175 files changed, 1082 insertions, 664 deletions

diff --git a/.mailmap b/.mailmap
index 2909c33bc54e..658003aa9446 100644
--- a/.mailmap
+++ b/.mailmap
@@ -111,6 +111,7 @@ Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de>
 Uwe Kleine-König <ukl@pengutronix.de>
 Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
 Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
+Viresh Kumar <viresh.linux@gmail.com> <viresh.kumar@st.com>
 Takashi YOSHII <takashi.yoshii.zj@renesas.com>
 Yusuke Goda <goda.yusuke@renesas.com>
 Gustavo Padovan <gustavo@las.ic.unicamp.br>
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 5bc8a476c15e..cfedf63cce15 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -219,6 +219,7 @@ What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
 What:           /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
 What:           /sys/bus/iio/devices/iio:deviceX/in_voltage_scale
 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
+What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_scale
 What:           /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
 What:           /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
@@ -273,6 +274,7 @@ What:		/sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
 What:           /sys/.../iio:deviceX/in_voltageX_scale_available
 What:           /sys/.../iio:deviceX/in_voltage-voltage_scale_available
 What:           /sys/.../iio:deviceX/out_voltageX_scale_available
+What:           /sys/.../iio:deviceX/out_altvoltageX_scale_available
 What:           /sys/.../iio:deviceX/in_capacitance_scale_available
 KernelVersion:  2.635
 Contact:        linux-iio@vger.kernel.org
@@ -298,14 +300,19 @@ Description:
                 gives the 3dB frequency of the filter in Hz.
 
 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
+What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
 KernelVersion:  2.6.37
 Contact:        linux-iio@vger.kernel.org
 Description:
                 Raw (unscaled, no bias etc.) output voltage for
                 channel Y.  The number must always be specified and
                 unique if the output corresponds to a single channel.
+                While DAC like devices typically use out_voltage,
+                a continuous frequency generating device, such as
+                a DDS or PLL should use out_altvoltage.
 
 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
+What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
 KernelVersion:  2.6.37
 Contact:        linux-iio@vger.kernel.org
 Description:
@@ -316,6 +323,8 @@ Description:
 
 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
 What:           /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
+What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
+What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
 KernelVersion:  2.6.38
 Contact:        linux-iio@vger.kernel.org
 Description:
@@ -330,6 +339,8 @@ Description:
 
 What:           /sys/.../iio:deviceX/out_votlageY_powerdown_mode_available
 What:           /sys/.../iio:deviceX/out_voltage_powerdown_mode_available
+What:           /sys/.../iio:deviceX/out_altvotlageY_powerdown_mode_available
+What:           /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
 KernelVersion:  2.6.38
 Contact:        linux-iio@vger.kernel.org
 Description:
@@ -338,6 +349,8 @@ Description:
 
 What:           /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
 What:           /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
+What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
+What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
 KernelVersion:  2.6.38
 Contact:        linux-iio@vger.kernel.org
 Description:
@@ -346,6 +359,24 @@ Description:
                 normal operation. Y may be suppressed if all outputs are
                 controlled together.
 
+What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
+KernelVersion:  3.4.0
+Contact:        linux-iio@vger.kernel.org
+Description:
+                Output frequency for channel Y in Hz. The number must always be
+                specified and unique if the output corresponds to a single
+                channel.
+
+What:           /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
+KernelVersion:  3.4.0
+Contact:        linux-iio@vger.kernel.org
+Description:
+                Phase in radians of one frequency/clock output Y
+                (out_altvoltageY) relative to another frequency/clock output
+                (out_altvoltageZ) of the device X. The number must always be
+                specified and unique if the output corresponds to a single
+                channel.
+
 What:           /sys/bus/iio/devices/iio:deviceX/events
 KernelVersion:  2.6.35
 Contact:        linux-iio@vger.kernel.org
diff --git a/Documentation/arm/SPEAr/overview.txt b/Documentation/arm/SPEAr/overview.txt
index 57aae7765c74..65610bf52ebf 100644
--- a/Documentation/arm/SPEAr/overview.txt
+++ b/Documentation/arm/SPEAr/overview.txt
@@ -60,4 +60,4 @@ Introduction
   Document Author
   ---------------
 
-  Viresh Kumar <viresh.kumar@st.com>, (c) 2010-2012 ST Microelectronics
+  Viresh Kumar <viresh.linux@gmail.com>, (c) 2010-2012 ST Microelectronics
diff --git a/MAINTAINERS b/MAINTAINERS
index 3e30a3afe2a4..eb22272b2116 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -579,7 +579,7 @@ F:	drivers/net/appletalk/
 F:      net/appletalk/
 
 ARASAN COMPACT FLASH PATA CONTROLLER
-M:      Viresh Kumar <viresh.kumar@st.com>
+M:     Viresh Kumar <viresh.linux@gmail.com>
 L:      linux-ide@vger.kernel.org
 S:      Maintained
 F:      include/linux/pata_arasan_cf_data.h
@@ -5296,7 +5296,7 @@ S:	Maintained
 F:      drivers/pinctrl/
 
 PIN CONTROLLER - ST SPEAR
-M:      Viresh Kumar <viresh.kumar@st.com>
+M:     Viresh Kumar <viresh.linux@gmail.com>
 L:      spear-devel@list.st.com
 L:      linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 W:      http://www.st.com/spear
@@ -5873,7 +5873,7 @@ S:	Maintained
 F:      drivers/tty/serial
 
 SYNOPSYS DESIGNWARE DMAC DRIVER
-M:      Viresh Kumar <viresh.kumar@st.com>
+M:     Viresh Kumar <viresh.linux@gmail.com>
 S:      Maintained
 F:      include/linux/dw_dmac.h
 F:      drivers/dma/dw_dmac_regs.h
@@ -6021,7 +6021,7 @@ S:	Maintained
 F:      drivers/mmc/host/sdhci-s3c.c
 
 SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) ST SPEAR DRIVER
-M:      Viresh Kumar <viresh.kumar@st.com>
+M:     Viresh Kumar <viresh.linux@gmail.com>
 L:      spear-devel@list.st.com
 L:      linux-mmc@vger.kernel.org
 S:      Maintained
@@ -6377,7 +6377,7 @@ S:	Maintained
 F:      include/linux/compiler.h
 
 SPEAR PLATFORM SUPPORT
-M:      Viresh Kumar <viresh.kumar@st.com>
+M:     Viresh Kumar <viresh.linux@gmail.com>
 M:      Shiraz Hashim <shiraz.hashim@st.com>
 L:      spear-devel@list.st.com
 L:      linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -6386,7 +6386,7 @@ S:	Maintained
 F:      arch/arm/plat-spear/
 
 SPEAR13XX MACHINE SUPPORT
-M:      Viresh Kumar <viresh.kumar@st.com>
+M:     Viresh Kumar <viresh.linux@gmail.com>
 M:      Shiraz Hashim <shiraz.hashim@st.com>
 L:      spear-devel@list.st.com
 L:      linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -6395,7 +6395,7 @@ S:	Maintained
 F:      arch/arm/mach-spear13xx/
 
 SPEAR3XX MACHINE SUPPORT
-M:      Viresh Kumar <viresh.kumar@st.com>
+M:     Viresh Kumar <viresh.linux@gmail.com>
 M:      Shiraz Hashim <shiraz.hashim@st.com>
 L:      spear-devel@list.st.com
 L:      linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
@@ -6406,7 +6406,7 @@ F:	arch/arm/mach-spear3xx/
 SPEAR6XX MACHINE SUPPORT
 M:      Rajeev Kumar <rajeev-dlh.kumar@st.com>
 M:      Shiraz Hashim <shiraz.hashim@st.com>
-M:      Viresh Kumar <viresh.kumar@st.com>
+M:     Viresh Kumar <viresh.linux@gmail.com>
 L:      spear-devel@list.st.com
 L:      linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 W:      http://www.st.com/spear
@@ -6414,7 +6414,7 @@ S:	Maintained
 F:      arch/arm/mach-spear6xx/
 
 SPEAR CLOCK FRAMEWORK SUPPORT
-M:      Viresh Kumar <viresh.kumar@st.com>
+M:     Viresh Kumar <viresh.linux@gmail.com>
 L:      spear-devel@list.st.com
 L:      linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 W:      http://www.st.com/spear
@@ -7421,7 +7421,7 @@ F:	include/linux/vlynq.h
 
