Replace a bunch of file->dentry->d_inode refs with file_inode()

Replace a bunch of file->dentry->d_inode refs with file_inode().

In __fput(), use file->f_inode instead so as not to be affected by any tricks
that file_inode() might grow.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --cc fs/file_table.c
Simple merge

diff --cc include/linux/fsnotify.h
Simple merge

diff --cc security/integrity/ima/ima_main.c
Simple merge