blob: 74708fcaf82fe900c3a77689ccad11c91b48b173 [file] [log] [blame]
Matthew Wilcox3e082a92006-09-28 15:19:20 -06001/*
2 * scsi_wait_scan.c
3 *
4 * Copyright (C) 2006 James Bottomley <James.Bottomley@SteelEye.com>
5 *
6 * This is a simple module to wait until all the async scans are
7 * complete. The idea is to use it in initrd/initramfs scripts. You
8 * modprobe it after all the modprobes of the root SCSI drivers and it
9 * will wait until they have all finished scanning their busses before
10 * allowing the boot to proceed
11 */
12
13#include <linux/module.h>
Arjan van de Vend4d52912009-04-21 13:32:54 -070014#include <linux/device.h>
Rafael J. Wysockic7510852009-04-12 20:06:56 +020015#include <scsi/scsi_scan.h>
Matthew Wilcox3e082a92006-09-28 15:19:20 -060016
17static int __init wait_scan_init(void)
18{
Arjan van de Vend4d52912009-04-21 13:32:54 -070019 /*
20 * First we need to wait for device probing to finish;
21 * the drivers we just loaded might just still be probing
22 * and might not yet have reached the scsi async scanning
23 */
24 wait_for_device_probe();
25 /*
26 * and then we wait for the actual asynchronous scsi scan
27 * to finish.
28 */
Matthew Wilcox3e082a92006-09-28 15:19:20 -060029 scsi_complete_async_scans();
30 return 0;
31}
32
33static void __exit wait_scan_exit(void)
34{
35}
36
37MODULE_DESCRIPTION("SCSI wait for scans");
38MODULE_AUTHOR("James Bottomley");
39MODULE_LICENSE("GPL");
40
41late_initcall(wait_scan_init);
42module_exit(wait_scan_exit);