 VME SUBSYSTEM
 M:      Martyn Welch <martyn.welch@ge.com>
-M:      Manohar Vanga <manohar.vanga@cern.ch>
+M:      Manohar Vanga <manohar.vanga@gmail.com>
 M:      Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 L:      devel@driverdev.osuosl.org
 S:      Maintained
diff --git a/arch/arm/boot/dts/spear1310-evb.dts b/arch/arm/boot/dts/spear1310-evb.dts
index 8314e4171884..dd4358bc26e2 100644
--- a/arch/arm/boot/dts/spear1310-evb.dts
+++ b/arch/arm/boot/dts/spear1310-evb.dts
@@ -1,7 +1,7 @@
 /*
  * DTS file for SPEAr1310 Evaluation Baord
  *
- * Copyright 2012 Viresh Kumar <viresh.kumar@st.com>
+ * Copyright 2012 Viresh Kumar <viresh.linux@gmail.com>
  *
  * The code contained herein is licensed under the GNU General Public
  * License. You may obtain a copy of the GNU General Public License
diff --git a/arch/arm/boot/dts/spear1310.dtsi b/arch/arm/boot/dts/spear1310.dtsi
index 9e61da404d57..419ea7413d23 100644
--- a/arch/arm/boot/dts/spear1310.dtsi
+++ b/arch/arm/boot/dts/spear1310.dtsi
@@ -1,7 +1,7 @@
 /*
  * DTS file for all SPEAr1310 SoCs
  *
- * Copyright 2012 Viresh Kumar <viresh.kumar@st.com>
+ * Copyright 2012 Viresh Kumar <viresh.linux@gmail.com>
  *
  * The code contained herein is licensed under the GNU General Public
  * License. You may obtain a copy of the GNU General Public License
diff --git a/arch/arm/boot/dts/spear1340-evb.dts b/arch/arm/boot/dts/spear1340-evb.dts
index 0d8472e5ab9f..c9a54e06fb68 100644
--- a/arch/arm/boot/dts/spear1340-evb.dts
+++ b/arch/arm/boot/dts/spear1340-evb.dts
@@ -1,7 +1,7 @@
 /*
  * DTS file for SPEAr1340 Evaluation Baord
  *
- * Copyright 2012 Viresh Kumar <viresh.kumar@st.com>
+ * Copyright 2012 Viresh Kumar <viresh.linux@gmail.com>
  *
  * The code contained herein is licensed under the GNU General Public
  * License. You may obtain a copy of the GNU General Public License
diff --git a/arch/arm/boot/dts/spear1340.dtsi b/arch/arm/boot/dts/spear1340.dtsi
index a26fc47a55e8..d71fe2a68f09 100644
--- a/arch/arm/boot/dts/spear1340.dtsi
+++ b/arch/arm/boot/dts/spear1340.dtsi
@@ -1,7 +1,7 @@
 /*
  * DTS file for all SPEAr1340 SoCs
  *
- * Copyright 2012 Viresh Kumar <viresh.kumar@st.com>
+ * Copyright 2012 Viresh Kumar <viresh.linux@gmail.com>
  *
  * The code contained herein is licensed under the GNU General Public
  * License. You may obtain a copy of the GNU General Public License
diff --git a/arch/arm/boot/dts/spear13xx.dtsi b/arch/arm/boot/dts/spear13xx.dtsi
index 1f8e1e1481df..10dcec7e7321 100644
--- a/arch/arm/boot/dts/spear13xx.dtsi
+++ b/arch/arm/boot/dts/spear13xx.dtsi
@@ -1,7 +1,7 @@
 /*
  * DTS file for all SPEAr13xx SoCs
  *
- * Copyright 2012 Viresh Kumar <viresh.kumar@st.com>
+ * Copyright 2012 Viresh Kumar <viresh.linux@gmail.com>
  *
  * The code contained herein is licensed under the GNU General Public
  * License. You may obtain a copy of the GNU General Public License
diff --git a/arch/arm/boot/dts/spear300-evb.dts b/arch/arm/boot/dts/spear300-evb.dts
index fc82b1a26458..d71b8d581e3d 100644
--- a/arch/arm/boot/dts/spear300-evb.dts
+++ b/arch/arm/boot/dts/spear300-evb.dts
@@ -1,7 +1,7 @@
 /*
  * DTS file for SPEAr300 Evaluation Baord
  *
- * Copyright 2012 Viresh Kumar <viresh.kumar@st.com>
+ * Copyright 2012 Viresh Kumar <viresh.linux@gmail.com>
  *
  * The code contained herein is licensed under the GNU General Public
  * License. You may obtain a copy of the GNU General Public License
diff --git a/arch/arm/boot/dts/spear300.dtsi b/arch/arm/boot/dts/spear300.dtsi
index 01c5e358fdb2..ed3627c116cc 100644
--- a/arch/arm/boot/dts/spear300.dtsi
+++ b/arch/arm/boot/dts/spear300.dtsi
@@ -1,7 +1,7 @@
 /*
  * DTS file for SPEAr300 SoC
  *
- * Copyright 2012 Viresh Kumar <viresh.kumar@st.com>
+ * Copyright 2012 Viresh Kumar <viresh.linux@gmail.com>
  *
  * The code contained herein is licensed under the GNU General Public
  * License. You may obtain a copy of the GNU General Public License
diff --git a/arch/arm/boot/dts/spear310-evb.dts b/arch/arm/boot/dts/spear310-evb.dts
index dc5e2d445a93..b00544e0cd5d 100644
--- a/arch/arm/boot/dts/spear310-evb.dts
+++ b/arch/arm/boot/dts/spear310-evb.dts
@@ -1,7 +1,7 @@
 /*
  * DTS file for SPEAr310 Evaluation Baord
  *
- * Copyright 2012 Viresh Kumar <viresh.kumar@st.com>
+ * Copyright 2012 Viresh Kumar <viresh.linux@gmail.com>
  *
  * The code contained herein is licensed under the GNU General Public
  * License. You may obtain a copy of the GNU General Public License
diff --git a/arch/arm/boot/dts/spear310.dtsi b/arch/arm/boot/dts/spear310.dtsi
index e47081c494d9..62fc4fb3e5f9 100644
--- a/arch/arm/boot/dts/spear310.dtsi
+++ b/arch/arm/boot/dts/spear310.dtsi
@@ -1,7 +1,7 @@
 /*
  * DTS file for SPEAr310 SoC
  *
- * Copyright 2012 Viresh Kumar <viresh.kumar@st.com>
+ * Copyright 2012 Viresh Kumar <viresh.linux@gmail.com>
  *
  * The code contained herein is licensed under the GNU General Public
  * License. You may obtain a copy of the GNU General Public License
diff --git a/arch/arm/boot/dts/spear320-evb.dts b/arch/arm/boot/dts/spear320-evb.dts
index 6308fa3bec1e..c13fd1f3b09f 100644
--- a/arch/arm/boot/dts/spear320-evb.dts
+++ b/arch/arm/boot/dts/spear320-evb.dts
@@ -1,7 +1,7 @@
 /*
  * DTS file for SPEAr320 Evaluation Baord
  *
- * Copyright 2012 Viresh Kumar <viresh.kumar@st.com>
+ * Copyright 2012 Viresh Kumar <viresh.linux@gmail.com>
  *
  * The code contained herein is licensed under the GNU General Public
  * License. You may obtain a copy of the GNU General Public License
diff --git a/arch/arm/boot/dts/spear320.dtsi b/arch/arm/boot/dts/spear320.dtsi
index 5372ca399b1f..1f49d69595a0 100644
--- a/arch/arm/boot/dts/spear320.dtsi
+++ b/arch/arm/boot/dts/spear320.dtsi
@@ -1,7 +1,7 @@
 /*
  * DTS file for SPEAr320 SoC
  *
- * Copyright 2012 Viresh Kumar <viresh.kumar@st.com>
+ * Copyright 2012 Viresh Kumar <viresh.linux@gmail.com>
  *
  * The code contained herein is licensed under the GNU General Public
  * License. You may obtain a copy of the GNU General Public License
diff --git a/arch/arm/boot/dts/spear3xx.dtsi b/arch/arm/boot/dts/spear3xx.dtsi
index 91072553963f..3a8bb5736928 100644
--- a/arch/arm/boot/dts/spear3xx.dtsi
+++ b/arch/arm/boot/dts/spear3xx.dtsi
@@ -1,7 +1,7 @@
 /*
  * DTS file for all SPEAr3xx SoCs
  *
- * Copyright 2012 Viresh Kumar <viresh.kumar@st.com>
+ * Copyright 2012 Viresh Kumar <viresh.linux@gmail.com>
  *
  * The code contained herein is licensed under the GNU General Public
  * License. You may obtain a copy of the GNU General Public License
diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h
index 7be54690aeec..e42cf597f6e6 100644
--- a/arch/arm/include/asm/futex.h
+++ b/arch/arm/include/asm/futex.h
@@ -19,6 +19,7 @@
         "       .long   1b, 4f, 2b, 4f\n"                       \
         "       .popsection\n"                                  \
         "       .pushsection .fixup,\"ax\"\n"                   \
+        "       .align  2\n"                                    \
         "4:     mov     %0, " err_reg "\n"                      \
         "       b       3b\n"                                   \
         "       .popsection"
diff --git a/arch/arm/include/asm/hardware/sp810.h b/arch/arm/include/asm/hardware/sp810.h
index e0d1c0cfa548..6b9b077d86b3 100644
--- a/arch/arm/include/asm/hardware/sp810.h
+++ b/arch/arm/include/asm/hardware/sp810.h
@@ -4,7 +4,7 @@
  * ARM PrimeXsys System Controller SP810 header file
  *
  * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 437f0c426517..0d1851ca6eb9 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -495,6 +495,7 @@ ENDPROC(__und_usr)
  * The out of line fixup for the ldrt above.
  */
         .pushsection .fixup, "ax"
+        .align  2
 4:      mov     pc, r9
         .popsection
         .pushsection __ex_table,"a"
diff --git a/arch/arm/kernel/kprobes-thumb.c b/arch/arm/kernel/kprobes-thumb.c
index 8f96ec778e8d..6123daf397a7 100644
--- a/arch/arm/kernel/kprobes-thumb.c
+++ b/arch/arm/kernel/kprobes-thumb.c
@@ -660,7 +660,7 @@ static const union decode_item t32_table_1111_100x[] = {
         /* LDRSB (literal)      1111 1001 x001 1111 xxxx xxxx xxxx xxxx */
         /* LDRH (literal)       1111 1000 x011 1111 xxxx xxxx xxxx xxxx */
         /* LDRSH (literal)      1111 1001 x011 1111 xxxx xxxx xxxx xxxx */
-        DECODE_EMULATEX (0xfe5f0000, 0xf81f0000, t32_simulate_ldr_literal,
+        DECODE_SIMULATEX(0xfe5f0000, 0xf81f0000, t32_simulate_ldr_literal,
                                                  REGS(PC, NOSPPCX, 0, 0, 0)),
 
