md: move code in to submit_flushes.

submit_flushes is called from exactly one place.
Move the code that is before and after that call into
submit_flushes.

This has not functional change, but will make the next patch
smaller and easier to follow.

Signed-off-by: NeilBrown <neilb@suse.de>

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 83b6cb3..31f8e15 100644 (file)
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -371,10 +371,14 @@ static void md_end_flush(struct bio *bio, int err)
        bio_put(bio);
 }
 
+static void md_submit_flush_data(struct work_struct *ws);
+
 static void submit_flushes(mddev_t *mddev)
 {
        mdk_rdev_t *rdev;
 
+       INIT_WORK(&mddev->flush_work, md_submit_flush_data);
+       atomic_set(&mddev->flush_pending, 1);
        rcu_read_lock();
        list_for_each_entry_rcu(rdev, &mddev->disks, same_set)
                if (rdev->raid_disk >= 0 &&
@@ -397,6 +401,8 @@ static void submit_flushes(mddev_t *mddev)
                        rdev_dec_pending(rdev, mddev);
                }
        rcu_read_unlock();
+       if (atomic_dec_and_test(&mddev->flush_pending))
+               queue_work(md_wq, &mddev->flush_work);
 }
 
 static void md_submit_flush_data(struct work_struct *ws)
@@ -426,13 +432,7 @@ void md_flush_request(mddev_t *mddev, struct bio *bio)
        mddev->flush_bio = bio;
        spin_unlock_irq(&mddev->write_lock);
 
-       atomic_set(&mddev->flush_pending, 1);
-       INIT_WORK(&mddev->flush_work, md_submit_flush_data);
-
        submit_flushes(mddev);
-
-       if (atomic_dec_and_test(&mddev->flush_pending))
-               queue_work(md_wq, &mddev->flush_work);
 }
 EXPORT_SYMBOL(md_flush_request);