Merge branch 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-block

[PATCH] alpha: set cpu_possible_map much earlier

All the percpu data structure walkers want cpu_possible_map to be
initialized early, but alpha instead populated "hwrpb_cpu_present_mask"
early in setup_smp(), and then initialized cpu_possible_map only much
later.

Thanks go to Heiko Carstens and Dipankar Sarma for noticing.

This fixes it and we can get rid of hwrpb_cpu_present_mask entirely.

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

[PATCH] SLOB=y && SMP=y fix

fix CONFIG_SLOB=y (when CONFIG_SMP=y): get rid of the 'align' parameter
from its __alloc_percpu() implementation. Boot-tested on x86.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] block: implement elv_insert and use it (fix ordcolor flipping bug)

q->ordcolor must only be flipped on initial queueing of a hardbarrier
request.

Constructing ordered sequence and requeueing used to pass through
__elv_add_request() which flips q->ordcolor when it sees a barrier
request.

This patch separates out elv_insert() from __elv_add_request() and uses
elv_insert() when constructing ordered sequence and requeueing.
elv_insert() inserts the given request at the specified position and
does nothing else.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Acked-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

ppc: fix up trivial Kconfig config selection

Quoth BenH:
  "Ok, looks like I forgot to update the Kconfig for the new i2c driver,
   it should select I2C_POWERMAC instead.  Do you want a new patch or
   can you just fix it there ?"

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

[PATCH] blk: Fix SG_IO ioctl failure retry looping

When issuing an SG_IO ioctl through sd that resulted in an unrecoverable
error, a nearly infinite retry loop was discovered. This is due to the
fact that the block layer SG_IO code is not setting up rq->retries. This
patch also fixes up the sg_scsi_ioctl path.

Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: Jens Axboe <axboe@suse.de>

[PATCH] powerpc: Thermal control for dual core G5s

This patch adds a windfarm module, windfarm_pm112, for the dual core G5s
(both 2 and 4 core models), keeping the machine from getting into
vacuum-cleaner mode ;) For proper credits, the patch was initially
written by Paul Mackerras, and slightly reworked by me to add overtemp
handling among others. The patch also removes the sysfs attributes from
windfarm_pm81 and windfarm_pm91 and instead adds code to the windfarm
core to automagically expose attributes for sensor & controls.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Merge /pub/scm/linux/kernel/git/davem/sparc-2.6

[PATCH] powerpc: Fix sound driver use of i2c

The PowerMac sound drivers used to rely on a "bug" of the i2c-keywest
driver that implemented I2C_SMBUS_BLOCK_DATA incorrectly, that is it did
what I2C_SMBUS_I2C_BLOCK_DATA should have done. The new i2c-powermac
driver that replaces keywest has this bug fixed, thus the sound drivers
must be fixed too.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Merge git://git./linux/kernel/git/paulus/powerpc-merge

[SPARC64]: Update defconfig.

Do not enable CONFIG_LOCALVERSION_AUTO by default.
When doing kernel development it just leaves a ton
of crap around.

Signed-off-by: David S. Miller <davem@davemloft.net>

[SPARC]: Wire up sys_unshare().

Also, the Solaris syscall table is sized differrently,
and does not go beyond entry 255, so trim off the excess
entries.

Signed-off-by: David S. Miller <davem@davemloft.net>

[PATCH] umount_tree() decrements mount count on wrong dentry

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] nfsroot port= parameter fix [backport of 2.4 fix]

Direct backport of 2.4 fix that didn't get propagated to 2.6; original
comment follows:
<quote>
   When I specify the NFS port for nfsroot (e.g.,
   nfsroot=<dir>,port=2049), the
   kernel uses the wrong port. In my case it tries to use 264 (0x108)
   instead
   of 2049 (0x801).

   This patch adds the missing htons().

   Eric
</quote>

Patch got applied in 2.4.21-pre6.  Author: Eric Lammerts (<eric@lammerts.org>,
AFAICS).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] arch/x86_64/pci/mmconfig.c NULL noise removal

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] net/ipv6/mcast.c NULL noise removal

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] __user annotations of video_spu_palette

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] amd64 time.c __iomem annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] bogus extern in low_i2c.c

extern in function definition is an odd thing..

