* git://git.samba.org/sfrench/cifs-2.6:
  cifs: Assume passwords are encoded according to iocharset (try #2)
  CIFS: Fix the VFS brlock cache usage in posix locking case
  [CIFS] Update cifs version to 1.76
  CIFS: Remove extra mutex_unlock in cifs_lock_add_if

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (45 commits)
  be2net: Add detect UE feature for Lancer
  be2net: Prevent CQ full condition for Lancer
  be2net: Fix disabling multicast promiscous mode
  be2net: Fix endian issue in RX filter command
  af_packet: de-inline some helper functions
  MAINTAINERS: Add can-gw include to maintained files
  net: Add back alignment for size for __alloc_skb
  net: add missing bh_unlock_sock() calls
  l2tp: fix race in l2tp_recv_dequeue()
  ixgbevf: Update release version
  ixgbe: DCB, return max for IEEE traffic classes
  ixgbe: fix reading of the buffer returned by the firmware
  ixgbe: Fix compiler warnings
  ixgbe: fix smatch splat due to missing NULL check
  ixgbe: fix disabling of Tx laser at probe
  ixgbe: Fix link issues caused by a reset while interface is down
  igb: Fix for I347AT4 PHY cable length unit detection
  e100: make sure vlan support isn't advertised on old adapters
  e1000e: demote a debugging WARN to a debug log message
  net: fix typo in drivers/net/ethernet/xilinx/ll_temac_main.c
  ...

Add code to detect UE in case of Lancer.
Signed-off-by: NPadmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Indicate to HW that the CQ is cleaned up before posting new RX buffers.
This prevents the HW to go into CQ full error condition.
Signed-off-by: NPadmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If user tries to disable multicast promiscous mode, the adapter remains
in this mode as resetting the multicast promiscous mode was missing
in RX filter command. Fixed this.
Signed-off-by: NPadmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Use cpu_to_le32() for mcast_num field in RX filter command as this
field is of type u32.
Signed-off-by: NPadmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This popped some compiler errors due to mismatched prototypes. Just
remove most manual inlines, the compiler should be able to figure out
what makes sense to inline and not.

net/packet/af_packet.c:252: warning: 'prb_curr_blk_in_use' declared inline after being called
net/packet/af_packet.c:252: warning: previous declaration of 'prb_curr_blk_in_use' was here
net/packet/af_packet.c:258: warning: 'prb_queue_frozen' declared inline after being called
net/packet/af_packet.c:258: warning: previous declaration of 'prb_queue_frozen' was here
net/packet/af_packet.c:248: warning: 'packet_previous_frame' declared inline after being called
net/packet/af_packet.c:248: warning: previous declaration of 'packet_previous_frame' was here
net/packet/af_packet.c:251: warning: 'packet_increment_head' declared inline after being called
net/packet/af_packet.c:251: warning: previous declaration of 'packet_increment_head' was here
Signed-off-by: NOlof Johansson <olof@lixom.net>
Cc: Chetan Loke <loke.chetan@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Commit c1aabdf3 (can-gw: add netlink based
CAN routing) added a new include file that's neither referenced by any of
the CAN maintainers.
Signed-off-by: NOliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Commit 87fb4b7b (net: more
accurate skb truesize) changed the alignment of size. This
can cause problems at least on some machines with NFS root:

