Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
ocfs2: Remove overzealous BUG_ON()
ocfs2: Don't print on unknown remote blocking call
ocfs2: Remove EXPERIMENTAL dependency
ocfs2: implement directory read-ahead
ocfs2: properly update i_mtime on buffered write
ocfs2: Fix directory link count checks in ocfs2_link()
ocfs2: move nlink check in ocfs2_mknod()
ocfs2: Fix heartbeat sector calculation
[PATCH] fs/ocfs2/ioctl.c should #include "ioctl.h"
ocfs2: add ext2 attributes
configfs: Prevent duplicate subsystem names.