[PATCH 16/26] timer_stats: Convert to raw_spinlocks

John Kacur
2010-01-11T21:30:05Z

Convert locks which cannot sleep in preempt-rt to raw_spinlocks.

See also 54852508231ef28058a88480b2f9ab9b859b0e38
Completes the conversion started in ecb49d1a639acbacfc3771cae5ec07bed5df3847

Signed-off-by: John Kacur <jkacur@redhat.com>
---
kernel/time/timer_stats.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c
index 2f3b585..30cb955 100644
--- a/kernel/time/timer_stats.c
+++ b/kernel/time/timer_stats.c
@@ -81,7 +81,7 @@ struct entry {
/*
* Spinlock protecting the tables - not taken during lookup:
*/
-static DEFINE_SPINLOCK(table_lock);
+static DEFINE_RAW_SPINLOCK(table_lock);

/*
* Per-CPU lookup locks for fast hash lookup:
@@ -188,7 +188,7 @@ static struct entry *tstat_lookup(struct entry *entry, char *comm)
prev = NULL;
curr = *head;

- spin_lock(&table_lock);
+ raw_spin_lock(&table_lock);
/*
* Make sure we have not raced with another CPU:
*/
@@ -215,7 +215,7 @@ static struct entry *tstat_lookup(struct entry *entry, char *comm)
*head = curr;
}
out_unlock:
- spin_unlock(&table_lock);
+ raw_spin_unlock(&table_lock);

return curr;
}
--
1.6.5.2