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authorFrederic Weisbecker <fweisbec@gmail.com>2010-01-09 20:04:47 +0100
committerFrederic Weisbecker <fweisbec@gmail.com>2010-01-16 12:27:42 +0100
commit889ff0150661512d79484219612b7e2e024b6c07 (patch)
tree6343ad7386aa3aefa7fe3f8ab9389f6abec1d141 /include
parent881516eb828a3f7276c378bcef96b7788fc99016 (diff)
perf/core: Split context's event group list into pinned and non-pinned lists
Split-up struct perf_event_context::group_list into pinned_groups and flexible_groups (non-pinned). This first appears to be useless as it duplicates various loops around the group list handlings. But it scales better in the fast-path in perf_sched_in(). We don't anymore iterate twice through the entire list to separate pinned and non-pinned scheduling. Instead we interate through two distinct lists. The another desired effect is that it makes easier to define distinct scheduling rules on both. Changes in v2: - Respectively rename pinned_grp_list and volatile_grp_list into pinned_groups and flexible_groups as per Ingo suggestion. - Various cleanups Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/perf_event.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 9a1d276db754..cdbc2aa64a0b 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -683,7 +683,8 @@ struct perf_event_context {
*/
struct mutex mutex;
- struct list_head group_list;
+ struct list_head pinned_groups;
+ struct list_head flexible_groups;
struct list_head event_list;
int nr_events;
int nr_active;