         /* STRB (immediate)     1111 1000 0000 xxxx xxxx 1xxx xxxx xxxx */
diff --git a/arch/arm/mach-spear13xx/include/mach/debug-macro.S b/arch/arm/mach-spear13xx/include/mach/debug-macro.S
index ea1564609bd4..9e3ae6bfe50d 100644
--- a/arch/arm/mach-spear13xx/include/mach/debug-macro.S
+++ b/arch/arm/mach-spear13xx/include/mach/debug-macro.S
@@ -4,7 +4,7 @@
  * Debugging macro include header spear13xx machine family
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear13xx/include/mach/dma.h b/arch/arm/mach-spear13xx/include/mach/dma.h
index 383ab04dc6c9..d50bdb605925 100644
--- a/arch/arm/mach-spear13xx/include/mach/dma.h
+++ b/arch/arm/mach-spear13xx/include/mach/dma.h
@@ -4,7 +4,7 @@
  * DMA information for SPEAr13xx machine family
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear13xx/include/mach/generic.h b/arch/arm/mach-spear13xx/include/mach/generic.h
index 6d8c45b9f298..dac57fd0cdfd 100644
--- a/arch/arm/mach-spear13xx/include/mach/generic.h
+++ b/arch/arm/mach-spear13xx/include/mach/generic.h
@@ -4,7 +4,7 @@
  * spear13xx machine family generic header file
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear13xx/include/mach/gpio.h b/arch/arm/mach-spear13xx/include/mach/gpio.h
index cd6f4f86a56b..85f176311f63 100644
--- a/arch/arm/mach-spear13xx/include/mach/gpio.h
+++ b/arch/arm/mach-spear13xx/include/mach/gpio.h
@@ -4,7 +4,7 @@
  * GPIO macros for SPEAr13xx machine family
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear13xx/include/mach/irqs.h b/arch/arm/mach-spear13xx/include/mach/irqs.h
index f542a24aa5f2..271a62b4cd31 100644
--- a/arch/arm/mach-spear13xx/include/mach/irqs.h
+++ b/arch/arm/mach-spear13xx/include/mach/irqs.h
@@ -4,7 +4,7 @@
  * IRQ helper macros for spear13xx machine family
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear13xx/include/mach/spear.h b/arch/arm/mach-spear13xx/include/mach/spear.h
index 30c57ef72686..65f27def239b 100644
--- a/arch/arm/mach-spear13xx/include/mach/spear.h
+++ b/arch/arm/mach-spear13xx/include/mach/spear.h
@@ -4,7 +4,7 @@
  * spear13xx Machine family specific definition
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear13xx/include/mach/timex.h b/arch/arm/mach-spear13xx/include/mach/timex.h
index 31af3e8d976e..3a58b8284a6a 100644
--- a/arch/arm/mach-spear13xx/include/mach/timex.h
+++ b/arch/arm/mach-spear13xx/include/mach/timex.h
@@ -4,7 +4,7 @@
  * SPEAr3XX machine family specific timex definitions
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear13xx/include/mach/uncompress.h b/arch/arm/mach-spear13xx/include/mach/uncompress.h
index c7840896ae6e..70fe72f05dea 100644
--- a/arch/arm/mach-spear13xx/include/mach/uncompress.h
+++ b/arch/arm/mach-spear13xx/include/mach/uncompress.h
@@ -4,7 +4,7 @@
  * Serial port stubs for kernel decompress status messages
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear13xx/spear1310.c b/arch/arm/mach-spear13xx/spear1310.c
index fefd15b2f380..732d29bc7330 100644
--- a/arch/arm/mach-spear13xx/spear1310.c
+++ b/arch/arm/mach-spear13xx/spear1310.c
@@ -4,7 +4,7 @@
  * SPEAr1310 machine source file
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear13xx/spear1340.c b/arch/arm/mach-spear13xx/spear1340.c
index ee38cbc56869..81e4ed76ad06 100644
--- a/arch/arm/mach-spear13xx/spear1340.c
+++ b/arch/arm/mach-spear13xx/spear1340.c
@@ -4,7 +4,7 @@
  * SPEAr1340 machine source file
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear13xx/spear13xx.c b/arch/arm/mach-spear13xx/spear13xx.c
index 50b349ae863d..cf936b106e27 100644
--- a/arch/arm/mach-spear13xx/spear13xx.c
+++ b/arch/arm/mach-spear13xx/spear13xx.c
@@ -4,7 +4,7 @@
  * SPEAr13XX machines common source file
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear3xx/include/mach/debug-macro.S b/arch/arm/mach-spear3xx/include/mach/debug-macro.S
index 590519f10d6e..0a6381fad5d9 100644
--- a/arch/arm/mach-spear3xx/include/mach/debug-macro.S
+++ b/arch/arm/mach-spear3xx/include/mach/debug-macro.S
@@ -4,7 +4,7 @@
  * Debugging macro include header spear3xx machine family
  *
  * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar<viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear3xx/include/mach/generic.h b/arch/arm/mach-spear3xx/include/mach/generic.h
index 4a95b9453c2a..ce19113ca791 100644
--- a/arch/arm/mach-spear3xx/include/mach/generic.h
+++ b/arch/arm/mach-spear3xx/include/mach/generic.h
@@ -4,7 +4,7 @@
  * SPEAr3XX machine family generic header file
  *
  * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar<viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear3xx/include/mach/gpio.h b/arch/arm/mach-spear3xx/include/mach/gpio.h
index 451b2081bfc9..2ac74c6db7f1 100644
--- a/arch/arm/mach-spear3xx/include/mach/gpio.h
+++ b/arch/arm/mach-spear3xx/include/mach/gpio.h
@@ -4,7 +4,7 @@
  * GPIO macros for SPEAr3xx machine family
  *
  * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar<viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear3xx/include/mach/irqs.h b/arch/arm/mach-spear3xx/include/mach/irqs.h
index 51bd62a0254c..803de76f5f36 100644
--- a/arch/arm/mach-spear3xx/include/mach/irqs.h
+++ b/arch/arm/mach-spear3xx/include/mach/irqs.h
@@ -4,7 +4,7 @@
  * IRQ helper macros for SPEAr3xx machine family
  *
  * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear3xx/include/mach/misc_regs.h b/arch/arm/mach-spear3xx/include/mach/misc_regs.h
index 18e2ac576f25..6309bf68d6f8 100644
--- a/arch/arm/mach-spear3xx/include/mach/misc_regs.h
+++ b/arch/arm/mach-spear3xx/include/mach/misc_regs.h
@@ -4,7 +4,7 @@
  * Miscellaneous registers definitions for SPEAr3xx machine family
  *
  * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear3xx/include/mach/spear.h b/arch/arm/mach-spear3xx/include/mach/spear.h
index 51eb953148a9..8cca95193d4d 100644
--- a/arch/arm/mach-spear3xx/include/mach/spear.h
+++ b/arch/arm/mach-spear3xx/include/mach/spear.h
@@ -4,7 +4,7 @@
  * SPEAr3xx Machine family specific definition
  *
  * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear3xx/include/mach/timex.h b/arch/arm/mach-spear3xx/include/mach/timex.h
index a38cc9de876f..9f5d08bd0c44 100644
--- a/arch/arm/mach-spear3xx/include/mach/timex.h
+++ b/arch/arm/mach-spear3xx/include/mach/timex.h
@@ -4,7 +4,7 @@
  * SPEAr3XX machine family specific timex definitions
  *
  * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear3xx/include/mach/uncompress.h b/arch/arm/mach-spear3xx/include/mach/uncompress.h
index 53ba8bbc0dfa..b909b011f7c8 100644
--- a/arch/arm/mach-spear3xx/include/mach/uncompress.h
+++ b/arch/arm/mach-spear3xx/include/mach/uncompress.h
@@ -4,7 +4,7 @@
  * Serial port stubs for kernel decompress status messages
  *
  * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear3xx/spear300.c b/arch/arm/mach-spear3xx/spear300.c
index f74a05bdb829..0f882ecb7d81 100644
--- a/arch/arm/mach-spear3xx/spear300.c
+++ b/arch/arm/mach-spear3xx/spear300.c
@@ -4,7 +4,7 @@
  * SPEAr300 machine source file
  *
  * Copyright (C) 2009-2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear3xx/spear310.c b/arch/arm/mach-spear3xx/spear310.c
index 84dfb0900747..bbcf4571d361 100644
--- a/arch/arm/mach-spear3xx/spear310.c
+++ b/arch/arm/mach-spear3xx/spear310.c
@@ -4,7 +4,7 @@
  * SPEAr310 machine source file
  *
  * Copyright (C) 2009-2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear3xx/spear320.c b/arch/arm/mach-spear3xx/spear320.c
index a88fa841d29d..88d483bcd66a 100644
--- a/arch/arm/mach-spear3xx/spear320.c
+++ b/arch/arm/mach-spear3xx/spear320.c
@@ -4,7 +4,7 @@
  * SPEAr320 machine source file
  *
  * Copyright (C) 2009-2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear3xx/spear3xx.c b/arch/arm/mach-spear3xx/spear3xx.c
index f22419ed74a8..0f41bd1c47c3 100644
--- a/arch/arm/mach-spear3xx/spear3xx.c
+++ b/arch/arm/mach-spear3xx/spear3xx.c
@@ -4,7 +4,7 @@
  * SPEAr3XX machines common source file
  *
  * Copyright (C) 2009-2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear6xx/include/mach/gpio.h b/arch/arm/mach-spear6xx/include/mach/gpio.h
index 3a789dbb69f7..d42cefc0356d 100644
--- a/arch/arm/mach-spear6xx/include/mach/gpio.h
+++ b/arch/arm/mach-spear6xx/include/mach/gpio.h
@@ -4,7 +4,7 @@
  * GPIO macros for SPEAr6xx machine family
  *
  * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-spear6xx/include/mach/misc_regs.h b/arch/arm/mach-spear6xx/include/mach/misc_regs.h
index 179e45774b3a..c34acc201d34 100644
--- a/arch/arm/mach-spear6xx/include/mach/misc_regs.h
+++ b/arch/arm/mach-spear6xx/include/mach/misc_regs.h
@@ -4,7 +4,7 @@
  * Miscellaneous registers definitions for SPEAr6xx machine family
  *
  * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 9c74ac545849..1509a3cb5833 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -580,43 +580,12 @@ static void ux500_uart0_reset(void)
         udelay(1);
 }
 
-/* This needs to be referenced by callbacks */
-struct pinctrl *u0_p;
-struct pinctrl_state *u0_def;
-struct pinctrl_state *u0_sleep;
-
-static void ux500_uart0_init(void)
-{
-        int ret;
-
-        if (IS_ERR(u0_p) || IS_ERR(u0_def))
-                return;
-
-        ret = pinctrl_select_state(u0_p, u0_def);
-        if (ret)
-                pr_err("could not set UART0 defstate\n");
-}
-
-static void ux500_uart0_exit(void)
-{
-        int ret;
-
-        if (IS_ERR(u0_p) || IS_ERR(u0_sleep))
-                return;
-
-        ret = pinctrl_select_state(u0_p, u0_sleep);
-        if (ret)
-                pr_err("could not set UART0 idlestate\n");
-}
-
 static struct amba_pl011_data uart0_plat = {
 #ifdef CONFIG_STE_DMA40
         .dma_filter = stedma40_filter,
         .dma_rx_param = &uart0_dma_cfg_rx,
         .dma_tx_param = &uart0_dma_cfg_tx,
 #endif
-        .init = ux500_uart0_init,
-        .exit = ux500_uart0_exit,
         .reset = ux500_uart0_reset,
 };
 
@@ -638,28 +607,7 @@ static struct amba_pl011_data uart2_plat = {
 
 static void __init mop500_uart_init(struct device *parent)
 {
-        struct amba_device *uart0_device;
-
-        uart0_device = db8500_add_uart0(parent, &uart0_plat);
-        if (uart0_device) {
-                u0_p = pinctrl_get(&uart0_device->dev);
-                if (IS_ERR(u0_p))
-                        dev_err(&uart0_device->dev,
-                                "could not get UART0 pinctrl\n");
-                else {
-                        u0_def = pinctrl_lookup_state(u0_p,
-                                                      PINCTRL_STATE_DEFAULT);
-                        if (IS_ERR(u0_def)) {
-                                dev_err(&uart0_device->dev,
-                                        "could not get UART0 defstate\n");
-                        }
-                        u0_sleep = pinctrl_lookup_state(u0_p,
-                                                        PINCTRL_STATE_SLEEP);
-                        if (IS_ERR(u0_sleep))
-                                dev_err(&uart0_device->dev,
-                                        "could not get UART0 idlestate\n");
-                }
-        }
+        db8500_add_uart0(parent, &uart0_plat);
         db8500_add_uart1(parent, &uart1_plat);
         db8500_add_uart2(parent, &uart2_plat);
 }
diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
index 62135849f48b..c641fb685017 100644
--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c
@@ -762,6 +762,11 @@ b_epilogue:
                         update_on_xread(ctx);
                         emit(ARM_MOV_R(r_A, r_X), ctx);
                         break;
+                case BPF_S_ANC_ALU_XOR_X:
+                        /* A ^= X */
+                        update_on_xread(ctx);
+                        emit(ARM_EOR_R(r_A, r_A, r_X), ctx);
+                        break;
                 case BPF_S_ANC_PROTOCOL:
                         /* A = ntohs(skb->protocol) */
                         ctx->seen |= SEEN_SKB;
diff --git a/arch/arm/net/bpf_jit_32.h b/arch/arm/net/bpf_jit_32.h
index 99ae5e3f46d2..7fa2f7d3cb90 100644
--- a/arch/arm/net/bpf_jit_32.h
+++ b/arch/arm/net/bpf_jit_32.h
@@ -68,6 +68,8 @@
 #define ARM_INST_CMP_R          0x01500000
 #define ARM_INST_CMP_I          0x03500000
 
+#define ARM_INST_EOR_R          0x00200000
+
 #define ARM_INST_LDRB_I         0x05d00000
 #define ARM_INST_LDRB_R         0x07d00000
 #define ARM_INST_LDRH_I         0x01d000b0
@@ -132,6 +134,8 @@
 #define ARM_CMP_R(rn, rm)       _AL3_R(ARM_INST_CMP, 0, rn, rm)
 #define ARM_CMP_I(rn, imm)      _AL3_I(ARM_INST_CMP, 0, rn, imm)
 
