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Commit 262f9d81 authored by Eric Dumazet's avatar Eric Dumazet Committed by Daniel Borkmann
Browse files

bpf: do not blindly change rlimit in reuseport net selftest 



If the current process has unlimited RLIMIT_MEMLOCK,
we should should leave it as is.

Fixes: 941ff6f1 ("bpf: fix rlimit in reuseport net selftest")
Signed-off-by: default avatarJohn Sperbeck <jsperbeck@google.com>
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Acked-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
parent e2a322a0

tools/testing/selftests/net/reuseport_bpf.c

+9 −4
Original line number Diff line number Diff line
@@ -437,15 +437,20 @@ void enable_fastopen(void) 
	}

}



static struct rlimit rlim_old, rlim_new;

static struct rlimit rlim_old;



static  __attribute__((constructor)) void main_ctor(void)

{

	getrlimit(RLIMIT_MEMLOCK, &rlim_old);



	if (rlim_old.rlim_cur != RLIM_INFINITY) {

		struct rlimit rlim_new;



		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);

	}

}



static __attribute__((destructor)) void main_dtor(void)

{