smbfs switched to kvec and kernel_...msg()

Beginning of iovec cleanups - added two helpers (kernel_{send,recv}msg)
that do sock_sendmsg/sock_recvmsg with kvec instead of iovec; basically,
they were abstracted from earlier afs patch.  They take kvec/length of
kvec as separate arguments, do set_fs(), stick kvec into msghdr and call
sock_...msg(). 

The next group of patches will switch network filesystems to use of kvec
for kernel data + use of these helpers.  Basically, the same thing we'd
done for afs.

switched to compat_alloc_user_space(), cleaned up.

 - missing ; between default: and } in sun4setup.c
 - cast of pointer to unsigned long long instead of unsigned long in
   x86_64 signal.c
 - missed annotations for ioctl structure in sparc64 openpromio.h
   (should've been in the same patch as the rest of drivers/sbus/*
   annotations)
 - 0->NULL in list.h and pmdisk.c

A bunch of drivers are broken on sparc64; mark them as such in Kconfig.
arlan and smctr are not 64bit-clean; again, markes as such.

The au88x0 driver tries to use the wrong private field - there are two,
one of them int and another void *.

While it's not a problem on 32bot boxen, it breaks on 64bit ones. 

Fixed.

This works around the current PROT_NONE problem from elf binaries that
do not have the PT_GNU_STACK so that the do not have execute permission.

The problem was that setting "def_flags" to include the VM_EXEC bit for
compatibility reasons would also make PROT_NONE pages executable, which
is obviously not correct.
Signed-off-by: Daniel McNeil <daniel@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

I got sidetracked (I do that a lot ;-) and noticed that there are only
eight files in 2.6 that have code like:

#ifdef MODULE_PARAM
MODULE_PARAM(foo, "i");
#endif

which I think is old cruft from 2.1.x times.  Following patch removes
all those eight (six in netfilter, one net driver and one SCSI driver).

Writing to RAM capable media was broken by the moving of write flag
detection from probe to drive open time.  The media would stay
terminally RO due to the set_disk_ro() call. 

This fixes the code to do the right thing - the detection stays at open
time (which it must, since it depends on the media), and we fail with
-EROFS if the media can't be written.
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

If nobody shouts soon about why the new, shiny, generic chip drivers 
don't work where the old ones do, they can be removed entirely.

and fix a few compiler warnings while we're at it.

It wants reimplementing sanely, preferably in sysfs instead.

This fixes the PPC openpic driver to use cpumask_t where appropriate.
Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-Off-By: Linus Torvalds <torvalds@osdl.org>

The internal interrupts are hardcoded to be level-triggered, but we need
to make sure the OpenPIC code knows that...

The UART tristates its IRQ output when the OUT2 bit in the MCR isn't
set. For reasons not known to civilised man, the hardware engineers
stopped it from floating by pulling it _high_ instead of low, so if
anybody requests that IRQ before OUT2 is turned on, we die in an IRQ
storm. The serial8250 driver does precisely that thing, with precisely
that effect.

ALPHA_KLUDGE_MCR was designed to fix exactly this kind of problem, so we
use it here as intended. Ideally ALPHA_KLUDGE_MCR would go away and be
replaced with something like UPF_FORCE_OUT2 and UPF_FORCE_OUT1 flags,
but now is not the time to get me started on a cleanup of everything
about serial8250 that offends me.

The UART is detected as a ST16650V2 but its FIFO doesn't behave nicely.
Disable autoprobe and hard-code it to be a ST16650 instead.

Just unearthed another of my warcrimes: reading a 17-page sparse file,
I mean holey file, hits the in_interrupt panic in do_exit on a current
highmem kernel (but 2.6.7 is okay).  Fix mismatched preempt count from
shmem_swp_alloc's swapindex hole case by mapping an empty_zero_page.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

into ppc970.osdl.org:/home/torvalds/v2.6/linux

into shinybook.infradead.org:/home/dwmw2/bk/mtd-2.6

 - Handle cached access to flash chips on supporting platforms
 - Handle arrangements of chips larger than a single bus width
 - Clean up the AMD/Fujitsu chip driver
 - Update board 'mapping' drivers to match
 - New mapping drivers for new platforms.

 - Move user-visible bits from headers to include/mtd/ directory.
 - Update old DiskOnChip drivers for newer hardware.
 - Switch NFTL and INFTL support to work with new DiskOnChip/NAND code.
 - New phram driver, reimplenting the ugly slram driver.
 - Bug fixes in partitioning code

 - Improved support for NAND flash
 - More generic compression support, allowing for extra compressors
 - Fix potential deadlock with kupdated

Update the core NAND code:
 - support multiple chips
 - support bad block tables
 - improved generic ECC support and 'spare area' usage.
 - 16-bit NAND
 - Large-block NAND devices
 - Renesas AG-AND devices
 - M-Systems DiskOnChip devices
 - Other new board support wrappers

Most of the work was done by Thomas Gleixner.
Signed-Off-By: David Woodhouse <dwmw2@infradead.org>

into kanga.twiddle.home:/home/rth/work/linux/axp-2.6

This fixes two issues in the CFQ IO-scheduler:

o Still a bad allocation under the queue lock
o We need to clear crq after mempool_alloc(), otherwise the rbtree
  pointers can contain garbage if slab poisoning is enabled. This causes
  crashes on front/back merges because rb_next() returns crap.
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

into ppc970.osdl.org:/home/torvalds/v2.6/linux

into ppc970.osdl.org:/home/torvalds/v2.6/linux

into ppc970.osdl.org:/home/torvalds/v2.6/linux

This fixes following issues for PIO-in:
 - shared PCI IRQs handling
 - fail request if the last status is bad
and PIO-out:
 - set hwgroup->handler/timer in prehandlers
 - handle drive->unmask in prehandlers
 - check for !rq->nr_sectors and DRQ_STAT bit set
 - use drive->bad_wstat instead of BAD_W_STAT
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This fixes a couple of CONFIG_IDE_TASKFILE_IO=n issues:
 - check status after last sector for PIO-in transfers
 - handle drive->unmask properly in PIO-out prehandlers
 - use rq->[hard]_nr_sectors where appropriate
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Don't do partial completions but instead acknowledge already transferred
sectors with verified good status on error.  This allows us to complete
"good" sectors to block layer even if bio they belong to wasn't finished
and simplifies code.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drive_is_ready() reads STATUS register if CONFIG_IDEPCI_SHARE_IRQ is not
defined and ALTSTATUS register if it is defined.  Therefore drive_is_ready()
in pre_task_mulout_intr() only makes sense if we can't trust STATUS register
(because we call ide_wait_stat() which reads STATUS register earlier).

Remove this "workaround" for now as it is not present in ide-disk.c
and whole multi PIO-out code (CONFIG_IDE_TASKFILE_IO=n) was buggy before.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

disable_irq_nosync() in ide-io.c:ide_do_request() protects
pre_task_out_intr() from racing with the task_out_intr().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

We shouldn't ever get there if drive is busy and we can't start transfer
in this case.  ide-disk.c:read_intr() also doesn't check for BUSY_STAT bit.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

We shouldn't ever get into ->handler() if drive is busy so
just call ->error() unconditionally if status check fails.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>