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bpf: samples: Do not touch RLIMIT_MEMLOCK

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Since bpf is not using rlimit memlock for the memory accounting
and control, do not change the limit in sample applications.

Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20201201215900.3569844-35-guro@fb.com
This commit is contained in:
Roman Gushchin 2020-12-01 13:59:00 -08:00 committed by Alexei Starovoitov
parent 3ac1f01b43
commit 5b0764b2d3
27 changed files with 0 additions and 133 deletions
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6
samples/bpf/map_perf_test_user.c
View File

@ -421,7 +421,6 @@ static void fixup_map(struct bpf_object *obj)
int main(int argc, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
int nr_cpus = sysconf(_SC_NPROCESSORS_ONLN);
struct bpf_link *links[8];
struct bpf_program *prog;
@ -430,11 +429,6 @@ int main(int argc, char **argv)
char filename[256];
int i = 0;
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK)");
return 1;
}
if (argc > 1)
test_flags = atoi(argv[1]) ? : test_flags;

6
samples/bpf/offwaketime_user.c
View File

@ -95,18 +95,12 @@ static void int_exit(int sig)
int main(int argc, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct bpf_object *obj = NULL;
struct bpf_link *links[2];
struct bpf_program *prog;
int delay = 1, i = 0;
char filename[256];
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK)");
return 1;
}
if (load_kallsyms()) {
printf("failed to process /proc/kallsyms\n");
return 2;

2
samples/bpf/sockex2_user.c
View File

@ -16,7 +16,6 @@ struct pair {
int main(int ac, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct bpf_object *obj;
int map_fd, prog_fd;
char filename[256];
@ -24,7 +23,6 @@ int main(int ac, char **argv)
FILE *f;
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
setrlimit(RLIMIT_MEMLOCK, &r);
if (bpf_prog_load(filename, BPF_PROG_TYPE_SOCKET_FILTER,
&obj, &prog_fd))

2
samples/bpf/sockex3_user.c
View File

@ -26,7 +26,6 @@ struct pair {
int main(int argc, char **argv)
{
int i, sock, key, fd, main_prog_fd, jmp_table_fd, hash_map_fd;
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct bpf_program *prog;
struct bpf_object *obj;
const char *section;
@ -34,7 +33,6 @@ int main(int argc, char **argv)
FILE *f;
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
setrlimit(RLIMIT_MEMLOCK, &r);
obj = bpf_object__open_file(filename, NULL);
if (libbpf_get_error(obj)) {

6
samples/bpf/spintest_user.c
View File

@ -10,7 +10,6 @@
int main(int ac, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
char filename[256], symbol[256];
struct bpf_object *obj = NULL;
struct bpf_link *links[20];
@ -20,11 +19,6 @@ int main(int ac, char **argv)
const char *section;
struct ksym *sym;
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK)");
return 1;
}
if (load_kallsyms()) {
printf("failed to process /proc/kallsyms\n");
return 2;

2
samples/bpf/syscall_tp_user.c
View File

@ -115,7 +115,6 @@ static int test(char *filename, int num_progs)
int main(int argc, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
int opt, num_progs = 1;
char filename[256];
@ -131,7 +130,6 @@ int main(int argc, char **argv)
}
}
setrlimit(RLIMIT_MEMLOCK, &r);
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
return test(filename, num_progs);

6
samples/bpf/task_fd_query_user.c
View File

@ -310,7 +310,6 @@ static int test_debug_fs_uprobe(char *binary_path, long offset, bool is_return)
int main(int argc, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
extern char __executable_start;
char filename[256], buf[256];
__u64 uprobe_file_offset;
@ -318,11 +317,6 @@ int main(int argc, char **argv)
struct bpf_object *obj;
int i = 0, err = -1;
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK)");
return err;
}
if (load_kallsyms()) {
printf("failed to process /proc/kallsyms\n");
return err;

3
samples/bpf/test_lru_dist.c
View File

@ -489,7 +489,6 @@ static void test_parallel_lru_loss(int map_type, int map_flags, int nr_tasks)
int main(int argc, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
int map_flags[] = {0, BPF_F_NO_COMMON_LRU};
const char *dist_file;
int nr_tasks = 1;
@ -508,8 +507,6 @@ int main(int argc, char **argv)
setbuf(stdout, NULL);
assert(!setrlimit(RLIMIT_MEMLOCK, &r));
srand(time(NULL));
nr_cpus = bpf_num_possible_cpus();

6
samples/bpf/test_map_in_map_user.c
View File

@ -114,17 +114,11 @@ static void test_map_in_map(void)
int main(int argc, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct bpf_link *link = NULL;
struct bpf_program *prog;
struct bpf_object *obj;
char filename[256];
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK)");
return 1;
}
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
obj = bpf_object__open_file(filename, NULL);
if (libbpf_get_error(obj)) {

