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fe8d662aef
Unify memlock handling into bpf_rlimit.h and replace all occurences in BPF kselftests with it. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org>
28 lines
907 B
C
28 lines
907 B
C
#include <sys/resource.h>
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#include <stdio.h>
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static __attribute__((constructor)) void bpf_rlimit_ctor(void)
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{
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struct rlimit rlim_old, rlim_new = {
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.rlim_cur = RLIM_INFINITY,
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.rlim_max = RLIM_INFINITY,
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};
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getrlimit(RLIMIT_MEMLOCK, &rlim_old);
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/* For the sake of running the test cases, we temporarily
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* set rlimit to infinity in order for kernel to focus on
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* errors from actual test cases and not getting noise
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* from hitting memlock limits. The limit is on per-process
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* basis and not a global one, hence destructor not really
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* needed here.
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*/
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if (setrlimit(RLIMIT_MEMLOCK, &rlim_new) < 0) {
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perror("Unable to lift memlock rlimit");
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/* Trying out lower limit, but expect potential test
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* case failures from this!
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*/
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rlim_new.rlim_cur = rlim_old.rlim_cur + (1UL << 20);
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rlim_new.rlim_max = rlim_old.rlim_max + (1UL << 20);
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setrlimit(RLIMIT_MEMLOCK, &rlim_new);
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}
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}
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