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>

Setup handler and output first data block directly from ->prehandler()
instead of calling ->handler().  The only change in functionality is that
we no longer check DRIVE_READY status bits (there is no need to do it).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

 - in task_out_intr() fix off-by-1 bug and (stat & DRQ_STAT) check,
   previously "if" was always true for rq->current_nr_sectors == 1
 - fail request if DRQ_STAT is not set and rq->current_nr_sectors != 0
   (instead of setting handler and waiting for the next IRQ) or if DRQ_STAT
   is set but !rq->current_nr_sectors (in task_mulout_intr() this was OK)
 - in task_mulout_intr() check also DRIVE_READY and WRERR_STAT status bits
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@elka.pw.edu.pl>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

into kroah.com:/home/greg/linux/BK/driver-2.6

into kroah.com:/home/greg/linux/BK/i2c-2.6

This patch adds a /block/*/removeable sysfs attribute. A value of 1
indicates the media can change anytime. This is a hint for userland
to poll such devices for possible media changes, and leave all others alone.
There is currently no way to see if a connected usb-storage device is a
disk or a card reader. It will also show 1 for CD and ZIP drives.

It was done by Patrick Mansfield a while ago. I can probably not
sigh-off his work. ;)
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

Hi again,

Still doing my compile, and got this:

 CC [M]  security/root_plug.o
security/root_plug.c:39: warning: missing initializer
security/root_plug.c:39: warning: (near initialization for `__parm_vendor_id.addr')
security/root_plug.c:42: warning: missing initializer
security/root_plug.c:42: warning: (near initialization for `__parm_product_id.addr')
security/root_plug.c:48: warning: missing initializer
security/root_plug.c:48: warning: (near initialization for `__parm_debug.addr')

Simply upgrading root_plug to use the new module parameter syntax seemed to do
the trick. I made the debug writable, the others just readable to root.
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

Driver core: platform_device_unregister should release resources first
             and only then call device_unregister, otherwise if there
             are no more references to the device it will be freed and
             the fucntion will try to access freed memory.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

This patch unhides the SMBus on the hp nc8000 and nc6000 laptops. The
patch has been co-written by Jean Delvare and Rudolf Marek. I've only
tested this on nc8000, but it should work for the nc6000 too.

Unfortunatley, we had to little information to fix the problem described
in the reported bug below, as is probably the same problem. But if we're
very lucky it might solve it too.
http://bugzilla.kernel.org/show_bug.cgi?id=2976Signed-off-by: Örjan Persson <orange@fobie.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>

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

The hardware vendor, in their infinite wisdom, make the combined
mode configuration register different between ICH5 and ICH6.

Take this into account.

Obvious bug.  Fixes highmem oops.