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Subject[PATCH] swsusp: Fix SNAPSHOT_S2RAM ioctl
Date
From: Rafael J. Wysocki <rjw@sisk.pl>

The SNAPSHOT_S2RAM ioctl does not disable the nonboot CPUs before entering
the suspend, although it should do this.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---
kernel/power/user.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)

Index: linux-2.6.21-rc4/kernel/power/user.c
===================================================================
--- linux-2.6.21-rc4.orig/kernel/power/user.c
+++ linux-2.6.21-rc4/kernel/power/user.c
@@ -374,9 +374,12 @@ static int snapshot_ioctl(struct inode *
if (error) {
printk(KERN_ERR "Failed to suspend some devices.\n");
} else {
- /* Enter S3, system is already frozen */
- suspend_enter(PM_SUSPEND_MEM);
-
+ error = disable_nonboot_cpus();
+ if (!error) {
+ /* Enter S3, system is already frozen */
+ suspend_enter(PM_SUSPEND_MEM);
+ enable_nonboot_cpus();
+ }
/* Wake up devices */
device_resume();
}
-
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