Unhandled fault: alignment exception (0x801) at 0xc183a43a
Internal error: : 801 [#1] PREEMPT
Modules linked in:
CPU: 0    Not tainted  (3.1.0-08784-g5eeee4a #733)
pc : [<c02fbba0>]    lr : [<c02fbb9c>]    psr: 60000013
sp : c180fef8  ip : 00000000  fp : c181f580
r10: 00000000  r9 : c044b28c  r8 : 00000001
r7 : c183a3a0  r6 : c1835be0  r5 : c183a412  r4 : 000001f2
r3 : 00000000  r2 : 00000000  r1 : ffffffe6  r0 : c183a43a
Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
Control: 0005317f  Table: 10004000  DAC: 00000017
Process swapper (pid: 1, stack limit = 0xc180e270)
Stack: (0xc180fef8 to 0xc1810000)
fee0:                                                       00000024 00000000
ff00: 00000000 c183b9c0 c183b8e0 c044b28c c0507ccc c019dfc4 c180ff2c c0503cf8
ff20: c180ff4c c180ff4c 00000000 c1835420 c182c740 c18349c0 c05233c0 00000000
ff40: 00000000 c00e6bb8 c180e000 00000000 c04dd82c c0507e7c c050cc18 c183b9c0
ff60: c05233c0 00000000 00000000 c01f34f4 c0430d70 c019d364 c04dd898 c04dd898
ff80: c04dd82c c0507e7c c180e000 00000000 c04c584c c01f4918 c04dd898 c04dd82c
ffa0: c04ddd28 c180e000 00000000 c0008758 c181fa60 3231d82c 00000037 00000000
ffc0: 00000000 c04dd898 c04dd82c c04ddd28 00000013 00000000 00000000 00000000
ffe0: 00000000 c04b2224 00000000 c04b21a0 c001056c c001056c 00000000 00000000
Function entered at [<c02fbba0>] from [<c019dfc4>]
Function entered at [<c019dfc4>] from [<c01f34f4>]
Function entered at [<c01f34f4>] from [<c01f4918>]
Function entered at [<c01f4918>] from [<c0008758>]
Function entered at [<c0008758>] from [<c04b2224>]
Function entered at [<c04b2224>] from [<c001056c>]
Code: e1a00005 e3a01028 ebfa7cb0 e35a0000 (e5858028)

Here PC is at __alloc_skb and &shinfo->dataref is unaligned because
skb->end can be unaligned without this patch.

As explained by Eric Dumazet <eric.dumazet@gmail.com>, this happens
only with SLOB, and not with SLAB or SLUB:

* Eric Dumazet <eric.dumazet@gmail.com> [111102 15:56]:
>
> Your patch is absolutely needed, I completely forgot about SLOB :(
>
> since, kmalloc(386) on SLOB gives exactly ksize=386 bytes, not nearest
> power of two.
>
> [   60.305763] malloc(size=385)->ffff880112c11e38 ksize=386 -> nsize=2
> [   60.305921] malloc(size=385)->ffff88007c92ce28 ksize=386 -> nsize=2
> [   60.306898] malloc(size=656)->ffff88007c44ad28 ksize=656 -> nsize=272
> [   60.325385] malloc(size=656)->ffff88007c575868 ksize=656 -> nsize=272
> [   60.325531] malloc(size=656)->ffff88011c777230 ksize=656 -> nsize=272
> [   60.325701] malloc(size=656)->ffff880114011008 ksize=656 -> nsize=272
> [   60.346716] malloc(size=385)->ffff880114142008 ksize=386 -> nsize=2
> [   60.346900] malloc(size=385)->ffff88011c777690 ksize=386 -> nsize=2
Signed-off-by: NTony Lindgren <tony@atomide.com>
Acked-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Simon Kirby reported lockdep warnings and following messages :

[104661.897577] huh, entered softirq 3 NET_RX ffffffff81613740
preempt_count 00000101, exited with 00000102?

[104661.923653] huh, entered softirq 3 NET_RX ffffffff81613740
preempt_count 00000101, exited with 00000102?

Problem comes from commit 0e734419
(ipv4: Use inet_csk_route_child_sock() in DCCP and TCP.)

If inet_csk_route_child_sock() returns NULL, we should release socket
lock before freeing it.

Another lock imbalance exists if __inet_inherit_port() returns an error
since commit 093d2823 ( tproxy: fix hash locking issue when using
port redirection in __inet_inherit_port()) a backport is also needed for
>= 2.6.37 kernels.
Reported-by: NSimon Kirby <sim@hostway.ca>
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Tested-by: NEric Dumazet <eric.dumazet@gmail.com>
CC: Balazs Scheidler <bazsi@balabit.hu>
CC: KOVACS Krisztian <hidden@balabit.hu>
Reviewed-by: NThomas Gleixner <tglx@linutronix.de>
Tested-by: NSimon Kirby <sim@hostway.ca>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Misha Labjuk reported panics occurring in l2tp_recv_dequeue()

If we release reorder_q.lock, we must not keep a dangling pointer (tmp),
since another thread could manipulate reorder_q.

