mirror of
https://github.com/torvalds/linux.git
synced 2024-09-24 08:53:09 +00:00
c751085943
There is a race between resume from hibernation and the asynchronous scanning of SCSI devices and to prevent it from happening we need to call scsi_complete_async_scans() during resume from hibernation. In addition, if the resume from hibernation is userland-driven, it's better to wait for all device probes in the kernel to complete before attempting to open the resume device. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
32 lines
758 B
C
32 lines
758 B
C
/*
|
|
* scsi_wait_scan.c
|
|
*
|
|
* Copyright (C) 2006 James Bottomley <James.Bottomley@SteelEye.com>
|
|
*
|
|
* This is a simple module to wait until all the async scans are
|
|
* complete. The idea is to use it in initrd/initramfs scripts. You
|
|
* modprobe it after all the modprobes of the root SCSI drivers and it
|
|
* will wait until they have all finished scanning their busses before
|
|
* allowing the boot to proceed
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <scsi/scsi_scan.h>
|
|
|
|
static int __init wait_scan_init(void)
|
|
{
|
|
scsi_complete_async_scans();
|
|
return 0;
|
|
}
|
|
|
|
static void __exit wait_scan_exit(void)
|
|
{
|
|
}
|
|
|
|
MODULE_DESCRIPTION("SCSI wait for scans");
|
|
MODULE_AUTHOR("James Bottomley");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
late_initcall(wait_scan_init);
|
|
module_exit(wait_scan_exit);
|