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| author | Hou Tao <houtao1@huawei.com> | 2022-11-16 15:23:48 +0800 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2022-11-17 15:46:05 -0800 |
| commit | 689eb2f1ba46b4b02195ac2a71c55b96d619ebf8 (patch) | |
| tree | 8aba35574e6ce78c84fe6c49f300478d0fe4834d /tools/lib/bpf/ringbuf.c | |
| parent | 47df8a2f78bc34ff170d147d05b121f84e252b85 (diff) | |
| download | linux-689eb2f1ba46b4b02195ac2a71c55b96d619ebf8.tar.gz linux-689eb2f1ba46b4b02195ac2a71c55b96d619ebf8.tar.bz2 linux-689eb2f1ba46b4b02195ac2a71c55b96d619ebf8.zip | |
libbpf: Use page size as max_entries when probing ring buffer map
Using page size as max_entries when probing ring buffer map, else the
probe may fail on host with 64KB page size (e.g., an ARM64 host).
After the fix, the output of "bpftool feature" on above host will be
correct.
Before :
eBPF map_type ringbuf is NOT available
eBPF map_type user_ringbuf is NOT available
After :
eBPF map_type ringbuf is available
eBPF map_type user_ringbuf is available
Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20221116072351.1168938-2-houtao@huaweicloud.com
Diffstat (limited to 'tools/lib/bpf/ringbuf.c')
0 files changed, 0 insertions, 0 deletions