[tip:sched/urgent] sched: Replace rq->bkl_count with rq->rq_sched_info.bkl_count

tip-bot for Yong Zhang
2011-01-18T19:06:21Z

Commit-ID: fce2097983d914ea8c2338efc6f6e9bb737f6ae4
Gitweb: http://git.kernel.org/tip/fce2097983d914ea8c2338efc6f6e9bb737f6ae4
Author: Yong Zhang <yong.zhang0@gmail.com>
AuthorDate: Fri, 14 Jan 2011 15:57:39 +0800
Committer: Ingo Molnar <mingo@elte.hu>
CommitDate: Tue, 18 Jan 2011 15:09:43 +0100

sched: Replace rq->bkl_count with rq->rq_sched_info.bkl_count

Now rq->rq_sched_info.bkl_count is not used for rq, scroll
rq->bkl_count into it. Thus we can save some space for rq.

Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1294991859-13246-1-git-send-email-yong.zhang0@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
kernel/sched.c | 5 +----
kernel/sched_debug.c | 4 +++-
2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/kernel/sched.c b/kernel/sched.c
index 6cbff6b..0a169a8 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -553,9 +553,6 @@ struct rq {
/* try_to_wake_up() stats */
unsigned int ttwu_count;
unsigned int ttwu_local;
-
- /* BKL stats */
- unsigned int bkl_count;
#endif
};

@@ -3887,7 +3884,7 @@ static inline void schedule_debug(struct task_struct *prev)
schedstat_inc(this_rq(), sched_count);
#ifdef CONFIG_SCHEDSTATS
if (unlikely(prev->lock_depth >= 0)) {
- schedstat_inc(this_rq(), bkl_count);
+ schedstat_inc(this_rq(), rq_sched_info.bkl_count);
schedstat_inc(prev, sched_info.bkl_count);
}
#endif
diff --git a/kernel/sched_debug.c b/kernel/sched_debug.c
index e4d3725..eb6cb8e 100644
--- a/kernel/sched_debug.c
+++ b/kernel/sched_debug.c
@@ -296,9 +296,11 @@ static void print_cpu(struct seq_file *m, int cpu)
P(ttwu_count);
P(ttwu_local);

- P(bkl_count);
+ SEQ_printf(m, " .%-30s: %d\n", "bkl_count",
+ rq->rq_sched_info.bkl_count);

#undef P
+#undef P64
#endif
spin_lock_irqsave(&sched_debug_lock, flags);
print_cfs_stats(m, cpu);