2
samples/bpf/test_overhead_user.c
View File

@ -162,13 +162,11 @@ static void unload_progs(void)
int main(int argc, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
int num_cpu = sysconf(_SC_NPROCESSORS_ONLN);
int test_flags = ~0;
char filename[256];
int err = 0;
setrlimit(RLIMIT_MEMLOCK, &r);
if (argc > 1)
test_flags = atoi(argv[1]) ? : test_flags;

2
samples/bpf/trace_event_user.c
View File

@ -294,13 +294,11 @@ static void test_bpf_perf_event(void)
int main(int argc, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct bpf_object *obj = NULL;
char filename[256];
int error = 1;
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
setrlimit(RLIMIT_MEMLOCK, &r);
signal(SIGINT, err_exit);
signal(SIGTERM, err_exit);

6
samples/bpf/tracex2_user.c
View File

@ -116,7 +116,6 @@ static void int_exit(int sig)
int main(int ac, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
long key, next_key, value;
struct bpf_link *links[2];
struct bpf_program *prog;
@ -125,11 +124,6 @@ int main(int ac, char **argv)
int i, j = 0;
FILE *f;
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK)");
return 1;
}
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
obj = bpf_object__open_file(filename, NULL);
if (libbpf_get_error(obj)) {

6
samples/bpf/tracex3_user.c
View File

@ -107,7 +107,6 @@ static void print_hist(int fd)
int main(int ac, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct bpf_link *links[2];
struct bpf_program *prog;
struct bpf_object *obj;
@ -127,11 +126,6 @@ int main(int ac, char **argv)
}
}
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK)");
return 1;
}
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
obj = bpf_object__open_file(filename, NULL);
if (libbpf_get_error(obj)) {

6
samples/bpf/tracex4_user.c
View File

@ -48,18 +48,12 @@ static void print_old_objects(int fd)
int main(int ac, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct bpf_link *links[2];
struct bpf_program *prog;
struct bpf_object *obj;
char filename[256];
int map_fd, i, j = 0;
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK, RLIM_INFINITY)");
return 1;
}
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
obj = bpf_object__open_file(filename, NULL);
if (libbpf_get_error(obj)) {

3
samples/bpf/tracex5_user.c
View File

@ -34,7 +34,6 @@ static void install_accept_all_seccomp(void)
int main(int ac, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct bpf_link *link = NULL;
struct bpf_program *prog;
struct bpf_object *obj;
@ -43,8 +42,6 @@ int main(int ac, char **argv)
char filename[256];
FILE *f;
setrlimit(RLIMIT_MEMLOCK, &r);
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
obj = bpf_object__open_file(filename, NULL);
if (libbpf_get_error(obj)) {

3
samples/bpf/tracex6_user.c
View File

@ -175,15 +175,12 @@ static void test_bpf_perf_event(void)
int main(int argc, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct bpf_link *links[2];
struct bpf_program *prog;
struct bpf_object *obj;
char filename[256];
int i = 0;
setrlimit(RLIMIT_MEMLOCK, &r);
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
obj = bpf_object__open_file(filename, NULL);
if (libbpf_get_error(obj)) {

6
samples/bpf/xdp1_user.c
View File

@ -79,7 +79,6 @@ static void usage(const char *prog)
int main(int argc, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct bpf_prog_load_attr prog_load_attr = {
.prog_type = BPF_PROG_TYPE_XDP,
};
@ -117,11 +116,6 @@ int main(int argc, char **argv)
return 1;
}
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK)");
return 1;
}
ifindex = if_nametoindex(argv[optind]);
if (!ifindex) {
perror("if_nametoindex");

6
samples/bpf/xdp_adjust_tail_user.c
View File

@ -82,7 +82,6 @@ static void usage(const char *cmd)
int main(int argc, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct bpf_prog_load_attr prog_load_attr = {
.prog_type = BPF_PROG_TYPE_XDP,
};
@ -143,11 +142,6 @@ int main(int argc, char **argv)
}
}
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK, RLIM_INFINITY)");
return 1;
}
if (!ifindex) {
fprintf(stderr, "Invalid ifname\n");
return 1;

5
samples/bpf/xdp_monitor_user.c
View File

@ -687,7 +687,6 @@ static void print_bpf_prog_info(void)
int main(int argc, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct bpf_program *prog;
int longindex = 0, opt;
int ret = EXIT_FAILURE;
@ -719,10 +718,6 @@ int main(int argc, char **argv)
}
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK)");
return ret;
}
/* Remove tracepoint program when program is interrupted or killed */
signal(SIGINT, int_exit);

