dm crypt: Make use of the helper macro kthread_run()

Replace kthread_create/wake_up_process() with kthread_run()
to simplify the code.

Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 5c56d2b..39946eb 100644 (file)
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -3362,14 +3362,13 @@ static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
        spin_lock_init(&cc->write_thread_lock);
        cc->write_tree = RB_ROOT;
 
-       cc->write_thread = kthread_create(dmcrypt_write, cc, "dmcrypt_write/%s", devname);
+       cc->write_thread = kthread_run(dmcrypt_write, cc, "dmcrypt_write/%s", devname);
        if (IS_ERR(cc->write_thread)) {
                ret = PTR_ERR(cc->write_thread);
                cc->write_thread = NULL;
                ti->error = "Couldn't spawn write thread";
                goto bad;
        }
-       wake_up_process(cc->write_thread);
 
        ti->num_flush_bios = 1;
        ti->limit_swap_bios = true;