perf: Use POLLIN instead of POLL_IN for perf poll data in flag
authorJiri Olsa <jolsa@kernel.org>
Wed, 28 Jan 2015 17:54:38 +0000 (18:54 +0100)
committerIngo Molnar <mingo@kernel.org>
Wed, 4 Feb 2015 07:07:13 +0000 (08:07 +0100)
commit7c60fc0e022858e19c66289ec65cc3effc8c0b1f
tree695b6c3d9608feb6d4861bc29cee43b8d0caa081
parenta83fe28e2e45392464858a96745db26ac73670c8
perf: Use POLLIN instead of POLL_IN for perf poll data in flag

Currently we flag available data (via poll syscall) on perf fd with
POLL_IN macro, which is normally used for SIGIO interface.

We've been lucky, because POLLIN (0x1) is subset of POLL_IN (0x20001)
and sys_poll (do_pollfd function) cut the extra bit out (0x20000).

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1422467678-22341-1-git-send-email-jolsa@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
kernel/events/ring_buffer.c