Adjust the cvs branch for 'make update'.

Approved by:	re (implicit)
Adjust cvs branch tag.

Approved by:	re (implicit)
Adjust __FreeBSD_version to reflect this is the 8.1 release branch.

Approved by:	re (implicit)
Ready for 8.1-RC1.

Approved by:	re (implicit)
MFC: r209138

Update a branch missed in r207537 (committed to stable/8 in r207890).

Approved by:	re (kib)
MFC r209273:
  Fix uninitialized variables that cause a crash when the network is
  initialized and sysinstall is not running as init.

Submitted by:	Nick Mills
Approved by:	cperciva (mentor)
Approved by:	re (kensmith)
MFC r209265:

r209260:

Backout r207970 for now, it can lead to deadlocks.

Reported by:	kan

r209261:

Turn off UMA allocations on all archs by default. It isn't stable even
on amd64.

Reported by:	many

Approved by:	re (kib)
MFC revs 209026 and 209085:
o   Bump MAX_BPAGES from 256 to 1024.
o   Synchronize the kernel entry on all CPUs with the use of the ptc.g
    instruction on a single CPU by implementing a bare-bones readers-
    writer lock.

Approved by:	re (kensmith)
MFC 209264
 * Fix a bug where the length of the ASCONF-ACK was calculated wrong due
   to using an uninitialized variable.
 * Fix a bug where a NULL pointer was dereferenced when interfaces
   come and go at a high rate.
 * Fix a bug where inps where not deregistered from iterators.
 * Fix a race condition in freeing an association.
 * Fix a refcount problem related to the iterator.
 Each of the above bug results in a panic. It shows up when
 interfaces come and go at a high rate.

Approved by: re
merge r196650 from head (via stable/8): tty might be NULL

Approved by:	re (kib@)
MFC 209286:

Add the AAAA address for i.root-servers.net

Approved by:	re (kensmith)
MFC r209340:
Report transport type in XPT_PATH_INQ.

PR:		i386/147929
Approved by:	re (kib)
MFC r209341:
Report transport type in XPT_PATH_INQ.

Approved by:	re (kib)
MFC r209369:
Temporarily disable instruction relocation while setting up the kernel's
IBAT entry in early boot in order to prevent possible faults from races
between the instruction cache and the MMU.

PR:		powerpc/148003
Approved by:	re (kib)
MFC 209213:
When updating individual CPU's lowest Cx state to use, never set it to a
state lower than the lowest one supported by the current CPU.  This closes
some races with changes to the hw.acpi.cpu_cx_lowest sysctl while Cx
states for individual CPUs were changing (e.g. unplugging the AC adapter
of a laptop) that could result in panics.

Approved by:	re (kib)
MFC r209262:

r209186:

BIO_DELETE contains range we want to delete and doesn't provide any
useful data, so there is no need to copy it to userland.

r209187:

'unit' can be negative, so use signed type for it.

Found by:	Coverity Prevent
CID:		3731

Approved by:	re (kensmith)
MFC r209263:

r209175:

Eliminate dead code.

Found by:	Coverity Prevent
CID:		5158

r209177:

Remove macros that are not really needed. The idea was to have them in case
we grow more descriptors, but I'll reconsider readding them once we get there.

Passing (a = b) expression to FD_ISSET() is bad idea, as FD_ISSET() evaluates
its argument twice.

Found by:	Coverity Prevent
CID:		5243

r209179:

Plug memory leaks.

Found by:	Coverity Prevent
CID:		7052, 7053, 7054, 7055

r209180:

Plug memory leak.

Found by:	Coverity Prevent
CID:		7051

r209181:

Plug memory leak.

Found by:	Coverity Prevent
CID:		7056

r209182:

Plug memory leak.

Found by:	Coverity Prevent
CID:		7057

r209183:

Initialize gctl_seq for synchronization requests.

Reported by:	hiroshi@soupacific.com
Analysed by:	Mikolaj Golub <to.my.trociny@gmail.com>
Tested by:	hiroshi@soupacific.com, Mikolaj Golub <to.my.trociny@gmail.com>

r209184:

Fix typos.

r209185:

Correct various log messages.

Submitted by: Mikolaj Golub <to.my.trociny@gmail.com>

Note that without some of these changes hastd won't work on 8.x properly.

Approved by:	re (kensmith)
MFC	r208553

This patch fixes the problem where proxy ARP entries cannot be added
over the if_ng interface.

Approved by:	re (bz)
Ready to proceed with 8.1-RC2.

Approved by:	re (implicit)
MFC r209541, r209548:
  Fix the AR_SREV_MERLIN_20_OR_LATER() check.

Approved by:	re (kensmith)