, void *V) * Take rq->lock to make 64-bit read safe on 32-bit * platforms. */ - raw_spin_lock_irq(&cpu_rq(cpu)->lock); + raw_spin_rq_lock_irq(cpu_rq(cpu)); #endif seq_printf(m, " %llu", cpuusage->usages[index]); #ifndef CONFIG_64BIT - raw_spin_unlock_irq(&cpu_rq(cpu)->lock); + raw_spin_rq_unlock_irq(cpu_rq(cpu)); #endif } seq_puts(m, "\n"); |