drivers/scsi/scsi_wait_scan.c

   1 /*
   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>
  14 #include <linux/device.h>
  15 #include "scsi_priv.h"
  16
  17 static int __init wait_scan_init(void)
  18 {
  19         /*
  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         return 0;
  26 }
  27
  28 static void __exit wait_scan_exit(void)
  29 {
  30 }
  31
  32 MODULE_DESCRIPTION("SCSI wait for scans");
  33 MODULE_AUTHOR("James Bottomley");
  34 MODULE_LICENSE("GPL");
  35
  36 late_initcall(wait_scan_init);
  37 module_exit(wait_scan_exit);