14 years agoMerge branch 'for-linus' of git://
Linus Torvalds [Thu, 17 Jan 2008 23:50:19 +0000 (15:50 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

* 'for-linus' of git://
  Input: ALPS - fix sync loss on Acer Aspire 5720ZG
  Input: psmouse - fix input_dev leak in lifebook driver
  Input: psmouse - fix potential memory leak in psmouse_connect()
  Input: usbtouchscreen - fix buffer overflow, make more egalax work
  Input: mousedev - handle mice that use absolute coordinates

14 years agoMerge git://
Linus Torvalds [Thu, 17 Jan 2008 23:49:59 +0000 (15:49 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://
  [NIU]: Fix 1G PHY link state handling.
  [NET]: Fix TX timeout regression in Intel drivers.

14 years agoMerge git://
Linus Torvalds [Thu, 17 Jan 2008 23:49:49 +0000 (15:49 -0800)]
Merge git://git./linux/kernel/git/davem/sparc-2.6

* git://
  [SPARC64]: Fix hypervisor TLB operation error reporting.

14 years agofix wrong sized spinlock flags argument
Daniel Walker [Thu, 17 Jan 2008 20:52:05 +0000 (12:52 -0800)]
fix wrong sized spinlock flags argument

Correct wrong sized spinlock flags, form int to unsigned long.

Signed-off-by: Daniel Walker <>
Signed-off-by: Linus Torvalds <>
14 years agoFix unbalanced helper_lock in kernel/kmod.c
Nigel Cunningham [Thu, 17 Jan 2008 23:21:21 +0000 (15:21 -0800)]
Fix unbalanced helper_lock in kernel/kmod.c

call_usermodehelper_exec() has an exit path that can leave the
helper_lock() call at the top of the routine unbalanced.  The attached
patch fixes this issue.

Signed-off-by: Nigel Cunningham <>
Cc: <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agoRevert "local_t Documentation update"
Li Zefan [Thu, 17 Jan 2008 23:21:20 +0000 (15:21 -0800)]
Revert "local_t Documentation update"

This reverts commit e1265205c0ee3919c3f2c750662630154c8faab2.

It's a duplicate commit of commit 74beb9db77930be476b267ec8518a642f39a04bf,
resulting in a duplicate section.

Signed-off-by: Li Zefan <>
Acked-by: Mathieu Desnoyers <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agofix radeonfb regression with Xpress 200m 5955
Alex [Thu, 17 Jan 2008 23:21:18 +0000 (15:21 -0800)]
fix radeonfb regression with Xpress 200m 5955


Framebuffer is ok only with default parameters only (it is 1280x800-8@60).  If
parameters are video=radeonfb:1280x800-32@60 then xres, yres and xres_virtual
are ok but yres_virtual is 1024.  It can be corrected by fbset utility so I
think it can be corrected in the driver code also.

Steps to reproduce: video=radeonfb:1280x800-32@60 or

Add 1280x800 mode into modedb

Cc: "Rafael J. Wysocki" <>
Cc: "Antonino A. Daplas" <>
Cc: Geert Uytterhoeven <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years ago#ifdef very expensive debug check in page fault path
Carsten Otte [Thu, 17 Jan 2008 23:21:17 +0000 (15:21 -0800)]
#ifdef very expensive debug check in page fault path

This patch puts #ifdef CONFIG_DEBUG_VM around a check in vm_normal_page
that verifies that a pfn is valid.  This patch increases performance of the
page fault microbenchmark in lmbench by 13% and overall dbench performance
by 7% on s390x.  pfn_valid() is an expensive operation on s390 that needs a
high double digit amount of CPU cycles.  Nick Piggin suggested that
pfn_valid() involves an array lookup on systems with sparsemem, and
therefore is an expensive operation there too.

The check looks like a clear debug thing to me, it should never trigger on
regular kernels.  And if a pte is created for an invalid pfn, we'll find
out once the memory gets accessed later on anyway.  Please consider
inclusion of this patch into mm.

Signed-off-by: Carsten Otte <>
Acked-by: Nick Piggin <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agoalpha: fix conversion from denormal float to double
Ivan Kokshaysky [Thu, 17 Jan 2008 23:21:13 +0000 (15:21 -0800)]
alpha: fix conversion from denormal float to double

The trap handler does properly update the fraction,
but not the exponent...

Thanks to Paolo Bonzini for the bug report and the testcase.

Signed-off-by: Ivan Kokshaysky <>
Cc: Paolo Bonzini <>
Cc: Richard Henderson <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agojbd: do not try lock_acquire after handle made invalid
Jonas Bonn [Thu, 17 Jan 2008 23:21:13 +0000 (15:21 -0800)]
jbd: do not try lock_acquire after handle made invalid

This likely fixes the oops in __lock_acquire reported as:

In these reported oopses, start_this_handle is returning -EROFS.

Signed-off-by: Jonas Bonn <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agomm: fix section mismatch warning in page_alloc.c
Sam Ravnborg [Thu, 17 Jan 2008 23:21:12 +0000 (15:21 -0800)]
mm: fix section mismatch warning in page_alloc.c

following warning:
WARNING: mm/built-in.o(.text+0x6864): Section mismatch: reference to .init.text: (between 'process_zones' and 'pageset_cpuup_callback')

The culprit was zone_batchsize() which were annotated __devinit but used
from process_zones() which is annotated __cpuinit.  zone_batchsize() are
used from another function annotated __meminit so the only valid option is
to drop the annotation of zone_batchsize() so we know it is always valid to
use it.

Signed-off-by: Sam Ravnborg <>
Acked-by: Ingo Molnar <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agoCRIS v10: ix kernel oops on boot and use common defines
Jesper Nilsson [Thu, 17 Jan 2008 23:21:11 +0000 (15:21 -0800)]
CRIS v10: ix kernel oops on boot and use common defines

- Move alignment to page size of init data outside ifdef for BLK_DEV_INITRD.
  The reservation up to page size of memory after init data was previously
  not done if BLK_DEV_INITRD was undefined.
  This caused a kernel oops when init memory pages were freed after startup,
  data placed in the same page as the last init memory would also be freed
  and reused, with disastrous results.

- Use macros for initcalls and .text sections.

- Replace hardcoded page size constant with PAGE_SIZE define.

- Change include/asm-cris/page.h to use the _AC macro to instead
  of testing __ASSEMBLY__.

Signed-off-by: Jesper Nilsson <>
Cc: Sam Ravnborg <>
Cc: Mikael Starvik <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agopnpacpi: print resource shortage message only once (more)
Len Brown [Thu, 17 Jan 2008 23:21:10 +0000 (15:21 -0800)]
pnpacpi: print resource shortage message only once (more)

Wups, previous patch was ineffective in 2 cases.

Signed-off-by: Len Brown <>
Reported-by: "Hartkopp, Oliver (K-EFE/E)" <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agohfs: fix coverity-found null deref
Eric Sandeen [Thu, 17 Jan 2008 23:21:09 +0000 (15:21 -0800)]
hfs: fix coverity-found null deref

Fix potential null deref introduced by commit

Signed-off-by: Eric Sandeen <>
Cc: Roman Zippel <>
Reported-by: Adrian Bunk <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agocpufreq: Initialise default governor before use
Johannes Weiner [Thu, 17 Jan 2008 23:21:08 +0000 (15:21 -0800)]
cpufreq: Initialise default governor before use

When the cpufreq driver starts up at boot time, it calls into the default
governor which might not be initialised yet.  This hurts when the
governor's worker function relies on memory that is not yet set up by its
init function.

This migrates all governors from module_init() to fs_initcall() when being
the default, as was already done in cpufreq_performance when it was the
only possible choice.  The performance governor is always initialized early
because it might be used as fallback even when not being the default.

Fixes at least one actual oops where ondemand is the default governor and
cpufreq_governor_dbs() uses the uninitialised kondemand_wq work-queue
during boot-time.

