perf/core: Rename perf_proc_update_handler() -> perf_event_max_sample_rate_handler(), for readability

Xiu Jianfeng · ingomolnar · commit e6814ec3ba19 · 2023-10-05T10:26:50.000+02:00
Follow the naming pattern of the other sysctl handlers in perf. Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20230721090607.172002-1-xiujianfeng@huawei.com
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
@@ -1573,7 +1573,7 @@ extern int sysctl_perf_cpu_time_max_percent;
 
 extern void perf_sample_event_took(u64 sample_len_ns);
 
-int perf_proc_update_handler(struct ctl_table *table, int write,
+int perf_event_max_sample_rate_handler(struct ctl_table *table, int write,
 		void *buffer, size_t *lenp, loff_t *ppos);
 int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write,
 		void *buffer, size_t *lenp, loff_t *ppos);
diff --git a/kernel/events/core.c b/kernel/events/core.c
@@ -449,8 +449,8 @@ static void update_perf_cpu_limits(void)
 
 static bool perf_rotate_context(struct perf_cpu_pmu_context *cpc);
 
-int perf_proc_update_handler(struct ctl_table *table, int write,
-		void *buffer, size_t *lenp, loff_t *ppos)
+int perf_event_max_sample_rate_handler(struct ctl_table *table, int write,
+				       void *buffer, size_t *lenp, loff_t *ppos)
 {
 	int ret;
 	int perf_cpu = sysctl_perf_cpu_time_max_percent;
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
@@ -1983,7 +1983,7 @@ static struct ctl_table kern_table[] = {
 		.data		= &sysctl_perf_event_sample_rate,
 		.maxlen		= sizeof(sysctl_perf_event_sample_rate),
 		.mode		= 0644,
-		.proc_handler	= perf_proc_update_handler,
+		.proc_handler	= perf_event_max_sample_rate_handler,
 		.extra1		= SYSCTL_ONE,
 	},
 	{

Original file line number	Diff line number	Diff line change
`@@ -449,8 +449,8 @@ static void update_perf_cpu_limits(void)`
`449`	`449`
`450`	`450`	`static bool perf_rotate_context(struct perf_cpu_pmu_context *cpc);`
`451`	`451`
`452`		`-int perf_proc_update_handler(struct ctl_table *table, int write,`
`453`		`- void buffer, size_t lenp, loff_t *ppos)`
	`452`	`+int perf_event_max_sample_rate_handler(struct ctl_table *table, int write,`
	`453`	`+ void buffer, size_t lenp, loff_t *ppos)`
`454`	`454`	`{`
`455`	`455`	`int ret;`
`456`	`456`	`int perf_cpu = sysctl_perf_cpu_time_max_percent;`
Original file line number	Diff line number	Diff line change
`@@ -1983,7 +1983,7 @@ static struct ctl_table kern_table[] = {`
`1983`	`1983`	`.data = &sysctl_perf_event_sample_rate,`
`1984`	`1984`	`.maxlen = sizeof(sysctl_perf_event_sample_rate),`
`1985`	`1985`	`.mode = 0644,`
`1986`		`- .proc_handler = perf_proc_update_handler,`
	`1986`	`+ .proc_handler = perf_event_max_sample_rate_handler,`
`1987`	`1987`	`.extra1 = SYSCTL_ONE,`
`1988`	`1988`	`},`
`1989`	`1989`	`{`