regmap: Cache async work structures
Rather than allocating and deallocating the structures used to manage async
transfers each time we do one keep the structures around as long as the
regmap is around. This should provide a small performance improvement.
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 57f7778..793ebe2 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -44,7 +44,6 @@
struct regmap_async {
struct list_head list;
- struct work_struct cleanup;
struct regmap *map;
void *work_buf;
};
@@ -67,6 +66,7 @@
spinlock_t async_lock;
wait_queue_head_t async_waitq;
struct list_head async_list;
+ struct list_head async_free;
int async_ret;
#ifdef CONFIG_DEBUG_FS