Signed-off-by: Johannes Weiner <>
Cc: Dave Jones <>
Cc: "Rafael J. Wysocki" <>
Cc: Venkatesh Pallipadi <>
Acked-by: Ingo Molnar <>
Cc: Thomas Gleixner <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agoInput: ALPS - fix sync loss on Acer Aspire 5720ZG
Dmitry Torokhov [Thu, 17 Jan 2008 17:01:58 +0000 (12:01 -0500)]
Input: ALPS - fix sync loss on Acer Aspire 5720ZG

The recently added support for Dell Volstro 1400 was causing protocol
synchronization errors on Acer Aspire 5720ZG, fix it.

Signed-off-by: Dmitry Torokhov <>
14 years agoInput: psmouse - fix input_dev leak in lifebook driver
Andres Salomon [Thu, 17 Jan 2008 17:01:51 +0000 (12:01 -0500)]
Input: psmouse - fix input_dev leak in lifebook driver

The lifebook driver may register a second input device, but it never
unregisters it.  This fixes that.

Signed-off-by: Andres Salomon <>
Signed-off-by: Dmitry Torokhov <>
14 years agoInput: psmouse - fix potential memory leak in psmouse_connect()
Andres Salomon [Thu, 17 Jan 2008 17:01:30 +0000 (12:01 -0500)]
Input: psmouse - fix potential memory leak in psmouse_connect()

If we successfully call input_register_device() in psmouse_connect()
but sysfs_create_group() fails, we'll enter the error path without
ever having called input_unregister_device() potentially leaking

Signed-off-by: Andres Salomon <>
Signed-off-by: Dmitry Torokhov <>
14 years agoInput: usbtouchscreen - fix buffer overflow, make more egalax work
Daniel Ritz [Thu, 17 Jan 2008 17:01:18 +0000 (12:01 -0500)]
Input: usbtouchscreen - fix buffer overflow, make more egalax work

Fix a buffer overflow in mutli-packet handling code.  The overflow can
only happen with eGalax devices and is even there very unlikely (only
non-report packet are affected any only when truncated after the first

Also changes the mutli-packet handling code not to drop unknown packets,
but rather just drop one byte.  This allows synchronizing on report packets
in the data stream.  It's required for some egalax devices to work at all.

Also remove the pointless 'flags' member of the device struct and set the
version number to 0.6, plus some minor cleanups.

[ coding-style fixes]

Signed-off-by: Daniel Ritz <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Dmitry Torokhov <>
14 years agoInput: mousedev - handle mice that use absolute coordinates
Micah Parrish [Thu, 17 Jan 2008 17:01:04 +0000 (12:01 -0500)]
Input: mousedev - handle mice that use absolute coordinates

Devices like the HP Integrated Remote Console Virtual Mouse, which are
standard equipment on all Proliant and Integrity servers, produce
absolute coordinates instead of relative coordinates.  This is done to
synchronize the position of the mouse cursor on the client desktop
with the mouse cursor position on the server.  Mousedev is not
designed to pass those absolute events directly to X, but it can
translate them into relative movements.  It currently does this for
tablet like devices and touchpads.  This patch merely tells it to also
include a device with ABS_X, ABS_Y, and mouse buttons in its list of
devices to process input for.

This patch enables the mouse pointer to move when using the remote

Signed-off-by: Micah Parrish <>
Signed-off-by: Dmitry Torokhov <>
14 years ago[SPARC64]: Fix hypervisor TLB operation error reporting.
David S. Miller [Thu, 17 Jan 2008 09:32:09 +0000 (01:32 -0800)]
[SPARC64]: Fix hypervisor TLB operation error reporting.

1) Trap level wasn't being passed down properly, we need to
   move it from %l4 into the correct outgoing arg register.

2) Although the TPC often provides the most direct clue, we
   have the caller PC so we should provide that as well.

Signed-off-by: David S. Miller <>
14 years ago[NIU]: Fix 1G PHY link state handling.
David S. Miller [Wed, 16 Jan 2008 06:50:08 +0000 (22:50 -0800)]
[NIU]: Fix 1G PHY link state handling.

The code in link_status_1g() computes the active speed
and duplex but does not update the link config state
with those values.

As a result the link speed is not reported correctly
and the XIF is not reprogrammed properly on link up

Signed-off-by: David S. Miller <>
14 years ago[NET]: Fix TX timeout regression in Intel drivers.
David S. Miller [Wed, 16 Jan 2008 06:43:24 +0000 (22:43 -0800)]
[NET]: Fix TX timeout regression in Intel drivers.

This fixes a regression added by changeset
53e52c729cc169db82a6105fac7a166e10c2ec36 ("[NET]: Make ->poll()
breakout consistent in Intel ethernet drivers.")

As pointed out by Jesse Brandeburg, for three of the drivers edited
above there is breakout logic in the *_clean_tx_irq() code to prevent
running TX reclaim forever.  If this occurs, we have to elide NAPI
poll completion or else those TX events will never be serviced.

Signed-off-by: David S. Miller <>
Acked-by: Jesse Brandeburg <>
14 years agoMerge branch 'v2.6.24-rc7-lockdep' of git://
Linus Torvalds [Wed, 16 Jan 2008 17:55:49 +0000 (09:55 -0800)]
Merge branch 'v2.6.24-rc7-lockdep' of git://git./linux/kernel/git/peterz/linux-2.6-lockdep

* 'v2.6.24-rc7-lockdep' of git://
  lockdep: more hardirq annotations for notify_die()
  lockdep: fix workqueue creation API lockdep interaction
  lockdep: fix internal double unlock during self-test

14 years agosysfs: fix bugs in sysfs_rename/move_dir()
Tejun Heo [Wed, 16 Jan 2008 03:10:53 +0000 (12:10 +0900)]
sysfs: fix bugs in sysfs_rename/move_dir()

sysfs_rename/move_dir() have the following bugs.

 - On dentry lookup failure, kfree() is called on ERR_PTR() value.
 - sysfs_move_dir() has an extra dput() on success path.

Fix them.

Signed-off-by: Tejun Heo <>
Signed-off-by: Linus Torvalds <>
14 years agosysfs: make sysfs_lookup() return ERR_PTR(-ENOENT) on failed lookup
Tejun Heo [Wed, 16 Jan 2008 03:06:14 +0000 (12:06 +0900)]
sysfs: make sysfs_lookup() return ERR_PTR(-ENOENT) on failed lookup

sysfs tries to keep dcache a strict subset of sysfs_dirent tree by
shooting down dentries when a node is removed, that is, no negative
dentry for sysfs.  However, the lookup function returned NULL and thus
created negative dentries when the target node didn't exist.

Make sysfs_lookup() return ERR_PTR(-ENOENT) on lookup failure.  This
fixes the NULL dereference bug in sysfs_get_dentry() discovered by
bluetooth rfcomm device moving around.

Signed-off-by: Tejun Heo <>
Signed-off-by: Linus Torvalds <>
14 years agolockdep: more hardirq annotations for notify_die()
Peter Zijlstra [Wed, 16 Jan 2008 08:51:59 +0000 (09:51 +0100)]
lockdep: more hardirq annotations for notify_die()
On Sat, 2007-12-29 at 18:06 +0100, Marcin Slusarz wrote:
> Hi
> Today I've got this (while i was upgrading my gentoo box):
> WARNING: at kernel/lockdep.c:2658 check_flags()
> Pid: 21680, comm: conftest Not tainted 2.6.24-rc6 #63
> Call Trace:
>  [<ffffffff80253457>] check_flags+0x1c7/0x1d0
>  [<ffffffff80257217>] lock_acquire+0x57/0xc0
>  [<ffffffff8024d5c0>] __atomic_notifier_call_chain+0x60/0xd0
>  [<ffffffff8024d641>] atomic_notifier_call_chain+0x11/0x20
>  [<ffffffff8024d67e>] notify_die+0x2e/0x30
>  [<ffffffff8020da0a>] do_divide_error+0x5a/0xa0
>  [<ffffffff80522bdd>] trace_hardirqs_on_thunk+0x35/0x3a
>  [<ffffffff80255b89>] trace_hardirqs_on+0xd9/0x180
>  [<ffffffff80522bdd>] trace_hardirqs_on_thunk+0x35/0x3a
>  [<ffffffff80523c2d>] error_exit+0x0/0xa9
> possible reason: unannotated irqs-off.
> irq event stamp: 4693
> hardirqs last  enabled at (4693): [<ffffffff80522bdd>] trace_hardirqs_on_thunk+0x35/0x3a
> hardirqs last disabled at (4692): [<ffffffff80522c17>] trace_hardirqs_off_thunk+0x35/0x37
> softirqs last  enabled at (3546): [<ffffffff80238343>] __do_softirq+0xb3/0xd0
> softirqs last disabled at (3521): [<ffffffff8020c97c>] call_softirq+0x1c/0x30

more early fixups for notify_die()..

