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authorRafael J. Wysocki <rjw@sisk.pl>2011-05-10 21:10:01 +0200
committerRafael J. Wysocki <rjw@sisk.pl>2011-05-11 21:10:43 +0200
commit9744997a8a2280e67984d4bffd87221d24f3b6b1 (patch)
treefde6744d42fcd742fb1cd1532609a1f13a1cc42d /kernel/power/user.c
parent87186475a402391a1ca7d42a675c9b35a18dc348 (diff)
downloadlinux-9744997a8a2280e67984d4bffd87221d24f3b6b1.tar.gz
PM / Hibernate: Make snapshot_release() restore GFP mask
If the process using the hibernate user space interface closes
/dev/snapshot after creating a hibernation image without thawing
tasks, snapshot_release() should call pm_restore_gfp_mask() to
restore the GFP mask used before the creation of the image.  Make
that happen.

Tested-by: Alexandre Felipe Muller de Souza <alexandrefm@mandriva.com.br>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Cc: stable@kernel.org
Diffstat (limited to 'kernel/power/user.c')
-rw-r--r--kernel/power/user.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/power/user.c b/kernel/power/user.c
index c36c3b9e8a84..6522be913ac1 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -135,8 +135,10 @@ static int snapshot_release(struct inode *inode, struct file *filp)
 	free_basic_memory_bitmaps();
 	data = filp->private_data;
 	free_all_swap_pages(data->swap);
-	if (data->frozen)
+	if (data->frozen) {
+		pm_restore_gfp_mask();
 		thaw_processes();
+	}
 	pm_notifier_call_chain(data->mode == O_RDONLY ?
 			PM_POST_HIBERNATION : PM_POST_RESTORE);
 	atomic_inc(&snapshot_device_available);