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| author | Thomas Gleixner <tglx@linutronix.de> | 2010-06-16 16:58:34 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-06-16 19:55:36 +0200 |
| commit | faf35813f204901f85dd0c6b3c5092e0064c6c2f (patch) | |
| tree | c314b00a687c486bb4971ceb81f4b84618acb6be /kernel | |
| parent | 654e404e55d3b4eee35b7def0193e5510904528f (diff) | |
| download | lwn-faf35813f204901f85dd0c6b3c5092e0064c6c2f.tar.gz lwn-faf35813f204901f85dd0c6b3c5092e0064c6c2f.zip | |
timer_stats: Convert table_lock to raw_spin_lock
table_lock is taken in atomic contexts and therefor cannot be
converted to a sleeping spinlock on rt. Make it raw.
Reported-by: Andreas Sundebo <kernel@sundebo.dk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Andreas Sundebo <kernel@sundebo.dk>
Diffstat (limited to 'kernel')
| -rw-r--r-- | 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 2f3b585b8d7d..30cb955e6c02 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; } |