[PATCH 0/4] XFS iget fixes

[Christoph Hellwig]

These should fix the fallout from the xfs_inode/VFS inode merge.  The first
patch contains just locking changes to the iget hit patch and is conceptually
unrelated to the rest, but required for them to apply.

The other three patches deal basically with the problem that we really
don't want to delete the inode that won the race and got added to the inode
cache radix tree when we free the inode that lost it.  To do so we need
to change the hooks into inode.c that were exported only for this kind of
use in XFS.