* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
  cpumask: Use cpu_*_mask accessors code: alpha
  cpumask: fix powernow-k8: partial revert of 2fdf66b4

This is the cause of the DMA faults and disk corruption that people have
been seeing. Some chipsets neglect to report the RWBF "capability" --
the flag which says that we need to flush the chipset write-buffer when
changing the DMA page tables, to ensure that the change is visible to
the IOMMU.

Override that bit on the affected chipsets, and everything is happy
again.

Thanks to Chris and Bhavesh and others for helping to debug.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Tested-by: Chris Wright <chrisw@sous-sol.org>
Reviewed-by: Bhavesh Davda <bhavesh@vmware.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Getting this wrong caused

	WARNING: at fs/namespace.c:636 mntput_no_expire+0xac/0xf2()

due to optimistically checking cpu_writer->mnt outside the spinlock.

Here's what we really want:
 * we know that nobody will set cpu_writer->mnt to mnt from now on
 * all changes to that sucker are done under cpu_writer->lock
 * we want the laziest equivalent of
	spin_lock(&cpu_writer->lock);
	if (likely(cpu_writer->mnt != mnt)) {
		spin_unlock(&cpu_writer->lock);
		continue;
	}
	/* do stuff */
  that would make sure we won't miss earlier setting of ->mnt done by
  another CPU.

Anyway, for now we just move the spin_lock() earlier and move the test
into the properly locked region.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Reported-and-tested-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Impact: use new API, fix SMP bug.

Use the new accessors rather than frobbing bits directly.

This also removes the bug introduced in ee0c468b (alpha: compile
fixes) which had Alpha setting bits on an on-stack cpumask, not the
cpu_online_map.

Cc: Richard Henderson <rth@twiddle.net>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Acked-by: Ingo Molnar <mingo@elte.hu>

Impact: fix powernow-k8 when acpi=off (or other error).

There was a spurious change introduced into powernow-k8 in this patch:
so that we try to "restore" the cpus_allowed we never saved.  We revert
that file.

See lkml "[PATCH] x86/powernow: fix cpus_allowed brokage when
acpi=off" from Yinghai for the bug report.

Cc: Mike Travis <travis@sgi.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Ingo Molnar <mingo@elte.hu>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ASoC: Only register AC97 bus if it's not done already
  ALSA: hda - Add snd_hda_multi_out_dig_cleanup()
  ALSA: hda - Add missing terminator in slave dig-out array
  ALSA: hda - Change HP dv7 (103c:30f4) quirk from hp-m4 to hp-dv5 model
  ALSA: hda - Register (new) devices at reconfig
  ALSA: mtpav - Fix initial value for input hwport
  ALSA: hda - add id for Intel IbexPeak integrated HDMI codec
  ALSA: hda - compute checksum in HDMI audio infoframe
  ALSA: hda - enable HDMI audio pin out at module loading time
  ALSA: hda - allow multi-channel HDMI audio playback when ELD is not present
  ASoC: Update SDP3430 machine driver for snd_soc_card
  ALSA: hda - Add quirk for Asus z37e (1043:8284)
  sound: Remove OSSlib stuff from linux/soundcard.h
  ASoC: WM8990: Fix kcontrol's private value use in put callback
  ASoC: TLV320AIC3X: Fix kcontrol's private value use in put callback

uids in namespaces other than init don't get a sysfs entry.

For those in the init namespace, while we're waiting to remove
the sysfs entry for the uid the uid is still hashed, and
alloc_uid() may re-grab that uid without getting a new
reference to the user_ns, which we've already put in free_user
before scheduling remove_user_sysfs_dir().
Reported-and-tested-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Serge E. Hallyn <serue@us.ibm.com>
Acked-by: David Howells <dhowells@redhat.com>
Tested-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

ASoC supports both explicit codec drivers for AC97 devices and a simple
driver which uses the standard ALSA AC97 framework for codec support.
When used with the generic AC97 codec support that will provide the
ad hoc AC97 device for drivers like touchscreens to attach to so the
core shouldn't do so.
Reported-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

Added the helper function snd_hda_multi_out_dig_cleanup() to clean up
the digital outputs with multi setup.  This call is needed in cases
the codec supports multiple digital outputs as slaves.  Otherwise the
slave widgets aren't properly cleaned up.