Signed-off-by: Peter Zijlstra <>
Signed-off-by: Ingo Molnar <>
14 years agolockdep: fix workqueue creation API lockdep interaction
Johannes Berg [Wed, 16 Jan 2008 08:51:58 +0000 (09:51 +0100)]
lockdep: fix workqueue creation API lockdep interaction
Dave Young reported warnings from lockdep that the workqueue API
can sometimes try to register lockdep classes with the same key
but different names. This is not permitted in lockdep.

Unfortunately, I was unaware of that restriction when I wrote
the code to debug workqueue problems with lockdep and used the
workqueue name as the lockdep class name. This can obviously
lead to the problem if the workqueue name is dynamic.

This patch solves the problem by always using a constant name
for the workqueue's lockdep class, namely either the constant
name that was passed in or a string consisting of the variable

Signed-off-by: Johannes Berg <>
Signed-off-by: Ingo Molnar <>
Signed-off-by: Peter Zijlstra <>
14 years agolockdep: fix internal double unlock during self-test
Nick Piggin [Wed, 16 Jan 2008 08:51:58 +0000 (09:51 +0100)]
lockdep: fix internal double unlock during self-test
Lockdep, during self-test (when it was simulating double unlocks) was
sometimes unconditionally unlocking a spinlock when it had not been
locked. This won't work for ticket locks.

Signed-off-by: Nick Piggin <>
Signed-off-by: Ingo Molnar <>
Signed-off-by: Peter Zijlstra <>
14 years agoLinux 2.6.24-rc8 v2.6.24-rc8
Linus Torvalds [Wed, 16 Jan 2008 04:22:48 +0000 (20:22 -0800)]
Linux 2.6.24-rc8

14 years ago[IA64] Fix unaligned handler for floating point instructions with base update
Luck, Tony [Mon, 14 Jan 2008 17:59:24 +0000 (09:59 -0800)]
[IA64] Fix unaligned handler for floating point instructions with base update

The compiler team did the hard work for this distilling a problem in
large fortran application which showed up when applied to a 290MB input
data set down to this instruction:

ldfd f34=[r17],-8

Which they noticed incremented r17 by 0x10 rather than decrementing it
by 8 when the value in r17 caused an unaligned data fault.  I tracked
it down to some bad instruction decoding in unaligned.c. The code
assumes that the 'x' bit can determine whether the instruction is
an "ldf" or "ldfp" ... which it is for opcode=6 (see table 4-29 on
page 3:302 of the SDM).  But for opcode=7 the 'x' bit is irrelevent,
all variants are "ldf" instructions (see table 4-36 on page 3:306).

Note also that interpreting the instruction as "ldfp" means that the
"paired" floating point register (f35 in the example here) will also
be corrupted.

Signed-off-by: Tony Luck <>
14 years agoMerge branch 'upstream-linus' of git://
Linus Torvalds [Tue, 15 Jan 2008 21:49:09 +0000 (13:49 -0800)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://
  libata: correct handling of TSS DVD
  [libata] core checkpatch fix
  [libata] pata_bf54x: checkpatch fixes
  libata fixes for sparse-found problems

14 years agolibata: correct handling of TSS DVD
Alan Cox [Mon, 14 Jan 2008 09:06:40 +0000 (01:06 -0800)]
libata: correct handling of TSS DVD

Devices that misreport the validity bit for word 93 look like SATA.  If
they are on the blacklist then we must not test for SATA but assume 40 wire
in the 40 wire case (The TSSCorp reports 80 wire on SATA it seems!)

Signed-off-by: Alan Cox <>
Cc: Tejun Heo <>
Cc: Jeff Garzik <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Jeff Garzik <>
14 years ago[libata] core checkpatch fix
Andrew Morton [Thu, 10 Jan 2008 22:33:09 +0000 (14:33 -0800)]
[libata] core checkpatch fix

Cc: Alan Cox <>
Cc: Jeff Garzik <>
Cc: Tejun Heo <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Jeff Garzik <>
14 years ago[libata] pata_bf54x: checkpatch fixes
Andrew Morton [Thu, 10 Jan 2008 22:33:08 +0000 (14:33 -0800)]
[libata] pata_bf54x: checkpatch fixes

WARNING: line over 80 characters
#36: FILE: drivers/ata/pata_bf54x.c:1512:
+ while (bfin_port_info[board_idx].udma_mask>0 && udma_fsclk[udma_mode] > fsclk) {

ERROR: need spaces around that '>' (ctx:VxV)
#36: FILE: drivers/ata/pata_bf54x.c:1512:
+ while (bfin_port_info[board_idx].udma_mask>0 && udma_fsclk[udma_mode] > fsclk) {

total: 1 errors, 1 warnings, 19 lines checked

Your patch has style problems, please review.  If any of these errors
are false positives report them to the maintainer, see

Please run checkpatch prior to sending patches

Cc: Jeff Garzik <>
Cc: Sonic Zhang <>
Cc: Tejun Heo <>
Cc: sonic zhang <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Jeff Garzik <>
14 years agolibata fixes for sparse-found problems
Al Viro [Sat, 12 Jan 2008 14:16:14 +0000 (14:16 +0000)]
libata fixes for sparse-found problems

In pata_legacy and pata_winbond we've got bugs - cpu_to_le16() instead
of cpu_to_le32().  Fortunately, both affected suckers are VLB, thus
l-e-only, so we might get away with that unless we hit it with slop == 3
(hadn't checked if playing with badly aligned sg could trigger that).
Still buggy...  Moreover, pata_legacy, pata_winbond and pata_qdi forgot to
initialize pad on the write side of 32bit case in their ->data_xfer().
Hopefully the hardware does't care, but still, sending uninitialized
data to it...

Signed-off-by: Al Viro <>
Signed-off-by: Jeff Garzik <>
14 years agoFix Blackfin HARDWARE_PM support
Mathieu Desnoyers [Tue, 15 Jan 2008 17:42:02 +0000 (12:42 -0500)]
Fix Blackfin HARDWARE_PM support

This patch restores the blackfin Hardware Performance Monitor Profiling
support that was killed by the combining of instrumentation menus in
commit 09cadedbdc01f1a4bea1f427d4fb4642eaa19da9.

Since there seems to be no good reason to behave differently from other
architectures, it now automatically selects the hardware performance
counters whenever the profiling is activated.

mach-common/irqpanic.c: pm_overflow calls pm_overflow_handler which is
in oprofile/op_model_bf533.c.  I doubt that setting HARDWARE_PM as "m"
will work at all, since the pm_overflow_handler should be in the core
kernel image because it is called by irqpanic.c.

Therefore, I change HARDWARE_PM from a tristate to a bool.

The whole arch/$(ARCH)/oprofile/ is built depending on CONFIG_OPROFILE. Since
part of the HARDWARE_PM support files sits in this directory, it makes sense to
also depend on OPROFILE, not only PROFILING. Since OPROFILE already depends on
PROFILING, it is correct to only depend on OPROFILE only.

Thanks to Adrian Bunk for finding this bug and providing an initial

Signed-off-by: Mathieu Desnoyers <>
CC: Adrian Bunk <>
CC: Randy Dunlap <>
Acked-by: Robin Getz <>
Signed-off-by: Linus Torvalds <>
14 years agoFix ARM profiling/instrumentation configuration
Linus Torvalds [Tue, 15 Jan 2008 17:23:51 +0000 (09:23 -0800)]
Fix ARM profiling/instrumentation configuration

Commit 09cadedbdc01f1a4bea1f427d4fb4642eaa19da9 ("Combine
instrumentation menus in kernel/Kconfig.instrumentation") broke ARM
profiling support, since ARM has some extra Kconfig options and doesn't
just use the common OPROFILE/KPROBES config options.

