Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

- Fix a typo in a comment.
- Whitespace fix.
- Remove #if 0'd BSD 4.x code for flushing busy buffers from a mountpoint
during an unmount. FreeBSD uses vflush() for this.

Forced commit and #include changes for repo copy from
sys/isofs/cd9660 to sys/fs/cd9660.

Discussed on freebsd-current.

Make VOP_BMAP return a struct bufobj for the underlying storage device
instead of a vnode for it.

The vnode_pager does not and should not have any interest in what
the filesystem uses for backend.

(vfs_cluster doesn't use the backing store argument.)

Move CD9660 to GEOM backing instead of DEVFS.

For details, please see src/sys/ufs/ffs/ffs_vfsops.c 1.250.

Remove advertising clause from University of California Regent's
license, per letter dated July 22, 1999 and email from Peter Wemm,
Alan Cox and Robert Watson.

Approved by: core, peter, alc, rwatson

Use __FBSDID().

Include systm.h for panic(9) so that DEBUG_ALL_VFS_LOCKS compiles.

Revert consequences of changes to mount.h, part 2.

Requested by: bde

Correct #includes to work with fixed sys/mount.h.

$Id$ -> $FreeBSD$

Removed unused #includes.

Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.

This is the kernel Lite/2 commit. There are some requisite userland
changes, so don't expect to be able to run the kernel as-is (very well)
without the appropriate Lite/2 userland changes.

The system boots and can mount UFS filesystems.

Untested: ext2fs, msdosfs, NFS
Known problems: Incorrect Berkeley ID strings in some files.
Mount_std mounts will not work until the getfsent
library routine is changed.

Reviewed by: various people
Submitted by: Jeffery Hsu <hsu@freebsd.org>

Make the long-awaited change from $Id$ to $FreeBSD$

This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.

Added VOP_GETPAGES/VOP_PUTPAGES and also the "backwards" block count
for VOP_BMAP. Updated affected filesystems...

Added $Id$

BSD 4.4 Lite Kernel Sources