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3dca21156b
Simplify bpf_perf_event_read_simple() a bit and fix up some minor things along the way: the return code in the header is not of type int but enum bpf_perf_event_ret instead. Once callback indicated to break the loop walking event data, it also needs to be consumed in data_tail since it has been processed already. Moreover, bpf_perf_event_print_t callback should avoid void * as we actually get a pointer to struct perf_event_header and thus applications can make use of container_of() to have type checks. The walk also doesn't have to use modulo op since the ring size is required to be power of two. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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| accounting | ||
| arch | ||
| bpf | ||
| build | ||
| cgroup | ||
| firewire | ||
| gpio | ||
| hv | ||
| iio | ||
| include | ||
| kvm/kvm_stat | ||
| laptop | ||
| leds | ||
| lib | ||
| memory-model | ||
| nfsd | ||
| objtool | ||
| pci | ||
| pcmcia | ||
| perf | ||
| power | ||
| scripts | ||
| spi | ||
| testing | ||
| thermal/tmon | ||
| time | ||
| usb | ||
| virtio | ||
| vm | ||
| wmi | ||
| Makefile | ||