Rather than just revert the thing outright, or add ARM-specific
knowledge to the generic Kconfig.instrumentation file (where the only
and whole point was to be generic, not too architecture-specific), this
just makes ARM not use the generic version, since it doesn't suit it.

So create an arm-specific version of Kconfig.instrumentation instead,
and use that.

Acked-by: Ingo Molnar <>
Acked-by: Russell King <>
Signed-off-by: Linus Torvalds <>
14 years agoMerge git://
Linus Torvalds [Tue, 15 Jan 2008 16:08:40 +0000 (08:08 -0800)]
Merge git://git./linux/kernel/git/x86/linux-2.6-x86

* git://
  x86: asm-x86/msr.h: pull in linux/types.h
  x86: fix boot crash on HIGHMEM4G && SPARSEMEM

14 years agoMerge git://
Linus Torvalds [Tue, 15 Jan 2008 16:07:03 +0000 (08:07 -0800)]
Merge git://git./linux/kernel/git/davem/sparc-2.6

* git://
  [SPARC64]: Fix build with SPARSEMEM_VMEMMAP disabled.
  [SPARC]: Make gettimeofday() monotonic again.

14 years agoMerge git://
Linus Torvalds [Tue, 15 Jan 2008 16:06:47 +0000 (08:06 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://
  [TOKENRING]: rif_timer not initialized properly
  [NETFILTER]: bridge: fix double POST_ROUTING invocation
  [NETFILTER]: xt_helper: Do not bypass RCU
  [NETFILTER]: ip6t_eui64: Fixes calculation of Universal/Local bit
  [MACVLAN]: Prevent nesting macvlan devices
  [VLAN]: nested VLAN: fix lockdep's recursive locking warning
  [DECNET] ROUTE: fix rcu_dereference() uses in /proc/net/decnet_cache
  [BLUETOOTH]: Always send explicit hci_ll wake-up acks.
  [BLUETOOTH]: rfcomm tty BUG_ON() code fix
  [AX25] af_ax25: Possible circular locking.
  [AX25]: Kill user triggable printks.
  [IPV4] ROUTE: fix rcu_dereference() uses in /proc/net/rt_cache
  [NEIGH]: Fix race between neigh_parms_release and neightbl_fill_parms
  [NIU]: Support for Marvell PHY

14 years agoMerge branch 'merge' of git://
Linus Torvalds [Tue, 15 Jan 2008 16:01:48 +0000 (08:01 -0800)]
Merge branch 'merge' of git://git./linux/kernel/git/paulus/powerpc

* 'merge' of git://
  [POWERPC] Fix boot failure on POWER6
  [POWERPC] Workaround for iommu page alignment

14 years agox86: fix RTC_AIE with CONFIG_HPET_EMULATE_RTC
Bernhard Walle [Tue, 15 Jan 2008 15:44:38 +0000 (16:44 +0100)]

In the current code, RTC_AIE doesn't work if the RTC relies on
CONFIG_HPET_EMULATE_RTC because the code sets the RTC_AIE flag in
hpet_set_rtc_irq_bit().  The interrupt handles does accidentally check
for RTC_PIE and not RTC_AIE when comparing the time which was set in

I now verified on a test system here that without the patch applied,
the attached test program fails on a system that has HPET with
2.6.24-rc7-default. That's not critical since I guess the problem has
been there for several kernel releases, but as the fix is quite

Configuration is CONFIG_RTC=y and CONFIG_HPET_EMULATE_RTC=y.

Signed-off-by: Bernhard Walle <>
Acked-by: Thomas Gleixner <>
Signed-off-by: Ingo Molnar <>
14 years agox86: asm-x86/msr.h: pull in linux/types.h
Mike Frysinger [Tue, 15 Jan 2008 15:44:38 +0000 (16:44 +0100)]
x86: asm-x86/msr.h: pull in linux/types.h

Since the msr.h header uses types like __u32, it should pull in linux/types.h.

[ affects user-space that includes this header. We dont
  actually like user-space including raw kernel headers but it's a
  longstanding practice and it's easy for the kernel to be nice about
  this. ]

Signed-off-by: Mike Frysinger <>
Signed-off-by: Thomas Gleixner <>
Signed-off-by: Ingo Molnar <>
14 years agox86: fix boot crash on HIGHMEM4G && SPARSEMEM
Ingo Molnar [Tue, 15 Jan 2008 15:44:37 +0000 (16:44 +0100)]
x86: fix boot crash on HIGHMEM4G && SPARSEMEM

Denys Fedoryshchenko reported a bootup crash when he upgraded
his system from 3GB to 4GB RAM:

the bug is due to HIGHMEM4G && SPARSEMEM kernels making pfn_to_page()
to return an invalid pointer when the pfn is in a memory hole. The
256 MB PCI aperture at the end of RAM was not mapped by sparsemem,
and hence the pfn was not valid. But set_highmem_pages_init() iterated
this range without checking the pfn's validity first.

this bug was probably present in the sparsemem code ever since sparsemem
has been introduced in v2.6.13. It was masked due to HIGHMEM64G using
larger memory regions in sparsemem_32.h:

 #ifdef CONFIG_X86_PAE
 #define SECTION_SIZE_BITS       30
 #define MAX_PHYSADDR_BITS       36
 #define MAX_PHYSMEM_BITS        36
 #define SECTION_SIZE_BITS       26
 #define MAX_PHYSADDR_BITS       32
 #define MAX_PHYSMEM_BITS        32

which creates 1GB sparsemem regions instead of 64MB sparsemem regions.
So in practice we only ever created true sparsemem holes on x86 with
HIGHMEM4G - but that was rarely used by distros.

( btw., we could probably save 2MB of mem_map[]s on X86_PAE if we reduced
  the sparsemem region size to 256 MB. )

Signed-off-by: Ingo Molnar <>
Acked-by: Thomas Gleixner <>
14 years ago[POWERPC] Fix boot failure on POWER6
Paul Mackerras [Tue, 15 Jan 2008 06:29:33 +0000 (17:29 +1100)]
[POWERPC] Fix boot failure on POWER6

Commit 473980a99316c0e788bca50996375a2815124ce1 added a call to clear
the SLB shadow buffer before registering it.  Unfortunately this means
that we clear out the entries that slb_initialize has previously set in
there.  On POWER6, the hypervisor uses the SLB shadow buffer when doing
partition switches, and that means that after the next partition switch,
each non-boot CPU has no SLB entries to map the kernel text and data,
which causes it to crash.

This fixes it by reverting most of 473980a9 and instead clearing the
3rd entry explicitly in slb_initialize.  This fixes the problem that
473980a9 was trying to solve, but without breaking POWER6.

Signed-off-by: Paul Mackerras <>
14 years agoMerge branch 'upstream-linus' of git://
Linus Torvalds [Tue, 15 Jan 2008 05:26:08 +0000 (21:26 -0800)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://
  libata: relocate sdev->manage_start_stop configuration
  sata_sil24: freeze on non-dev errors reported via CERR
  sata_sil24: fix stupid typo
  ata_piix: ignore ATA_DMA_ERR on vmware ich4

14 years agoMerge branch 'upstream' of git://
Linus Torvalds [Tue, 15 Jan 2008 05:25:39 +0000 (21:25 -0800)]
Merge branch 'upstream' of git://

* 'upstream' of git://
  [MIPS] Cacheops.h: Fix typo.
  [MIPS] Cobalt: Qube1 has no serial port so don't use it
  [MIPS] Cobalt: Fix ethernet interrupts for RaQ1
  [MIPS] Kconfig fixes for BCM47XX platform

14 years agoRevert "writeback: introduce writeback_control.more_io to indicate more io"
Linus Torvalds [Tue, 15 Jan 2008 05:21:29 +0000 (21:21 -0800)]
Revert "writeback: introduce writeback_control.more_io to indicate more io"

This reverts commit 2e6883bdf49abd0e7f0d9b6297fc3be7ebb2250b, as
requested by Fengguang Wu.  It's not quite fully baked yet, and while
there are patches around to fix the problems it caused, they should get
more testing.  Says Fengguang: "I'll resend them both for -mm later on,
in a more complete patchset".


for some of this discussion.

