PM / Hibernate: Really deprecate deprecated user ioctls
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>
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 0a46833..b9eba90 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -64,6 +64,17 @@
---------------------------
+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
diff --git a/kernel/power/user.c b/kernel/power/user.c
index bf0014d..4d22896 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -195,6 +195,15 @@
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 @@
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 @@
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 @@
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 @@
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 @@
break;
case SNAPSHOT_PMOPS: /* This ioctl is deprecated */
+ snapshot_deprecated_ioctl(cmd);
error = -EINVAL;
switch (arg) {
