diff options
| author | Ian Rogers <irogers@google.com> | 2023-05-26 11:33:57 -0700 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2023-05-28 10:24:14 -0300 |
| commit | 370ce164defd18069518e8b7faa6c92aad740257 (patch) | |
| tree | b853ccd123d6a812ea5724991773e48255309780 /tools/perf/builtin-help.c | |
| parent | 430952e6d7a02bbf4d2d4a6d3baa7ce4b66052d7 (diff) | |
perf path: Make mkpath thread safe, remove 16384 bytes from .bss
Avoid 4 static arrays for paths, pass in a char[] buffer to use. Makes
mkpath thread safe for the small number of users. Also removes 16,384
bytes from .bss.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: K Prateek Nayak <kprateek.nayak@amd.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Ross Zwisler <zwisler@chromium.org>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Yang Jihong <yangjihong1@huawei.com>
Link: https://lore.kernel.org/r/20230526183401.2326121-13-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-help.c')
| -rw-r--r-- | tools/perf/builtin-help.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c index 3e7f52054fac..b2a368ae295a 100644 --- a/tools/perf/builtin-help.c +++ b/tools/perf/builtin-help.c @@ -19,6 +19,7 @@ #include <linux/string.h> #include <linux/zalloc.h> #include <errno.h> +#include <limits.h> #include <stdio.h> #include <stdlib.h> #include <string.h> @@ -389,9 +390,10 @@ static int get_html_page_path(char **page_path, const char *page) { struct stat st; const char *html_path = system_path(PERF_HTML_PATH); + char path[PATH_MAX]; /* Check that we have a perf documentation directory. */ - if (stat(mkpath("%s/perf.html", html_path), &st) + if (stat(mkpath(path, sizeof(path), "%s/perf.html", html_path), &st) || !S_ISREG(st.st_mode)) { pr_err("'%s': not a documentation directory.", html_path); return -1; |