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] eeh_driver NULL noise removal

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] sg gfp_t annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] scsi_transport_iscsi gfp_t annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] cmm NULL noise removal, __user annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] drivers/edac/i82875p_edac.c __user annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] fix __user annotations in drivers/base/memory.c

sysfs store doesn't deal with userland pointers

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] drivers/char/watchdog/sbc_epx_c3.c __user annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] dvb NULL noise removal

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] kernel/sys.c NULL noise removal

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] timer.c NULL noise removal

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] ipv4 NULL noise removal

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] fix __user annotations in fs/select.c

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] missing include in ser_a2232

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] fallout from ptrace consolidation patch: cris/arch-v10

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] drivers/scsi/mac53c94.c __iomem annotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] ppc: last_task_.... is defined only on non-SMP

... so it should be exported only on non-SMP.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] restore power-off on sparc32

Damn you, Eric

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] fix breakage in ocp.c

it's ocp_device_...., not ocp_driver_....

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] missing includes in drivers/net/mv643xx_eth.c

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] drive_info removal outside of arch/i386

drive_info is used only by hd.c and that happens under #ifdef __i386__.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] bogus asm/delay.h includes

asm/delay.h is non-portable; linux/delay.h should be used in generic code.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

[PATCH] remove bogus asm/bug.h includes.

A bunch of asm/bug.h includes are both not needed (since it will get
pulled anyway) and bogus (since they are done too early).  Removed.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

Merge /pub/scm/linux/kernel/git/gregkh/driver-2.6

Merge /pub/scm/linux/kernel/git/gregkh/i2c-2.6

Merge git://oss.sgi.com:8090/oss/git/rc-fixes-xfs-2.6

[PATCH] m68knommu: use tty_schedule_flip() in 68328serial.c

Use the new tty_schedule_flip() instead of the original direct
schedule_work of the flip buffer.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] m68knommu: use tty_schedule_flip() in 68360serial.c

Use the new tty_schedule_flip() instead of the original direct
schedule_work of the flip buffer.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] m68knommu: hardirq.h needs definition of NR_IRQS

Need to include the local asm/irq.h to get the NR_IRQS definition.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] m68knommu: need pm_power_off in m68knommu

Need place holders for the power management power off and idle functions.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] m68knommu: compile fixes for mcfserial.c

Re-organize the default CONSOLE baud rate define setting so that
it is only set once.

Use the new tty_schedule_flip() instead of the original direct
schedule_work of the flip buffer.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] unshare system call -v5: system call registration for i386

Registers system call for the i386 architecture.

Signed-off-by: Janak Desai <janak@us.ibm.com>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Andi Kleen <ak@muc.de>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] unshare system call -v5: unshare files

If the file descriptor structure is being shared, allocate a new one and copy
information from the current, shared, structure.

Signed-off-by: Janak Desai <janak@us.ibm.com>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Andi Kleen <ak@muc.de>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] unshare system call -v5: unshare vm

If vm structure is being shared, allocate a new one and copy information from
the current, shared, structure.

Signed-off-by: Janak Desai <janak@us.ibm.com>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Andi Kleen <ak@muc.de>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] unshare system call -v5: unshare namespace

If the namespace structure is being shared, allocate a new one and copy
information from the current, shared, structure.

Signed-off-by: Janak Desai <janak@us.ibm.com>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Andi Kleen <ak@muc.de>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] unshare system call -v5: unshare filesystem info

If filesystem structure is being shared, allocate a new one and copy
information from the current, shared, structure.

Signed-off-by: Janak Desai <janak@us.ibm.com>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Andi Kleen <ak@muc.de>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] unshare system call -v5: system call handler function

sys_unshare system call handler function accepts the same flags as clone
system call, checks constraints on each of the flags and invokes corresponding
unshare functions to disassociate respective process context if it was being
shared with another task.

