Naming for perf event related functions, types, and variables is inconsistent.
Make struct read_format and all functions related to perf events start with "perf_". Adjust variable names towards the same direction but use shorter names for variables where appropriate (pe prefix).
Signed-off-by: Ilpo Järvinen ilpo.jarvinen@linux.intel.com Reviewed-by: Reinette Chatre reinette.chatre@intel.com ---
v3: - removed "currently" from changelog --- tools/testing/selftests/resctrl/cache.c | 42 ++++++++++++------------- 1 file changed, 21 insertions(+), 21 deletions(-)
diff --git a/tools/testing/selftests/resctrl/cache.c b/tools/testing/selftests/resctrl/cache.c index 4f846a2e5e26..7f45c4957f81 100644 --- a/tools/testing/selftests/resctrl/cache.c +++ b/tools/testing/selftests/resctrl/cache.c @@ -3,7 +3,7 @@ #include <stdint.h> #include "resctrl.h"
-struct read_format { +struct perf_event_read { __u64 nr; /* The number of events */ struct { __u64 value; /* The value of the event */ @@ -11,11 +11,11 @@ struct read_format { };
static struct perf_event_attr pea_llc_miss; -static struct read_format rf_cqm; -static int fd_lm; +static struct perf_event_read pe_read; +static int pe_fd; char llc_occup_path[1024];
-static void initialize_perf_event_attr(void) +static void perf_event_attr_initialize(void) { pea_llc_miss.type = PERF_TYPE_HARDWARE; pea_llc_miss.size = sizeof(struct perf_event_attr); @@ -30,34 +30,34 @@ static void initialize_perf_event_attr(void) }
/* Start counters to log values */ -static void ioctl_perf_event_ioc_reset_enable(void) +static void perf_event_reset_enable(void) { - ioctl(fd_lm, PERF_EVENT_IOC_RESET, 0); - ioctl(fd_lm, PERF_EVENT_IOC_ENABLE, 0); + ioctl(pe_fd, PERF_EVENT_IOC_RESET, 0); + ioctl(pe_fd, PERF_EVENT_IOC_ENABLE, 0); }
-static void initialize_llc_perf(void) +static void perf_event_initialize(void) { memset(&pea_llc_miss, 0, sizeof(struct perf_event_attr)); - memset(&rf_cqm, 0, sizeof(struct read_format)); + memset(&pe_read, 0, sizeof(struct perf_event_read));
/* Initialize perf_event_attr structures for HW_CACHE_MISSES */ - initialize_perf_event_attr(); + perf_event_attr_initialize();
pea_llc_miss.config = PERF_COUNT_HW_CACHE_MISSES;
- rf_cqm.nr = 1; + pe_read.nr = 1; }
-static int reset_enable_llc_perf(pid_t pid, int cpu_no) +static int perf_open(pid_t pid, int cpu_no) { - fd_lm = perf_event_open(&pea_llc_miss, pid, cpu_no, -1, PERF_FLAG_FD_CLOEXEC); - if (fd_lm == -1) { + pe_fd = perf_event_open(&pea_llc_miss, pid, cpu_no, -1, PERF_FLAG_FD_CLOEXEC); + if (pe_fd == -1) { ksft_perror("Error opening leader"); return -1; }
- ioctl_perf_event_ioc_reset_enable(); + perf_event_reset_enable();
return 0; } @@ -141,15 +141,15 @@ static int perf_event_measure(const char *filename, int bm_pid) int ret;
/* Stop counters after one span to get miss rate */ - ioctl(fd_lm, PERF_EVENT_IOC_DISABLE, 0); + ioctl(pe_fd, PERF_EVENT_IOC_DISABLE, 0);
- ret = read(fd_lm, &rf_cqm, sizeof(struct read_format)); + ret = read(pe_fd, &pe_read, sizeof(struct perf_event_read)); if (ret == -1) { ksft_perror("Could not get perf value"); return -1; }
- return print_results_cache(filename, bm_pid, rf_cqm.values[0].value); + return print_results_cache(filename, bm_pid, pe_read.values[0].value); }
/* @@ -204,7 +204,7 @@ int cat_val(struct resctrl_val_param *param, size_t span) if (ret) return ret;
- initialize_llc_perf(); + perf_event_initialize();
/* Test runs until the callback setup() tells the test to stop. */ while (1) { @@ -215,7 +215,7 @@ int cat_val(struct resctrl_val_param *param, size_t span) } if (ret < 0) break; - ret = reset_enable_llc_perf(bm_pid, param->cpu_no); + ret = perf_open(bm_pid, param->cpu_no); if (ret) break;
@@ -234,7 +234,7 @@ int cat_val(struct resctrl_val_param *param, size_t span) return ret;
pe_close: - close(fd_lm); + close(pe_fd); return ret; }