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authorDavidlohr Bueso <dave@stgolabs.net>2017-09-08 16:14:58 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-09-08 18:26:49 -0700
commit2161573ecd6931565936cb66793b2d2bf805c088 (patch)
treed20a0edb400805effb57590e6faa20e8630701d6 /kernel/sched/sched.h
parentbfb068892d30dcf0a32b89302fe293347adeaaaa (diff)
sched/deadline: replace earliest dl and rq leftmost caching
... with the generic rbtree flavor instead. No changes in semantics whatsoever. Link: http://lkml.kernel.org/r/20170719014603.19029-9-dave@stgolabs.net Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/sched/sched.h')
-rw-r--r--kernel/sched/sched.h6
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index c30c57563dbc..746ac78ff492 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -549,8 +549,7 @@ struct rt_rq {
/* Deadline class' related fields in a runqueue */
struct dl_rq {
/* runqueue is an rbtree, ordered by deadline */
- struct rb_root rb_root;
- struct rb_node *rb_leftmost;
+ struct rb_root_cached root;
unsigned long dl_nr_running;
@@ -574,8 +573,7 @@ struct dl_rq {
* an rb-tree, ordered by tasks' deadlines, with caching
* of the leftmost (earliest deadline) element.
*/
- struct rb_root pushable_dl_tasks_root;
- struct rb_node *pushable_dl_tasks_leftmost;
+ struct rb_root_cached pushable_dl_tasks_root;
#else
struct dl_bw dl_bw;
#endif