s390 core changes:
 - Force user process back to home space mode in space switch event
   exception handler.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Add a couple entries to the linker script which are needed for SMP to link.
(From Yan Burman)
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

- Make CONFIG_SMP depend on TT mode. Since SMP does not work in SKAS mode
  (it's still a TODO), add the dependency in the Kconfig. Also mark CONFIG_SMP
  as experimental.
- Workaround kconfig warning: just for now (we wait for a "CONFIG_VIRTUAL_OS"
  to exclude physical hardware) create the CONFIG_INPUT option (fixed to N),
  to avoid complaints from make *config ARCH=um about it being undefined.
- Mark HPPFS as broken and needing updates.
- Update defconfig, both for new kernel options and for changes in the actual
  config. For instance, enable module support by default.
- Update help text for some items and add a help to some other ones.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Some small fixes for the SOFTWARE_SUSPEND help text.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

power_down may never ever fail, so it does not really need to return
anything.  Kill obsolete code and fixup old comments.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch is from John Rose <johnrose@austin.ibm.com>.

The function __ioremap_explicit() misses a possible (obscure) case when
reserving the imalloc area for the new region.  This can result in the
unexpected DLPAR-add failure for an I/O slot.  The failure will be
characterized by a kernel message resembling "could not obtain imalloc area
for ea 0x..." Here's an explanation:

At boot time, imalloc regions are created for the ranges of all PHBs.  Upon
removal of a child slot for one of these PHBs, the imalloc region is split
so that the region for the child slot can be removed.

A GFW testcase revealed the following scenario.  A PHB is remapped at boot
for virtual address range A through C.  At boot, the partition owns a slot
that spans from A to B.  This slot is DLPAR-removed, leaving an imalloc
region from B to C.  At this point, the user DLPAR adds an EADS slot that
was not present at boot, but is a child of the PHB.  The new slot happens
to have a range that directly matches the leftover PHB range, from B to C. 
The existing code does not expect this, so the operation fails.
Signed-off-by: John Rose <johnrose@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch is from John Rose <johnrose@austin.ibm.com>.

The patch below creates iommu_free_table().  Iommu tables are not currently
freed in PPC64.  This could cause a memory leak for DLPAR of an EADS slot. 
The function verifies that there are no outstanding TCE entries for the
range of the table before freeing it.  I added a call to iommu_free_table()
to the code that dynamically removes a device node.  This should be fairly
symmetrical with the table allocation, which happens during dynamic
addition of a device node.
Signed-off-by: John Rose <johnrose@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch is from Linas Vepstas <linas@austin.ibm.com>.

Race conditions during system shutdown after a firmware flash can sometimes
lead to an invalid pointer deref (deref to freed memory).  This patch fixes
this.  In addition, it makes sure that the proc entries created by the
firmware flash module are removed when the module is unloaded. 
Signed-off-by: Linas Vepstas <linas@linas.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

When the EEH (enhanced i/o error handling) hardware on pSeries detects
various kinds of PCI errors, it immediately freezes and isolates the slot
of the offending PCI card.  We get to know about that by noticing that
reads from the device return all-1s, and then we have to do a firmware call
to find out whether the all-1s value was due to a slot isolation.

This patch adds a notifier so that other parts of the system (e.g.  the RPA
PCI hotplug driver) can know that a slot isolation event has occurred and
take whatever recovery action is appropriate.  The notifier is called in a
workqueue function, although the read from the device that noticed the
all-1s value may have been at interrupt level.  As a precaution, if we keep
trying to read from the device at interrupt level, and do 1000 reads
without the workqueue getting a chance to run, we panic, on the grounds
that we presumably have a badly-written driver which will spin forever in
its interrupt routine, e.g.  waiting for a bit in a device register to go
to 0.

