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| author | Rafael J. Wysocki <rjw@sisk.pl> | 2007-10-26 01:03:33 +0200 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-02-01 18:30:53 -0500 |
| commit | cc5d207c85b9a6fafebe2856ead0a9360978c8cd (patch) | |
| tree | 1a7c45b4ffb44a02a76ccd60ec318c796687d568 /kernel/power/user.c | |
| parent | 96f737490cfc368fdafe49769f52fc8460f9349f (diff) | |
| download | linux-cc5d207c85b9a6fafebe2856ead0a9360978c8cd.tar.bz2 | |
Hibernation: Correct definitions of some ioctls (rev. 2)
Three ioctl numbers belonging to the hibernation userland interface,
SNAPSHOT_ATOMIC_SNAPSHOT, SNAPSHOT_AVAIL_SWAP, SNAPSHOT_GET_SWAP_PAGE,
are defined in a wrong way (eg. not portable). Provide new ioctl numbers for
these ioctls and mark the existing ones as deprecated.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'kernel/power/user.c')
| -rw-r--r-- | kernel/power/user.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/kernel/power/user.c b/kernel/power/user.c index 5e866e078550..b902a7e3bd12 100644 --- a/kernel/power/user.c +++ b/kernel/power/user.c @@ -40,6 +40,16 @@ #define PMOPS_ENTER 2 #define PMOPS_FINISH 3 +/* + * NOTE: The following ioctl definitions are wrong and have been replaced with + * correct ones. They are only preserved here for compatibility with existing + * userland utilities and will be removed in the future. + */ +#define SNAPSHOT_ATOMIC_SNAPSHOT _IOW(SNAPSHOT_IOC_MAGIC, 3, void *) +#define SNAPSHOT_SET_IMAGE_SIZE _IOW(SNAPSHOT_IOC_MAGIC, 6, unsigned long) +#define SNAPSHOT_AVAIL_SWAP _IOR(SNAPSHOT_IOC_MAGIC, 7, void *) +#define SNAPSHOT_GET_SWAP_PAGE _IOR(SNAPSHOT_IOC_MAGIC, 8, void *) + #define SNAPSHOT_MINOR 231 @@ -191,6 +201,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp, data->frozen = 0; break; + case SNAPSHOT_CREATE_IMAGE: case SNAPSHOT_ATOMIC_SNAPSHOT: if (data->mode != O_RDONLY || !data->frozen || data->ready) { error = -EPERM; @@ -198,7 +209,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp, } error = hibernation_snapshot(data->platform_support); if (!error) - error = put_user(in_suspend, (unsigned int __user *)arg); + error = put_user(in_suspend, (int __user *)arg); if (!error) data->ready = 1; break; @@ -219,6 +230,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp, data->ready = 0; break; + case SNAPSHOT_PREF_IMAGE_SIZE: case SNAPSHOT_SET_IMAGE_SIZE: image_size = arg; break; @@ -233,12 +245,14 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp, error = put_user(size, (loff_t __user *)arg); break; + case SNAPSHOT_AVAIL_SWAP_SIZE: case SNAPSHOT_AVAIL_SWAP: size = count_swap_pages(data->swap, 1); size <<= PAGE_SHIFT; error = put_user(size, (loff_t __user *)arg); break; + case SNAPSHOT_ALLOC_SWAP_PAGE: case SNAPSHOT_GET_SWAP_PAGE: if (data->swap < 0 || data->swap >= MAX_SWAPFILES) { error = -ENODEV; @@ -247,7 +261,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp, offset = alloc_swapdev_block(data->swap); if (offset) { offset <<= PAGE_SHIFT; - error = put_user(offset, (sector_t __user *)arg); + error = put_user(offset, (loff_t __user *)arg); } else { error = -ENOSPC; } |