Here is the link to a program for testing unshare system call.

http://prdownloads.sourceforge.net/audit/unshare_test.c?download

Please note that because of a problem in rmdir associated with bind mounts and
clone with CLONE_NEWNS, the test fails while trying to remove temporary test
directory.  You can remove that temporary directory by doing rmdir, twice,
from the command line.  The first will fail with EBUSY, but the second will
succeed.  I have reported the problem to Ram Pai and Al Viro with a small
program which reproduces the problem.  Al told us yesterday that he will be
looking at the problem soon.  I have tried multiple rmdirs from the
unshare_test program itself, but for some reason that is not working.  Doing
two rmdirs from command line does seem to remove the directory.

Signed-off-by: Janak Desai <janak@us.ibm.com>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Cc: Andi Kleen <ak@muc.de>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] unshare system call -v5: Documentation file

Documents the new feature, why it is needed, it's cost, design,
implementation, and test plan.

Signed-off-by: Janak Desai <janak@us.ibm.com>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Andi Kleen <ak@muc.de>
Cc: Paul Mackerras <paulus@samba.org>
Acked-by: Michael Kerrisk <mtk-manpages@gmx.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] Fix spinlock debugging delays to not time out too early

The spinlock-debug wait-loop was using loops_per_jiffy to detect too long
spinlock waits - but on fast CPUs this led to a way too fast timeout and false
messages.

The fix is to include a __delay(1) call in the loop, to correctly approximate
the intended delay timeout of 1 second.  The code assumes that every
architecture implements __delay(1) to last around 1/(loops_per_jiffy*HZ)
seconds.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] mm: compound release fix

Compound pages on SMP systems can now often be freed from pagetables via
the release_pages path.  This uses put_page_testzero which does not handle
compound pages at all.  Releasing constituent pages from process mappings
decrements their count to a large negative number and leaks the reference
at the head page - net result is a memory leak.

The problem was hidden because the debug check in put_page_testzero itself
actually did take compound pages into consideration.

Fix the bug and the debug check.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] selinux: require AUDIT

Make SELinux depend on AUDIT as it requires the basic audit support to log
permission denials at all.  Note that AUDITSYSCALL remains optional for
SELinux, although it can be useful in providing further information upon
denials.

Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] Fix build failure in recent pm_prepare_* changes.

Fix compilation problem in PM headers.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] More informative message on umount failure

We had a user trigger this message on a box that had a lot of different
mounts, all with different options.  It might help narrow down wtf happened
if we print out which device failed.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] sys_hpux: fix strlen_user() race

Userspace can alter the string after the kernel has run strlen_user().

Also: the strlen_user() return value includes the \0, so fix that.

Also: handle EFAULT from strlen_user().

It's unlikely anyone is using this code.  Very, very unlikely.  If I
remember correctly, CONFIG_HPUX turns this code on, but one would actually
need CONFIG_BINFMT_SOM to load a binary that could cause a problem, and
BINFMT_SOM has had an #error in it for quite some time.

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

[PATCH] inotify: fix one-shot support

Fix one-shot support in inotify.  We currently drop the IN_ONESHOT flag
during watch addition.  Fix is to not do that.

Signed-off-by: Robert Love <rml@novell.com>
Cc: John McCutchan <ttb@tentacle.dhs.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] module: strlen_user() race fix

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

[PATCH] uml: remove a dead file

A previous patch removed a file from the build without removing it from the
tree.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] uml: initialize process FP registers properly

We weren't making sure that we initialized the FP registers of new processes
to sane values.

This patch also moves some defines in the affected area closer to where they
are used.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] uml: block SIGWINCH in ptrace tester child

The process that UML uses to probe the host's ptrace capabilities can (rarely)
receive a SIGWINCH, confusing the parent.  This fixes that by blocking
SIGWINCH.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] uml: balance list_add and list_del in the network driver

The network driver added an interface to the "opened" list when it was
configured, not when it was brought up, and removed it when it was taken down.
 A sequence of ifconfig up, ifconfig down, ...  caused it to be removed
multiple times from the list without being added in between, resulting in a
crash.  This patch moves the add to when the interface is brought up.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] uml: close TUN/TAP file descriptors

