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author | Zhao Lei <zhaolei@cn.fujitsu.com> | 2016-06-20 17:37:18 +0800 |
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committer | Ingo Molnar <mingo@kernel.org> | 2016-07-09 13:56:15 +0200 |
commit | 9acacc2ac525ef1397af63b15cef7bb77a823c06 (patch) | |
tree | d51d2fd180fb20a42e7d3d7f45c2d5d5e18c39ac | |
parent | 55e16d30bd99510900caec913c90f53bc2b35cba (diff) | |
download | op-kernel-dev-9acacc2ac525ef1397af63b15cef7bb77a823c06.zip op-kernel-dev-9acacc2ac525ef1397af63b15cef7bb77a823c06.tar.gz |
sched/cpuacct: Merge cpuacct_usage_index and cpuacct_stat_index enums
These two types have similar function, no need to separate them.
Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/436748885270d64363c7dc67167507d486c2057a.1466415271.git.zhaolei@cn.fujitsu.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
-rw-r--r-- | kernel/sched/cpuacct.c | 47 |
1 files changed, 20 insertions, 27 deletions
diff --git a/kernel/sched/cpuacct.c b/kernel/sched/cpuacct.c index 41f85c4..74241eb 100644 --- a/kernel/sched/cpuacct.c +++ b/kernel/sched/cpuacct.c @@ -25,15 +25,13 @@ enum cpuacct_stat_index { CPUACCT_STAT_NSTATS, }; -enum cpuacct_usage_index { - CPUACCT_USAGE_USER, /* ... user mode */ - CPUACCT_USAGE_SYSTEM, /* ... kernel mode */ - - CPUACCT_USAGE_NRUSAGE, +static const char * const cpuacct_stat_desc[] = { + [CPUACCT_STAT_USER] = "user", + [CPUACCT_STAT_SYSTEM] = "system", }; struct cpuacct_usage { - u64 usages[CPUACCT_USAGE_NRUSAGE]; + u64 usages[CPUACCT_STAT_NSTATS]; }; /* track cpu usage of a group of tasks and its child groups */ @@ -108,16 +106,16 @@ static void cpuacct_css_free(struct cgroup_subsys_state *css) } static u64 cpuacct_cpuusage_read(struct cpuacct *ca, int cpu, - enum cpuacct_usage_index index) + enum cpuacct_stat_index index) { struct cpuacct_usage *cpuusage = per_cpu_ptr(ca->cpuusage, cpu); u64 data; /* - * We allow index == CPUACCT_USAGE_NRUSAGE here to read + * We allow index == CPUACCT_STAT_NSTATS here to read * the sum of suages. */ - BUG_ON(index > CPUACCT_USAGE_NRUSAGE); + BUG_ON(index > CPUACCT_STAT_NSTATS); #ifndef CONFIG_64BIT /* @@ -126,11 +124,11 @@ static u64 cpuacct_cpuusage_read(struct cpuacct *ca, int cpu, raw_spin_lock_irq(&cpu_rq(cpu)->lock); #endif - if (index == CPUACCT_USAGE_NRUSAGE) { + if (index == CPUACCT_STAT_NSTATS) { int i = 0; data = 0; - for (i = 0; i < CPUACCT_USAGE_NRUSAGE; i++) + for (i = 0; i < CPUACCT_STAT_NSTATS; i++) data += cpuusage->usages[i]; } else { data = cpuusage->usages[index]; @@ -155,7 +153,7 @@ static void cpuacct_cpuusage_write(struct cpuacct *ca, int cpu, u64 val) raw_spin_lock_irq(&cpu_rq(cpu)->lock); #endif - for (i = 0; i < CPUACCT_USAGE_NRUSAGE; i++) + for (i = 0; i < CPUACCT_STAT_NSTATS; i++) cpuusage->usages[i] = val; #ifndef CONFIG_64BIT @@ -165,7 +163,7 @@ static void cpuacct_cpuusage_write(struct cpuacct *ca, int cpu, u64 val) /* return total cpu usage (in nanoseconds) of a group */ static u64 __cpuusage_read(struct cgroup_subsys_state *css, - enum cpuacct_usage_index index) + enum cpuacct_stat_index index) { struct cpuacct *ca = css_ca(css); u64 totalcpuusage = 0; @@ -180,18 +178,18 @@ static u64 __cpuusage_read(struct cgroup_subsys_state *css, static u64 cpuusage_user_read(struct cgroup_subsys_state *css, struct cftype *cft) { - return __cpuusage_read(css, CPUACCT_USAGE_USER); + return __cpuusage_read(css, CPUACCT_STAT_USER); } static u64 cpuusage_sys_read(struct cgroup_subsys_state *css, struct cftype *cft) { - return __cpuusage_read(css, CPUACCT_USAGE_SYSTEM); + return __cpuusage_read(css, CPUACCT_STAT_SYSTEM); } static u64 cpuusage_read(struct cgroup_subsys_state *css, struct cftype *cft) { - return __cpuusage_read(css, CPUACCT_USAGE_NRUSAGE); + return __cpuusage_read(css, CPUACCT_STAT_NSTATS); } static int cpuusage_write(struct cgroup_subsys_state *css, struct cftype *cft, @@ -213,7 +211,7 @@ static int cpuusage_write(struct cgroup_subsys_state *css, struct cftype *cft, } static int __cpuacct_percpu_seq_show(struct seq_file *m, - enum cpuacct_usage_index index) + enum cpuacct_stat_index index) { struct cpuacct *ca = css_ca(seq_css(m)); u64 percpu; @@ -229,24 +227,19 @@ static int __cpuacct_percpu_seq_show(struct seq_file *m, static int cpuacct_percpu_user_seq_show(struct seq_file *m, void *V) { - return __cpuacct_percpu_seq_show(m, CPUACCT_USAGE_USER); + return __cpuacct_percpu_seq_show(m, CPUACCT_STAT_USER); } static int cpuacct_percpu_sys_seq_show(struct seq_file *m, void *V) { - return __cpuacct_percpu_seq_show(m, CPUACCT_USAGE_SYSTEM); + return __cpuacct_percpu_seq_show(m, CPUACCT_STAT_SYSTEM); } static int cpuacct_percpu_seq_show(struct seq_file *m, void *V) { - return __cpuacct_percpu_seq_show(m, CPUACCT_USAGE_NRUSAGE); + return __cpuacct_percpu_seq_show(m, CPUACCT_STAT_NSTATS); } -static const char * const cpuacct_stat_desc[] = { - [CPUACCT_STAT_USER] = "user", - [CPUACCT_STAT_SYSTEM] = "system", -}; - static int cpuacct_stats_show(struct seq_file *sf, void *v) { struct cpuacct *ca = css_ca(seq_css(sf)); @@ -316,11 +309,11 @@ static struct cftype files[] = { void cpuacct_charge(struct task_struct *tsk, u64 cputime) { struct cpuacct *ca; - int index = CPUACCT_USAGE_SYSTEM; + int index = CPUACCT_STAT_SYSTEM; struct pt_regs *regs = task_pt_regs(tsk); if (regs && user_mode(regs)) - index = CPUACCT_USAGE_USER; + index = CPUACCT_STAT_USER; rcu_read_lock(); |