Add code comments to explain which call back function might be called
for the closure_queue(). This is an effort to make code to be more
understandable for readers.
Signed-off-by: Coly Li <colyli@xxxxxxx>
---
drivers/md/bcache/super.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 83a7cb0e0e45..9b41e0b62cc0 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -662,6 +662,11 @@ static const struct block_device_operations bcache_ops = {
void bcache_device_stop(struct bcache_device *d)
{
if (!test_and_set_bit(BCACHE_DEV_CLOSING, &d->flags))
+ /*
+ * closure_fn set to
+ * - cached device: cached_dev_flush()
+ * - flash dev: flash_dev_flush()
+ */
closure_queue(&d->cl);
}
@@ -1677,6 +1682,7 @@ static void __cache_set_unregister(struct closure *cl)
void bch_cache_set_stop(struct cache_set *c)
{
if (!test_and_set_bit(CACHE_SET_STOPPING, &c->flags))
+ /* closure_fn set to __cache_set_unregister() */
closure_queue(&c->caching);
}
--
2.16.4
