David Venhoff cfcea9ee67 Initial commit
Based off b80915eb99
and compacted into a single commit so that it will fit on the uni git server
2025-08-11 13:05:09 +02:00

29 lines
907 B
C

#include <sys/resource.h>
#include <stdio.h>
static __attribute__((constructor)) void bpf_rlimit_ctor(void)
{
struct rlimit rlim_old, rlim_new = {
.rlim_cur = RLIM_INFINITY,
.rlim_max = RLIM_INFINITY,
};
getrlimit(RLIMIT_MEMLOCK, &rlim_old);
/* For the sake of running the test cases, we temporarily
* set rlimit to infinity in order for kernel to focus on
* errors from actual test cases and not getting noise
* from hitting memlock limits. The limit is on per-process
* basis and not a global one, hence destructor not really
* needed here.
*/
if (setrlimit(RLIMIT_MEMLOCK, &rlim_new) < 0) {
perror("Unable to lift memlock rlimit");
/* Trying out lower limit, but expect potential test
* case failures from this!
*/
rlim_new.rlim_cur = rlim_old.rlim_cur + (1UL << 20);
rlim_new.rlim_max = rlim_old.rlim_max + (1UL << 20);
setrlimit(RLIMIT_MEMLOCK, &rlim_new);
}
}