Add support for parallel-access-volumes to the dasd driver. This
allows concurrent access to dasd devices with multiple channel
programs.
Signed-off-by: NHorst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

Remove export of the sys_call_table symbol to prevent the misuse of it.
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

The two macros NEW_TO_OLD_UID and NEW_TO_OLD_GID in binfmt_elf32.c
are not used by any code. Remove them.
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

overflowuid and overflowgid were exported twice.  Remove the export
from s390_ksyms.c
Signed-off-by: NSerge E. Hallyn <serue@us.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

After setting a path to a dasd offline at the SE, I/O hangs on that
dasd for 5 minutes, then continues.
I/O for which an interrupt will not be reported after the channel
path has been disabled was not terminated by the common I/O layer,
causing the dasd MIH to hit after 5 minutes.

Be more aggressive in terminating I/O after setting a channel path
offline. Also make sure to generate a fake irb if the device
driver issues an I/O request after being notified of the killed
I/O and clear residual information from the irb before trying to
start the delayed verification.
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

Remove EXPORT_SYMBOL_GPL(avenrun) from appdata_base.c, since it is
already exported in kernel/timer.c
Signed-off-by: NGerald Schaefer <geraldsc@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

as a deprecated kernel_thread to a kthread.
Signed-off-by: NSerge E. Hallyn <serue@us.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

The struct dasd_eer_header needs the packed attribute, or there will
be 6 additional bytes of random data between the fixed header and
the variable length part of the eer data.
Signed-off-by: NStefan Weinhuber <wein@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

The preempt_count in the thread_info structure must be initialized to 1.
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

There is almost no room left for any new code between 0x10000
and 0x10480. Move the code from 0x10000 to 0x11000.
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

Dasd code cleanup: 1) remove white space, 2) remove the emacs override
sections, and 3) use kzalloc instead of kmalloc.
Signed-off-by: NHorst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

If a machine checks interrupts the external or the i/o interrupt
handler before they have completed the cpu time calculations, the
accounting goes wrong. After the cpu returned from the machine check
handler to the interrupted interrupt handler, a negative cpu time delta
can occur.  If the accumulated cpu time in lowcore is small enough
this value can get negative as well. The next jiffy interrupt will pick
up that negative value, shift it by 12 and add the now huge positive
value to the cpu time of the process.
To solve this the machine check handler is modified not to change any
of the timestamps in the lowcore if the machine check interrupted kernel
context.
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

Signed-off-by: NGerald Schaefer <geraldsc@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

The ccw dump function dasd_eckd_dump_ccw_range can crash because
it does not take care about the IDAL flag in the ccw.
Check for IDALs flag set in CCW and follow the indirect list to
print the data that is refered by the ccw.
Signed-off-by: NHorst Hummel <horst.hummel@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

Check the return value of kzalloc in dasd_eer_open.
Signed-off-by: NStefan Weinhuber <wein@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

The initial i/o to a 3270 device is done using the static module variables
raw3270_init_data and raw3270_init_request. If the 3270 device driver is
built as a module and gets loaded above 2GB, the initial i/o will fail
because these variables will get addresses > 2GB. To make it work the
two variables are moved to struct raw3270 and the data structure is
allocated with GFP_DMA.
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

The software watchdog calls machine_restart from a timer function.
The s390 machine_restart calls console_unblank to flush the console
output. This is needed for panic to get the panic message printed.
If console_unblank is called in interrupt a BUG is triggered in
acquire_console_sem. That makes the software watchdog panic instead
of restarting the machine. To get around this problem the call to
console_unblank is made conditionally on !in_interrupt() ||
oops_in_progress.
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

Fix __syscall_return macro: valid error numbers are in the range
of -1..-4095.
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

Changes in the DASD driver require an asynchronous implementation of the
subchannel reprobe loop. This loop was so far only used by the blacklisting
mechanism but is now available to all CCW device drivers.
Signed-off-by: NPeter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

Work around the problem that a device cannot be unregistered from
driver_for_each_device() because of klist node refcounting: Get device
after device owned by the driver to be unregistered with driver_find_device()
and then unregister it. This works because driver_get_device() gets us out of
the region of the elevated klist node refcount. driver_find_device() will
always get the next device in the list after the found one has been
unregistered.
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

Specify correct sizeof() in chp_measurement_read() and return
correct amount of read data.
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

Trying to set a DASD root device online can fail under some circumstances
with the message "Read configuration data returned error -5". The cause
is that read configuration data incorrectly aborts with -EIO when it
encounters a temporary busy condition at a storage server.
Perform retry when encountering temporary busy conditions.
Signed-off-by: NPeter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