Requested-by: Fengguang Wu <>
Cc: Andrew Morton <>
Cc: Peter Zijlstra <>
Signed-off-by: Linus Torvalds <>
14 years ago[POWERPC] Workaround for iommu page alignment
Benjamin Herrenschmidt [Mon, 7 Jan 2008 23:34:22 +0000 (10:34 +1100)]
[POWERPC] Workaround for iommu page alignment

Commit 5d2efba64b231a1733c4048d1708d77e07f26426 changed our iommu code
so that it always uses an iommu page size of 4kB.  That means with our
current code, drivers may do a dma_map_sg() of a 64kB page and obtain
a dma_addr_t that is only 4k aligned.

This works fine in most cases except for some infiniband HW it seems,
where they tell the HW about the page size and it ignores the low bits
of the DMA address.

This works around it by making our IOMMU code enforce a PAGE_SIZE alignment
for mappings of objects that are page aligned in the first place and whose
size is larger or equal to a page.

Signed-off-by: Benjamin Herrenschmidt <>
Signed-off-by: Paul Mackerras <>
14 years agolibata: relocate sdev->manage_start_stop configuration
Tejun Heo [Mon, 14 Jan 2008 23:46:59 +0000 (08:46 +0900)]
libata: relocate sdev->manage_start_stop configuration

After 9b8e8de7, manage_start_stop configuration depends on valid ATA
device.  Move it into ata_scsi_dev_config().  This was detected by the
coverity checker.

Signed-off-by: Tejun Heo <>
Cc: Adrian Bunk <>
Signed-off-by: Jeff Garzik <>
14 years agosata_sil24: freeze on non-dev errors reported via CERR
Tejun Heo [Sun, 13 Jan 2008 05:04:16 +0000 (14:04 +0900)]
sata_sil24: freeze on non-dev errors reported via CERR

CERR reports errors detected during executing a command.  This doesn't
mean the error is tied to the command and can be recovered by just
issuing it again.  Many of the errors are fatal port-wide connditions
including HSM violation, host bus error and ATA bus error and require
freezing and port reset.

The freezing part wasn't implemented previously.  This used to be okay
because port resets were scheduled anyway and EH eventually resets and
recovers the port.  With PMP support added, this is no longer true.
The error condition and recover actions are attributed to the fan-out
port and the host port condition isn't properly recovered leading to
EH failures.

This patch makes CERR errors which require resets to freeze the port.
This will force host port reset and proper recovery.

Signed-off-by: Tejun Heo <>
Cc: Andrew Ryder <>
Signed-off-by: Jeff Garzik <>
14 years agosata_sil24: fix stupid typo
Tejun Heo [Sun, 13 Jan 2008 04:49:22 +0000 (13:49 +0900)]
sata_sil24: fix stupid typo

Fix stupid typo.

Signed-off-by: Tejun Heo <>
Signed-off-by: Jeff Garzik <>
14 years agoata_piix: ignore ATA_DMA_ERR on vmware ich4
Tejun Heo [Mon, 7 Jan 2008 10:38:53 +0000 (19:38 +0900)]
ata_piix: ignore ATA_DMA_ERR on vmware ich4

VMware ich4 emulation incorrectly sets DMA_ERR on TF error.  Ignore

Signed-off-by: Tejun Heo <>
Signed-off-by: Jeff Garzik <>
14 years ago[MIPS] Cacheops.h: Fix typo.
Ralf Baechle [Mon, 14 Jan 2008 14:46:31 +0000 (14:46 +0000)]
[MIPS] Cacheops.h: Fix typo.

Signed-off-by: Ralf Baechle <>
14 years ago[MIPS] Cobalt: Qube1 has no serial port so don't use it
Thomas Bogendoerfer [Fri, 11 Jan 2008 23:25:17 +0000 (00:25 +0100)]
[MIPS] Cobalt: Qube1 has no serial port so don't use it

Because Qube1 doesn't have a serial chip waiting for transmit fifo empty
takes forever, which isn't a good idea. No prom_putchar/early console
for Qube1 fixes this.

Signed-off-by: Thomas Bogendoerfer <>
Acked-by: Yoichi Yuasa <>
Signed-off-by: Ralf Baechle <>
14 years ago[MIPS] Cobalt: Fix ethernet interrupts for RaQ1
Thomas Bogendoerfer [Fri, 11 Jan 2008 23:25:14 +0000 (00:25 +0100)]
[MIPS] Cobalt: Fix ethernet interrupts for RaQ1

RAQ1 uses the same interrupt routing as Qube2.

Signed-off-by: Thomas Bogendoerfer <>
Signed-off-by: Ralf Baechle <>
14 years ago[MIPS] Kconfig fixes for BCM47XX platform
Aurelien Jarno [Tue, 11 Dec 2007 10:30:34 +0000 (11:30 +0100)]
[MIPS] Kconfig fixes for BCM47XX platform

The patch below fixes two problems for Kconfig on the BCM47xx platform:

- arch/mips/bcm47xx/gpio.c uses ssb_extif_* functions. Selecting
  SSB_DRIVER_EXTIF makes sure those functions are available.
- arch/mips/pci/pci.c needs, when enabled, platform specific functions,
  which are defined when SSB_PCICORE_HOSTMODE is enabled.

Signed-off-by: Aurelien Jarno <>
Signed-off-by: Ralf Baechle <>
14 years agoMerge branch 'i2c-for-linus' of git://
Linus Torvalds [Mon, 14 Jan 2008 21:23:20 +0000 (13:23 -0800)]
Merge branch 'i2c-for-linus' of git://

* 'i2c-for-linus' of git://
  i2c-sibyte: Fix an error path
  i2c: Driver IDs are optional
  i2c: Spelling fixes
  i2c-omap: Fix NULL pointer dereferencing

14 years agofix the "remove task_ppid_nr_ns" commit
Oleg Nesterov [Mon, 14 Jan 2008 21:02:37 +0000 (00:02 +0300)]
fix the "remove task_ppid_nr_ns" commit

Commit 84427eaef1fb91704c7112bdb598c810003b99f3 (remove task_ppid_nr_ns)
moved the task_tgid_nr_ns(task->real_parent) outside of lock_task_sighand().
This is wrong, ->real_parent could be freed/reused.

Both ->parent/real_parent point to nothing after __exit_signal() because
we remove the child from ->children list, and thus the child can't be
reparented when its parent exits.

rcu_read_lock() protects ->parent/real_parent, but _only_ if we know it was
valid before we take rcu lock.

Revert this part of the patch.

Signed-off-by: Oleg Nesterov <>
Signed-off-by: Linus Torvalds <>
14 years agoi2c-sibyte: Fix an error path
Jean Delvare [Mon, 14 Jan 2008 20:53:31 +0000 (21:53 +0100)]
i2c-sibyte: Fix an error path

If the registration of the second I2C channel fails, we really want to
unregister the first one before we return with an error.

While we're here, fix the printk right above so that it displays the
real driver name.

Signed-off-by: Jean Delvare <>
Cc: Ralf Baechle <>
14 years agoi2c: Driver IDs are optional
Jean Delvare [Mon, 14 Jan 2008 20:53:31 +0000 (21:53 +0100)]
i2c: Driver IDs are optional

Document the fact that I2C driver IDs are optional.

Signed-off-by: Jean Delvare <>
14 years agoi2c: Spelling fixes
Joe Perches [Mon, 14 Jan 2008 20:53:30 +0000 (21:53 +0100)]
i2c: Spelling fixes

[JD: One more fix in i2c-dev.]

Signed-off-by: Joe Perches <>
Signed-off-by: Jean Delvare <>
14 years agoi2c-omap: Fix NULL pointer dereferencing
Tony Lindgren [Mon, 14 Jan 2008 20:53:30 +0000 (21:53 +0100)]
i2c-omap: Fix NULL pointer dereferencing

This patch fixes bug #9581 reported by Marcio Buss. If kzalloc fails,
omap_i2c_write_reg() tries to reset an unallocated I2C controller.

