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Subject[patch 5/9] compat_ioctl: move BLKPG handling to block/compat_ioctl.c
BLKPG is common to all block devices, so it should be handled
by common code.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Index: linux-2.6/block/compat_ioctl.c
===================================================================
--- linux-2.6.orig/block/compat_ioctl.c
+++ linux-2.6/block/compat_ioctl.c
@@ -92,6 +92,35 @@ static int compat_hdio_ioctl(struct inod
return error;
}

+struct compat_blkpg_ioctl_arg {
+ compat_int_t op;
+ compat_int_t flags;
+ compat_int_t datalen;
+ compat_caddr_t data;
+};
+
+static int compat_blkpg_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, struct compat_blkpg_ioctl_arg __user *ua32)
+{
+ struct blkpg_ioctl_arg __user *a = compat_alloc_user_space(sizeof(*a));
+ compat_caddr_t udata;
+ compat_int_t n;
+ int err;
+
+ err = get_user(n, &ua32->op);
+ err |= put_user(n, &a->op);
+ err |= get_user(n, &ua32->flags);
+ err |= put_user(n, &a->flags);
+ err |= get_user(n, &ua32->datalen);
+ err |= put_user(n, &a->datalen);
+ err |= get_user(udata, &ua32->data);
+ err |= put_user(compat_ptr(udata), &a->data);
+ if (err)
+ return err;
+
+ return blkdev_ioctl(inode, file, cmd, (unsigned long)a);
+}
+
#define BLKBSZGET_32 _IOR(0x12, 112, int)
#define BLKBSZSET_32 _IOW(0x12, 113, int)
#define BLKGETSIZE64_32 _IOR(0x12, 114, int)
@@ -350,6 +379,8 @@ long compat_blkdev_ioctl(struct file *fi
case BLKBSZSET_32:
return blkdev_ioctl(inode, file, BLKBSZSET,
(unsigned long)compat_ptr(arg));
+ case BLKPG:
+ return compat_blkpg_ioctl(inode, file, cmd, compat_ptr(arg));
}

lock_kernel();
Index: linux-2.6/fs/compat_ioctl.c
===================================================================
--- linux-2.6.orig/fs/compat_ioctl.c
+++ linux-2.6/fs/compat_ioctl.c
@@ -47,7 +47,6 @@
#include <linux/netdevice.h>
#include <linux/raw.h>
#include <linux/smb_fs.h>
-#include <linux/blkpg.h>
#include <linux/blkdev.h>
#include <linux/elevator.h>
#include <linux/rtc.h>
@@ -1487,37 +1486,6 @@ ret_einval(unsigned int fd, unsigned int
return -EINVAL;
}

-#ifdef CONFIG_BLOCK
-struct blkpg_ioctl_arg32 {
- compat_int_t op;
- compat_int_t flags;
- compat_int_t datalen;
- compat_caddr_t data;
-};
-
-static int blkpg_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg)
-{
- struct blkpg_ioctl_arg32 __user *ua32 = compat_ptr(arg);
- struct blkpg_ioctl_arg __user *a = compat_alloc_user_space(sizeof(*a));
- compat_caddr_t udata;
- compat_int_t n;
- int err;
-
- err = get_user(n, &ua32->op);
- err |= put_user(n, &a->op);
- err |= get_user(n, &ua32->flags);
- err |= put_user(n, &a->flags);
- err |= get_user(n, &ua32->datalen);
- err |= put_user(n, &a->datalen);
- err |= get_user(udata, &ua32->data);
- err |= put_user(compat_ptr(udata), &a->data);
- if (err)
- return err;
-
- return sys_ioctl(fd, cmd, (unsigned long)a);
-}
-#endif
-
static int ioc_settimeout(unsigned int fd, unsigned int cmd, unsigned long arg)
{
return rw_long(fd, AUTOFS_IOC_SETTIMEOUT, arg);
@@ -3160,7 +3128,6 @@ HANDLE_IOCTL(SIOCGSTAMP, do_siocgstamp)
HANDLE_IOCTL(SIOCGSTAMPNS, do_siocgstampns)
#endif
#ifdef CONFIG_BLOCK
-HANDLE_IOCTL(BLKPG, blkpg_ioctl_trans)
HANDLE_IOCTL(FDSETPRM32, fd_ioctl_trans)
HANDLE_IOCTL(FDDEFPRM32, fd_ioctl_trans)
HANDLE_IOCTL(FDGETPRM32, fd_ioctl_trans)
--

-
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