When UML opens a TUN/TAP device, the file descriptor could be copied into
later, long-lived threads, holding the device open even after the interface is
taken down, preventing it from being brought up again.  This patch makes these
descriptors close-on-exec so that they disappear from helper processes, and
adds CLONE_FILES to a UML helper thread so that the descriptors are closed in
the thread when they are closed elsewhere in UML.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] uml: add debug switch for skas mode

It doesn't do anything but emit a warning, but there's a user population
that's used to adding 'debug' to the UML command line in order to gdb it.
With skas0 mode, that's not necessary, but these users need some indication
that 'debug' doesn't do what they want.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] Fix do_path_lookup() to add the check for error in link_path_walk()

Fix do_path_lookup() to avoid accessing invalid dentry or inode when the
link_path_walk() has failed.  This should fix Bugme #5897.

Signed-off-by: Suzuki K P <suzuki@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] __cmpxchg() must really always be inlined on alpha

With the latest 2.6.15 kernel builds for alpha on Debian, we ran into a
problem with undefined references to __cmpxchg_called_with_bad_pointer() in
a couple of kernel modules (xfs.ko and drm.ko; see
http://bugs.debian.org/347556).

It looks like people have been trying to out-clever each other wrt the
definition of "inline" on this architecture :), with the result that
__cmpxchg(), which must be inlined so the compiler can see its argument is
const, is not guaranteed to be inlined.  Indeed, it was not being inlined
when building with -Os.

The attached patch fixes the issue by adding an
__attribute__((always_inline)) explicitly to the definition of __cmpxchg()
instead of relying on redefines of "inline" elsewhere to make this happen.

Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] ide: cast arguments to pr_debug() properly

This does not show up unless you #define DEBUG in the file, which most
people wouldn't do.  On PPC405, at least, "sector_t" is unsigned long,
which doesn't match %llx/%llu.  Since sector# may well be >32 bits, promote
the value to match the format.

Signed-off-by: Michael Richardson <mcr@xelerance.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] knfsd: fix nfs4_open lock leak

I just noticed that my patch "don't create on open that fails due to
ERR_GRACE" (recently commited as fb553c0f17444e090db951b96df4d2d71b4f4b6b)
had an obvious problem that causes a deadlock on reboot recovery.  Sending
in this now since it seems like a clear 2.6.16 candidate.--b.

We're returning with a lock held in some error cases.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] hugetlbpage: return VM_FAULT_OOM on oom

Remove wrong and misleading comments.

Return VM_FAULT_OOM if the hugetlbpage fault handler cannot allocate a
page.  do_no_page will end up doing do_exit(SIGKILL).

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] Hugepages need clear_user_highpage() not clear_highpage()

When hugepages are newly allocated to a file in mm/hugetlb.c, we clear them
with a call to clear_highpage() on each of the subpages.  We should be
using clear_user_highpage(): on powerpc, at least, clear_highpage() doesn't
correctly mark the page as icache dirty so if the page is executed shortly
after it's possible to get strange results.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Acked-by: William Lee Irwin III <wli@holomorphy.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] x86_64: Fix the node cpumask of a cpu going down

Currently, x86_64 and ia64 arches do not clear the corresponding bits in
the node's cpumask when a cpu goes down or cpu bring up is cancelled.  This
is buggy since there are pieces of common code where the cpumask is checked
in the cpu down code path to decide on things (like in the slab down path).
 PPC does the right thing, but x86_64 and ia64 don't (This was the reason
Sonny hit upon a slab bug during cpu offline on ppc and could not reproduce
on other arches).  This patch fixes it for x86_64.  I won't attempt ia64 as
I cannot test it.

Credit for spotting this should go to Alok.

(akpm: this was applied, then reverted.  But it's OK now because we now use
for_each_cpu() in the right places).

Signed-off-by: Alok N Kataria <alokk@calsoftinc.com>
Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] swsusp: kill unneeded/unbalanced bio_get

- Remove unneeded bio_get() which would cause a bio leak

- Writing doesn't dirty pages.  Reading dirties pages.

- We should dirty the pages after the IO completion, not before

(Busy-waiting for disk I/O completion isn't very polite.)

