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David Carrillo-Cisneros 8fc31ce889 perf/core: Remove invalid warning from list_update_cgroup_even()t 
The warning introduced in commit:

  864c2357ca ("perf/core: Do not set cpuctx->cgrp for unscheduled cgroups")

assumed that a cgroup switch always precedes list_del_event. This is
not the case. Remove warning.

Make sure that cpuctx->cgrp is NULL until a cgroup event is sched in
or ctx->nr_cgroups == 0.

Signed-off-by: David Carrillo-Cisneros <davidcc@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Nilay Vaish <nilayvaish@gmail.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi V Shankar <ravi.v.shankar@intel.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vegard Nossum <vegard.nossum@gmail.com>
Cc: Vikas Shivappa <vikas.shivappa@linux.intel.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/1480841177-27299-1-git-send-email-davidcc@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
 		2016-12-06 09:44:29 +01:00
..
Makefile ftrace: allow architectures to specify ftrace compile options 2015-01-29 09:19:19 +01:00
callchain.c perf core: Per event callchain limit 2016-05-30 12:41:44 -03:00
core.c perf/core: Remove invalid warning from list_update_cgroup_even()t 2016-12-06 09:44:29 +01:00
hw_breakpoint.c perf: Collapse and fix event_function_call() users 2016-01-21 18:54:24 +01:00
internal.h bpf, events: fix offset in skb copy handler 2016-07-25 10:34:11 -07:00
ring_buffer.c perf/core: Fix aux_mmap_count vs aux_refcount order 2016-09-10 11:15:36 +02:00
uprobes.c mm: replace get_user_pages_remote() write/force parameters with gup_flags 2016-10-19 08:12:02 -07:00