We've confirmed that the debug version of write_lock() can get stuck for long
enough to cause NMI watchdog timeouts and hence a crash.

We don't know why, yet.   Disable it for now.

Also disable the similar read_lock() code.  Just in case.

Thanks to Dave Olson <olson@unixfolk.com> for reporting and testing.
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

With CONFIG_PCI=n:

  CC      drivers/edac/edac_mc.o
drivers/edac/edac_mc.c: In function ‘add_mc_to_global_list’:
drivers/edac/edac_mc.c:1362: error: implicit declaration of function ‘to_platform_device’
drivers/edac/edac_mc.c:1362: error: invalid type argument of ‘->’
drivers/edac/edac_mc.c: In function ‘edac_mc_add_mc’:
drivers/edac/edac_mc.c:1467: error: invalid type argument of ‘->’
drivers/edac/edac_mc.c: In function ‘edac_mc_del_mc’:
drivers/edac/edac_mc.c:1504: error: invalid type argument of ‘->’
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

It should be possible to suspend, either to RAM or to disk, if there's a
traced process that has just reached a breakpoint.  However, this is a
special case, because its parent process might have been frozen already and
then we are unable to deliver the "freeze" signal to the traced process.
If this happens, it's better to cancel the freezing of the traced process.

Ref. http://bugzilla.kernel.org/show_bug.cgi?id=6787Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] make uncached allocator more node aware

The uncached allocator has a function, uncached_get_new_chunk(), that needs
to be serialized on a per node basis. It also has a global variable,
allocated_granules, which should be defined on a per node basis and protected
by that serialization. Additionally, all error returns from functions called
(like ia64_pal_mc_drain()) should be handled appropriately.
Signed-off-by: Dean Nelson <dcn@sgi.com>
Acked-by: Jes Sorenson <jes@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

* 'fixes' of git://git.linux-nfs.org/pub/linux/nfs-2.6:
  SUNRPC: Fix obvious refcounting bugs in rpc_pipefs.
  RPC: Ensure that we disconnect TCP socket when client requests error out
  NLM/lockd: remove b_done
  NFS: make 2 functions static
  NFS: Release dcache_lock in an error path of nfs_path

* master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq:
  [CPUFREQ] Propagate acpi_processor_preregister_performance return value.
  [CPUFREQ] [2/2] demand load governor modules.
  [CPUFREQ] [1/2] add __find_governor helper and clean up some error handling.
  [CPUFREQ] Longhaul - Rename & fix multipliers table
  [CPUFREQ] Longhaul - Fix power state test to do something more useful
  [CPUFREQ] Longhaul - Readd accidentally dropped line
  [CPUFREQ] Make longhaul_walk_callback() static
  [CPUFREQ] X86_GX_SUSPMOD must depend on PCI
  [CPUFREQ] Longhaul - Initialise later.
  [CPUFREQ] Longhaul - Workaround issues with APIC.
  [CPUFREQ] Longhaul - Hook into ACPI C states.
  [CPUFREQ] return error when failing to set minfreq

* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  [PATCH] ahci: skip protocol test altogether in spurious interrupt code

* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6:
  [PATCH] myri10ge - Fix spurious invokations of the watchdog reset handler
  [PATCH] myri10ge - Write the firmware in 256-bytes chunks
  [PATCH] Stop calling phy_stop_interrupts() twice
  [PATCH] s2io driver bug fixes #2
  [PATCH] s2io driver bug fixes #1
  [PATCH] zd1211rw: Packet filter fix for managed (STA) mode
  [PATCH] zd1211rw: Fixed endianess issue with length info tag detection
  [PATCH] zd1211rw: Remove bogus assert
  [PATCH] zd1211rw: Fix software encryption/decryption
  [PATCH] zd1211rw: Pass more management frame types up to host
  [PATCH] zd1211rw: Fixes radiotap header

