Commit c4eb7f46 authored by Jesper Dangaard Brouer's avatar Jesper Dangaard Brouer Committed by David S. Miller

samples/bpf: xdp_monitor increase memory rlimit

Other concurrent running programs, like perf or the XDP program what
needed to be monitored, might take up part of the max locked memory
limit.  Thus, the xdp_monitor tool have to set the RLIMIT_MEMLOCK to
RLIM_INFINITY, as it cannot determine a more sane limit.

Using the man exit(3) specified EXIT_FAILURE return exit code, and
correct other users too.
Signed-off-by: default avatarJesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 280b058d
...@@ -20,6 +20,7 @@ static const char *__doc_err_only__= ...@@ -20,6 +20,7 @@ static const char *__doc_err_only__=
#include <unistd.h> #include <unistd.h>
#include <locale.h> #include <locale.h>
#include <sys/resource.h>
#include <getopt.h> #include <getopt.h>
#include <net/if.h> #include <net/if.h>
#include <time.h> #include <time.h>
...@@ -295,6 +296,7 @@ static void print_bpf_prog_info(void) ...@@ -295,6 +296,7 @@ static void print_bpf_prog_info(void)
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
int longindex = 0, opt; int longindex = 0, opt;
int ret = EXIT_SUCCESS; int ret = EXIT_SUCCESS;
char bpf_obj_file[256]; char bpf_obj_file[256];
...@@ -325,13 +327,18 @@ int main(int argc, char **argv) ...@@ -325,13 +327,18 @@ int main(int argc, char **argv)
} }
} }
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK)");
return EXIT_FAILURE;
}
if (load_bpf_file(bpf_obj_file)) { if (load_bpf_file(bpf_obj_file)) {
printf("ERROR - bpf_log_buf: %s", bpf_log_buf); printf("ERROR - bpf_log_buf: %s", bpf_log_buf);
return 1; return EXIT_FAILURE;
} }
if (!prog_fd[0]) { if (!prog_fd[0]) {
printf("ERROR - load_bpf_file: %s\n", strerror(errno)); printf("ERROR - load_bpf_file: %s\n", strerror(errno));
return 1; return EXIT_FAILURE;
} }
if (debug) { if (debug) {
......
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