Forced commit to document a cast correction needed to get
clean compiles using either old or new API.  I should
have just committed this one-line fix separately.  Apologies.

Approved by: re (Ken Smith)
Before doing compile_re() which needs a parameter to identify
whether we should ignore case, determine the flag by calling
compile_flags() first.  Also, make sure that we obtain an
initialized cmd->u.s buffer before processing further.  We
may want to refine this solution later, but for now, make
the changes in order to unbreak world build after a sed(1)
with rev. 1.29 of compile.c is installed.

Approved by:	re (hrs)
Add a test case for sed(1) regression - we should not ignore case
when not being asked to do so.

Approved by:	re (hrs)
uhub already does the printing and naming of a device, so don't do it
again here for compat drivers.

Approved by: re@ (blanket)
Trivial differences with the proposed merged BSD usbdevs file merged
in.  These are exclusively in the name of the company for this round.
No new devices have been added, but the MITEL entry has been
eliminated because nothing uses it.  You won't see any difference
unless you have USBVERBOSE defined for the kernel.

Approved by: re@ (blanket)
When a cached page is reactivated in vm_fault(), update the counter that
tracks the total number of reactivated pages.  (We have not been
counting reactivations by vm_fault() since revision 1.46.)

Correct a comment in vm_fault_additional_pages().

Approved by:	re (kensmith)
MFC after:	1 week
Minor UDPv4 cleanup: capitalize comment, move statistics update after mbuf
free to be consistent with other error handling, and release socket buffer
lock before freeing mbufs and statistics updates rather than after.

Approved by:	re (kensmith)
Fix installworld:  /usr/bin/printf isn't available then,
so use awk's printf for the formatting here instead.

Pointy hat: Yours Truly
Approved by: re
Actual code shows several problems in ia32 LDT handling:
- When a LDT entry changes, the old one is freed while it is still
  referenced by gdt and ldtr.  This can lead to disruptive behaviours in
  particular on SMP machines.
- When a LDT entry changes, it is assumed that the only one entity sharing
  the same LDT are threads in the same proc.  It doesn't take in account
  edge cases where two processes share the same VM (rfork'ed ones, for
  example).

This patch addresses these two problems and addictionally it fixes the
usage of refcount switching back it to the old manually-grown refcount
(since in this case would be faster).

Diagnosed by: tegge
Tested by: pho (a former version)
Reviewed by: kib
Approved by: jeff (mentor)
Approved by: re
Now that we have a function that can be called from a cdevsw close()
entry point, use it.

Approved by:	re
Fix a bug of retrieving configuration ROM.
- Handle directories and leaves other than unit directories and text leaves
  correctly.
- Now we can retrieve CROM of iSight correctly.

Approved by: re (hrs)
Tested by: flz
MFC after: 3 days
MFp4:
 - Plug memory leak.
 - Respect underlying vnode's properties rather than assuming that
   the user want root:wheel + 0755.  Useful for using tmpfs(5) for
   /tmp.
 - Use roundup2 and howmany macros instead of rolling our own version.
 - Try to fix fsx -W -R foo case.
 - Instead of blindly zeroing a page, determine whether we need a pagein
   order to prevent data corruption.
 - Fix several bugs reported by Coverity.

Submitted by:	Mingyan Guo <guomingyan gmail com>, Howard Su, delphij
Coverity ID:	CID 2550, 2551, 2552, 2557
Approved by:	re (tmpfs blanket)
NULL_LDT_BASE is used in !SMP kernels too and set_user_ldt() is not
properly called. Address these two issues.

Reported by: Tinderbox
Tested by: le
Approved by: jeff (mentor)
Approved by: re
Eliminate the special case handling of OBJT_DEVICE objects in
vm_fault_additional_pages() that was introduced in revision 1.47.  Then
as now, it is unnecessary because dev_pager_haspage() returns zero for
both the number of pages to read ahead and read behind, producing the
same exact behavior by vm_fault_additional_pages() as the special case
handling.

Approved by: re (rwatson)
Fix typo.

Reported by:	Danny Braniss <danny at cs dot huji dot ac dot il>
Approved by:	re (bmah)
dma_tag is a static structure. Testing for it being a NULL pointer
doesn't make sense. Rewrite to what was intended.

Correctly warned about by: GCC
Approved by: re (bmah)
More vendors from the merged list.
Sort NETGEAR list per convention.
Swap QUALCOMM and QUALCOMM2.
Add a few vendor products.

no md5 changes with this file (except when USBVERBOSE is enabled)

Approved by: re@ (blanket)
Further diff reduction against the proposed merged usbdevs: Add a few
more vendors, use slightly more standardized names.

No md5 chagnes for !USBVERBOSE kernels

Approved by: re@ (blanket)
document the call to wakeup after a task has been run...

Approved by:	re (hrs)
MFC after:	3 days
Correct a reference-counting mistake in the ZFS code which led to abnormal
memory usage and pessimal cache performance.

Reviewed by: pjd
Approved by: re (rwatson)