perf/x86: Reject non sampling events with precise_ip
authorJiri Olsa <jolsa@redhat.com>
Tue, 3 Jan 2017 14:24:54 +0000 (15:24 +0100)
committerIngo Molnar <mingo@kernel.org>
Sat, 14 Jan 2017 10:06:50 +0000 (11:06 +0100)
commit18e7a45af91acdde99d3aa1372cc40e1f8142f7b
tree92cd4d70fa72de908bd1376041cd84ab1829b5f1
parent475113d937adfd150eb82b5e2c5507125a68e7af
perf/x86: Reject non sampling events with precise_ip

As Peter suggested [1] rejecting non sampling PEBS events,
because they dont make any sense and could cause bugs
in the NMI handler [2].

  [1] http://lkml.kernel.org/r/20170103094059.GC3093@worktop
  [2] http://lkml.kernel.org/r/1482931866-6018-3-git-send-email-jolsa@kernel.org

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vince@deater.net>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/20170103142454.GA26251@krava
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arch/x86/events/core.c