nilfs2: add omitted comments for different structures in driver implementation

Add omitted comments for different structures in driver implementation.

Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --cc fs/nilfs2/alloc.h
Simple merge

diff --cc fs/nilfs2/bmap.h
Simple merge

diff --cc fs/nilfs2/btnode.h
Simple merge

diff --cc fs/nilfs2/dat.c
Simple merge

diff --cc fs/nilfs2/export.h
Simple merge

diff --cc fs/nilfs2/ifile.c
Simple merge

diff --cc fs/nilfs2/inode.c
Simple merge

diff --cc fs/nilfs2/mdt.h
Simple merge

diff --cc fs/nilfs2/nilfs.h
Simple merge

diff --cc fs/nilfs2/sufile.c
Simple merge

diff --cc fs/nilfs2/the_nilfs.h
Simple merge