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Date:   Fri,  1 Dec 2023 15:50:25 -0800
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Subject: [PATCH v1 3/9] perf tests: Avoid fork in perf_has_symbol test
From:   Ian Rogers <irogers@google.com>
To:     Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@redhat.com>,
        Arnaldo Carvalho de Melo <acme@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Jiri Olsa <jolsa@kernel.org>,
        Namhyung Kim <namhyung@kernel.org>,
        Ian Rogers <irogers@google.com>,
        Adrian Hunter <adrian.hunter@intel.com>,
        Nathan Chancellor <nathan@kernel.org>,
        Nick Desaulniers <ndesaulniers@google.com>,
        Tom Rix <trix@redhat.com>,
        Ravi Bangoria <ravi.bangoria@amd.com>,
        James Clark <james.clark@arm.com>,
        Kan Liang <kan.liang@linux.intel.com>,
        John Garry <john.g.garry@oracle.com>,
        linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
        llvm@lists.linux.dev
Content-Type: text/plain; charset="UTF-8"
Precedence: bulk

perf test -vv Symbols is used to indentify symbols within the perf
binary. Add the -F flag so that the test command doesn't fork the test
before running. This removes a little overhead.

Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/tests/shell/lib/perf_has_symbol.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/tests/shell/lib/perf_has_symbol.sh b/tools/perf/tests/shell/lib/perf_has_symbol.sh
index 5d59c32ae3e7..561c93b75d77 100644
--- a/tools/perf/tests/shell/lib/perf_has_symbol.sh
+++ b/tools/perf/tests/shell/lib/perf_has_symbol.sh
@@ -3,7 +3,7 @@
 
 perf_has_symbol()
 {
-	if perf test -vv "Symbols" 2>&1 | grep "[[:space:]]$1$"; then
+	if perf test -vv -F "Symbols" 2>&1 | grep "[[:space:]]$1$"; then
 		echo "perf does have symbol '$1'"
 		return 0
 	fi
-- 
2.43.0.rc2.451.g8631bc7472-goog