sched/cpuacct: Rename parameter in cpuusage_write() for readability
The name of the 'reset' parameter to cpuusage_write() is quite confusing, because the only valid value we allow is '0', so !reset is actually the case that resets ... Rename it to 'val' and explain it in a comment that we only allow 0. Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: cgroups@vger.kernel.org Cc: tj@kernel.org Link: http://lkml.kernel.org/r/1450696483-2864-1-git-send-email-yangds.fnst@cn.fujitsu.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
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@ -145,13 +145,16 @@ static u64 cpuusage_read(struct cgroup_subsys_state *css, struct cftype *cft)
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}
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}
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static int cpuusage_write(struct cgroup_subsys_state *css, struct cftype *cft,
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static int cpuusage_write(struct cgroup_subsys_state *css, struct cftype *cft,
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u64 reset)
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u64 val)
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{
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{
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struct cpuacct *ca = css_ca(css);
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struct cpuacct *ca = css_ca(css);
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int err = 0;
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int err = 0;
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int i;
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int i;
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if (reset) {
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/*
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* Only allow '0' here to do a reset.
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*/
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if (val) {
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err = -EINVAL;
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err = -EINVAL;
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goto out;
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goto out;
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}
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}
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