6
samples/bpf/xdp_redirect_cpu_user.c
View File

@ -765,7 +765,6 @@ static int load_cpumap_prog(char *file_name, char *prog_name,
int main(int argc, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
char *prog_name = "xdp_cpu_map5_lb_hash_ip_pairs";
char *mprog_filename = "xdp_redirect_kern.o";
char *redir_interface = NULL, *redir_map = NULL;
@ -804,11 +803,6 @@ int main(int argc, char **argv)
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
prog_load_attr.file = filename;
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK)");
return 1;
}
if (bpf_prog_load_xattr(&prog_load_attr, &obj, &prog_fd))
return err;

6
samples/bpf/xdp_redirect_map_user.c
View File

@ -96,7 +96,6 @@ static void usage(const char *prog)
int main(int argc, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct bpf_prog_load_attr prog_load_attr = {
.prog_type = BPF_PROG_TYPE_XDP,
};
@ -135,11 +134,6 @@ int main(int argc, char **argv)
return 1;
}
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK)");
return 1;
}
ifindex_in = if_nametoindex(argv[optind]);
if (!ifindex_in)
ifindex_in = strtoul(argv[optind], NULL, 0);

6
samples/bpf/xdp_redirect_user.c
View File

@ -97,7 +97,6 @@ static void usage(const char *prog)
int main(int argc, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct bpf_prog_load_attr prog_load_attr = {
.prog_type = BPF_PROG_TYPE_XDP,
};
@ -136,11 +135,6 @@ int main(int argc, char **argv)
return 1;
}
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK)");
return 1;
}
ifindex_in = if_nametoindex(argv[optind]);
if (!ifindex_in)
ifindex_in = strtoul(argv[optind], NULL, 0);

6
samples/bpf/xdp_router_ipv4_user.c
View File

@ -625,7 +625,6 @@ static void usage(const char *prog)
int main(int ac, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct bpf_prog_load_attr prog_load_attr = {
.prog_type = BPF_PROG_TYPE_XDP,
};
@ -670,11 +669,6 @@ int main(int ac, char **argv)
return 1;
}
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK)");
return 1;
}
if (bpf_prog_load_xattr(&prog_load_attr, &obj, &prog_fd))
return 1;

6
samples/bpf/xdp_rxq_info_user.c
View File

@ -450,7 +450,6 @@ static void stats_poll(int interval, int action, __u32 cfg_opt)
int main(int argc, char **argv)
{
__u32 cfg_options= NO_TOUCH ; /* Default: Don't touch packet memory */
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct bpf_prog_load_attr prog_load_attr = {
.prog_type = BPF_PROG_TYPE_XDP,
};
@ -474,11 +473,6 @@ int main(int argc, char **argv)
snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]);
prog_load_attr.file = filename;
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK)");
return 1;
}
if (bpf_prog_load_xattr(&prog_load_attr, &obj, &prog_fd))
return EXIT_FAIL;

6
samples/bpf/xdp_sample_pkts_user.c
View File

@ -109,7 +109,6 @@ static void usage(const char *prog)
int main(int argc, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
struct bpf_prog_load_attr prog_load_attr = {
.prog_type = BPF_PROG_TYPE_XDP,
};
@ -143,11 +142,6 @@ 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]);
prog_load_attr.file = filename;

6
samples/bpf/xdp_tx_iptunnel_user.c
View File

@ -155,7 +155,6 @@ int main(int argc, char **argv)
struct bpf_prog_load_attr prog_load_attr = {
.prog_type = BPF_PROG_TYPE_XDP,
};
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
int min_port = 0, max_port = 0, vip2tnl_map_fd;
const char *optstr = "i:a:p:s:d:m:T:P:FSNh";
unsigned char opt_flags[256] = {};
@ -254,11 +253,6 @@ int main(int argc, char **argv)
}
}
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
perror("setrlimit(RLIMIT_MEMLOCK, RLIM_INFINITY)");
return 1;
}
if (!ifindex) {
fprintf(stderr, "Invalid ifname\n");
return 1;

7
samples/bpf/xdpsock_user.c
View File

@ -1489,7 +1489,6 @@ static void apply_setsockopt(struct xsk_socket_info *xsk)
int main(int argc, char **argv)
{
struct rlimit r = {RLIM_INFINITY, RLIM_INFINITY};
bool rx = false, tx = false;
struct xsk_umem_info *umem;
struct bpf_object *obj;
@ -1499,12 +1498,6 @@ int main(int argc, char **argv)
parse_command_line(argc, argv);
if (setrlimit(RLIMIT_MEMLOCK, &r)) {
fprintf(stderr, "ERROR: setrlimit(RLIMIT_MEMLOCK) \"%s\"\n",
strerror(errno));
exit(EXIT_FAILURE);
}
if (opt_num_xsks > 1)
load_xdp_program(argv, &obj);