Signed-off-by: Pavel Machek <pavel@suse.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

[PATCH] drivers/base/bus.c warning fixes

drivers/base/bus.c:166: warning: `driver_attr_unbind' defined but not used
drivers/base/bus.c:194: warning: `driver_attr_bind' defined but not used

Looks like these two attributes and supporting functions want to be
#ifdef HOTPLUG'd

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Merge /pub/scm/linux/kernel/git/mchehab/v4l-dvb

[PATCH] cciss: softirq handler needs to save interrupt flags

The softirq rq completion handler needs to save/restore interrupt flags
appropriately.

Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Merge branch 'upstream' of git://ftp.linux-mips.org/upstream-linus

[PATCH] Fix bad apic fix on i386

Fix wrong '!' in bad apic fix

I forgot to remove the ! when moving the code from x86-64 to i386 x86-64
tested !disable_apic, but of course for cpu_has_apic it shouldn't be
negated.

Credit goes to Jan Beulich for spotting it with eagle eyes.

Cc: Jan Beulich <jbeulich@novell.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

Merge branch 'upstream-fixes' of /linux/kernel/git/jgarzik/netdev-2.6

Merge git://git./linux/kernel/git/sam/kbuild-bugfix

[MIPS] Clear ST0_RE on bootup.

The reset state is undefined and some firmware doesn't clear this bit
possibly resulting in crashes on entry into userland.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

[MIPS] TX49x7: Fix reporting of the CPU name and PCI clock

I've noticed that PCI clock was incorrectly reported as 66 MHz while being
mere 33 MHz on RBTX4937 board -- this was due to the different encoding of
the PCI divisor field in CCFG register between TX4927 and TX4937 chips...

Also, RBTX49x7 was printed out as a CPU name (e.g., "CPU is RBTX4937");
and some debug printk() were duplicating each other...

Signed-off-by: Konstantin Baydarov <kbaidarov@ru.mvista.com>
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

[MIPS] TX49 MFC0 bug workaround

If mfc0 $12 follows store and the mfc0 is last instruction of a
page and fetching the next instruction causes TLB miss, the result
of the mfc0 might wrongly contain EXL bit.

ERT-TX49H2-027, ERT-TX49H3-012, ERT-TX49HL3-006, ERT-TX49H4-008

Workaround: mask EXL bit of the result or place a nop before mfc0.  It
doesn't harm to always clear those bits, so we change the code to do so.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

[MIPS] Fix linker script to work for non-4K page size.

Very much to my surprise Fuxin Zhang reports this is all it takes to get
the kernel to work for page sizes larger than 4kB.  This also paves the
way for support for the R6000 and R8000 which don't support 4kB page size.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

[MIPS] Oprofile: Support for 34K UP kernels.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

[MIPS] Fix dump_tlb.c warning and cleanup.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

[MIPS] Fix minor sparse warnings

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

[MIPS] MIPS R2 optimized endianess swapping.

From Franck Bui-Huu <vagabon.xyz@gmail.com> with modifications by me.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

[MIPS] Remove buggy inline version of memscan.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

[MIPS] Sparse: Add some __user tags to signal functions.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

[MIPS] Shrink Qemu configuration to the bare minimum that is need and tested.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

[MIPS] Support /proc/kcore for MIPS

I'm pretty sure that the CKSEG0 bits are wrong, but I did need to
cover that region - because the SB-1 kernel links at 0xffffffff80100000
or so, disassembly and printing static variables don't work unless the
debugger can read that region.

Signed-off-by: Daniel Jacobowitz <dan@codesourcery.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

[MIPS] IP22: Fix serial console detection

From: Kaj-Michael Lang <milang@tal.org>

In ip22-setup.c the checks for serial/graphics console logic does
not check if ARCS console=g but the machine is using serial console, as
it does if no keyboard is attached.

This patch adds a check if ConsoleOut is serial. There might also be
support for other graphics than Newport soon...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

[MIPS] ieee754[sd]p_neg workaround

It looks glibc's pow() assumes an unary '-' operation for any number
(including NaNs) always inverts its sign bit (though IEEE754 does not
specify the sign bit for NaNs).  This patch make the kernel math-emu
emulates real MIPS neg.[ds] instruction.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

[MIPS] Remove wrong __user tags.

This fixes sparse warnings 'dereference of noderef expression'.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>