+#define ARM_EOR_R(rd, rn, rm)   _AL3_R(ARM_INST_EOR, rd, rn, rm)
+
 #define ARM_LDR_I(rt, rn, off)  (ARM_INST_LDR_I | (rt) << 12 | (rn) << 16 \
                                  | (off))
 #define ARM_LDRB_I(rt, rn, off) (ARM_INST_LDRB_I | (rt) << 12 | (rn) << 16 \
diff --git a/arch/arm/plat-spear/include/plat/debug-macro.S b/arch/arm/plat-spear/include/plat/debug-macro.S
index ab3de721c5db..75b05ad0fbad 100644
--- a/arch/arm/plat-spear/include/plat/debug-macro.S
+++ b/arch/arm/plat-spear/include/plat/debug-macro.S
@@ -4,7 +4,7 @@
  * Debugging macro include header for spear platform
  *
  * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/plat-spear/include/plat/pl080.h b/arch/arm/plat-spear/include/plat/pl080.h
index e14a3e4932f9..2bc6b54460a8 100644
--- a/arch/arm/plat-spear/include/plat/pl080.h
+++ b/arch/arm/plat-spear/include/plat/pl080.h
@@ -4,7 +4,7 @@
  * DMAC pl080 definitions for SPEAr platform
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/plat-spear/include/plat/shirq.h b/arch/arm/plat-spear/include/plat/shirq.h
index 03ed8b585dcf..88a7fbd24793 100644
--- a/arch/arm/plat-spear/include/plat/shirq.h
+++ b/arch/arm/plat-spear/include/plat/shirq.h
@@ -4,7 +4,7 @@
  * SPEAr platform shared irq layer header file
  *
  * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/plat-spear/include/plat/timex.h b/arch/arm/plat-spear/include/plat/timex.h
index 914d09dd50fd..ef95e5b780bd 100644
--- a/arch/arm/plat-spear/include/plat/timex.h
+++ b/arch/arm/plat-spear/include/plat/timex.h
@@ -4,7 +4,7 @@
  * SPEAr platform specific timex definitions
  *
  * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/plat-spear/include/plat/uncompress.h b/arch/arm/plat-spear/include/plat/uncompress.h
index 6dd455bafdfd..2ce6cb17a98b 100644
--- a/arch/arm/plat-spear/include/plat/uncompress.h
+++ b/arch/arm/plat-spear/include/plat/uncompress.h
@@ -4,7 +4,7 @@
  * Serial port stubs for kernel decompress status messages
  *
  * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/plat-spear/pl080.c b/arch/arm/plat-spear/pl080.c
index a56a067717c1..12cf27f935f9 100644
--- a/arch/arm/plat-spear/pl080.c
+++ b/arch/arm/plat-spear/pl080.c
@@ -4,7 +4,7 @@
  * DMAC pl080 definitions for SPEAr platform
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/plat-spear/restart.c b/arch/arm/plat-spear/restart.c
index ea0a61302b7e..4f990115b1bd 100644
--- a/arch/arm/plat-spear/restart.c
+++ b/arch/arm/plat-spear/restart.c
@@ -4,7 +4,7 @@
  * SPEAr platform specific restart functions
  *
  * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/arm/plat-spear/shirq.c b/arch/arm/plat-spear/shirq.c
index 961fb7261243..853e891e1184 100644
--- a/arch/arm/plat-spear/shirq.c
+++ b/arch/arm/plat-spear/shirq.c
@@ -4,7 +4,7 @@
  * SPEAr platform shared irq layer source file
  *
  * Copyright (C) 2009 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c
index 68d651081bd3..d0b1607f2711 100644
--- a/arch/h8300/kernel/setup.c
+++ b/arch/h8300/kernel/setup.c
@@ -35,6 +35,7 @@
 #include <asm/setup.h>
 #include <asm/irq.h>
 #include <asm/pgtable.h>
+#include <asm/sections.h>
 
 #if defined(__H8300H__)
 #define CPU "H8/300H"
@@ -54,7 +55,6 @@ unsigned long memory_end;
 
 char __initdata command_line[COMMAND_LINE_SIZE];
 
-extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end;
 extern int _ramstart, _ramend;
 extern char _target_name[];
 extern void h8300_gpio_init(void);
@@ -119,9 +119,9 @@ void __init setup_arch(char **cmdline_p)
             memory_end = CONFIG_BLKDEV_RESERVE_ADDRESS; 
 #endif
 
-        init_mm.start_code = (unsigned long) &_stext;
-        init_mm.end_code = (unsigned long) &_etext;
-        init_mm.end_data = (unsigned long) &_edata;
+        init_mm.start_code = (unsigned long) _stext;
+        init_mm.end_code = (unsigned long) _etext;
+        init_mm.end_data = (unsigned long) _edata;
         init_mm.brk = (unsigned long) 0; 
 
 #if (defined(CONFIG_H8300H_SIM) || defined(CONFIG_H8S_SIM)) && defined(CONFIG_GDB_MAGICPRINT)
@@ -134,15 +134,12 @@ void __init setup_arch(char **cmdline_p)
         printk(KERN_INFO "H8/300 series support by Yoshinori Sato <ysato@users.sourceforge.jp>\n");
 
 #ifdef DEBUG
-        printk(KERN_DEBUG "KERNEL -> TEXT=0x%06x-0x%06x DATA=0x%06x-0x%06x "
-                "BSS=0x%06x-0x%06x\n", (int) &_stext, (int) &_etext,
-                (int) &_sdata, (int) &_edata,
-                (int) &_sbss, (int) &_ebss);
-        printk(KERN_DEBUG "KERNEL -> ROMFS=0x%06x-0x%06x MEM=0x%06x-0x%06x "
-                "STACK=0x%06x-0x%06x\n",
-               (int) &_ebss, (int) memory_start,
-                (int) memory_start, (int) memory_end,
-                (int) memory_end, (int) &_ramend);
+        printk(KERN_DEBUG "KERNEL -> TEXT=0x%p-0x%p DATA=0x%p-0x%p "
+                "BSS=0x%p-0x%p\n", _stext, _etext, _sdata, _edata, __bss_start,
+                __bss_stop);
+        printk(KERN_DEBUG "KERNEL -> ROMFS=0x%p-0x%06lx MEM=0x%06lx-0x%06lx "
+                "STACK=0x%06lx-0x%p\n", __bss_stop, memory_start, memory_start,
+                memory_end, memory_end, &_ramend);
 #endif
 
 #ifdef CONFIG_DEFAULT_CMDLINE
diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c
index 973369c32a95..981e25094b1a 100644
--- a/arch/h8300/mm/init.c
+++ b/arch/h8300/mm/init.c
@@ -36,6 +36,7 @@
 #include <asm/segment.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
+#include <asm/sections.h>
 
 #undef DEBUG
 
@@ -123,7 +124,6 @@ void __init mem_init(void)
         int codek = 0, datak = 0, initk = 0;
         /* DAVIDM look at setup memory map generically with reserved area */
         unsigned long tmp;
-        extern char _etext, _stext, _sdata, _ebss, __init_begin, __init_end;
         extern unsigned long  _ramend, _ramstart;
         unsigned long len = &_ramend - &_ramstart;
         unsigned long start_mem = memory_start; /* DAVIDM - these must start at end of kernel */
@@ -142,9 +142,9 @@ void __init mem_init(void)
         /* this will put all memory onto the freelists */
         totalram_pages = free_all_bootmem();
 
-        codek = (&_etext - &_stext) >> 10;
-        datak = (&_ebss - &_sdata) >> 10;
-        initk = (&__init_begin - &__init_end) >> 10;
+        codek = (_etext - _stext) >> 10;
+        datak = (__bss_stop - _sdata) >> 10;
+        initk = (__init_begin - __init_end) >> 10;
 
         tmp = nr_free_pages() << PAGE_SHIFT;
         printk(KERN_INFO "Memory available: %luk/%luk RAM, %luk/%luk ROM (%dk kernel code, %dk data)\n",
@@ -178,22 +178,21 @@ free_initmem(void)
 {
 #ifdef CONFIG_RAMKERNEL
         unsigned long addr;
-        extern char __init_begin, __init_end;
 /*
  *      the following code should be cool even if these sections
  *      are not page aligned.
  */
-        addr = PAGE_ALIGN((unsigned long)(&__init_begin));
+        addr = PAGE_ALIGN((unsigned long)(__init_begin));
         /* next to check that the page we free is not a partial page */
-        for (; addr + PAGE_SIZE < (unsigned long)(&__init_end); addr +=PAGE_SIZE) {
+        for (; addr + PAGE_SIZE < (unsigned long)__init_end; addr +=PAGE_SIZE) {
                 ClearPageReserved(virt_to_page(addr));
                 init_page_count(virt_to_page(addr));
                 free_page(addr);
                 totalram_pages++;
         }
         printk(KERN_INFO "Freeing unused kernel memory: %ldk freed (0x%x - 0x%x)\n",
-                        (addr - PAGE_ALIGN((long) &__init_begin)) >> 10,
-                        (int)(PAGE_ALIGN((unsigned long)(&__init_begin))),
+                        (addr - PAGE_ALIGN((long) __init_begin)) >> 10,
+                        (int)(PAGE_ALIGN((unsigned long)__init_begin)),
                         (int)(addr - PAGE_SIZE));
 #endif
 }
diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c
index 36f957f31842..8733a86ad52e 100644
--- a/arch/powerpc/platforms/pseries/nvram.c
+++ b/arch/powerpc/platforms/pseries/nvram.c
@@ -68,9 +68,7 @@ static const char *pseries_nvram_os_partitions[] = {
 };
 
 static void oops_to_nvram(struct kmsg_dumper *dumper,
-                enum kmsg_dump_reason reason,
-                const char *old_msgs, unsigned long old_len,
-                const char *new_msgs, unsigned long new_len);
+                          enum kmsg_dump_reason reason);
 
 static struct kmsg_dumper nvram_kmsg_dumper = {
         .dump = oops_to_nvram
@@ -504,28 +502,6 @@ int __init pSeries_nvram_init(void)
 }
 
 /*
- * Try to capture the last capture_len bytes of the printk buffer.  Return
- * the amount actually captured.
- */
-static size_t capture_last_msgs(const char *old_msgs, size_t old_len,
-                                const char *new_msgs, size_t new_len,
-                                char *captured, size_t capture_len)
-{
-        if (new_len >= capture_len) {
-                memcpy(captured, new_msgs + (new_len - capture_len),
-                                                                capture_len);
-                return capture_len;
-        } else {
-                /* Grab the end of old_msgs. */
-                size_t old_tail_len = min(old_len, capture_len - new_len);
-                memcpy(captured, old_msgs + (old_len - old_tail_len),
-                                                                old_tail_len);
-                memcpy(captured + old_tail_len, new_msgs, new_len);
-                return old_tail_len + new_len;
-        }
-}
-
-/*
  * Are we using the ibm,rtas-log for oops/panic reports?  And if so,
  * would logging this oops/panic overwrite an RTAS event that rtas_errd
  * hasn't had a chance to read and process?  Return 1 if so, else 0.
@@ -541,27 +517,6 @@ static int clobbering_unread_rtas_event(void)
                                                 NVRAM_RTAS_READ_TIMEOUT);
 }
 
