Merge branch 'next' into for-linus

Documentation/keys-request-key.txt

Documentation/keys.txt

arch/x86/Kconfig

fs/btrfs/inode.c

fs/btrfs/xattr.c

fs/btrfs/xattr.h

fs/cachefiles/namei.c

fs/ext2/ext2.h

fs/ext2/ialloc.c

fs/ext2/namei.c

fs/ext2/xattr.h

fs/ext2/xattr_security.c

fs/ext3/ialloc.c

fs/ext3/namei.c

fs/ext3/xattr.h

fs/ext3/xattr_security.c

fs/ext4/ialloc.c

fs/ext4/xattr.h

fs/ext4/xattr_security.c

fs/file_table.c