samples/bpf: Set rlimit for memlock to infinity in all samples
The memlock rlimit is a notorious source of failure for BPF programs. Most of the samples just set it to infinity, but a few used a lower limit. The problem with unconditionally setting a lower limit is that this will also override the limit if the system-wide setting is *higher* than the limit being set, which can lead to failures on systems that lock a lot of memory, but set 'ulimit -l' to unlimited before running a sample. One fix for this is to only conditionally set the limit if the current limit is lower, but it is simpler to just unify all the samples and have them all set the limit to infinity. Signed-off-by: NToke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net> Acked-by: NAndrii Nakryiko <andrii@kernel.org> Acked-by: NJesper Dangaard Brouer <brouer@redhat.com> Link: https://lore.kernel.org/bpf/20201026233623.91728-1-toke@redhat.com
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