-/* Squeeze out each line's <n> severity prefix. */
-static size_t elide_severities(char *buf, size_t len)
-{
-        char *in, *out, *buf_end = buf + len;
-        /* Assume a <n> at the very beginning marks the start of a line. */
-        int newline = 1;
-
-        in = out = buf;
-        while (in < buf_end) {
-                if (newline && in+3 <= buf_end &&
-                                *in == '<' && isdigit(in[1]) && in[2] == '>') {
-                        in += 3;
-                        newline = 0;
-                } else {
-                        newline = (*in == '\n');
-                        *out++ = *in++;
-                }
-        }
-        return out - buf;
-}
-
 /* Derived from logfs_compress() */
 static int nvram_compress(const void *in, void *out, size_t inlen,
                                                         size_t outlen)
@@ -619,9 +574,7 @@ static int zip_oops(size_t text_len)
  * partition.  If that's too much, go back and capture uncompressed text.
  */
 static void oops_to_nvram(struct kmsg_dumper *dumper,
-                enum kmsg_dump_reason reason,
-                const char *old_msgs, unsigned long old_len,
-                const char *new_msgs, unsigned long new_len)
+                          enum kmsg_dump_reason reason)
 {
         static unsigned int oops_count = 0;
         static bool panicking = false;
@@ -660,14 +613,14 @@ static void oops_to_nvram(struct kmsg_dumper *dumper,
                 return;
 
         if (big_oops_buf) {
-                text_len = capture_last_msgs(old_msgs, old_len,
-                        new_msgs, new_len, big_oops_buf, big_oops_buf_sz);
-                text_len = elide_severities(big_oops_buf, text_len);
+                kmsg_dump_get_buffer(dumper, false,
+                                     big_oops_buf, big_oops_buf_sz, &text_len);
                 rc = zip_oops(text_len);
         }
         if (rc != 0) {
-                text_len = capture_last_msgs(old_msgs, old_len,
-                                new_msgs, new_len, oops_data, oops_data_sz);
+                kmsg_dump_rewind(dumper);
+                kmsg_dump_get_buffer(dumper, true,
+                                     oops_data, oops_data_sz, &text_len);
                 err_type = ERR_TYPE_KERNEL_PANIC;
                 *oops_len = (u16) text_len;
         }
diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
index 43876f16caf1..cb00ccc7d571 100644
--- a/arch/x86/include/asm/pgtable-3level.h
+++ b/arch/x86/include/asm/pgtable-3level.h
@@ -47,16 +47,26 @@ static inline void native_set_pte(pte_t *ptep, pte_t pte)
  * they can run pmd_offset_map_lock or pmd_trans_huge or other pmd
  * operations.
  *
- * Without THP if the mmap_sem is hold for reading, the
- * pmd can only transition from null to not null while pmd_read_atomic runs.
- * So there's no need of literally reading it atomically.
+ * Without THP if the mmap_sem is hold for reading, the pmd can only
+ * transition from null to not null while pmd_read_atomic runs. So
+ * we can always return atomic pmd values with this function.
  *
  * With THP if the mmap_sem is hold for reading, the pmd can become
- * THP or null or point to a pte (and in turn become "stable") at any
- * time under pmd_read_atomic, so it's mandatory to read it atomically
- * with cmpxchg8b.
+ * trans_huge or none or point to a pte (and in turn become "stable")
+ * at any time under pmd_read_atomic. We could read it really
+ * atomically here with a atomic64_read for the THP enabled case (and
+ * it would be a whole lot simpler), but to avoid using cmpxchg8b we
+ * only return an atomic pmdval if the low part of the pmdval is later
+ * found stable (i.e. pointing to a pte). And we're returning a none
+ * pmdval if the low part of the pmd is none. In some cases the high
+ * and low part of the pmdval returned may not be consistent if THP is
+ * enabled (the low part may point to previously mapped hugepage,
+ * while the high part may point to a more recently mapped hugepage),
+ * but pmd_none_or_trans_huge_or_clear_bad() only needs the low part
+ * of the pmd to be read atomically to decide if the pmd is unstable
+ * or not, with the only exception of when the low part of the pmd is
+ * zero in which case we return a none pmd.
  */
-#ifndef CONFIG_TRANSPARENT_HUGEPAGE
 static inline pmd_t pmd_read_atomic(pmd_t *pmdp)
 {
         pmdval_t ret;
@@ -74,12 +84,6 @@ static inline pmd_t pmd_read_atomic(pmd_t *pmdp)
 
         return (pmd_t) { ret };
 }
-#else /* CONFIG_TRANSPARENT_HUGEPAGE */
-static inline pmd_t pmd_read_atomic(pmd_t *pmdp)
-{
-        return (pmd_t) { atomic64_read((atomic64_t *)pmdp) };
-}
-#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 
 static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
 {
diff --git a/arch/x86/platform/mrst/early_printk_mrst.c b/arch/x86/platform/mrst/early_printk_mrst.c
index 3c6e328483c7..028454f0c3a5 100644
--- a/arch/x86/platform/mrst/early_printk_mrst.c
+++ b/arch/x86/platform/mrst/early_printk_mrst.c
@@ -110,19 +110,16 @@ static struct kmsg_dumper dw_dumper;
 static int dumper_registered;
 
 static void dw_kmsg_dump(struct kmsg_dumper *dumper,
-                        enum kmsg_dump_reason reason,
-                        const char *s1, unsigned long l1,
-                        const char *s2, unsigned long l2)
+                         enum kmsg_dump_reason reason)
 {
-        int i;
+        static char line[1024];
+        size_t len;
 
         /* When run to this, we'd better re-init the HW */
         mrst_early_console_init();
 
-        for (i = 0; i < l1; i++)
-                early_mrst_console.write(&early_mrst_console, s1 + i, 1);
-        for (i = 0; i < l2; i++)
-                early_mrst_console.write(&early_mrst_console, s2 + i, 1);
+        while (kmsg_dump_get_line(dumper, true, line, sizeof(line), &len))
+                early_mrst_console.write(&early_mrst_console, line, len);
 }
 
 /* Set the ratio rate to 115200, 8n1, IRQ disabled */
diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile
index 7608559de93a..f973754ddf90 100644
--- a/arch/xtensa/Makefile
+++ b/arch/xtensa/Makefile
@@ -68,8 +68,8 @@ endif
 
 # Only build variant and/or platform if it includes a Makefile
 
-buildvar := $(shell test -a $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/)
-buildplf := $(shell test -a $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/)
+buildvar := $(shell test -e $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/)
+buildplf := $(shell test -e $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/)
 
 # Find libgcc.a
 
diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S
index 88ecea3facb4..ee2e2089483d 100644
--- a/arch/xtensa/kernel/vmlinux.lds.S
+++ b/arch/xtensa/kernel/vmlinux.lds.S
@@ -83,7 +83,6 @@ SECTIONS
 
   _text = .;
   _stext = .;
-  _ftext = .;
 
   .text :
   {
@@ -112,7 +111,7 @@ SECTIONS
   EXCEPTION_TABLE(16)
   /* Data section */
 
-  _fdata = .;
+  _sdata = .;
   RW_DATA_SECTION(XCHAL_ICACHE_LINESIZE, PAGE_SIZE, THREAD_SIZE)
   _edata = .;
 
diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c
index ba150e5de2eb..db955179da2d 100644
--- a/arch/xtensa/mm/init.c
+++ b/arch/xtensa/mm/init.c
@@ -26,11 +26,7 @@
 
 #include <asm/bootparam.h>
 #include <asm/page.h>
-
-/* References to section boundaries */
-
-extern char _ftext, _etext, _fdata, _edata, _rodata_end;
-extern char __init_begin, __init_end;
+#include <asm/sections.h>
 
 /*
  * mem_reserve(start, end, must_exist)
@@ -197,9 +193,9 @@ void __init mem_init(void)
                         reservedpages++;
         }
 
-        codesize =  (unsigned long) &_etext - (unsigned long) &_ftext;
-        datasize =  (unsigned long) &_edata - (unsigned long) &_fdata;
-        initsize =  (unsigned long) &__init_end - (unsigned long) &__init_begin;
+        codesize =  (unsigned long) _etext - (unsigned long) _stext;
+        datasize =  (unsigned long) _edata - (unsigned long) _sdata;
+        initsize =  (unsigned long) __init_end - (unsigned long) __init_begin;
 
         printk("Memory: %luk/%luk available (%ldk kernel code, %ldk reserved, "
                "%ldk data, %ldk init %ldk highmem)\n",
@@ -237,7 +233,7 @@ void free_initrd_mem(unsigned long start, unsigned long end)
 
 void free_initmem(void)
 {
-        free_reserved_mem(&__init_begin, &__init_end);
-        printk("Freeing unused kernel memory: %dk freed\n",
-               (&__init_end - &__init_begin) >> 10);
+        free_reserved_mem(__init_begin, __init_end);
+        printk("Freeing unused kernel memory: %zuk freed\n",
+               (__init_end - __init_begin) >> 10);
 }
diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index 3239517f4d90..ac6a5beb28f3 100644
--- a/drivers/ata/pata_arasan_cf.c
+++ b/drivers/ata/pata_arasan_cf.c
@@ -4,7 +4,7 @@
  * Arasan Compact Flash host controller source file
  *
  * Copyright (C) 2011 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
@@ -959,7 +959,7 @@ static struct platform_driver arasan_cf_driver = {
 
 module_platform_driver(arasan_cf_driver);
 
-MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");
+MODULE_AUTHOR("Viresh Kumar <viresh.linux@gmail.com>");
 MODULE_DESCRIPTION("Arasan ATA Compact Flash driver");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:" DRIVER_NAME);
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 1b1cbb571d38..dcb8a6e48692 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -100,7 +100,7 @@ static void driver_deferred_probe_add(struct device *dev)
         mutex_lock(&deferred_probe_mutex);
         if (list_empty(&dev->p->deferred_probe)) {
                 dev_dbg(dev, "Added to deferred list\n");
-                list_add(&dev->p->deferred_probe, &deferred_probe_pending_list);
+                list_add_tail(&dev->p->deferred_probe, &deferred_probe_pending_list);
         }
         mutex_unlock(&deferred_probe_mutex);
 }
diff --git a/drivers/clk/spear/clk-aux-synth.c b/drivers/clk/spear/clk-aux-synth.c
index af34074e702b..6756e7c3bc07 100644
--- a/drivers/clk/spear/clk-aux-synth.c
+++ b/drivers/clk/spear/clk-aux-synth.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/drivers/clk/spear/clk-frac-synth.c b/drivers/clk/spear/clk-frac-synth.c
index 4dbdb3fe18e0..958aa3ad1d60 100644
--- a/drivers/clk/spear/clk-frac-synth.c
+++ b/drivers/clk/spear/clk-frac-synth.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/drivers/clk/spear/clk-gpt-synth.c b/drivers/clk/spear/clk-gpt-synth.c
index b471c9762a97..1afc18c4effc 100644
--- a/drivers/clk/spear/clk-gpt-synth.c
+++ b/drivers/clk/spear/clk-gpt-synth.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/drivers/clk/spear/clk-vco-pll.c b/drivers/clk/spear/clk-vco-pll.c
index dcd4bdf4b0d9..5f1b6badeb15 100644
--- a/drivers/clk/spear/clk-vco-pll.c
+++ b/drivers/clk/spear/clk-vco-pll.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/drivers/clk/spear/clk.c b/drivers/clk/spear/clk.c
index 376d4e5ff326..7cd63788d546 100644
--- a/drivers/clk/spear/clk.c
+++ b/drivers/clk/spear/clk.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/drivers/clk/spear/clk.h b/drivers/clk/spear/clk.h
index 3321c46a071c..931737677dfa 100644
--- a/drivers/clk/spear/clk.h
+++ b/drivers/clk/spear/clk.h
@@ -2,7 +2,7 @@
  * Clock framework definitions for SPEAr platform
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/drivers/clk/spear/spear1310_clock.c b/drivers/clk/spear/spear1310_clock.c
index 42b68df9aeef..8f05652d53e6 100644
--- a/drivers/clk/spear/spear1310_clock.c
+++ b/drivers/clk/spear/spear1310_clock.c
@@ -4,7 +4,7 @@
  * SPEAr1310 machine clock framework source file
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/drivers/clk/spear/spear1340_clock.c b/drivers/clk/spear/spear1340_clock.c
index f130919d5bf8..e3ea72162236 100644
--- a/drivers/clk/spear/spear1340_clock.c
+++ b/drivers/clk/spear/spear1340_clock.c
@@ -4,7 +4,7 @@
  * SPEAr1340 machine clock framework source file
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/drivers/clk/spear/spear3xx_clock.c b/drivers/clk/spear/spear3xx_clock.c
index 440bb3e4c971..01dd6daff2a1 100644
--- a/drivers/clk/spear/spear3xx_clock.c
+++ b/drivers/clk/spear/spear3xx_clock.c
@@ -2,7 +2,7 @@
  * SPEAr3xx machines clock framework source file
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/drivers/clk/spear/spear6xx_clock.c b/drivers/clk/spear/spear6xx_clock.c
index f9a20b382304..554d64b062a1 100644
--- a/drivers/clk/spear/spear6xx_clock.c
+++ b/drivers/clk/spear/spear6xx_clock.c
@@ -2,7 +2,7 @@
  * SPEAr6xx machines clock framework source file
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index e23dc82d43ac..721296157577 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -1626,4 +1626,4 @@ module_exit(dw_exit);
 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("Synopsys DesignWare DMA Controller driver");
 MODULE_AUTHOR("Haavard Skinnemoen (Atmel)");
-MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");
+MODULE_AUTHOR("Viresh Kumar <viresh.linux@gmail.com>");
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index fb4f4990f5eb..1dc2a4ad0026 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -815,8 +815,6 @@ static int sdma_request_channel(struct sdma_channel *sdmac)
 
         init_completion(&sdmac->done);
 
-        sdmac->buf_tail = 0;
-
         return 0;
 out:
 
@@ -927,6 +925,8 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg(
 
         sdmac->flags = 0;
 
+        sdmac->buf_tail = 0;
+
         dev_dbg(sdma->dev, "setting up %d entries for channel %d.\n",
                         sg_len, channel);
 
@@ -1027,6 +1027,8 @@ static struct dma_async_tx_descriptor *sdma_prep_dma_cyclic(
 
         sdmac->status = DMA_IN_PROGRESS;
 
+        sdmac->buf_tail = 0;
+
         sdmac->flags |= IMX_DMA_SG_LOOP;
         sdmac->direction = direction;
         ret = sdma_load_context(sdmac);
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index cbcc28e79be6..e4feba6b03c0 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -392,6 +392,8 @@ struct pl330_req {
         struct pl330_reqcfg *cfg;
         /* Pointer to first xfer in the request. */
         struct pl330_xfer *x;
+        /* Hook to attach to DMAC's list of reqs with due callback */
+        struct list_head rqd;
 };
 
 /*
@@ -461,8 +463,6 @@ struct _pl330_req {
         /* Number of bytes taken to setup MC for the req */
         u32 mc_len;
         struct pl330_req *r;
-        /* Hook to attach to DMAC's list of reqs with due callback */
-        struct list_head rqd;
 };
 
 /* ToBeDone for tasklet */
@@ -1683,7 +1683,7 @@ static void pl330_dotask(unsigned long data)
 /* Returns 1 if state was updated, 0 otherwise */
 static int pl330_update(const struct pl330_info *pi)
 {
-        struct _pl330_req *rqdone;
+        struct pl330_req *rqdone, *tmp;
         struct pl330_dmac *pl330;
         unsigned long flags;
         void __iomem *regs;
@@ -1750,7 +1750,10 @@ static int pl330_update(const struct pl330_info *pi)
                         if (active == -1) /* Aborted */
                                 continue;
 
-                        rqdone = &thrd->req[active];
+                        /* Detach the req */
+                        rqdone = thrd->req[active].r;
+                        thrd->req[active].r = NULL;
+
                         mark_free(thrd, active);
 
                         /* Get going again ASAP */
@@ -1762,20 +1765,11 @@ static int pl330_update(const struct pl330_info *pi)
         }
 
         /* Now that we are in no hurry, do the callbacks */
-        while (!list_empty(&pl330->req_done)) {
-                struct pl330_req *r;
-
-                rqdone = container_of(pl330->req_done.next,
-                                        struct _pl330_req, rqd);
-
-                list_del_init(&rqdone->rqd);
-
-                /* Detach the req */
-                r = rqdone->r;
-                rqdone->r = NULL;
+        list_for_each_entry_safe(rqdone, tmp, &pl330->req_done, rqd) {
+                list_del(&rqdone->rqd);
 
                 spin_unlock_irqrestore(&pl330->lock, flags);
-                _callback(r, PL330_ERR_NONE);
+                _callback(rqdone, PL330_ERR_NONE);
                 spin_lock_irqsave(&pl330->lock, flags);
         }
 
@@ -2321,7 +2315,7 @@ static void pl330_tasklet(unsigned long data)
         /* Pick up ripe tomatoes */
         list_for_each_entry_safe(desc, _dt, &pch->work_list, node)
                 if (desc->status == DONE) {
-                        if (pch->cyclic)
+                        if (!pch->cyclic)
                                 dma_cookie_complete(&desc->txd);
                         list_move_tail(&desc->node, &list);
                 }
@@ -2539,7 +2533,7 @@ static inline void _init_desc(struct dma_pl330_desc *desc)
 }
 
 /* Returns the number of descriptors added to the DMAC pool */
-int add_desc(struct dma_pl330_dmac *pdmac, gfp_t flg, int count)
+static int add_desc(struct dma_pl330_dmac *pdmac, gfp_t flg, int count)
 {
         struct dma_pl330_desc *desc;
         unsigned long flags;
diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
index 23416e443765..a4ed30bd9a41 100644
--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -116,8 +116,8 @@ const char *max8997_extcon_cable[] = {
         [5] = "Charge-downstream",
         [6] = "MHL",
         [7] = "Dock-desk",
-        [7] = "Dock-card",
-        [8] = "JIG",
+        [8] = "Dock-card",
+        [9] = "JIG",
 
         NULL,
 };
@@ -514,6 +514,7 @@ static int __devexit max8997_muic_remove(struct platform_device *pdev)
 
         extcon_dev_unregister(info->edev);
 
+        kfree(info->edev);
         kfree(info);
 
         return 0;
diff --git a/drivers/extcon/extcon_class.c b/drivers/extcon/extcon_class.c
index f598a700ec15..159aeb07b3ba 100644
--- a/drivers/extcon/extcon_class.c
+++ b/drivers/extcon/extcon_class.c
@@ -762,7 +762,7 @@ int extcon_dev_register(struct extcon_dev *edev, struct device *dev)
 #if defined(CONFIG_ANDROID)
         if (switch_class)
                 ret = class_compat_create_link(switch_class, edev->dev,
-                                               dev);
+                                               NULL);
 #endif /* CONFIG_ANDROID */
 
         spin_lock_init(&edev->lock);
diff --git a/drivers/extcon/extcon_gpio.c b/drivers/extcon/extcon_gpio.c
index fe7a07b47336..8a0dcc11c7c7 100644
--- a/drivers/extcon/extcon_gpio.c
+++ b/drivers/extcon/extcon_gpio.c
@@ -125,6 +125,7 @@ static int __devinit gpio_extcon_probe(struct platform_device *pdev)
         if (ret < 0)
                 goto err_request_irq;
 
+        platform_set_drvdata(pdev, extcon_data);
         /* Perform initial detection */
         gpio_extcon_work(&extcon_data->work.work);
 
@@ -146,6 +147,7 @@ static int __devexit gpio_extcon_remove(struct platform_device *pdev)
         struct gpio_extcon_data *extcon_data = platform_get_drvdata(pdev);
 
         cancel_delayed_work_sync(&extcon_data->work);
+        free_irq(extcon_data->irq, extcon_data);
         gpio_free(extcon_data->gpio);
         extcon_dev_unregister(&extcon_data->edev);
         devm_kfree(&pdev->dev, extcon_data);
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index f082e48ab113..70d62f5bc909 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -215,7 +215,7 @@ static int read_smc(u8 cmd, const char *key, u8 *buffer, u8 len)
         int i;
 
         if (send_command(cmd) || send_argument(key)) {
-                pr_warn("%s: read arg fail\n", key);
+                pr_warn("%.4s: read arg fail\n", key);
                 return -EIO;
         }
 
@@ -223,7 +223,7 @@ static int read_smc(u8 cmd, const char *key, u8 *buffer, u8 len)
 
         for (i = 0; i < len; i++) {
                 if (__wait_status(0x05)) {
-                        pr_warn("%s: read data fail\n", key);
+                        pr_warn("%.4s: read data fail\n", key);
                         return -EIO;
                 }
                 buffer[i] = inb(APPLESMC_DATA_PORT);
diff --git a/drivers/hwmon/emc2103.c b/drivers/hwmon/emc2103.c
index 9691f664c76e..e7d234b59312 100644
--- a/drivers/hwmon/emc2103.c
+++ b/drivers/hwmon/emc2103.c
@@ -451,11 +451,15 @@ static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *da,
                 data->fan_rpm_control = true;
                 break;
         default:
-                mutex_unlock(&data->update_lock);
-                return -EINVAL;
+                count = -EINVAL;
+                goto err;
         }
 
-        read_u8_from_i2c(client, REG_FAN_CONF1, &conf_reg);
+        result = read_u8_from_i2c(client, REG_FAN_CONF1, &conf_reg);
+        if (result) {
+                count = result;
+                goto err;
+        }
 
         if (data->fan_rpm_control)
                 conf_reg |= 0x80;
@@ -463,7 +467,7 @@ static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *da,
                 conf_reg &= ~0x80;
 
         i2c_smbus_write_byte_data(client, REG_FAN_CONF1, conf_reg);
-
+err:
         mutex_unlock(&data->update_lock);
         return count;
 }
diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig
index 56eecefcec75..2ec93da41e2c 100644
--- a/drivers/iio/Kconfig
+++ b/drivers/iio/Kconfig
@@ -8,8 +8,7 @@ menuconfig IIO
         help
           The industrial I/O subsystem provides a unified framework for
           drivers for many different types of embedded sensors using a
-          number of different physical interfaces (i2c, spi, etc). See
-          Documentation/iio for more information.
+          number of different physical interfaces (i2c, spi, etc).
 
