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authorMartin KaFai Lau <kafai@fb.com>2017-01-16 22:17:29 -0800
committerDavid S. Miller <davem@davemloft.net>2017-01-17 15:39:39 -0500
commit3fbfadce6012e7bb384b2e9ad47869d5177f7209 (patch)
treec768617d6b7949b5b4bb75c6b2e58b08b4e1f6ea /scripts/checksyscalls.sh
parentd5ff72d9af73bc3cbaa3edb541333a851f8c7295 (diff)
bpf: Fix test_lru_sanity5() in test_lru_map.c
test_lru_sanity5() fails when the number of online cpus is fewer than the number of possible cpus. It can be reproduced with qemu by using cmd args "--smp cpus=2,maxcpus=8". The problem is the loop in test_lru_sanity5() is testing 'i' which is incorrect. This patch: 1. Make sched_next_online() always return -1 if it cannot find a next cpu to schedule the process. 2. In test_lru_sanity5(), the parent process does sched_setaffinity() first (through sched_next_online()) and the forked process will inherit it according to the 'man sched_setaffinity'. Fixes: 5db58faf989f ("bpf: Add tests for the LRU bpf_htab") Reported-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Martin KaFai Lau <kafai@fb.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'scripts/checksyscalls.sh')
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