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[1/2] cyclictest: Move main pid setaffinity handling into a function

Message ID 20210222152833.8758-3-schwenderjonathan@gmail.com
State New
Headers show
Series [1/2] cyclictest: Move main pid setaffinity handling into a function | expand

Commit Message

Jonathan Schwender Feb. 22, 2021, 3:28 p.m. UTC 
Move error handling for setting the affinity of the main pid
into a separate function.
This prevents duplicating the code in the next commit,
where the main thread pid can be restricted to one of
two bitmasks depending on the passed parameters.

Signed-off-by: Jonathan Schwender <schwenderjonathan@gmail.com>
---
 src/cyclictest/cyclictest.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)
diff mbox series

Patch

diff --git a/src/cyclictest/cyclictest.c b/src/cyclictest/cyclictest.c
index c3d45f3..3cd592d 100644
--- a/src/cyclictest/cyclictest.c
+++ b/src/cyclictest/cyclictest.c
@@ -1749,6 +1749,16 @@  static void write_stats(FILE *f, void *data)
 	fprintf(f, "  }\n");
 }
 
+static void set_main_thread_affinity(struct bitmask* cpumask) {
+	int res;
+
+	errno = 0;
+	res = numa_sched_setaffinity(getpid(), cpumask);
+	if (res != 0)
+		warn("Couldn't setaffinity in main thread: %s\n", strerror(errno));
+}
+
+
 int main(int argc, char **argv)
 {
 	sigset_t sigset;
@@ -1778,13 +1788,7 @@  int main(int argc, char **argv)
 
 	/* Restrict the main pid to the affinity specified by the user */
 	if (affinity_mask) {
-		int res;
-
-		errno = 0;
-		res = numa_sched_setaffinity(getpid(), affinity_mask);
-		if (res != 0)
-			warn("Couldn't setaffinity in main thread: %s\n", strerror(errno));
-
+		set_main_thread_affinity(affinity_mask);
 		if (verbose)
 			printf("Using %u cpus.\n",
 				numa_bitmask_weight(affinity_mask));