Re: [PATCH net-next] samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp1

[David Miller]

From: Tushar Dave 
Date: Fri, 27 Oct 2017 16:12:30 -0700

> Default rlimit RLIMIT_MEMLOCK is 64KB, causes bpf map failure.
> e.g.
> [root@lab bpf]#./xdp1 -N $( failed to create a map: 1 Operation not permitted
> 
> Fix it.
> 
> Signed-off-by: Tushar Dave 

Applied.

Re: [PATCH net-next] samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp1

[Alexei Starovoitov]

On Fri, Oct 27, 2017 at 04:12:30PM -0700, Tushar Dave wrote:
> Default rlimit RLIMIT_MEMLOCK is 64KB, causes bpf map failure.
> e.g.
> [root@lab bpf]#./xdp1 -N $( failed to create a map: 1 Operation not permitted
> 
> Fix it.
> 
> Signed-off-by: Tushar Dave 

Acked-by: Alexei Starovoitov 

[PATCH net-next] samples/bpf: adjust rlimit RLIMIT_MEMLOCK for xdp1

[Tushar Dave]

Default rlimit RLIMIT_MEMLOCK is 64KB, causes bpf map failure.
e.g.
[root@lab bpf]#./xdp1 -N $(
---
 samples/bpf/xdp1_user.c | 8 
 1 file changed, 8 insertions(+)

diff --git a/samples/bpf/xdp1_user.c b/samples/bpf/xdp1_user.c
index 2431c03..fdaefe9 100644
--- a/samples/bpf/xdp1_user.c
+++ b/samples/bpf/xdp1_user.c
@@ -14,6 +14,7 @@
 #include 
 #include 
 #include 
+#include 
 
 #include "bpf_load.h"
 #include "bpf_util.h"
@@ -69,6 +70,7 @@ static void usage(const char *prog)
 
 int main(int argc, char **argv)
 {
+   struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
const char *optstr = "SN";
char filename[256];
int opt;
@@ -91,6 +93,12 @@ int main(int argc, char **argv)
usage(basename(argv[0]));
return 1;
}
+
+   if (setrlimit(RLIMIT_MEMLOCK, )) {
+   perror("setrlimit(RLIMIT_MEMLOCK)");
+   return 1;
+   }
+
ifindex = strtoul(argv[optind], NULL, 0);
 
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
-- 
1.9.1