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#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);
}
}
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