Instead we must restart the scan at beginning of list.
Reported-by: NMisha Labjuk <spiked.yar@gmail.com>
Tested-by: NMisha Labjuk <spiked.yar@gmail.com>
Signed-off-by: NEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (37 commits)
  MIPS: O32: Provide definition of registers ta0 .. ta3.
  MIPS: perf: Add Octeon support for hardware perf.
  MIPS: perf: Add support for 64-bit perf counters.
  MIPS: perf: Reorganize contents of perf support files.
  MIPS: perf: Cleanup formatting in arch/mips/kernel/perf_event.c
  MIPS: Add accessor macros for 64-bit performance counter registers.
  MIPS: Add probes for more Octeon II CPUs.
  MIPS: Add more CPU identifiers for Octeon II CPUs.
  MIPS: XLR, XLS: Add comment for smp setup
  MIPS: JZ4740: GPIO: Check correct IRQ in demux handler
  MIPS: JZ4740: GPIO: Simplify IRQ demuxer
  MIPS: JZ4740: Use generic irq chip
  MIPS: Alchemy: remove all CONFIG_SOC_AU1??? defines
  MIPS: Alchemy: kill au1xxx.h header
  MIPS: Alchemy: clean DMA code of CONFIG_SOC_AU1??? defines
  MIPS, IDE: Alchem, au1xxx-ide: Remove pb1200/db1200 header dep
  MIPS: Alchemy: Redo PCI as platform driver
  MIPS: Alchemy: more base address cleanup
  MIPS: Alchemy: rewrite USB platform setup.
  MIPS: Alchemy: abstract USB block control register access
  ...

Fix up trivial conflicts in:
	arch/mips/alchemy/devboards/db1x00/platform.c
	drivers/ide/Kconfig
	drivers/mmc/host/au1xmmc.c
	drivers/video/Kconfig
	sound/mips/Kconfig

The sb_edac driver is marginally useful on a 32-bit kernel, and
currently has 64-bit divide compile errors when building that config.
For now, make this build on only for 64-bit kernels.
Signed-off-by: NJosh Boyer <jwboyer@redhat.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

* 'next' of git://github.com/kernelslacker/cpufreq:
  [CPUFREQ] db8500: support all frequencies
  [CPUFREQ] db8500: remove unneeded for loop iteration over freq_table
  [CPUFREQ] ARM Exynos4210 PM/Suspend compatibility with different bootloaders
  [CPUFREQ] ARM: ux500: send cpufreq notification for all cpus
  [CPUFREQ] e_powersaver: Allow user to lower maximum voltage
  [CPUFREQ] e_powersaver: Check BIOS limit for CPU frequency
  [CPUFREQ] e_powersaver: Additional checks
  [CPUFREQ] exynos4210: Show list of available frequencies

* 'for-next' of git://git.infradead.org/users/sameo/mfd-2.6: (80 commits)
  mfd: Fix missing abx500 header file updates
  mfd: Add missing <linux/io.h> include to intel_msic
  x86, mrst: add platform support for MSIC MFD driver
  mfd: Expose TurnOnStatus in ab8500 sysfs
  mfd: Remove support for early drop ab8500 chip
  mfd: Add support for ab8500 v3.3
  mfd: Add ab8500 interrupt disable hook
  mfd: Convert db8500-prcmu panic() into pr_crit()
  mfd: Refactor db8500-prcmu request_clock() function
  mfd: Rename db8500-prcmu init function
  mfd: Fix db5500-prcmu defines
  mfd: db8500-prcmu voltage domain consumers additions
  mfd: db8500-prcmu reset code retrieval
  mfd: db8500-prcmu tweak for modem wakeup
  mfd: Add db8500-pcmu watchdog accessor functions for watchdog
  mfd: hwacc power state db8500-prcmu accessor
  mfd: Add db8500-prcmu accessors for PLL and SGA clock
  mfd: Move to the new db500 PRCMU API
  mfd: Create a common interface for dbx500 PRCMU drivers
  mfd: Initialize DB8500 PRCMU regs
  ...

