Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs compat_ioctl fixes from Al Viro:
 "This is basically Jann's patches from last week.  I have _not_
  included the stuff like switching i2c to ->compat_ioctl() into this
  one - those need more testing.

  Ideally I would like fs/compat_ioctl.c shrunk a lot, but that's a
  separate story"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  compat_ioctl: don't call do_ioctl under set_fs(KERNEL_DS)
  compat_ioctl: don't pass fd around when not needed
  compat_ioctl: don't look up the fd twice

fs/internal.h

@@ -151,3 +151,10 @@ extern void mnt_pin_kill(struct mount *m);
  * fs/nsfs.c
  */
 extern struct dentry_operations ns_dentry_operations;
+
+/*
+ * fs/ioctl.c
+ */
+extern int do_vfs_ioctl(struct file *file, unsigned int fd, unsigned int cmd,
+		    unsigned long arg);
+extern long vfs_ioctl(struct file *file, unsigned int cmd, unsigned long arg);

fs/ioctl.c

@@ -15,6 +15,7 @@
 #include <linux/writeback.h>
 #include <linux/buffer_head.h>
 #include <linux/falloc.h>
+#include "internal.h"
 
 #include <asm/ioctls.h>
 
@@ -32,8 +33,7 @@
  *
  * Returns 0 on success, -errno on error.
  */
-static long vfs_ioctl(struct file *filp, unsigned int cmd,
-		      unsigned long arg)
+long vfs_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	int error = -ENOTTY;
 

include/linux/fs.h

@@ -2764,8 +2764,6 @@ extern int vfs_lstat(const char __user *, struct kstat *);
 extern int vfs_fstat(unsigned int, struct kstat *);
 extern int vfs_fstatat(int , const char __user *, struct kstat *, int);
 
-extern int do_vfs_ioctl(struct file *filp, unsigned int fd, unsigned int cmd,
-		    unsigned long arg);
 extern int __generic_block_fiemap(struct inode *inode,
 				  struct fiemap_extent_info *fieinfo,
 				  loff_t start, loff_t len,