Cc: Marcio Buss <>
Signed-off-by: Tony Lindgren <>
Signed-off-by: Jean Delvare <>
14 years agoMerge branch 'for-linus' of git://
Linus Torvalds [Mon, 14 Jan 2008 17:10:45 +0000 (09:10 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input

* 'for-linus' of git://
  Input: improve Kconfig help entries for HP Jornada devices
  Input: pass EV_PWR events to event handlers
  Input: spitzkbd - fix suspend key handling
  gameport: don't export functions that are static inline
  Input: jornada680_kbd - fix default keymap
  Input: Handle EV_PWR type of input caps in input_set_capability.

14 years agoOSS msnd: fix array overflows
Adrian Bunk [Mon, 14 Jan 2008 08:55:25 +0000 (00:55 -0800)]
OSS msnd: fix array overflows

Fix array overflows in the OSS msnd driver spotted by the Coverity checker.

Signed-off-by: Adrian Bunk <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agoCRIS v10: driver for ds1302 needs to include cris-specific i2c.h
Jesper Nilsson [Mon, 14 Jan 2008 08:55:24 +0000 (00:55 -0800)]
CRIS v10: driver for ds1302 needs to include cris-specific i2c.h

This fixes compilation error where i2c_init wasn't defined.
Also, remove the CVS log and version tags, they are no longer useful.

Signed-off-by: Jesper Nilsson <>
Cc: Mikael Starvik <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agouvesafb: fix section mismatch warnings
Randy Dunlap [Mon, 14 Jan 2008 08:55:24 +0000 (00:55 -0800)]
uvesafb: fix section mismatch warnings

Mark uvesafb_init_mtrr() as __devinit since its caller is __devinit
and since it accesses __devinitdata.

WARNING: vmlinux.o(.text+0x4df80e): Section mismatch: reference to (between 'uvesafb_init_mtrr' and 'uvesafb_show_vbe_ver')

Variable 'blank' cannot be __devinitdata since it is referenced in an
fb_ops method that could be called at any time.

WARNING: vmlinux.o(.text+0x4dfc1e): Section mismatch: reference to (between 'param_set_scroll' and 'vesa_setpalette')
WARNING: vmlinux.o(.text+0x4dfc24): Section mismatch: reference to (between 'param_set_scroll' and 'vesa_setpalette')

Signed-off-by: Randy Dunlap <>
Cc: "Antonino A. Daplas" <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agoCRIS v10: kernel/time.c needs to include linux/vmstat.h to compile
Jesper Nilsson [Mon, 14 Jan 2008 08:55:23 +0000 (00:55 -0800)]
CRIS v10: kernel/time.c needs to include linux/vmstat.h to compile

This fixes compile error when nr_free_pages() from linux/swap.h
expands to global_page_state(NR_FREE_PAGES), but linux/vmstat.h isn't
included to declare global_page_state().

Signed-off-by: Jesper Nilsson <>
Cc: Mikael Starvik <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agoCRIS v10: correct do_signal to fix oops and clean up signal handling in general
Jesper Nilsson [Mon, 14 Jan 2008 08:55:22 +0000 (00:55 -0800)]
CRIS v10: correct do_signal to fix oops and clean up signal handling in general

This fixes a kernel panic on boot due to do_signal not being compatible
with it's callers.

- do_signal now returns void, and does not have the previous signal set
  as a parameter.
- Remove sys_rt_sigsuspend, we can use the common one instead.
- Change sys_sigsuspend to be more like x86, don't call do_signal here.
- handle_signal, setup_frame and setup_rt_frame now return -EFAULT
  if we've delivered a segfault, which is used by callers to perform
  necessary cleanup.
- Break long lines, correct whitespace and formatting errors.

Signed-off-by: Jesper Nilsson <>
Cc: Mikael Starvik <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agoCRIS: define __ARCH_WANT_SYS_RT_SIGSUSPEND in unistd.h for CRIS
Jesper Nilsson [Mon, 14 Jan 2008 08:55:22 +0000 (00:55 -0800)]
CRIS: define __ARCH_WANT_SYS_RT_SIGSUSPEND in unistd.h for CRIS

This allows us to use the commong sys_rt_sigsuspend instead of
having our own.

Signed-off-by: Jesper Nilsson <>
Cc: Mikael Starvik <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agos3c2410fb: fix incorrect argument type in resume function
Krzysztof Helt [Mon, 14 Jan 2008 08:55:20 +0000 (00:55 -0800)]
s3c2410fb: fix incorrect argument type in resume function

Fix wrong pointer type passed into the s3c2410fb_init_registers()

Signed-off-by: Krzysztof Helt <>
Cc: "Antonino A. Daplas" <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agohugetlbfs: fix quota leak
Ken Chen [Mon, 14 Jan 2008 08:55:19 +0000 (00:55 -0800)]
hugetlbfs: fix quota leak

In the error path of both shared and private hugetlb page allocation,
the file system quota is never undone, leading to fs quota leak.  Fix
them up.

[ cleanup, micro-optimise]
Signed-off-by: Ken Chen <>
Acked-by: Adam Litke <>
Cc: David Gibson <>
Cc: William Lee Irwin III <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agoadvansys: fix section mismatch warning
Randy Dunlap [Mon, 14 Jan 2008 08:55:18 +0000 (00:55 -0800)]
advansys: fix section mismatch warning

Fix section mismatch warning:

WARNING: vmlinux.o(.exit.text+0x152a): Section mismatch: reference to (between 'advansys_isa_remove' and 'advansys_exit')

Signed-off-by: Randy Dunlap <>
Cc: Matthew Wilcox <>
Cc: James Bottomley <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agocciss: section mismatch
Randy Dunlap [Mon, 14 Jan 2008 08:55:17 +0000 (00:55 -0800)]
cciss: section mismatch

Mark cciss_pci_init() as __devinit, to fix section mismatch warning.

WARNING: vmlinux.o(.text+0x601fc9): Section mismatch: reference to .init.text: (between 'cciss_pci_init' and 'cciss_getgeometry')

Signed-off-by: Randy Dunlap <>
Cc: <>
Acked-by: Sam Ravnborg <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agoscsi/qla2xxx/qla_os.c section fix
Adrian Bunk [Mon, 14 Jan 2008 08:55:16 +0000 (00:55 -0800)]
scsi/qla2xxx/qla_os.c section fix

WARNING: vmlinux.o(.text+0x2a4462): Section mismatch: reference to .exit.text:qla2x00_remove_one (between 'qla2xxx_pci_error_detected' and 'qla2x00_stop_timer')

qla2x00_remove_one() mustn't be __devexit since it's called from

Signed-off-by: Adrian Bunk <>
Acked-by: Seokmann Ju <>
Acked-by: Andrew Vasquez <>
Cc: Randy Dunlap <>
Cc: James Bottomley <>
Acked-by: Sam Ravnborg <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agomacintosh: fix fabrication of caplock key events
Andy Wingo [Mon, 14 Jan 2008 08:55:15 +0000 (00:55 -0800)]
macintosh: fix fabrication of caplock key events

If the user has turned on the "restore_caplock_events" parameter, the
code mangles the capslock events correctly, then erroneously ignores
those events.  Fix logic to allow correct fallthrough.

Signed-off-by: Andy Wingo <>
Acked-by: Andrew McNabb <>
Cc: Dmitry Torokhov <>
Cc: Benjamin Herrenschmidt <>
cc: Paul Mackerras <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agoquicklists: Only consider memory that can be used with GFP_KERNEL
Christoph Lameter [Mon, 14 Jan 2008 08:55:14 +0000 (00:55 -0800)]
quicklists: Only consider memory that can be used with GFP_KERNEL

Quicklists calculates the size of the quicklists based on the number of
free pages.  This must be the number of free pages that can be allocated
with GFP_KERNEL.  node_page_state() includes the pages in ZONE_HIGHMEM and
ZONE_MOVABLE which may lead the quicklists to become too large causing OOM.

