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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2011-05-10 21:10:01 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rjw@sisk.pl> | 2011-05-11 21:10:43 +0200 |
| commit | 9744997a8a2280e67984d4bffd87221d24f3b6b1 (patch) | |
| tree | fde6744d42fcd742fb1cd1532609a1f13a1cc42d /kernel/power/user.c | |
| parent | 87186475a402391a1ca7d42a675c9b35a18dc348 (diff) | |
| download | lwn-9744997a8a2280e67984d4bffd87221d24f3b6b1.tar.gz lwn-9744997a8a2280e67984d4bffd87221d24f3b6b1.zip | |
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.c | 4 |
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); |