This patch is based on an earlier patch by Linas Vepstas <linas@linas.org>.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch removes many sparse warnings from the xmon code.  Mostly K&R
function declarations and 0-instead-of-NULLs.  There are still a whole
bunch of warnings in xmon/ppc-opc.c, which is a copy of a file from
binutils.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch squashes a handful of assorted sparse warnings in the ppc64
code.  Should be pretty much trivial and self explanatory.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Only compile vio.c on iSeries and pSeries, since other PPC64 platforms
(PowerMac) don't use virtual IO.  The resulting #ifdefs in dma.c are kind
of ugly, but at least contained, and I can't see a nicer way of doing it
for the time being.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Since we directly -include $(clear_L2_L3) when needed, we need to point to
the full path of it.
Signed-off-by: Tom Rini <trini@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

With this we're back to the times when changing skbuff.h only triggers
rebuild of _net_ related stuff 8)

This uncovered a bug in rmap.h, that was not including mm.h to get the
definition of struct vm_area_struct, working by luck.
Signed-off-by: Arnaldo Carvalho de Melo <acme@conectiva.com.br>
Signed-off-by: Chris Wright <chrisw@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Stephen Smalley notes that send_sigurg isn't mediated by LSM in the same
manner as send_sigio.  Patch below is a slight modification of Stephen's
original patch.  It moves the security_file_send_sigiotask() hook into the
sigio_perm().  The hook's fd and reason arguments are replaced with the
signum.  sigio_perm() and it's callers are updated to pass the signum
through to the hook.  In send_sigio case, the signum is simply fown->signum
or SIGIO when signum is 0, however in send_sigurg the kernel doesn't use
fown->signum, it always sends SIGURG.

From: Stephen Smalley <sds@epoch.ncsc.mil>
Signed-off-by: Chris Wright <chrisw@osdl.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Add support for x86_64 arch. to 'make checkstack' (checkstack.pl).
Signed-off-by: Randy Dunlap <rddunlap@osdl.org>
Acked-by: Jrn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Uses the zero length array which seems to be quite abundant throughout the
tree to reduce the size of the zone padding to zero.

1536 before, 1152 afterwards for me.

Also try to be a bit smarter about getting commonly accessed fields
together, which surely can't be worse than before.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

sound/oss/msnd.c: In function `msnd_enable_irq':
sound/oss/msnd.c:278: warning: implicit declaration of function `enable_irq'
sound/oss/msnd.c: In function `msnd_disable_irq':
sound/oss/msnd.c:307: warning: implicit declaration of function `disable_irq'

sound/oss/msnd.c:323: `msnd_get_num_devs' undeclared here (not in a function)
sound/oss/msnd.c:323: initializer element is not constant
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This patch shifts the key-related error codes up by one and inserts an
ECANCELED error code where not already defined.  It seems that has been
defined in glibc without passing it back to the kernel:-/
Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Patch adds a check of the return value and returns -EFAULT if
__copy_to_user fails.
Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Acked-by: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This was the wrong fix - back it out and try again later.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

This allows for low-latency BKL contention even with
preemption. Previously, since preemption is disabled
over context switches, re-acquiring the kernel lock when
resuming a process would be non-preemtible.

Jeff already mistakenly sent in a user of this macro, so we should
probably add the macro itself too.
Signed-off-by: Hanna Linder <hannal@us.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

The stop_self thing is accessed unconditionally from pSeries_setup.c

This will get rid of the stack recursion possibility that can occur if
an IRQ happens to hit the IRQ return path right after we've reset
preempt_count() to 0 and are about to disable interrupts again.
Trivially fixed by just moving the preempt count update to inside the
interrupt disable.

This makes the current PREEMPT_ACTIVE method fully work for IRQ
recursions.

Avoid naming confusion concerning "pc_debug" which is widely used by drivers
be renaming the PCMCIA "driver services" variant to ds_pc_debug. The module
parameter stays the same, thanks to module_param_named().
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.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

into pobox.com:/garz/repo/net-drivers-2.6

into pobox.com:/garz/repo/net-drivers-2.6

into pobox.com:/garz/repo/net-drivers-2.6

into pobox.com:/garz/repo/net-drivers-2.6

Signed-off-by: Linus Torvalds <torvalds@osdl.org>

SCx200_ACB is a PCI driver and thus should depend on PCI
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Remove unneeded cast that causes a warning (cy_isa_addresses is an array
of unsigned ints).
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/ntfs/compress.c calls v{malloc,free}() without including <linux/vmalloc.h>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>