ocfs2: Rename ocfs2_meta_[un]lock

Call this the "inode_lock" now, since it covers both data and meta data.
This patch makes no functional changes.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>

diff --cc fs/ocfs2/alloc.c
Simple merge

diff --cc fs/ocfs2/aops.c
Simple merge

diff --cc fs/ocfs2/dir.c
Simple merge

diff --cc fs/ocfs2/dlmglue.c
Simple merge

diff --cc fs/ocfs2/dlmglue.h
Simple merge

diff --cc fs/ocfs2/export.c
Simple merge

diff --cc fs/ocfs2/file.c
Simple merge

diff --cc fs/ocfs2/inode.c
Simple merge

diff --cc fs/ocfs2/inode.h
Simple merge

diff --cc fs/ocfs2/ioctl.c
Simple merge

diff --cc fs/ocfs2/journal.c
Simple merge

diff --cc fs/ocfs2/localalloc.c
Simple merge

diff --cc fs/ocfs2/mmap.c
Simple merge

diff --cc fs/ocfs2/namei.c
Simple merge

diff --cc fs/ocfs2/suballoc.c
Simple merge

diff --cc fs/ocfs2/super.c
Simple merge