Fix up trivial conflicts in
	arch/arm/mach-imx/mach-mx31moboard.c
	arch/arm/mach-omap2/board-omap3beagle.c
	arch/arm/mach-u300/include/mach/irqs.h
	drivers/mfd/wm831x-spi.c

* 'sh-latest' of git://github.com/pmundt/linux-sh:
  sh: Add default uImage rule for sh7757lcr
  sh: modify the asm/sh_eth.h to linux/sh_eth.h in sh7757lcr
  sh: userimask.c needs linux/stat.h
  sh: pfc: Add GPIO IRQ support
  sh: modify the asm/sh_eth.h to linux/sh_eth.h in some boards
  sh: pfc: Remove unused gpio_in_use member
  sh: add parameters for EHCI and RIIC in clock-sh7757.c
  sh: kexec: Add PHYSICAL_START
  SH: irq: Remove IRQF_DISABLED
  sh: pfc: get_config_reg() shift clean up
  sh: intc: Add IRQ trigger bit field check
  sh: drop unused Kconfig symbol
  sh: Fix implicit declaration of function numa_node_id
  sh: kexec: Register crashk_res
  sh: ecovec: add renesas_usbhs DMAEngine support

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ohad/hwspinlock:
  hwspinlock: add MAINTAINERS entries
  hwspinlock/omap: omap_hwspinlock_remove should be __devexit
  hwspinlock/u8500: add hwspinlock driver
  hwspinlock/core: register a bank of hwspinlocks in a single API call
  hwspinlock/core: remove stubs for register/unregister
  hwspinlock/core: use a mutex to protect the radix tree
  hwspinlock/core/omap: fix id issues on multiple hwspinlock devices
  hwspinlock/omap: simplify allocation scheme
  hwspinlock/core: simplify 'owner' handling
  hwspinlock/core: simplify Kconfig

Fix up trivial conflicts (addition of omap_hwspinlock_pdata, removal of
omap_spinlock_latency) in arch/arm/mach-omap2/hwspinlock.c

Also, do an "evil merge" to fix a compile error in omap_hsmmc.c which
for some reason was reported in the same email thread as the "please
pull hwspinlock changes".

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  Revert "HID: multitouch: decide if hid-multitouch needs to handle mt devices"
  HID: drivers/hid/hid-roccat.c: eliminate a null pointer dereference
  HID: hid-apple: add device ID of another wireless aluminium
  HID: Add device IDs for Macbook Pro 8 keyboards

This reverts commit 144060fe.

It causes a resume regression for Andi on his Acer Aspire 1830T post
3.1.  The screen just stays black after wakeup.

Also, it really looks like the wrong way to suspend and resume perf
events: I think they should be done as part of the CPU suspend and
resume, rather than as a notifier that does smp_call_function().
Reported-by: NAndi Kleen <andi@firstfloor.org>
Acked-by: NIngo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/linux-dm:
  dm: raid fix device status indicator when array initializing
  dm log userspace: add log device dependency
  dm log userspace: fix comment hyphens
  dm: add thin provisioning target
  dm: add persistent data library
  dm: add bufio
  dm: export dm get md
  dm table: add immutable feature
  dm table: add always writeable feature
  dm table: add singleton feature
  dm kcopyd: add dm_kcopyd_zero to zero an area
  dm: remove superfluous smp_mb
  dm: use local printk ratelimit
  dm table: propagate non rotational flag

* 'for-linus' of git://git.selinuxproject.org/~jmorris/linux-security:
  TOMOYO: Fix interactive judgment functionality.

Signed-off-by: NGreg Rose <gregory.v.rose@intel.com>
Tested-by: NSibai Li <sibai.li@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Returning the max traffic classes on get requests simplifies
user space configurations because applications will know
explicitly how many traffic classes can be used.