The wrong base register is used to read a value from the sclp data
structure. The value is used to calculate the memory size.
Use correct register %r4.
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

show_stack() passes a pointer to the current stack frame to show_trace().
Because of tail call optimization the pointer doesn't point to the original
stack frame anymory and therefore traces are wrong. Don't pass the pointer
of the current stack frame to show_trace(). Instead let show_trace()
calculate the pointer on its own.
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

Encapsulate complete bitops.h with #ifdef __KERNEL__ and remove the now
superfluous ALIGN_CS define and its users.
This patch is needed for compiling klibc.
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>

The recent vsnprintf() fix introduced an off-by-one, and it's now
possible to overrun the target buffer by one byte.

The "end" pointer points to past the end of the buffer, so if we
have to truncate the result, it needs to be done though "end[-1]".

[ This is just an alternate and simpler patch to one proposed by Andrew
  and Jeremy, who actually noticed the problem ]
Acked-by: NAndrew Morton <akpm@osdl.org>
Acked-by: NJeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

* 'nommu' of master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] nommu: backtrace code must not reference a discarded section
  [ARM] nommu: Initial uCLinux support for MMU-based CPUs
  [ARM] nommu: prevent Xscale-based machines being selected
  [ARM] nommu: export flush_dcache_page()
  [ARM] nommu: remove fault-armv, mmap and mm-armv files from nommu build
  [ARM] Remove TABLE_SIZE, and several unused function prototypes
  [ARM] nommu: Provide a simple flush_dcache_page implementation
  [ARM] nommu: add arch/arm/Kconfig-nommu to Kconfig files
  [ARM] nommu: add stubs for ioremap and friends
  [ARM] nommu: avoid selecting TLB and CPU specific copy code
  [ARM] nommu: uaccess tweaks
  [ARM] nommu: adjust headers for !MMU ARM systems
  [ARM] nommu: we need the TLS register emulation for nommu mode

* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 3672/1: PXA: don't probe output GPIOs for interrupt
  [ARM] 3671/1: ep93xx: add cirrus logic edb9315 support
  [ARM] 3370/2: ep93xx: add crunch support
  [ARM] 3665/1: crunch: add ptrace support
  [ARM] 3664/1: crunch: add signal frame save/restore
  [ARM] 3663/1: fix resource->end off-by-one thinko during physmap conversion
  [ARM] 3662/1: ixp23xx: don't include asm/hardware.h in uncompress.h
  [ARM] 3660/1: Remove legacy defines
  [ARM] 3661/1: S3C2412: Fix compilation if CPU_S3C2410 only
  [ARM] 3658/1: S3C244X: Change usb-gadget name to s3c2440-usbgadget
  [ARM] Remove the __arch_* layer from uaccess.h

* master.kernel.org:/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  [WATCHDOG] Documentation/watchdog update
  [WATCHDOG] convert AT91RM9200 watchdog to platform driver
  [WATCHDOG] add WDIOC_GETTIMELEFT ioctl
  [WATCHDOG] Pre-Timeout flags

plist.h uses container_of, which is defined in kernel.h.
Include kernel.h in plist.h as the kernel.h include does not longer
happen automatically on all architectures.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

This patch adds earlier initialization of spi_device.mode, as needed
on boards using nondefault chipselect polarity.  An example would be
ones using the RS5C348 RTC without an external signal inverter between
the RTC chipselect and the SPI controller.

Without this mechanism, the first setup() call for that chip would
wrongly enable chips, corrupting transfers to/from other chips sharing
that SPI bus.
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

* master.kernel.org:/pub/scm/linux/kernel/git/dtor/input:
  Input: db9 - fix potential buffer overrun
  Input: atkbd - fix hardware autorepeat
  Input: wistron - add mapping for Wistron MS 2111

Remove the hard coded ROM region setups. Use Kconfig options to specify
these in a generic way for platorms that want them.

This builds on top of the other recent m68knommu linker script changes
to completely remove fixed board configurations.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Use Kconfig options to setup the optional ROM region used on some
platforms. We used to define this in the linker script on a per
board basis. The configure options are more flexible and clean up
the linker script a lot.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Fix 68EZ328/config.c asm to be clean for new gcc versions.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Fix 68VZ328/config.c asm to be clean for new gcc versions.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Fix 68360/config.c asm to be clean for new gcc versions.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

The irqnode_t struct has moved to irqnode.h, need to include that
68360 ints.c.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Fix clobber list in uCsimm/uCdimm boot load helper asm.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

Conditionaly compile the 68328 romvec code based on the ROM configuration
being enabled.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>