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Subject[PATCH] PM / Hibernate: Remove deprecated hibernation snapshot ioctls
Date
Several snapshot ioctls were marked for removal quite some time ago,
since they were deprecated. Remove them.

Suggested-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
---
Documentation/feature-removal-schedule.txt | 11 ----
kernel/power/user.c | 87 ----------------------------
2 files changed, 0 insertions(+), 98 deletions(-)
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 3d84912..9f51fc4 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -85,17 +85,6 @@ 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

diff --git a/kernel/power/user.c b/kernel/power/user.c
index 98ade21..78bdb44 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -30,28 +30,6 @@

#include "power.h"

-/*
- * NOTE: The SNAPSHOT_SET_SWAP_FILE and SNAPSHOT_PMOPS ioctls are obsolete and
- * will be removed in the future. They are only preserved here for
- * compatibility with existing userland utilities.
- */
-#define SNAPSHOT_SET_SWAP_FILE _IOW(SNAPSHOT_IOC_MAGIC, 10, unsigned int)
-#define SNAPSHOT_PMOPS _IOW(SNAPSHOT_IOC_MAGIC, 12, unsigned int)
-
-#define PMOPS_PREPARE 1
-#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

@@ -213,15 +191,6 @@ unlock:
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)
{
@@ -272,8 +241,6 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
data->frozen = 0;
break;

- case SNAPSHOT_ATOMIC_SNAPSHOT:
- snapshot_deprecated_ioctl(cmd);
case SNAPSHOT_CREATE_IMAGE:
if (data->mode != O_RDONLY || !data->frozen || data->ready) {
error = -EPERM;
@@ -308,8 +275,6 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
data->ready = 0;
break;

- case SNAPSHOT_SET_IMAGE_SIZE:
- snapshot_deprecated_ioctl(cmd);
case SNAPSHOT_PREF_IMAGE_SIZE:
image_size = arg;
break;
@@ -324,16 +289,12 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
error = put_user(size, (loff_t __user *)arg);
break;

- 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_GET_SWAP_PAGE:
- snapshot_deprecated_ioctl(cmd);
case SNAPSHOT_ALLOC_SWAP_PAGE:
if (data->swap < 0 || data->swap >= MAX_SWAPFILES) {
error = -ENODEV;
@@ -356,27 +317,6 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
free_all_swap_pages(data->swap);
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,
- * so we need to recode them
- */
- if (old_decode_dev(arg)) {
- data->swap = swap_type_of(old_decode_dev(arg),
- 0, NULL);
- if (data->swap < 0)
- error = -ENODEV;
- } else {
- data->swap = -1;
- error = -EINVAL;
- }
- } else {
- error = -EPERM;
- }
- break;
-
case SNAPSHOT_S2RAM:
if (!data->frozen) {
error = -EPERM;
@@ -399,33 +339,6 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
error = hibernation_platform_enter();
break;

- case SNAPSHOT_PMOPS: /* This ioctl is deprecated */
- snapshot_deprecated_ioctl(cmd);
- error = -EINVAL;
-
- switch (arg) {
-
- case PMOPS_PREPARE:
- data->platform_support = 1;
- error = 0;
- break;
-
- case PMOPS_ENTER:
- if (data->platform_support)
- error = hibernation_platform_enter();
- break;
-
- case PMOPS_FINISH:
- if (data->platform_support)
- error = 0;
- break;
-
- default:
- printk(KERN_ERR "SNAPSHOT_PMOPS: invalid argument %ld\n", arg);
-
- }
- break;
-
case SNAPSHOT_SET_SWAP_AREA:
if (swsusp_swap_in_use()) {
error = -EPERM;


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