s390/css: start the subchannel evaluation earlier (71aa11a4) · Commits · 戴 / test

The css bus code uses 2 initcalls: channel_subsystem_init to initialize internal data and channel_subsystem_init_sync to start scanning for devices and wait for it to finish. The start scanning for devices part is moved to the first initcall such that more work happens in parallel. Signed-off-by:

Sebastian Ott <sebott@linux.ibm.com> Signed-off-by:

Martin Schwidefsky <schwidefsky@de.ibm.com>

drivers/s390/cio/css.c

+5 −4

Original line number	Diff line number	Diff line
		@@ -1080,6 +1080,11 @@ static int __init channel_subsystem_init(void)
		if (ret)
		goto out_wq;

		/* Register subchannels which are already in use. */
		cio_register_early_subchannels();
		/* Start initial subchannel evaluation. */
		css_schedule_eval_all();

		return ret;
		out_wq:
		destroy_workqueue(cio_work_q);
		@@ -1119,10 +1124,6 @@ int css_complete_work(void)
		*/
		static int __init channel_subsystem_init_sync(void)
		{
		/* Register subchannels which are already in use. */
		cio_register_early_subchannels();
		/* Start initial subchannel evaluation. */
		css_schedule_eval_all();
		css_complete_work();
		return 0;
		}

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