Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

--

[mandatory]

	d_alloc_root() is gone, along with a lot of bugs caused by code

misusing it.  Replacement: d_make_root(inode).  The difference is,

d_make_root() drops the reference to inode if dentry allocation fails.  

misusing it.  Replacement: d_make_root(inode).  On success d_make_root(inode)

allocates and returns a new dentry instantiated with the passed in inode.

On failure NULL is returned and the passed in inode is dropped so the reference

to inode is consumed in all cases and failure handling need not do any cleanup

for the inode.  If d_make_root(inode) is passed a NULL inode it returns NULL

and also requires no further error handling. Typical usage is:

	inode = foofs_new_inode(....);

	s->s_root = d_make_inode(inode);

	if (!s->s_root)

		/* Nothing needed for the inode cleanup */

		return -ENOMEM;

	...

--

[mandatory]

struct file *perf_event_get(unsigned int fd)

{

	struct file *file;

	file = fget_raw(fd);

	struct file *file = fget(fd);

	if (!file)

		return ERR_PTR(-EBADF);