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authorMatt Fleming <matt@codeblueprint.co.uk>2016-09-21 14:38:10 +0100
committerIngo Molnar <mingo@kernel.org>2017-01-14 11:29:30 +0100
commitd8ac897137a230ec351269f6378017f2decca512 (patch)
treecf834668852a2bac57b1862767f0a1a32cc41246 /kernel/sched/rt.c
parentc8d7dabf8f91fadd265e6eb87afb201d14ea299b (diff)
sched/core: Add wrappers for lockdep_(un)pin_lock()
In preparation for adding diagnostic checks to catch missing calls to update_rq_clock(), provide wrappers for (re)pinning and unpinning rq->lock. Because the pending diagnostic checks allow state to be maintained in rq_flags across pin contexts, swap the 'struct pin_cookie' arguments for 'struct rq_flags *'. Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Byungchul Park <byungchul.park@lge.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jan Kara <jack@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Luca Abeni <luca.abeni@unitn.it> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Mike Galbraith <efault@gmx.de> Cc: Mike Galbraith <umgwanakikbuti@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Petr Mladek <pmladek@suse.com> Cc: Rik van Riel <riel@redhat.com> Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Wanpeng Li <wanpeng.li@hotmail.com> Cc: Yuyang Du <yuyang.du@intel.com> Link: http://lkml.kernel.org/r/20160921133813.31976-5-matt@codeblueprint.co.uk Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched/rt.c')
-rw-r--r--kernel/sched/rt.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 2516b8df6dbb..88254be118b0 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -1523,7 +1523,7 @@ static struct task_struct *_pick_next_task_rt(struct rq *rq)
}
static struct task_struct *
-pick_next_task_rt(struct rq *rq, struct task_struct *prev, struct pin_cookie cookie)
+pick_next_task_rt(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
{
struct task_struct *p;
struct rt_rq *rt_rq = &rq->rt;
@@ -1535,9 +1535,9 @@ pick_next_task_rt(struct rq *rq, struct task_struct *prev, struct pin_cookie coo
* disabled avoiding further scheduler activity on it and we're
* being very careful to re-start the picking loop.
*/
- lockdep_unpin_lock(&rq->lock, cookie);
+ rq_unpin_lock(rq, rf);
pull_rt_task(rq);
- lockdep_repin_lock(&rq->lock, cookie);
+ rq_repin_lock(rq, rf);
/*
* pull_rt_task() can drop (and re-acquire) rq->lock; this
* means a dl or stop task can slip in, in which case we need