Arnaldo Carvalho de Melo 5620196951 perf: Make perf_event_output() propagate the output() return ... For the original mode of operation it isn't needed, since we report back errors via PERF_RECORD_LOST records in the ring buffer, but for use in bpf_perf_event_output() it is convenient to return the errors, basically -ENOSPC. Currently bpf_perf_event_output() returns an error indication, the last thing it does, which is to push it to the ring buffer is that can fail and if so, this failure won't be reported back to its users, fix it. Reported-by: Jamal Hadi Salim <jhs@mojatatu.com> Tested-by: Jamal Hadi Salim <jhs@mojatatu.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/r/20190118150938.GN5823@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2019-01-21 17:00:57 -03:00
..
callchain.c	treewide: convert ISO_8859-1 text comments to utf-8	2018-08-23 18:48:43 -07:00
core.c	perf: Make perf_event_output() propagate the output() return	2019-01-21 17:00:57 -03:00
hw_breakpoint.c	perf: Fix typos in comments	2018-12-03 11:22:32 +01:00
internal.h
Makefile
ring_buffer.c	perf: Suppress AUX/OVERWRITE records	2018-09-18 17:21:13 -03:00
uprobes.c	mm/mmu_notifier: use structure for invalidate_range_start/end calls v2	2018-12-28 12:11:50 -08:00