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authorPavel Machek <pavel@ucw.cz>2005-06-25 14:55:11 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-25 16:24:33 -0700
commit620b03276488c3cf103caf1e326bd21f00d3df84 (patch)
treee2de713c76ddb42b091305b88aa7ca4938081789 /kernel/sys.c
parent5ce47e59c9688d8480ae41100117d8188c191401 (diff)
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[PATCH] properly stop devices before poweroff
Without this patch, Linux provokes emergency disk shutdowns and similar nastiness. It was in SuSE kernels for some time, IIRC. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/sys.c')
-rw-r--r--kernel/sys.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/sys.c b/kernel/sys.c
index da24bc1292db..dac10161ca23 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -405,6 +405,7 @@ asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, void __user
case LINUX_REBOOT_CMD_HALT:
notifier_call_chain(&reboot_notifier_list, SYS_HALT, NULL);
system_state = SYSTEM_HALT;
+ device_suspend(PMSG_SUSPEND);
device_shutdown();
printk(KERN_EMERG "System halted.\n");
machine_halt();
@@ -415,6 +416,7 @@ asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, void __user
case LINUX_REBOOT_CMD_POWER_OFF:
notifier_call_chain(&reboot_notifier_list, SYS_POWER_OFF, NULL);
system_state = SYSTEM_POWER_OFF;
+ device_suspend(PMSG_SUSPEND);
device_shutdown();
printk(KERN_EMERG "Power down.\n");
machine_power_off();
@@ -431,6 +433,7 @@ asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, void __user
notifier_call_chain(&reboot_notifier_list, SYS_RESTART, buffer);
system_state = SYSTEM_RESTART;
+ device_suspend(PMSG_FREEZE);
device_shutdown();
printk(KERN_EMERG "Restarting system with command '%s'.\n", buffer);
machine_restart(buffer);