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PM / Hibernate: Add resumedelay kernel param in addition to resumewait

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Patch "PM / Hibernate: Add resumewait param to support MMC-like
devices as resume file" added the resumewait kernel command line
option.  The present patch adds resumedelay so that
resumewait/delay were analogous to rootwait/delay.

[rjw: Modified the subject and changelog slightly.]

Signed-off-by: Barry Song <baohua.song@csr.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
This commit is contained in:
Barry Song 2011-10-10 23:38:41 +02:00 • committed by Rafael J. Wysocki
parent bf1c138e35
commit f126f7334f
2 changed files with 17 additions and 0 deletions
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14
kernel/power/hibernate.c
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@ -33,6 +33,7 @@
static int nocompress = 0;
static int noresume = 0;
static int resume_wait = 0;
static int resume_delay = 0;
static char resume_file[256] = CONFIG_PM_STD_PARTITION;
dev_t swsusp_resume_device;
sector_t swsusp_resume_block;
@ -730,6 +731,12 @@ static int software_resume(void)
pr_debug("PM: Checking hibernation image partition %s\n", resume_file);
if (resume_delay) {
printk(KERN_INFO "Waiting %dsec before reading resume device...\n",
resume_delay);
ssleep(resume_delay);
}
/* Check if the device is there */
swsusp_resume_device = name_to_dev_t(resume_file);
if (!swsusp_resume_device) {
@ -1079,8 +1086,15 @@ static int __init resumewait_setup(char *str)
return 1;
}
static int __init resumedelay_setup(char *str)
{
resume_delay = simple_strtoul(str, NULL, 0);
return 1;
}
__setup("noresume", noresume_setup);
__setup("resume_offset=", resume_offset_setup);
__setup("resume=", resume_setup);
__setup("hibernate=", hibernate_setup);
__setup("resumewait", resumewait_setup);
__setup("resumedelay=", resumedelay_setup);