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s390/css: start the subchannel evaluation earlier 

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>
This commit is contained in:
Sebastian Ott 2018-06-12 13:56:21 +02:00 committed by Martin Schwidefsky
parent 87dc8a0128
commit 71aa11a40d
1 changed files with 5 additions and 4 deletions
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9
drivers/s390/cio/css.c
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@ -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;
}