Thread (21 messages) 21 messages, 3 authors, 2018-01-12

[bpf-next PATCH v2 7/7] bpf: sockmap set rlimit

STALE3188d

From: John Fastabend <john.fastabend@gmail.com>
Date: 2018-01-10 18:40:53
Subsystem: the rest · Maintainer: Linus Torvalds

Revision v2 of 2 in this series.

Revisions (2)
  1. v2 current
  2. v3 [diff vs current]
Avoid extra step of setting limit from cmdline and do it directly in
the program.

Signed-off-by: John Fastabend <john.fastabend@gmail.com>
---
 samples/sockmap/sockmap_user.c |    7 +++++++
 1 file changed, 7 insertions(+)
diff --git a/samples/sockmap/sockmap_user.c b/samples/sockmap/sockmap_user.c
index 9496b2c..16c19c5 100644
--- a/samples/sockmap/sockmap_user.c
+++ b/samples/sockmap/sockmap_user.c
@@ -27,6 +27,7 @@
 #include <time.h>
 
 #include <sys/time.h>
+#include <sys/resource.h>
 #include <sys/types.h>
 
 #include <linux/netlink.h>
@@ -437,6 +438,7 @@ enum {
 int main(int argc, char **argv)
 {
 	int iov_count = 1, length = 1024, rate = 1, verbose = 0;
+	struct rlimit r = {10 * 1024 * 1024, RLIM_INFINITY};
 	int opt, longindex, err, cg_fd = 0;
 	int test = PING_PONG;
 	char filename[256];
@@ -490,6 +492,11 @@ int main(int argc, char **argv)
 		return -1;
 	}
 
+	if (setrlimit(RLIMIT_MEMLOCK, &r)) {
+		perror("setrlimit(RLIMIT_MEMLOCK)");
+		return 1;
+	}
+
 	snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
 
 	running = 1;
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