perf evlist: Do not poll events that use the system_wide flag
authorAdrian Hunter <adrian.hunter@intel.com>
Tue, 11 Nov 2014 14:16:39 +0000 (16:16 +0200)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Wed, 19 Nov 2014 15:33:48 +0000 (12:33 -0300)
commitf90d194a867a5a1db51789b8c4e99bcd196be6bb
treed5ae1ebfdc831aea8c064f5c18ec552747d6b0c2
parentf140373bc904d9541e3f8e985d3810864e34c735
perf evlist: Do not poll events that use the system_wide flag

The system_wide flag causes a selected event to be opened always without
a pid.

Consequently it will never get a POLLHUP, but it is used for tracking in
combination with other events, so it should not need to be polled
anyway.

Therefore don't add it for polling.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1415715423-15563-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/util/evlist.c