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PM / Hibernate: Really deprecate deprecated user ioctls

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They were deprecated and removed from exported headers more than 2
years ago. Inform users about their removal in the future now.

(Switch cases needed to be reorderded for an easy fall through.)

And add an entry to feature-removal-schedule.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
This commit is contained in:
Jiri Slaby 2010-01-27 23:47:50 +01:00 committed by Rafael J. Wysocki
parent f8824cee40
commit b694e52ebd
2 changed files with 30 additions and 4 deletions
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11
Documentation/feature-removal-schedule.txt
View File

@ -64,6 +64,17 @@ Who: Robin Getz <rgetz@blackfin.uclinux.org> & Matt Mackall <mpm@selenic.com>
---------------------------
What: Deprecated snapshot ioctls
When: 2.6.36
Why: The ioctls in kernel/power/user.c were marked as deprecated long time
ago. Now they notify users about that so that they need to replace
their userspace. After some more time, remove them completely.
Who: Jiri Slaby <jirislaby@gmail.com>
---------------------------
What: The ieee80211_regdom module parameter
When: March 2010 / desktop catchup

23
kernel/power/user.c
View File

@ -195,6 +195,15 @@ static ssize_t snapshot_write(struct file *filp, const char __user *buf,
return res;
}
static void snapshot_deprecated_ioctl(unsigned int cmd)
{
if (printk_ratelimit())
printk(KERN_NOTICE "%pf: ioctl '%.8x' is deprecated and will "
"be removed soon, update your suspend-to-disk "
"utilities\n",
__builtin_return_address(0), cmd);
}
static long snapshot_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg)
{
@ -246,8 +255,9 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
data->frozen = 0;
break;
case SNAPSHOT_CREATE_IMAGE:
case SNAPSHOT_ATOMIC_SNAPSHOT:
snapshot_deprecated_ioctl(cmd);
case SNAPSHOT_CREATE_IMAGE:
if (data->mode != O_RDONLY || !data->frozen || data->ready) {
error = -EPERM;
break;
@ -275,8 +285,9 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
data->ready = 0;
break;
case SNAPSHOT_PREF_IMAGE_SIZE:
case SNAPSHOT_SET_IMAGE_SIZE:
snapshot_deprecated_ioctl(cmd);
case SNAPSHOT_PREF_IMAGE_SIZE:
image_size = arg;
break;
@ -290,15 +301,17 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
error = put_user(size, (loff_t __user *)arg);
break;
case SNAPSHOT_AVAIL_SWAP_SIZE:
case SNAPSHOT_AVAIL_SWAP:
snapshot_deprecated_ioctl(cmd);
case SNAPSHOT_AVAIL_SWAP_SIZE:
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:
snapshot_deprecated_ioctl(cmd);
case SNAPSHOT_ALLOC_SWAP_PAGE:
if (data->swap < 0 || data->swap >= MAX_SWAPFILES) {
error = -ENODEV;
break;
@ -321,6 +334,7 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
break;
case SNAPSHOT_SET_SWAP_FILE: /* This ioctl is deprecated */
snapshot_deprecated_ioctl(cmd);
if (!swsusp_swap_in_use()) {
/*
* User space encodes device types as two-byte values,
@ -362,6 +376,7 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
break;
case SNAPSHOT_PMOPS: /* This ioctl is deprecated */
snapshot_deprecated_ioctl(cmd);
error = -EINVAL;
switch (arg) {