Typical switch implementations use 2 or 3 traffic classes
so this not seen often today. And user space can learn
the number of traffic classes by return codes but this
allows user space to configure ixgbe correctly at the
start.
Signed-off-by: NJohn Fastabend <john.r.fastabend@intel.com>
Tested-by: NRoss Brattain <ross.b.brattain@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This patch fixes some issues found in the buffer read portion of
ixgbe_host_interface_command()

- use `bi` as the buffer index counter instead of `i`
- add conversion to native cpu byte ordering on register read
- fix conversion from bytes to dword
- use dword_len instead of buf_len when reading the register
Signed-off-by: NEmil Tantilov <emil.s.tantilov@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

Wrap SR-IOV specific functions in CONFIG_PCI_IOV to avoid compiler
warnings.
Signed-off-by: NGreg Rose <gregory.v.rose@intel.com>
Tested-by: NSibai Li <sibai.li@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

ixgbe_ieee_ets and ixgbe_ieee_pfc are intialized at
the same time. Do a check for both before configuring
IEEE802.1Qaz. Also max_frame was causing a sparse
warning resolved here as well.
Reported-by: NDan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: NJohn Fastabend <john.r.fastabend@intel.com>
Tested-by: NRoss Brattain <ross.b.brattain@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

register_netdev() calls ndo_set_features() which may result in HW reset
which in turn will bring the laser back up.

This patch moves ixgbe_laser_tx_disable() below register_netdev()
in ixgbe_probe() to make sure laser is shut off on load.
Signed-off-by: NEmil Tantilov <emil.s.tantilov@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

* 'linux_next' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-edac: (21 commits)
  MAINTAINERS: add an entry for Edac Sandy Bridge driver
  edac: tag sb_edac as EXPERIMENTAL, as it requires more testing
  EDAC: Fix incorrect edac mode reporting in sb_edac
  edac: sb_edac: Add it to the building system
  edac: Add an experimental new driver to support Sandy Bridge CPU's
  i7300_edac: Fix error cleanup logic
  i7core_edac: Initialize memory name with cpu, channel, bank
  i7core_edac: Fix compilation on 32 bits arch
  i7core_edac: scrubbing fixups
  EDAC: Correct Kconfig dependencies
  i7core_edac: return -ENODEV if no MC is found
  i7core_edac: use edac's own way to print errors
  MAINTAINERS: remove dropped edac_mce.* from the file
  i7core_edac: Drop the edac_mce facility
  x86, MCE: Use notifier chain only for MCE decoding
  EDAC i7core: Use mce socketid for better compatibility
  i7core_edac: Don't enable memory scrubbing for Xeon 35xx
  i7core_edac: Add scrubbing support
  edac: Move edac main structs to include/linux/edac.h
  i7core_edac: Fix oops when trying to inject errors
  ...

Interface fails to obtain link on 82599 SFP in the following scenario:

1. Set advertised speed to GB:
ethtool -s eth0 advertise 0x20

2. Bring interface down
ip link set eth0 down

3. Issue any command that leads to a reset:
ethtool -t eth0

4. Bring link back up:
ip link set eth0 up

Following patch makes sure that the driver flaps the Tx laser every time
ixgbe_start_hw() is called, and not only when the speed is set.
Signed-off-by: NEmil Tantilov <emil.s.tantilov@intel.com>
Tested-by: NPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

The PHY cable length unit detection was not using the correct
the correct PHY data variable for I347AT4.
Signed-off-by: NTomasz Kantecki <tomasz.kantecki@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

e100 parts don't support vlan offload but they generally do
allow use of vlans in higher software layers via the 8021q module.
That said, there are a couple of really old revisions of e100
hardware that don't even allow the longer frame sizes
required for vlan use with standard MTU.

Use the VLAN_CHALLENGED flag to prevent vlan binding to these
devices.
Reported-by: NMichael Tokarev <mjt@tls.msk.ru>
Signed-off-by: NJesse Brandeburg <jesse.brandeburg@intel.com>
CC: Michael Tokarev <mjt@tls.msk.ru>
CC: David Lamparter <equinox@diac24.net>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

This debugging message was recently added but it does not need to be as
alarming as a WARN.
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

* 'for-3.2' of git://linux-nfs.org/~bfields/linux:
  nfsd4: typo logical vs bitwise negate in nfsd4_decode_share_access

* 'misc-3.2' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  MAINTAINERS: Update entry for IA64
  [IA64] gpio: GENERIC_GPIO default must be n
  [IA64[ add CONFIG_NET_VENDOR_INTEL=y to default config files where needed
  [IA64] agp/hp-agp: Allow binding user memory to the AGP GART
  [IA64] sn2: add missing put_cpu()

Says Andrew:

 "60 patches.  That's good enough for -rc1 I guess.  I have quite a lot
  of detritus to be rechecked, work through maintainers, etc.

