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| author | Davidlohr Bueso <dave@stgolabs.net> | 2017-09-08 16:15:01 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-09-08 18:26:49 -0700 |
| commit | a23ba907d5e65d6aeea3e59c82fda9cd206a7aad (patch) | |
| tree | a0bd42b27596cf758517fa004d1d8681a7eef932 /include/linux/sched.h | |
| parent | 2161573ecd6931565936cb66793b2d2bf805c088 (diff) | |
| download | linux-a23ba907d5e65d6aeea3e59c82fda9cd206a7aad.tar.gz linux-a23ba907d5e65d6aeea3e59c82fda9cd206a7aad.tar.bz2 linux-a23ba907d5e65d6aeea3e59c82fda9cd206a7aad.zip | |
locking/rtmutex: replace top-waiter and pi_waiters leftmost caching
... with the generic rbtree flavor instead. No changes
in semantics whatsoever.
Link: http://lkml.kernel.org/r/20170719014603.19029-10-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 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 68b38335d33c..92fb8dd5a9e4 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -812,8 +812,7 @@ struct task_struct { #ifdef CONFIG_RT_MUTEXES /* PI waiters blocked on a rt_mutex held by this task: */ - struct rb_root pi_waiters; - struct rb_node *pi_waiters_leftmost; + struct rb_root_cached pi_waiters; /* Updated under owner's pi_lock and rq lock */ struct task_struct *pi_top_task; /* Deadlock detection and priority inheritance handling: */ |