Signed-off-by: Christoph Lameter <>
Tested-by: Dhaval Giani <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agoMAINTAINERS: email update and add missing entry
Nicolas Ferre [Mon, 14 Jan 2008 08:55:13 +0000 (00:55 -0800)]
MAINTAINERS: email update and add missing entry

 - MAINTAINERS email update
 - add atmel_lcdfb entry

Signed-off-by: Nicolas Ferre <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agoTPM: fix suspend and resume failure
David Smith [Mon, 14 Jan 2008 08:55:12 +0000 (00:55 -0800)]
TPM: fix suspend and resume failure

The savestate command structure was being overwritten by the result of
running the TPM_SaveState command after one run, so make it a local
variable to the function instead of a global variable that gets

Acked-by: Pavel Machek <>
Cc: Kent Yoder <>
Cc: Marcel Selhorst <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agoKick CPUS that might be sleeping in cpus_idle_wait
Steven Rostedt [Mon, 14 Jan 2008 08:55:10 +0000 (00:55 -0800)]
Kick CPUS that might be sleeping in cpus_idle_wait

Sometimes cpu_idle_wait gets stuck because it might miss CPUS that are
already in idle, have no tasks waiting to run and have no interrupts going
to them.  This is common on bootup when switching cpu idle governors.

This patch gives those CPUS that don't check in an IPI kick.

I notice this while developing the mcount patches, that every once in a
while the system would hang. Looking deeper, the hang was always at boot
up when registering init_menu of the cpu_idle menu governor. Talking
with Thomas Gliexner, we discovered that one of the CPUS had no timer
events scheduled for it and it was in idle (running with NO_HZ). So the
CPU would not set the cpu_idle_state bit.

Hitting sysrq-t a few times would eventually route the interrupt to the
stuck CPU and the system would continue.

Note, I would have used the PDA isidle but that is set after the
cpu_idle_state bit is cleared, and would leave a window open where we
may miss being kicked.

hmm, looking closer at this, we still have a small race window between
clearing the cpu_idle_state and disabling interrupts (hence the RFC).

    CPU0:                          CPU 1:
  ---------                       ---------
 cpu_idle_wait():                 cpu_idle():
      |                           __cpu_cpu_var(is_idle) = 1;
      |                           if (__get_cpu_var(cpu_idle_state)) /* == 0 */
 per_cpu(cpu_idle_state, 1) = 1;         |
 if (per_cpu(is_idle, 1)) /* == 1 */     |
 smp_call_function(1)                    |
      |                             receives ipi and runs do_nothing.
 wait on map == empty               idle();
   /* waits forever */

So really we need interrupts off for most of this then. One might think
that we could simply clear the cpu_idle_state from do_nothing, but I'm
assuming that cpu_idle governors can be removed, and this might cause a
race that a governor might be used after the module was removed.

Venki said:

  I think your RFC patch is the right solution here.  As I see it, there is
  no race with your RFC patch.  As long as you call a dummy smp_call_function
  on all CPUs, we should be OK.  We can get rid of cpu_idle_state and the
  current wait forever logic altogether with dummy smp_call_function.  And so
  there wont be any wait forever scenario.

  The whole point of cpu_idle_wait() is to make all CPUs come out of idle
  loop atleast once.  The caller will use cpu_idle_wait something like this.

  // Want to change idle handler

  - Switch global idle handler to always present default_idle

  - call cpu_idle_wait so that all cpus come out of idle for an instant
    and stop using old idle pointer and start using default idle

  - Change the idle handler to a new handler

  - optional cpu_idle_wait if you want all cpus to start using the new
    handler immediately.

Maybe the below 1s patch is safe bet for .24.  But for .25, I would say we
just replace all complicated logic by simple dummy smp_call_function and
remove cpu_idle_state altogether.

Signed-off-by: Steven Rostedt <>
Cc: Venkatesh Pallipadi <>
Acked-by: Ingo Molnar <>
Acked-by: Thomas Gleixner <>
Cc: Andi Kleen <>
Cc: Len Brown <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agow1: decrement slave counter only in ->release() callback
Evgeniy Polyakov [Mon, 14 Jan 2008 08:55:08 +0000 (00:55 -0800)]
w1: decrement slave counter only in ->release() callback

Decrement the slave counter only in ->release() callback instead of both
in ->release() and w1 control.

Patch is based on debug work and preliminary patch made by Henri Laakso.
Henri noticed in debug that this counter becomes negative after w1 slave
device is physically removed.

Signed-off-by: Evgeniy Polyakov <>
Cc: Henri Laakso <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agomodules: de-mutex more symbol lookup paths in the module code
Rusty Russell [Mon, 14 Jan 2008 08:55:03 +0000 (00:55 -0800)]
modules: de-mutex more symbol lookup paths in the module code

Kyle McMartin reports sysrq_timer_list_show() can hit the module mutex
from hard interrupt context.  These paths don't need to though, since we
long ago changed all the module list manipulation to occur via

Disabling preemption is enough.

Signed-off-by: Rusty Russell <>
Cc: Ingo Molnar <>
Cc: Kyle McMartin <>
Signed-off-by: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years ago[TOKENRING]: rif_timer not initialized properly
Eric Dumazet [Mon, 14 Jan 2008 06:32:49 +0000 (22:32 -0800)]
[TOKENRING]: rif_timer not initialized properly

Signed-off-by: Eric Dumazet <>
Signed-off-by: David S. Miller <>
14 years agoInput: improve Kconfig help entries for HP Jornada devices
Kristoffer Ericson [Mon, 14 Jan 2008 05:54:23 +0000 (00:54 -0500)]
Input: improve Kconfig help entries for HP Jornada devices

Signed-off-by: Kristoffer Ericson <>
Signed-off-by: Dmitry Torokhov <>
14 years agoMerge
Linus Torvalds [Sun, 13 Jan 2008 18:03:10 +0000 (10:03 -0800)]

  [ARM] vfp: fix fuitod/fsitod instructions
  [ARM] pxa: silence warnings from cpu_is_xxx() macros

14 years agoMerge branch 'upstream-linus' of git://
Linus Torvalds [Sun, 13 Jan 2008 18:02:26 +0000 (10:02 -0800)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/netdev-2.6

* 'upstream-linus' of git://
  spidernet MAINTAINERship update
  sky2: remove check for PCI wakeup setting from BIOS
  sky2: large memory workaround.
  fs_enet: check for phydev existence in the ethtool handlers
  [usb netdev] asix: fix regression
  r8169: fix missing loop variable increment
  ip1000: menu location change
  Fixed a small typo in the loopback driver
  3c509: PnP resource management fix
  netxen: fix byte-swapping in tx and rx
  netxen: optimize tx handling
  netxen: stop second phy correctly
  netxen: update driver version
  netxen: update MAINTAINERS
  endianness noise in tulip_core
  de4x5 fixes
  xircom_cb endianness fixes
  rt2x00: Put 802.11 data on 4 byte boundary
  rt2x00: Corectly initialize rt2500usb MAC
  rt2x00: Allow rt61 to catch up after a missing tx report

14 years agoMerge branch 'merge' of git://
Linus Torvalds [Sun, 13 Jan 2008 18:01:45 +0000 (10:01 -0800)]
Merge branch 'merge' of git://git./linux/kernel/git/paulus/powerpc

* 'merge' of git://
  [POWERPC] Fix CPU hotplug when using the SLB shadow buffer
  [POWERPC] efika: add phy-handle property for fec_mpc52xx

14 years agoMerge branch 'release' of git://
Linus Torvalds [Sun, 13 Jan 2008 17:58:22 +0000 (09:58 -0800)]
Merge branch 'release' of git://git./linux/kernel/git/lenb/linux-acpi-2.6

* 'release' of git://
  pnpacpi: print resource shortage message only once
  PM: ACPI and APM must not be enabled at the same time
  ACPI: apply quirk_ich6_lpc_acpi to more ICH8 and ICH9
  ACPICA: fix acpi_serialize hang regression
  ACPI : Not register gsi for PCI IDE controller in legacy mode
  ACPI: Reintroduce run time configurable max_cstate for !CPU_IDLE case
  ACPI: Make sysfs interface in ACPI power optional.
  ACPI: EC: Enable boot EC before bus_scan
  increase PNP_MAX_PORT to 40 from 24

14 years agoknfsd: Allow NFSv2/3 WRITE calls to succeed when krb5i etc is used.
NeilBrown [Fri, 11 Jan 2008 22:06:52 +0000 (17:06 -0500)]
knfsd: Allow NFSv2/3 WRITE calls to succeed when krb5i etc is used.

