The comment in nfs_get_root() basically describes the patch:

    Some authentication types (gss/krb5, most notably)
    are such that root won't be able to present a
    credential for GETATTR (ie, getroot()).

An easy way (ie, without this patch) to have unattended mounts is to
have a root/host@REALM (or similar) principal stashed in a keytab, which
root (rather, gssd) can use.  However, this might not be desirable for
many sites.  In any case, RFC2623 specifically describes the problem
addressed here.

Notes:

- Root inode gets inum of 1.  This doesn't seem to matter, but may be
  aesthetically unpleasing.  I wanted to choose an inum unlikely to
  conflict with an existing inum (although NFS has specific support
  for that).  It looks like more work than it's worth to change the
  inum after the info is available.  AFAICT it's not critical info.

- Solaris has this "wierd" (but understandable)  behavior that after
  mounting without a credential, the mount point is not visible at all
  until an access is attempted with a credential.  This now-you-see-it-
  now-you-don't behavior doesn't seem worthwhile to reproduce here.

- Unfortunately, MOUNT_VERSION must go to 5.  Some kernels with ver 4
  do not understand pseudoflavor.  Keeping it at 4 means that the
  userland mount can't know for sure whether the kernel accepted the
  option or not.  (Unless I'm missing some hack that could be done.)

It works in my environment, against a netapp server (with the rpcsec_gss
patch I provided earlier).

 - fix null dereference on xprt->inet if (!connected), which happens if
   a rpc cred wasn't available (root+auth_gss case)
 - set bufsize on reconnect

start gss seq no at 1; netapp doesn't accept seq no 0.

Just as a data point, Solaris 9 client uses initial seq. no. 2.

into home.osdl.org:/home/torvalds/v2.5/linux

into home.osdl.org:/home/torvalds/v2.5/linux

This is a follow-up patch to my latest patch series.  It fixes the
problems and flaws Greg KH pointed out.

There was a typo in the Makefile, so the driver was never compiled.  But
I assumed that it built without errors.  Doh!

 - update the Technisat Skystar2 driver:
         - follow kernel coding rules, change comments
         - change function return values from u32 to int where possible
         - make all functions static
         - comment out unused functions
         - fix return values of functions to follow kernel rules
         - removed bogus delay, read and write functions

 - add two new usb dvb drivers:
   o dvb-ttusb-budget.c for Technotrend/Hauppauge Nova-USB devices
     (Thanks to Holger Waechtler <holger@convergence.de> and elix Domke
     <tmbinc@gmx.net>)
   o dvb-ttusb-dec.c for Technotrend/Hauppauge USB DEC2000-T devices
     (Thanks to Alex Woods <linux-dvb@giblets.org>)

 - fix DMX_GET_STC to get the msb right
 - follow changes in saa7146 driver core, separate some data for DVB-C
   and DVB-S cards

 - In alps_tdlb7.c read SP8870 status reg to clear pending irqs in
   FE_SET_FRONTEND, as suggested by Ragnar Sundblad to avoid frontend
   hang-ups.
 - the vp310 support in mt312.c support should be configured to 90Mhz,
   too.  skystar2 driver with bugfixed master_xfer() should probably
   work now.

 - tda1004x DVB-T driver contributed by Andrew de Quincy and Robert
   Schlalach

 - add drivers for the Orion and Gemini frame grabber cards, based on
   the saa7146.  For details, see http://www.hexium.hu/.  Thanks to
   Michael Hunold <michael@mihu.de>.

 - add DVB driver for Technisat Skystar2 card, which is based on the
   FlexCop2 chipset by B2C2

 - separate all EXPORT_SYMBOL stuff to saa7146_ksyms.c
 - properly stop capturing when no more buffers are available (missing
   register upload)
 - make extension data a per-device member, not a per-extension member,
   so that every device can have it's own private data (necessary for
   DVB drivers which handle more than one device)
 - implement field based capturing, ie.  capturing fields to different
   capture buffers
 - change default old of capture fields for ALTERNATE mode (comply with
   bttv)
 - follow these changes in various analog saa7146 based cards drivers
   (mxb.c and dpc7146.c)
 - follow these changes in various saa7146 based budget card drivers

 - Fix to 'Sharing SDRAM between TT re-insertion and OSD...' - OSD
   didn't get the maximum available memory in one piece; needs new
   firmware version 0x2616
 - Improved performance when setting palette with full 256 color OSD
 - read MAC from EEPROM if available, contributed by Michael Glaum
   <mglaum@kvh.com>
 - add some MODULE_PARM_DESC for modinfo
 - add support for the "analog module" available for DVB-C cards: the
   saa7113 is initialized and some more v4l2 ioctls are available.  you
   can use "xawtv" now to switch between "dvb" and "analog" input.  when
   you are one the "analog" input, you can tune in analog channels.

