The current version of "percpu_counter: make APIs irq safe" in the blk-mq
tree doesn't properly restore irqs, thus causing the boot of the blk-multique
tree to fail with various irqs_disabled() BUGs and related issues.
Signed-off-by: Christoph Hellwig <h...@lst.de>
---
lib/percpu_counter.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c
index 1ae43a7..7473ee3 100644
--- a/lib/percpu_counter.c
+++ b/lib/percpu_counter.c
@@ -82,7 +82,7 @@ void __percpu_counter_add(struct percpu_counter *fbc, s64
amount, s32 batch)
unsigned long flags;
raw_spin_lock_irqsave(&fbc->lock, flags);
fbc->count += count;
- raw_spin_unlock(&fbc->lock);
+ raw_spin_unlock_irqrestore(&fbc->lock, flags);
__this_cpu_write(*fbc->counters, 0);
} else {
__this_cpu_write(*fbc->counters, count);
--
1.7.10.4
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
