From 0709db6072c2e799eba1aa61bd19e0d7f38aa2cd Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sun, 6 May 2007 14:50:45 -0700 Subject: swsusp: use GFP_KERNEL for creating basic data structures Make swsusp call create_basic_memory_bitmaps() before processes are frozen, so that GFP_KERNEL allocations can be made in it. Additionally, ensure that the swsusp's userland interface won't be used while either pm_suspend_disk() or software_resume() is being executed. Signed-off-by: Rafael J. Wysocki Acked-by: Pavel Machek Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/power/user.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'kernel/power/user.c') diff --git a/kernel/power/user.c b/kernel/power/user.c index bd1771f7a64..72dbfd01408 100644 --- a/kernel/power/user.c +++ b/kernel/power/user.c @@ -40,21 +40,21 @@ static struct snapshot_data { char platform_suspend; } snapshot_state; -static atomic_t device_available = ATOMIC_INIT(1); +atomic_t snapshot_device_available = ATOMIC_INIT(1); static int snapshot_open(struct inode *inode, struct file *filp) { struct snapshot_data *data; - if (!atomic_add_unless(&device_available, -1, 0)) + if (!atomic_add_unless(&snapshot_device_available, -1, 0)) return -EBUSY; if ((filp->f_flags & O_ACCMODE) == O_RDWR) { - atomic_inc(&device_available); + atomic_inc(&snapshot_device_available); return -ENOSYS; } if(create_basic_memory_bitmaps()) { - atomic_inc(&device_available); + atomic_inc(&snapshot_device_available); return -ENOMEM; } nonseekable_open(inode, filp); @@ -92,7 +92,7 @@ static int snapshot_release(struct inode *inode, struct file *filp) enable_nonboot_cpus(); mutex_unlock(&pm_mutex); } - atomic_inc(&device_available); + atomic_inc(&snapshot_device_available); return 0; } -- cgit v1.2.3