For a single digital output (e.g. in patch_conexant.c), this call isn't
needed.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Added the missing terminator for ad1989b_slave_dig_outs[].

Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

Change HP dv7 quirk: although reported to work with hp-m4 model
(https://bugzilla.novell.com/show_bug.cgi?id=445321), the original
report doesn't contain info about testing of internal microphone.

Recently I received a report about internal mic not working
(https://qa.mandriva.com/show_bug.cgi?id=44855#c193), this must be
related with the forced line in on pin 0x0e done with hp-m4 model. Thus
change the current quirk from STAC_HP_M4 to STAC_HP_DV5, later reported
to be fixed on a provided kernel with this change
(https://qa.mandriva.com/show_bug.cgi?id=44855#c196).
Signed-off-by: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (32 commits)
  wimax: fix oops in wimax_dev_get_by_genl_info() when looking up non-wimax iface
  net: 4 bytes kernel memory disclosure in SO_BSDCOMPAT gsopt try #2
  netxen: fix compile waring "label ‘set_32_bit_mask’ defined but not used" on IA64 platform
  bnx2: Update version to 1.9.2 and copyright.
  bnx2: Fix jumbo frames error handling.
  bnx2: Update 5709 firmware.
  bnx2: Update 5706/5708 firmware.
  3c505: do not set pcb->data.raw beyond its size
  Documentation/connector/cn_test.c: don't use gfp_any()
  net: don't use in_atomic() in gfp_any()
  IRDA: cnt is off by 1
  netxen: remove pcie workaround
  sun3: print when lance_open() fails
  qlge: bugfix: Add missing rx buf clean index on early exit.
  qlge: bugfix: Fix RX scaling values.
  qlge: bugfix: Fix TSO breakage.
  qlge: bugfix: Add missing dev_kfree_skb_any() call.
  qlge: bugfix: Add missing put_page() call.
  qlge: bugfix: Fix fatal error recovery hang.
  qlge: bugfix: Use netif_receive_skb() and vlan_hwaccel_receive_skb().
  ...

When a non-wimax interface is looked up by the stack, a bad pointer is
returned when the looked-up interface is not found in the list (of
registered WiMAX interfaces). This causes an oops in the caller when
trying to use the pointer.

Fix by properly setting the pointer to NULL if we don't exit from the
list_for_each() with a found entry.
Signed-off-by: Inaky Perez-Gonzalez <inaky@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

In function sock_getsockopt() located in net/core/sock.c, optval v.val
is not correctly initialized and directly returned in userland in case
we have SO_BSDCOMPAT option set.

This dummy code should trigger the bug:

int main(void)
{
	unsigned char buf[4] = { 0, 0, 0, 0 };
	int len;
	int sock;
	sock = socket(33, 2, 2);
	getsockopt(sock, 1, SO_BSDCOMPAT, &buf, &len);
	printf("%x%x%x%x\n", buf[0], buf[1], buf[2], buf[3]);
	close(sock);
}

Here is a patch that fix this bug by initalizing v.val just after its
declaration.
Signed-off-by: Clément Lecigne <clement.lecigne@netasq.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

When compile the latest kernel on IA64 platform,I got a warning:
drivers/net/netxen/netxen_nic_main.c:203: warning: label ‘set_32_bit_mask’ 
defined but not used

We do not need label ‘set_32_bit_mask’  on IA64 platform,So move it to #else.
Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

If errors are reported on a frame descriptor, we need to
account for the buffer pages that may have been used for this
error packet and recycle them.  Otherwise, we may get the wrong
pages for the next packet.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Benjamin Li <benli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