 if IIO
 
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 1ddd8861c71b..4f947e4377ef 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -661,7 +661,6 @@ static int iio_device_register_sysfs(struct iio_dev *indio_dev)
          * New channel registration method - relies on the fact a group does
          * not need to be initialized if it is name is NULL.
          */
-        INIT_LIST_HEAD(&indio_dev->channel_attr_list);
         if (indio_dev->channels)
                 for (i = 0; i < indio_dev->num_channels; i++) {
                         ret = iio_device_add_channel_sysfs(indio_dev,
@@ -725,12 +724,16 @@ static void iio_device_unregister_sysfs(struct iio_dev *indio_dev)
 static void iio_dev_release(struct device *device)
 {
         struct iio_dev *indio_dev = dev_to_iio_dev(device);
-        cdev_del(&indio_dev->chrdev);
+        if (indio_dev->chrdev.dev)
+                cdev_del(&indio_dev->chrdev);
         if (indio_dev->modes & INDIO_BUFFER_TRIGGERED)
                 iio_device_unregister_trigger_consumer(indio_dev);
         iio_device_unregister_eventset(indio_dev);
         iio_device_unregister_sysfs(indio_dev);
         iio_device_unregister_debugfs(indio_dev);
+
+        ida_simple_remove(&iio_ida, indio_dev->id);
+        kfree(indio_dev);
 }
 
 static struct device_type iio_dev_type = {
@@ -761,6 +764,7 @@ struct iio_dev *iio_device_alloc(int sizeof_priv)
                 dev_set_drvdata(&dev->dev, (void *)dev);
                 mutex_init(&dev->mlock);
                 mutex_init(&dev->info_exist_lock);
+                INIT_LIST_HEAD(&dev->channel_attr_list);
 
                 dev->id = ida_simple_get(&iio_ida, 0, 0, GFP_KERNEL);
                 if (dev->id < 0) {
@@ -778,10 +782,8 @@ EXPORT_SYMBOL(iio_device_alloc);
 
 void iio_device_free(struct iio_dev *dev)
 {
-        if (dev) {
-                ida_simple_remove(&iio_ida, dev->id);
-                kfree(dev);
-        }
+        if (dev)
+                put_device(&dev->dev);
 }
 EXPORT_SYMBOL(iio_device_free);
 
@@ -902,7 +904,7 @@ void iio_device_unregister(struct iio_dev *indio_dev)
         mutex_lock(&indio_dev->info_exist_lock);
         indio_dev->info = NULL;
         mutex_unlock(&indio_dev->info_exist_lock);
-        device_unregister(&indio_dev->dev);
+        device_del(&indio_dev->dev);
 }
 EXPORT_SYMBOL(iio_device_unregister);
 subsys_initcall(iio_init);
diff --git a/drivers/media/video/pms.c b/drivers/media/video/pms.c
index af2d9086d7e8..c370c2d87c17 100644
--- a/drivers/media/video/pms.c
+++ b/drivers/media/video/pms.c
@@ -29,6 +29,7 @@
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/mutex.h>
+#include <linux/slab.h>
 #include <linux/uaccess.h>
 #include <linux/isa.h>
 #include <asm/io.h>
diff --git a/drivers/mfd/stmpe-i2c.c b/drivers/mfd/stmpe-i2c.c
index 373f423b1181..947a06a1845f 100644
--- a/drivers/mfd/stmpe-i2c.c
+++ b/drivers/mfd/stmpe-i2c.c
@@ -6,7 +6,7 @@
  *
  * License Terms: GNU General Public License, version 2
  * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
- * Author: Viresh Kumar <viresh.kumar@st.com> for ST Microelectronics
+ * Author: Viresh Kumar <viresh.linux@gmail.com> for ST Microelectronics
  */
 
 #include <linux/i2c.h>
diff --git a/drivers/mfd/stmpe-spi.c b/drivers/mfd/stmpe-spi.c
index afd459013ecb..9edfe864cc05 100644
--- a/drivers/mfd/stmpe-spi.c
+++ b/drivers/mfd/stmpe-spi.c
@@ -4,7 +4,7 @@
  * Copyright (C) ST Microelectronics SA 2011
  *
  * License Terms: GNU General Public License, version 2
- * Author: Viresh Kumar <viresh.kumar@st.com> for ST Microelectronics
+ * Author: Viresh Kumar <viresh.linux@gmail.com> for ST Microelectronics
  */
 
 #include <linux/spi/spi.h>
@@ -146,4 +146,4 @@ module_exit(stmpe_exit);
 
 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("STMPE MFD SPI Interface Driver");
-MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");
+MODULE_AUTHOR("Viresh Kumar <viresh.linux@gmail.com>");
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 93936f1b75eb..23f5463d4cae 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -835,7 +835,7 @@ static int _mei_irq_thread_read(struct mei_device *dev,	s32 *slots,
                         struct mei_cl *cl,
                         struct mei_io_list *cmpl_list)
 {
-        if ((*slots * sizeof(u32)) >= (sizeof(struct mei_msg_hdr) +
+        if ((*slots * sizeof(u32)) < (sizeof(struct mei_msg_hdr) +
                         sizeof(struct hbm_flow_control))) {
                 /* return the cancel routine */
                 list_del(&cb_pos->cb_list);
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index c70333228337..7de13891e49e 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -982,7 +982,7 @@ static int __devinit mei_probe(struct pci_dev *pdev,
                 err = request_threaded_irq(pdev->irq,
                         NULL,
                         mei_interrupt_thread_handler,
-                        0, mei_driver_name, dev);
+                        IRQF_ONESHOT, mei_driver_name, dev);
         else
                 err = request_threaded_irq(pdev->irq,
                         mei_interrupt_quick_handler,
@@ -992,7 +992,7 @@ static int __devinit mei_probe(struct pci_dev *pdev,
         if (err) {
                 dev_err(&pdev->dev, "request_threaded_irq failure. irq = %d\n",
                        pdev->irq);
-                goto unmap_memory;
+                goto disable_msi;
         }
         INIT_DELAYED_WORK(&dev->timer_work, mei_timer);
         if (mei_hw_init(dev)) {
@@ -1023,8 +1023,8 @@ release_irq:
         mei_disable_interrupts(dev);
         flush_scheduled_work();
         free_irq(pdev->irq, dev);
+disable_msi:
         pci_disable_msi(pdev);
-unmap_memory:
         pci_iounmap(pdev, dev->mem_addr);
 free_device:
         kfree(dev);
@@ -1101,6 +1101,8 @@ static void __devexit mei_remove(struct pci_dev *pdev)
 
         pci_release_regions(pdev);
         pci_disable_device(pdev);
+
+        misc_deregister(&mei_misc_device);
 }
 #ifdef CONFIG_PM
 static int mei_pci_suspend(struct device *device)
@@ -1216,7 +1218,6 @@ module_init(mei_init_module);
  */
 static void __exit mei_exit_module(void)
 {
-        misc_deregister(&mei_misc_device);
         pci_unregister_driver(&mei_driver);
 
         pr_debug("unloaded successfully.\n");
diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c
index 6be5605707b4..e2ec0505eb5c 100644
--- a/drivers/misc/mei/wd.c
+++ b/drivers/misc/mei/wd.c
@@ -341,7 +341,7 @@ static const struct watchdog_ops wd_ops = {
 };
 static const struct watchdog_info wd_info = {
                 .identity = INTEL_AMT_WATCHDOG_ID,
-                .options = WDIOF_KEEPALIVEPING,
+                .options = WDIOF_KEEPALIVEPING | WDIOF_ALARMONLY,
 };
 
 static struct watchdog_device amt_wd_dev = {
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index f0fcce40cd8d..50ff19a62368 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1216,12 +1216,7 @@ static void mmci_dt_populate_generic_pdata(struct device_node *np,
         int bus_width = 0;
 
         pdata->gpio_wp = of_get_named_gpio(np, "wp-gpios", 0);
-        if (!pdata->gpio_wp)
-                pdata->gpio_wp = -1;
-
         pdata->gpio_cd = of_get_named_gpio(np, "cd-gpios", 0);
-        if (!pdata->gpio_cd)
-                pdata->gpio_cd = -1;
 
         if (of_get_property(np, "cd-inverted", NULL))
                 pdata->cd_invert = true;
@@ -1276,6 +1271,12 @@ static int __devinit mmci_probe(struct amba_device *dev,
                 return -EINVAL;
         }
 
+        if (!plat) {
+                plat = devm_kzalloc(&dev->dev, sizeof(*plat), GFP_KERNEL);
+                if (!plat)
+                        return -ENOMEM;
+        }
+
         if (np)
                 mmci_dt_populate_generic_pdata(np, plat);
 
@@ -1424,6 +1425,10 @@ static int __devinit mmci_probe(struct amba_device *dev,
         writel(0, host->base + MMCIMASK1);
         writel(0xfff, host->base + MMCICLEAR);
 
+        if (plat->gpio_cd == -EPROBE_DEFER) {
+                ret = -EPROBE_DEFER;
+                goto err_gpio_cd;
+        }
         if (gpio_is_valid(plat->gpio_cd)) {
                 ret = gpio_request(plat->gpio_cd, DRIVER_NAME " (cd)");
                 if (ret == 0)
@@ -1447,6 +1452,10 @@ static int __devinit mmci_probe(struct amba_device *dev,
                 if (ret >= 0)
                         host->gpio_cd_irq = gpio_to_irq(plat->gpio_cd);
         }
+        if (plat->gpio_wp == -EPROBE_DEFER) {
+                ret = -EPROBE_DEFER;
+                goto err_gpio_wp;
+        }
         if (gpio_is_valid(plat->gpio_wp)) {
                 ret = gpio_request(plat->gpio_wp, DRIVER_NAME " (wp)");
                 if (ret == 0)
diff --git a/drivers/mmc/host/sdhci-spear.c b/drivers/mmc/host/sdhci-spear.c
index 1fe32dfa7cd4..423da8194cd8 100644
--- a/drivers/mmc/host/sdhci-spear.c
+++ b/drivers/mmc/host/sdhci-spear.c
@@ -4,7 +4,7 @@
  * Support of SDHCI platform devices for spear soc family
  *
  * Copyright (C) 2010 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * Inspired by sdhci-pltfm.c
  *
@@ -289,5 +289,5 @@ static struct platform_driver sdhci_driver = {
 module_platform_driver(sdhci_driver);
 
