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| author | Martin KaFai Lau <[email protected]> | 2017-01-17 06:17:29 +0000 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2017-01-17 20:39:39 +0000 |
| commit | 3fbfadce6012e7bb384b2e9ad47869d5177f7209 (patch) | |
| tree | c768617d6b7949b5b4bb75c6b2e58b08b4e1f6ea /drivers/net/xen-netback/interface.c | |
| parent | vxlan: fix byte order of vxlan-gpe port number (diff) | |
| download | kernel-3fbfadce6012e7bb384b2e9ad47869d5177f7209.tar.gz kernel-3fbfadce6012e7bb384b2e9ad47869d5177f7209.zip | |
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 <[email protected]>
Signed-off-by: Martin KaFai Lau <[email protected]>
Acked-by: Daniel Borkmann <[email protected]>
Acked-by: Alexei Starovoitov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'drivers/net/xen-netback/interface.c')
0 files changed, 0 insertions, 0 deletions