diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2012-03-22 17:26:36 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-03-23 09:52:16 +0100 |
| commit | c7206205d00ab375839bd6c7ddb247d600693c09 (patch) | |
| tree | 24b9d66a5eaef77c1fc40bc8f6f28acfd167bf5b /kernel/trace | |
| parent | c5bc437702b24817cabd65a6a57971ff91a7712c (diff) | |
perf: Fix mmap_page capabilities and docs
Complete the syscall-less self-profiling feature and address
all complaints, namely:
- capabilities, so we can detect what is actually available at runtime
Add a capabilities field to perf_event_mmap_page to indicate
what is actually available for use.
- on x86: RDPMC weirdness due to being 40/48 bits and not sign-extending
properly.
- ABI documentation as to how all this stuff works.
Also improve the documentation for the new features.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Cc: Vince Weaver <vweaver1@eecs.utk.edu>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1332433596.2487.33.camel@twins
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/trace')
0 files changed, 0 insertions, 0 deletions