 - follow changes in dvb_net, use new eeprom parse code to properly
   detect the mac
 - add new subvendor/subystem id pair

 - Zarlink MT312 satellite channel decoder driver contributed by Andreas
   Oberritter

 - grundig_29504-401.c: fix charge pump and band switch setting bug,
   caught by Robert Schlabbach <robert_s@gmx.net>
 - grundig_29504-401.c: pass apply_frontend_param() return value to
   upper layers
 - grundig_29504-401.c: try to make a more specific detection mechanism
 - grundig_29504-491.c:remove bogus out-of-range check, FEC table index
   is limited to 0...7 due to &= ~0x03 anyway...
 - nxt6000.c: Patch by Paul Andreassen: Add Support for Comtech
   DVBT-6k07 (PLL IC: SP5730)
 - ves1820.c: use Robert Schlabbach's suggestions for CLKCONF (0x03) and
   CARCONF (0x04)
 - alps_bsrv2.c: don't enable voltage on init + inversion bugfix

 - code review and fix the old race condition in dev->set_multicast_list
 - use tq_schedule instead of tq_immediate
 - remove card_num and dev_num from struct dvb_net (now obsolete)
 - prevent interface from being removed while it is in use
 - allow add/remove only for the superuser
 - set check-CRC flag on section filter to drop broken packets
 - some more debug printfs in filter handling code
 - cleaned up and commented packet reception handler
 - fix formatting

 - indentation fixes in dvb_demux.c
 - include cleanup in various files
 - simplify dvb/ttpci/Makefile

 - fix WRITE_RPS0 and WRITE_RPS1 inlines, fix usage in mxb and budget
   drivers
 - export "saa7146_start_preview" and "saa7146_stop_preview" to allow
   drivers to start and stop video overlay (necessary for analog module
   support in the av7110 driver)
 - fix i2c implementation: some frontend drivers transfer a huge amount
   of firmware data (> 30kB), speed up the transmission by busy waiting
   between byte transfers for bigger transmissions
 - change ioctl function in various driver to accept a saa7146
   filehandle instead of a saa714 device structure

The CDROM_SEND_PACKET ioctl passes a struct cdrom_generic_command from
user space, which contains a timeout field.

The timeout is measured in jiffies, but the conversion from user to
kernel jiffies is missing, which makes the timeout 10 times shorter than
it should be in 2.5 kernels on x86.  This causes CDRW formatting with
cdrwtool to fail.  The following patch fixes this problem.

The kernel build leaves a temp file in linux/usr/ that make clean
doesn't remove.  Fixed in the patch below.

some rather minimal overflow protection. 

into home.osdl.org:/home/torvalds/v2.5/linux

into home.osdl.org:/home/torvalds/v2.5/linux

All of the cleanup functions in sound/oss/emu10k1/main.c were incorrectly
marked as __devinit. This little one fixes it, so that the module no longer
oopses when being removed.

into home.osdl.org:/home/torvalds/v2.5/linux

From Alexander Atanasov <alex@ssi.bg>

Fix DMA I/O and state machine fixes, error recovery

Since the IO-APIC irq disable fix went in we can now enable
the proper IRQ disabling in the IDE driver again. That had
been disabled due to the problems with UP IO-APIC.

into home.osdl.org:/home/torvalds/v2.5/linux

on 2.5+, since ppc64 can (and does) use the PCI domain numbers
for this instead.

The PCI domain support should be back-ported to 2.4.x rather
than having bigger PCI bus numbers.

Cset exclude: jgarzik@pobox.com|ChangeSet|20030714162217|61624

	tell the compiler that per-CPU variables can be addressed
	with "addl".

	On the simulator kernel, this saves about 2776 bytes in the
	kernel image.  On a zx1 kernel, it saves about 5593 bytes.
	As per-CPU variables are used more, these savings will
	increase, of course.

This will fix the generic compile by removing sn2 from the list of
targets, since it depends on the new discontig code, which hasn't gone
in yet.