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| author | Eric Dumazet <edumazet@google.com> | 2018-10-05 19:38:46 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2018-10-08 10:30:55 +0200 |
| commit | 262f9d811c7608f1e74258ceecfe1fa213bdf912 (patch) | |
| tree | 34c246bea7c2c7a7b737e879118098bb521b797a /tools | |
| parent | e2a322a0c8ce3d825e8a56c063ce3f81b719083c (diff) | |
| download | linux-0-day-262f9d811c7608f1e74258ceecfe1fa213bdf912.tar.gz linux-0-day-262f9d811c7608f1e74258ceecfe1fa213bdf912.tar.xz | |
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: 941ff6f11c02 ("bpf: fix rlimit in reuseport net selftest")
Signed-off-by: John Sperbeck <jsperbeck@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/net/reuseport_bpf.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/tools/testing/selftests/net/reuseport_bpf.c b/tools/testing/selftests/net/reuseport_bpf.c index cad14cd0ea922..b5277106df1fd 100644 --- a/tools/testing/selftests/net/reuseport_bpf.c +++ b/tools/testing/selftests/net/reuseport_bpf.c @@ -437,14 +437,19 @@ 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); - 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); + + 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) |