Commit f635237a authored by Cai Huoqing's avatar Cai Huoqing Committed by Mike Snitzer
Browse files

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



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

Signed-off-by: default avatarCai Huoqing <caihuoqing@baidu.com>
Signed-off-by: default avatarMike Snitzer <snitzer@redhat.com>
parent a5217c11

drivers/md/dm-writecache.c

+2 −4
Original line number Diff line number Diff line
@@ -2264,14 +2264,13 @@ static int writecache_ctr(struct dm_target *ti, unsigned argc, char **argv) 


	raw_spin_lock_init(&wc->endio_list_lock);

	INIT_LIST_HEAD(&wc->endio_list);

	wc->endio_thread = kthread_create(writecache_endio_thread, wc, "writecache_endio");

	wc->endio_thread = kthread_run(writecache_endio_thread, wc, "writecache_endio");

	if (IS_ERR(wc->endio_thread)) {

		r = PTR_ERR(wc->endio_thread);

		wc->endio_thread = NULL;

		ti->error = "Couldn't spawn endio thread";

		goto bad;

	}

	wake_up_process(wc->endio_thread);



	/*

	 * Parse the mode (pmem or ssd)
@@ -2493,14 +2492,13 @@ static int writecache_ctr(struct dm_target *ti, unsigned argc, char **argv) 
		wc->memory_map_size -= (uint64_t)wc->start_sector << SECTOR_SHIFT;



		bio_list_init(&wc->flush_list);

		wc->flush_thread = kthread_create(writecache_flush_thread, wc, "dm_writecache_flush");

		wc->flush_thread = kthread_run(writecache_flush_thread, wc, "dm_writecache_flush");

		if (IS_ERR(wc->flush_thread)) {

			r = PTR_ERR(wc->flush_thread);

			wc->flush_thread = NULL;

			ti->error = "Couldn't spawn flush thread";

			goto bad;

		}

		wake_up_process(wc->flush_thread);



		r = calculate_memory_size(wc->memory_map_size, wc->block_size,

					  &n_blocks, &n_metadata_blocks);