New firmware fixes a data corruption issue when receiving and
placing jumbo frames into host buffers.  In some cases, the
buffer descriptor is not updated correctly and this will lead
to the driver linking the wrong number of pages into the SKB.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

New firmware fixes a data corruption issue when receiving and
placing jumbo frames into host buffers.  In some cases, the
buffer descriptor is not updated correctly and this will lead
to the driver linking the wrong number of pages into the SKB.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Ensure that we do not set pcb->data.raw beyond its size, print an error message
and return false if we attempt to. A timout message was printed one too early.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

cn_test_timer_func() is a timer handler and can never use GFP_KERNEL -
there's no point in using gfp_any() here.

Also, use setup_timer().
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

The problem is that in_atomic() will return false inside spinlocks if
CONFIG_PREEMPT=n.  This will lead to deadlockable GFP_KERNEL allocations
from spinlocked regions.

Secondly, if CONFIG_PREEMPT=y, this bug solves itself because networking
will instead use GFP_ATOMIC from this callsite.  Hence we won't get the
might_sleep() debugging warnings which would have informed us of the buggy
callsites.

Solve both these problems by switching to in_interrupt().  Now, if someone
runs a gfp_any() allocation from inside spinlock we will get the warning
if CONFIG_PREEMPT=y.

I reviewed all callsites and most of them were too complex for my little
brain and none of them documented their interface requirements.  I have no
idea what this patch will do.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

If no prior break occurs, cnt reaches 101 after the loop, so we are still able
to change speed when cnt has become 100.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Remove workaround for pcie bug in early revisions of NX3031
(rev 41 or earlier). This is taken care of during firmware init.

The workaround required writing pcie config reg of every
pcie function on a card, not all of which are enabled.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

With while (--i > 0) { ... } i reaches 0; print when lance_open() fails
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

The large receive buffer queue is not properly tracking the current
index in the case where an early exit occurs.  This can happen when a
page alloc or dma mapping fails.  If this occurs the queue will get
out of sync and invalid indexes can be written to the hardware.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Receive packets were only scaling across 2 of the receive queues. The
value was hardcoded to 2 instead of being based on how many rx queues
were running.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Moved the buffer mapping to a point after TSO logic has modified the
iph->check field. We were seeing stale data on the PCIe bus.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

We put the skb back if we can't get mapping for it.  We don't
want unmapped buffers on our receive buffer queue.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

We put the page back if we can't get mapping for it.  We don't
want unmapped buffers on our receive buffer queue.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

Replace calls to vlan_hwaccel_rx() and netif_rx().
Thanks to Dave Miller for pointing out the the driver was making
the wrong upcall for passing packets into the stack.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

With while (limit--) { ... } limit reaches -1, so 0 means success.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
  mm: Export symbol ksize()

A bug was introduced into write_cache_pages cyclic writeout by commit
31a12666 ("mm: write_cache_pages cyclic
fix").  The intention (and comments) is that we should cycle back and
look for more dirty pages at the beginning of the file if there is no
more work to be done.

But the !done condition was dropped from the test.  This means that any
time the page writeout loop breaks (eg.  due to nr_to_write == 0), we
will set index to 0, then goto again.  This will set done_index to
index, then find done is set, so will proceed to the end of the
function.  When updating mapping->writeback_index for cyclic writeout,
we now use done_index == 0, so we're always cycling back to 0.

This seemed to be causing random mmap writes (slapadd and iozone) to
start writing more pages from the LRU and writeout would slowdown, and
caused bugzilla entry

	http://bugzilla.kernel.org/show_bug.cgi?id=12604

about Berkeley DB slowing down dramatically.

With this patch, iozone random write performance is increased nearly
5x on my system (iozone -B -r 4k -s 64k -s 512m -s 1200m on ext2).
Signed-off-by: Nick Piggin <npiggin@suse.de>
Reported-and-tested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>