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6:
  PNP: Add missing casts in printk() arguments
  PCI: docking station: remove dock uevents
  PCI: Unhide the SMBus on Asus PU-DLS
  PCI Hotplug: add acpiphp to MAINTAINERS
  PCI: pci/search: EXPORTs cannot be __devinit
  PCIE: cleanup on probe error
  pcie: fix warnings when CONFIG_PM=n

Skip protocol test altogether in spurious interrupt code. If PIOS is received
when it shouldn't, ahci will raise protocol violation.
Signed-off-by: Unicorn Chang <uchang@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

Fix spurious invocations of the watchdog reset handler.
Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

When writing the firmware to the NIC, the FIFO is 256-bytes long,
so we use 256-bytes chunks and a read to wait until the previous
write is done.
Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

Prevent phylib from freeing PHY IRQ twice on closing an eth device:
phy_disconnect() first calls phy_stop_interrupts(), then it calls
phy_stop_machine() which in turn calls phy_stop_interrupts() making the
kernel complain on each bootup...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

	This patch contains some of the bug fixes and enhancements done to
	s2io driver. Following are the brief description of changes

	1. code cleanup to handle gso modification better
	2. Move repeated code in rx path, to a common function
	   s2io_chk_rx_buffers()
	3. Bug fix in MSI interrupt
	4. clear statistics when card is down
	5. Avoid linked list traversing in lro aggregation.
	6. Use pci_dma_sync_single_for_cpu for buffer0 in case of 2/3
	   buffer mode.
	7. ethtool tso get/set functions to set clear NETIF_F_TSO6
	8. Stop LRO aggregation when we receive ECN notification
Signed-off-by: Ananda Raju <ananda.raju@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

	This patch contains some of the bug fixes and enhancements done to
	s2io driver. Following are the brief description of changes

	1. Introduced macro "S2IO_PARM_INT" for declaring integer load parameter
	2. UDP_RR test failure, memset txdl after Tx completion
	3. PXE boot may leave adapter in unknown state so do reset in probe.
	4. Add Tx completion code in netpoll
	5. In s2io_vpd_read() move array vpd_data[] to pointer, saves stack memory
	6. Fix bug in ethtool online test
Signed-off-by: Ananda Raju <ananda.raju@neterion.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

Merge branch 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream-fixes

Doh!
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
(cherry picked from 496f408f2f0e7ee5481a7c2222189be6c4f5aa6c commit)

If we're part way through transmitting a TCP request, and the client
errors, then we need to disconnect and reconnect the TCP socket in order to
avoid confusing the server.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
(cherry picked from 031a50c8b9ea82616abd4a4e18021a25848941ce commit)

We never actually set the b_done field any more; it's always zero.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
(cherry picked from af8412d4283ef91356e65e0ed9b025b376aebded commit)

nfs_writedata_free() and nfs_readdata_free() can now become static.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
(cherry picked from 5e1ce40f0c3c8f67591aff17756930d7a18ceb1a commit)

In one of the error paths of nfs_path, it may return with dcache_lock still
held; fix this by adding and using a new error path Elong_unlock which unlocks
dcache_lock.
Signed-off-by: Josh Triplett <josh@freedesktop.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
(cherry picked from f4b90b43677fb23297c56802c3056fc304f988d9 commit)

Some resource_size_t values are fed to printk() without handling the fact
that they can have different size depending on your .config.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Remove uevent dock notifications.  There are no consumers
of these events at present, and uevents are likely not the
correct way to send this type of event anyway.

Until I get some kind of idea if anyone in userspace cares
about dock events, I will just not send any.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Unhide the SMBus controller on the Asus PU-DLS board.
This fixes bug #6763.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Add acpiphp to the MAINTAINERS file.
Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

EXPORTed symbols cannot be __init/__devinit.
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

If pcie_portdrv_probe() fails but it had already called
pci_enable_device(), then call pci_disable_device() when
returning error.

