This is a note to let you know that I've just added the patch titled
PM / Hibernate: Make snapshot_release() restore GFP mask
to the 2.6.38-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pm-hibernate-make-snapshot_release-restore-gfp-mask.patch
and it can be found in the queue-2.6.38 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 9744997a8a2280e67984d4bffd87221d24f3b6b1 Mon Sep 17 00:00:00 2001
From: Rafael J. Wysocki <[email protected]>
Date: Tue, 10 May 2011 21:10:01 +0200
Subject: PM / Hibernate: Make snapshot_release() restore GFP mask
From: Rafael J. Wysocki <[email protected]>
commit 9744997a8a2280e67984d4bffd87221d24f3b6b1 upstream.
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 <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
kernel/power/user.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -135,8 +135,10 @@ static int snapshot_release(struct inode
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);
Patches currently in stable-queue which might be from [email protected] are
queue-2.6.38/pm-fix-warning-in-pm_restrict_gfp_mask-during-snapshot_s2ram-ioctl.patch
queue-2.6.38/pm-hibernate-make-snapshot_release-restore-gfp-mask.patch
queue-2.6.38/pm-hibernate-fix-ioctl-snapshot_s2ram.patch
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