When RPCSEC/GSS and krb5i is used, requests are padded, typically to a multiple
of 8 bytes.  This can make the request look slightly longer than it
really is.

As of

f34b95689d2ce001c "The NFSv2/NFSv3 server does not handle zero
length WRITE request correctly",

the xdr decode routines for NFSv2 and NFSv3 reject requests that aren't
the right length, so krb5i (for example) WRITE requests can get lost.

This patch relaxes the appropriate test and enhances the related comment.

Signed-off-by: Neil Brown <>
Signed-off-by: J. Bruce Fields <>
Cc: Peter Staubach <>
Signed-off-by: Linus Torvalds <>
14 years agoremove task_ppid_nr_ns
Roland McGrath [Thu, 10 Jan 2008 20:52:04 +0000 (12:52 -0800)]
remove task_ppid_nr_ns

task_ppid_nr_ns is called in three places.  One of these should never
have called it.  In the other two, using it broke the existing
semantics.  This was presumably accidental.  If the function had not
been there, it would have been much more obvious to the eye that those
patches were changing the behavior.  We don't need this function.

In task_state, the pid of the ptracer is not the ppid of the ptracer.

In do_task_stat, ppid is the tgid of the real_parent, not its pid.
I also moved the call outside of lock_task_sighand, since it doesn't
need it.

In sys_getppid, ppid is the tgid of the real_parent, not its pid.

Signed-off-by: Roland McGrath <>
Signed-off-by: Linus Torvalds <>
14 years ago[SPARC64]: Fix build with SPARSEMEM_VMEMMAP disabled.
David S. Miller [Fri, 11 Jan 2008 05:10:54 +0000 (21:10 -0800)]
[SPARC64]: Fix build with SPARSEMEM_VMEMMAP disabled.

Signed-off-by: David S. Miller <>
14 years ago[SPARC]: Make gettimeofday() monotonic again.
David S. Miller [Wed, 9 Jan 2008 13:09:06 +0000 (05:09 -0800)]
[SPARC]: Make gettimeofday() monotonic again.

When we switched away from the optimized C version
things stopped being monotonic.

The problem is that if we run this with interrupts disabled, we can
see the interrupt pending because the counter reached the limit value.
When this happens the counter has bit 31 set, and the low bits start
counting again from zero.

Reported by Martin Habets.

Signed-off-by: David S. Miller <>
14 years agoPull bugzilla-9535 into release branch
Len Brown [Sat, 12 Jan 2008 23:06:27 +0000 (18:06 -0500)]
Pull bugzilla-9535 into release branch

14 years agopnpacpi: print resource shortage message only once
Len Brown [Sat, 12 Jan 2008 22:56:36 +0000 (17:56 -0500)]
pnpacpi: print resource shortage message only once

pnpacpi: exceeded the max number of IO resources: 40

While this message is a real error and should thus
remain KERN_ERR (even a new dmesg line is seen as a regression
by some, since it was not printed in 2.6.23...) it is certainly
impolite to print this warning 50 times should you happen to
have the oddball system with 90 io resources under a device...

So print the warning just once.

In 2.6.25 we'll get rid of the limits altogether
and these warnings will vanish with them.

Signed-off-by: Len Brown <>
14 years agospidernet MAINTAINERship update
Jens Osterkamp [Fri, 11 Jan 2008 12:44:35 +0000 (13:44 +0100)]
spidernet MAINTAINERship update

Acked-by: Linas Vepstas <>
Signed-off-by: Jeff Garzik <>
14 years agosky2: remove check for PCI wakeup setting from BIOS
Stephen Hemminger [Fri, 11 Jan 2008 00:14:13 +0000 (16:14 -0800)]
sky2: remove check for PCI wakeup setting from BIOS

The driver checks status of PCI power management to mark
default setting of Wake On Lan. On some systems this works, but often
it reports a that WOL is disabled when it isn't.

This patch gets rid of that check and just reports the wake on
lan status based on the hardware capablity.

Signed-off-by: Stephen Hemminger <>
Signed-off-by: Jeff Garzik <>
14 years agosky2: large memory workaround.
Stephen Hemminger [Fri, 11 Jan 2008 00:14:12 +0000 (16:14 -0800)]
sky2: large memory workaround.

This patch might fix problems with 4G or more of memory.
It stops the driver from doing a small optimization for Tx and Rx,
and instead always sets the high-page on tx/rx descriptors.


Signed-off-by: Stephen Hemminger <>
Signed-off-by: Jeff Garzik <>
14 years agoUse access mode instead of open flags to determine needed permissions
Linus Torvalds [Sat, 12 Jan 2008 22:06:34 +0000 (14:06 -0800)]
Use access mode instead of open flags to determine needed permissions

Way back when (in commit 834f2a4a1554dc5b2598038b3fe8703defcbe467, aka
"VFS: Allow the filesystem to return a full file pointer on open intent"
to be exact), Trond changed the open logic to keep track of the original
flags to a file open, in order to pass down the the intent of a dentry
lookup to the low-level filesystem.

However, when doing that reorganization, it changed the meaning of
namei_flags, and thus inadvertently changed the test of access mode for
directories (and RO filesystem) to use the wrong flag.  So fix those
test back to use access mode ("acc_mode") rather than the open flag

Issue noticed by Bill Roman at Datalight.

Reported-and-tested-by: Bill Roman <>
Acked-by: Trond Myklebust <>
Acked-by: Al Viro <>
Cc: Christoph Hellwig <>
Cc: Andrew Morton <>
Signed-off-by: Linus Torvalds <>
14 years agofs_enet: check for phydev existence in the ethtool handlers
Anton Vorontsov [Tue, 8 Jan 2008 19:05:55 +0000 (22:05 +0300)]
fs_enet: check for phydev existence in the ethtool handlers

Otherwise oops will happen if ethernet device has not been opened:

Unable to handle kernel paging request for data at address 0x0000014c
Faulting instruction address: 0xc016f7f0
Oops: Kernel access of bad area, sig: 11 [#1]
NIP: c016f7f0 LR: c01722a0 CTR: 00000000
REGS: c79ddc70 TRAP: 0300   Not tainted  (2.6.24-rc3-g820a386b)
MSR: 00029000 <EE,ME>  CR: 20004428  XER: 20000000
DEAR: 0000014c, ESR: 00000000
TASK = c789f5e0[999] 'snmpd' THREAD: c79dc000
GPR00: c01aceb8 c79ddd20 c789f5e0 00000000 c79ddd3c 00000000 c79ddd64 00000000
GPR08: 00000000 c7845b60 c79dde3c c01ace80 20004422 200249fc 000002a0 100da728
GPR16: 100c0000 00000000 00000000 00000000 20022078 00000009 200220e0 bfc85558
GPR24: c79ddd3c 00000000 00000000 c02e0e70 c022fc64 ffffffff c7845800 bfc85498
NIP [c016f7f0] phy_ethtool_gset+0x0/0x4c
LR [c01722a0] fs_get_settings+0x18/0x28
Call Trace:
[c79ddd20] [c79dde38] 0xc79dde38 (unreliable)
[c79ddd30] [c01aceb8] dev_ethtool+0x294/0x11ec
[c79dde30] [c01aaa44] dev_ioctl+0x454/0x6a8
[c79ddeb0] [c019b9d4] sock_ioctl+0x84/0x230
[c79dded0] [c007ded8] do_ioctl+0x34/0x8c
[c79ddee0] [c007dfbc] vfs_ioctl+0x8c/0x41c
[c79ddf10] [c007e38c] sys_ioctl+0x40/0x74
[c79ddf40] [c000d4c0] ret_from_syscall+0x0/0x3c
Instruction dump:
81630000 800b0030 2f800000 419e0010 7c0803a6 4e800021 7c691b78 80010014
7d234b78 38210010 7c0803a6 4e800020 <8003014c7c6b1b78 38600000 90040004

Signed-off-by: Anton Vorontsov <>
Acked-by: Vitaly Bordug <>
Signed-off-by: Jeff Garzik <>