Is there some reason that this isn't being done?
or was it just missed?
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de>
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] fix show_mem for VIRTUAL_MEM_MAP+FLATMEM
  [IA64] align high endpoint of VIRTUAL_MEM_MAP
  [PATCH] Fix RAID5 + IA64 compile
  [IA64] Don't alloc empty frame in ia64_switch_mode_phys
  [IA64] Do not assume output registers be reservered.
  [IA64] add platform check to snsc driver init
  [IA64] sparse cleanups
  [IA64] Fix breakage in simscsi.c
  [IA64] Format /proc/pal/*/version_info correctly

Wait until all users have closed their device context before allowing
device unregistration to complete.  This prevents a crash caused by
referring to stale data structures.

A better solution would be to have a way to revoke contexts rather
than waiting for userspace to close the context, but that's a much
bigger change that will have to wait.  For now let's at least avoid
the crash.
Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Remove references to the IPoIB IETF working group as it has been closed.
Signed-off-by: Or Gerlitz <ogerlitz@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Data corruption has been seen with Mellanox SRP targets when FMRs
create a memory region with I/O virtual address != 0.  Add a
workaround that disables FMR merging for Mellanox targets (OUI 0002c9).
Signed-off-by: Ishai Rabinovitz <ishai@mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

contig.c (FLATMEM) requires the same optimization as in discontig.c for show_mem
when VIRTUAL_MEM_MAP is in use. Otherwise FLATMEM has softlockup timeouts.
This was boot tested for memory configuration: SPARSEMEM,
DISCONTIG+VIRTUAL_MEM_MAP, FLATMEM, FLATMEM+VIRTUAL_MEM_MAP and
FLATMEM+VIRTUAL_MEM_MAP with largest memory gap less than LARGE_GAP by
using boot parameter "mem=".

This was boot tested and "echo m >/proc/sysrq-trigger" output evaluated for
: FLATMEM, FLATMEM+VIRTUAL_MEM_MAP, DISCONTIGMEM+VIRTUAL_MEM_MAP and
SPARSEMEM.
Signed-off-by: Bob Picco <bob.picco@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

Assure that vmem_map's high endpoint is MAX_ORDER aligned. Not doing so violates
the buddy allocator algorithm. Also anyone using mem=XXX on boot line and
not aligned to MAX_ORDER requires this patch in order to satisfy buddy
allocator. vmem_map always starts at pfn 0. The potentially large MAX_ORDER
on ia64 (due to hugetlbfs) requires that the end of vmem_map be aligned
to MAX_ORDER_NR_PAGES.

This was boot tested for: FLATMEM, FLATMEM+VIRTUAL_MEM_MAP,
DISCONTIGMEM+VIRTUAL_MEM_MAP and SPARSEMEM.
Signed-off-by: Bob Picco <bob.picco@hp.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

CONFIG_MD_RAID5 became CONFIG_MD_RAID456 in drivers/md/Kconfig.  Make
the same change in arch/ia64
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Aron Griffis <aron@hp.com>
Acked-by: Jes Sorenson <jes@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

Protect against srp_reset_device() clearing the req_queue while
srp_reconnect_target() is in progress (note that state change at
the top of srp_reconnect_target() is not sufficient for this since
srp_reset_device() ignores the state).
Signed-off-by: Ishai Rabinovitz <ishai@mellanox.co.il>
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Report error code rather than success (0) on failure allocating
timewait_info in ib_send_cm_req().
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

Define a constant MTHCA_ARRAY_MASK to replace repeated uses of
(PAGE_SIZE / sizeof (void *) - 1) in mthca array code.
Signed-off-by: Roland Dreier <rolandd@cisco.com>

mthca_array_clear() does not clear the slot if the used count is
positive. This leads to crashes in mthca_qp_event() since that uses
mthca_array_get() to check that the qp is valid.

Discovered by Ali Ayoub.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>