 - most of the remains of MM
 - rtc
 - various misc
 - cgroups
 - memcg
 - cpusets
 - procfs
 - ipc
 - rapidio
 - sysctl
 - pps
 - w1
 - drivers/misc
 - aio"

* akpm: (60 commits)
  memcg: replace ss->id_lock with a rwlock
  aio: allocate kiocbs in batches
  drivers/misc/vmw_balloon.c: fix typo in code comment
  drivers/misc/vmw_balloon.c: determine page allocation flag can_sleep outside loop
  w1: disable irqs in critical section
  drivers/w1/w1_int.c: multiple masters used same init_name
  drivers/power/ds2780_battery.c: fix deadlock upon insertion and removal
  drivers/power/ds2780_battery.c: add a nolock function to w1 interface
  drivers/power/ds2780_battery.c: create central point for calling w1 interface
  w1: ds2760 and ds2780, use ida for id and ida_simple_get() to get it
  pps gpio client: add missing dependency
  pps: new client driver using GPIO
  pps: default echo function
  include/linux/dma-mapping.h: add dma_zalloc_coherent()
  sysctl: make CONFIG_SYSCTL_SYSCALL default to n
  sysctl: add support for poll()
  RapidIO: documentation update
  drivers/net/rionet.c: fix ethernet address macros for LE platforms
  RapidIO: fix potential null deref in rio_setup_device()
  RapidIO: add mport driver for Tsi721 bridge
  ...

While back-porting Johannes Weiner's patch "mm: memcg-aware global
reclaim" for an internal effort, we noticed a significant performance
regression during page-reclaim heavy workloads due to high contention of
the ss->id_lock.  This lock protects idr map, and serializes calls to
idr_get_next() in css_get_next() (which is used during the memcg hierarchy
walk).

Since idr_get_next() is just doing a look up, we need only serialize it
with respect to idr_remove()/idr_get_new().  By making the ss->id_lock a
rwlock, contention is greatly reduced and performance improves.

Tested: cat a 256m file from a ramdisk in a 128m container 50 times on
each core (one file + container per core) in parallel on a NUMA machine.
Result is the time for the test to complete in 1 of the containers.
Both kernels included Johannes' memcg-aware global reclaim patches.

Before rwlock patch: 1710.778s
After rwlock patch: 152.227s
Signed-off-by: NAndrew Bresticker <abrestic@google.com>
Cc: Paul Menage <menage@gmail.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: NKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Ying Han <yinghan@google.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

In testing aio on a fast storage device, I found that the context lock
takes up a fair amount of cpu time in the I/O submission path.  The reason
is that we take it for every I/O submitted (see __aio_get_req).  Since we
know how many I/Os are passed to io_submit, we can preallocate the kiocbs
in batches, reducing the number of times we take and release the lock.

In my testing, I was able to reduce the amount of time spent in
_raw_spin_lock_irq by .56% (average of 3 runs).  The command I used to
test this was:

   aio-stress -O -o 2 -o 3 -r 8 -d 128 -b 32 -i 32 -s 16384 <dev>

I also tested the patch with various numbers of events passed to
io_submit, and I ran the xfstests aio group of tests to ensure I didn't
break anything.
Signed-off-by: NJeff Moyer <jmoyer@redhat.com>
Cc: Daniel Ehrenberg <dehrenberg@google.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Fix typo in code comment.
Signed-off-by: NRakib Mullick <rakib.mullick@gmail.com>
Acked-by: NDmitry Torokhov <dtor@vmware.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

In vmballoon_reserve_page(), flags has been passed from the callee
function (vmballoon_inflate here).  So, we can determine can_sleep outside
the loop.
Signed-off-by: NRakib Mullick <rakib.mullick@gmail.com>
Acked-by: NDmitry Torokhov <dtor@vmware.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>