diff options
| author | Yang Jihong <yangjihong1@huawei.com> | 2023-10-23 03:31:44 +0000 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2023-10-25 10:02:11 -0700 |
| commit | e093a222d7cba1eb6c36887e58ce8a4ff249f1c6 (patch) | |
| tree | e5f841d46f7c6384e393085e204e02a0ba16f5c9 /tools/perf/util/evsel.c | |
| parent | 79a3371bdf453bedb9d2c80df5adc201dddc11b5 (diff) | |
perf evsel: Rename evsel__increase_rlimit to rlimit__increase_nofile
evsel__increase_rlimit() helper does nothing with evsel, and description
of the functionality is inaccurate, rename it and move to util/rlimit.c.
By the way, fix a checkppatch warning about misplaced license tag:
WARNING: Misplaced SPDX-License-Identifier tag - use line 1 instead
#160: FILE: tools/perf/util/rlimit.h:3:
/* SPDX-License-Identifier: LGPL-2.1 */
No functional change.
Signed-off-by: Yang Jihong <yangjihong1@huawei.com>
Link: https://lore.kernel.org/r/20231023033144.1011896-1-yangjihong1@huawei.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Diffstat (limited to 'tools/perf/util/evsel.c')
| -rw-r--r-- | tools/perf/util/evsel.c | 30 |
1 files changed, 2 insertions, 28 deletions
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c index d5363d23f5d3..72a5dfc38d38 100644 --- a/tools/perf/util/evsel.c +++ b/tools/perf/util/evsel.c @@ -49,6 +49,7 @@ #include "off_cpu.h" #include "pmu.h" #include "pmus.h" +#include "rlimit.h" #include "../perf-sys.h" #include "util/parse-branch-options.h" #include "util/bpf-filter.h" @@ -1989,33 +1990,6 @@ bool evsel__detect_missing_features(struct evsel *evsel) } } -bool evsel__increase_rlimit(enum rlimit_action *set_rlimit) -{ - int old_errno; - struct rlimit l; - - if (*set_rlimit < INCREASED_MAX) { - old_errno = errno; - - if (getrlimit(RLIMIT_NOFILE, &l) == 0) { - if (*set_rlimit == NO_CHANGE) { - l.rlim_cur = l.rlim_max; - } else { - l.rlim_cur = l.rlim_max + 1000; - l.rlim_max = l.rlim_cur; - } - if (setrlimit(RLIMIT_NOFILE, &l) == 0) { - (*set_rlimit) += 1; - errno = old_errno; - return true; - } - } - errno = old_errno; - } - - return false; -} - static int evsel__open_cpu(struct evsel *evsel, struct perf_cpu_map *cpus, struct perf_thread_map *threads, int start_cpu_map_idx, int end_cpu_map_idx) @@ -2143,7 +2117,7 @@ try_fallback: * perf stat needs between 5 and 22 fds per CPU. When we run out * of them try to increase the limits. */ - if (err == -EMFILE && evsel__increase_rlimit(&set_rlimit)) + if (err == -EMFILE && rlimit__increase_nofile(&set_rlimit)) goto retry_open; if (err != -EINVAL || idx > 0 || thread > 0) |