ARM: 7698/1: perf: fix group validation when using enable_on_exec
authorWill Deacon <will.deacon@arm.com>
Fri, 12 Apr 2013 18:04:19 +0000 (19:04 +0100)
committerRussell King <rmk+kernel@arm.linux.org.uk>
Wed, 17 Apr 2013 15:54:07 +0000 (16:54 +0100)
commitcb2d8b342aa084d1f3ac29966245dec9163677fb
tree0604b13530fba679379275a8af38a68c0ec3ac1c
parent50acff3c1f9ee9753684e676929b82926f15966c
ARM: 7698/1: perf: fix group validation when using enable_on_exec

Events may be created with attr->disabled == 1 and attr->enable_on_exec
== 1, which confuses the group validation code because events with the
PERF_EVENT_STATE_OFF are not considered candidates for scheduling, which
may lead to failure at group scheduling time.

This patch fixes the validation check for ARM, so that events in the
OFF state are still considered when enable_on_exec is true.

Cc: stable@vger.kernel.org
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Jiri Olsa <jolsa@redhat.com>
Reported-by: Sudeep KarkadaNagesha <Sudeep.KarkadaNagesha@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
arch/arm/kernel/perf_event.c