 MODULE_DESCRIPTION("SPEAr Secure Digital Host Controller Interface driver");
-MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");
+MODULE_AUTHOR("Viresh Kumar <viresh.linux@gmail.com>");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c
index ae36d7e1e913..551e316e4454 100644
--- a/drivers/mtd/mtdoops.c
+++ b/drivers/mtd/mtdoops.c
@@ -304,32 +304,17 @@ static void find_next_position(struct mtdoops_context *cxt)
 }
 
 static void mtdoops_do_dump(struct kmsg_dumper *dumper,
-                enum kmsg_dump_reason reason, const char *s1, unsigned long l1,
-                const char *s2, unsigned long l2)
+                            enum kmsg_dump_reason reason)
 {
         struct mtdoops_context *cxt = container_of(dumper,
                         struct mtdoops_context, dump);
-        unsigned long s1_start, s2_start;
-        unsigned long l1_cpy, l2_cpy;
-        char *dst;
-
-        if (reason != KMSG_DUMP_OOPS &&
-            reason != KMSG_DUMP_PANIC)
-                return;
 
         /* Only dump oopses if dump_oops is set */
         if (reason == KMSG_DUMP_OOPS && !dump_oops)
                 return;
 
-        dst = cxt->oops_buf + MTDOOPS_HEADER_SIZE; /* Skip the header */
-        l2_cpy = min(l2, record_size - MTDOOPS_HEADER_SIZE);
-        l1_cpy = min(l1, record_size - MTDOOPS_HEADER_SIZE - l2_cpy);
-
-        s2_start = l2 - l2_cpy;
-        s1_start = l1 - l1_cpy;
-
-        memcpy(dst, s1 + s1_start, l1_cpy);
-        memcpy(dst + l1_cpy, s2 + s2_start, l2_cpy);
+        kmsg_dump_get_buffer(dumper, true, cxt->oops_buf + MTDOOPS_HEADER_SIZE,
+                             record_size - MTDOOPS_HEADER_SIZE, NULL);
 
         /* Panics must be written immediately */
         if (reason != KMSG_DUMP_OOPS)
@@ -375,6 +360,7 @@ static void mtdoops_notify_add(struct mtd_info *mtd)
                 return;
         }
 
+        cxt->dump.max_reason = KMSG_DUMP_OOPS;
         cxt->dump.dump = mtdoops_do_dump;
         err = kmsg_dump_register(&cxt->dump);
         if (err) {
diff --git a/drivers/pinctrl/pinctrl-mxs.c b/drivers/pinctrl/pinctrl-mxs.c
index afb50ee64598..4ba4636b6a4a 100644
--- a/drivers/pinctrl/pinctrl-mxs.c
+++ b/drivers/pinctrl/pinctrl-mxs.c
@@ -137,7 +137,7 @@ static int mxs_dt_node_to_map(struct pinctrl_dev *pctldev,
 
 free_group:
         if (!purecfg)
-                free(group);
+                kfree(group);
 free:
         kfree(new_map);
         return ret;
diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c
index e8937e7e4999..3e7e47d6b385 100644
--- a/drivers/pinctrl/pinctrl-nomadik.c
+++ b/drivers/pinctrl/pinctrl-nomadik.c
@@ -1438,7 +1438,27 @@ static int nmk_pmx_enable(struct pinctrl_dev *pctldev, unsigned function,
 
         dev_dbg(npct->dev, "enable group %s, %u pins\n", g->name, g->npins);
 
-        /* Handle this special glitch on altfunction C */
+        /*
+         * If we're setting altfunc C by setting both AFSLA and AFSLB to 1,
+         * we may pass through an undesired state. In this case we take
+         * some extra care.
+         *
+         * Safe sequence used to switch IOs between GPIO and Alternate-C mode:
+         *  - Save SLPM registers (since we have a shadow register in the
+         *    nmk_chip we're using that as backup)
+         *  - Set SLPM=0 for the IOs you want to switch and others to 1
+         *  - Configure the GPIO registers for the IOs that are being switched
+         *  - Set IOFORCE=1
+         *  - Modify the AFLSA/B registers for the IOs that are being switched
+         *  - Set IOFORCE=0
+         *  - Restore SLPM registers
+         *  - Any spurious wake up event during switch sequence to be ignored
+         *    and cleared
+         *
+         * We REALLY need to save ALL slpm registers, because the external
+         * IOFORCE will switch *all* ports to their sleepmode setting to as
+         * to avoid glitches. (Not just one port!)
+         */
         glitch = (g->altsetting == NMK_GPIO_ALT_C);
 
         if (glitch) {
diff --git a/drivers/pinctrl/spear/pinctrl-spear.c b/drivers/pinctrl/spear/pinctrl-spear.c
index 5ae50aadf885..b3f6b2873fdd 100644
--- a/drivers/pinctrl/spear/pinctrl-spear.c
+++ b/drivers/pinctrl/spear/pinctrl-spear.c
@@ -2,7 +2,7 @@
  * Driver for the ST Microelectronics SPEAr pinmux
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * Inspired from:
  * - U300 Pinctl drivers
diff --git a/drivers/pinctrl/spear/pinctrl-spear.h b/drivers/pinctrl/spear/pinctrl-spear.h
index 9155783bb47f..d950eb78d939 100644
--- a/drivers/pinctrl/spear/pinctrl-spear.h
+++ b/drivers/pinctrl/spear/pinctrl-spear.h
@@ -2,7 +2,7 @@
  * Driver header file for the ST Microelectronics SPEAr pinmux
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/drivers/pinctrl/spear/pinctrl-spear1310.c b/drivers/pinctrl/spear/pinctrl-spear1310.c
index fff168be7f00..d6cca8c81b92 100644
--- a/drivers/pinctrl/spear/pinctrl-spear1310.c
+++ b/drivers/pinctrl/spear/pinctrl-spear1310.c
@@ -2,7 +2,7 @@
  * Driver for the ST Microelectronics SPEAr1310 pinmux
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
@@ -2192,7 +2192,7 @@ static void __exit spear1310_pinctrl_exit(void)
 }
 module_exit(spear1310_pinctrl_exit);
 
-MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");
+MODULE_AUTHOR("Viresh Kumar <viresh.linux@gmail.com>");
 MODULE_DESCRIPTION("ST Microelectronics SPEAr1310 pinctrl driver");
 MODULE_LICENSE("GPL v2");
 MODULE_DEVICE_TABLE(of, spear1310_pinctrl_of_match);
diff --git a/drivers/pinctrl/spear/pinctrl-spear1340.c b/drivers/pinctrl/spear/pinctrl-spear1340.c
index a8ab2a6f51bf..a0eb057e55bd 100644
--- a/drivers/pinctrl/spear/pinctrl-spear1340.c
+++ b/drivers/pinctrl/spear/pinctrl-spear1340.c
@@ -2,7 +2,7 @@
  * Driver for the ST Microelectronics SPEAr1340 pinmux
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
@@ -1983,7 +1983,7 @@ static void __exit spear1340_pinctrl_exit(void)
 }
 module_exit(spear1340_pinctrl_exit);
 
-MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");
+MODULE_AUTHOR("Viresh Kumar <viresh.linux@gmail.com>");
 MODULE_DESCRIPTION("ST Microelectronics SPEAr1340 pinctrl driver");
 MODULE_LICENSE("GPL v2");
 MODULE_DEVICE_TABLE(of, spear1340_pinctrl_of_match);
diff --git a/drivers/pinctrl/spear/pinctrl-spear300.c b/drivers/pinctrl/spear/pinctrl-spear300.c
index 9c82a35e4e78..4dfc2849b172 100644
--- a/drivers/pinctrl/spear/pinctrl-spear300.c
+++ b/drivers/pinctrl/spear/pinctrl-spear300.c
@@ -2,7 +2,7 @@
  * Driver for the ST Microelectronics SPEAr300 pinmux
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
@@ -702,7 +702,7 @@ static void __exit spear300_pinctrl_exit(void)
 }
 module_exit(spear300_pinctrl_exit);
 
-MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");
+MODULE_AUTHOR("Viresh Kumar <viresh.linux@gmail.com>");
 MODULE_DESCRIPTION("ST Microelectronics SPEAr300 pinctrl driver");
 MODULE_LICENSE("GPL v2");
 MODULE_DEVICE_TABLE(of, spear300_pinctrl_of_match);
diff --git a/drivers/pinctrl/spear/pinctrl-spear310.c b/drivers/pinctrl/spear/pinctrl-spear310.c
index 1a9707605125..96883693fb7e 100644
--- a/drivers/pinctrl/spear/pinctrl-spear310.c
+++ b/drivers/pinctrl/spear/pinctrl-spear310.c
@@ -2,7 +2,7 @@
  * Driver for the ST Microelectronics SPEAr310 pinmux
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
@@ -425,7 +425,7 @@ static void __exit spear310_pinctrl_exit(void)
 }
 module_exit(spear310_pinctrl_exit);
 
-MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");
+MODULE_AUTHOR("Viresh Kumar <viresh.linux@gmail.com>");
 MODULE_DESCRIPTION("ST Microelectronics SPEAr310 pinctrl driver");
 MODULE_LICENSE("GPL v2");
 MODULE_DEVICE_TABLE(of, SPEAr310_pinctrl_of_match);
diff --git a/drivers/pinctrl/spear/pinctrl-spear320.c b/drivers/pinctrl/spear/pinctrl-spear320.c
index de726e6c283a..020b1e0bdb3e 100644
--- a/drivers/pinctrl/spear/pinctrl-spear320.c
+++ b/drivers/pinctrl/spear/pinctrl-spear320.c
@@ -2,7 +2,7 @@
  * Driver for the ST Microelectronics SPEAr320 pinmux
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
@@ -3462,7 +3462,7 @@ static void __exit spear320_pinctrl_exit(void)
 }
 module_exit(spear320_pinctrl_exit);
 
-MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");
+MODULE_AUTHOR("Viresh Kumar <viresh.linux@gmail.com>");
 MODULE_DESCRIPTION("ST Microelectronics SPEAr320 pinctrl driver");
 MODULE_LICENSE("GPL v2");
 MODULE_DEVICE_TABLE(of, spear320_pinctrl_of_match);
diff --git a/drivers/pinctrl/spear/pinctrl-spear3xx.c b/drivers/pinctrl/spear/pinctrl-spear3xx.c
index 91c883bc46a6..0242378f7cb8 100644
--- a/drivers/pinctrl/spear/pinctrl-spear3xx.c
+++ b/drivers/pinctrl/spear/pinctrl-spear3xx.c
@@ -2,7 +2,7 @@
  * Driver for the ST Microelectronics SPEAr3xx pinmux
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/drivers/pinctrl/spear/pinctrl-spear3xx.h b/drivers/pinctrl/spear/pinctrl-spear3xx.h
index 5d5fdd8df7b8..31f44347f17c 100644
--- a/drivers/pinctrl/spear/pinctrl-spear3xx.h
+++ b/drivers/pinctrl/spear/pinctrl-spear3xx.h
@@ -2,7 +2,7 @@
  * Header file for the ST Microelectronics SPEAr3xx pinmux
  *
  * Copyright (C) 2012 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index 46ef5fe51db5..0c73dd4f43a0 100644
--- a/drivers/spi/spi-omap2-mcspi.c
+++ b/drivers/spi/spi-omap2-mcspi.c
@@ -801,7 +801,7 @@ static int omap2_mcspi_setup(struct spi_device *spi)
         mcspi_dma = &mcspi->dma_channels[spi->chip_select];
 
         if (!cs) {
-                cs = devm_kzalloc(&spi->dev , sizeof *cs, GFP_KERNEL);
+                cs = kzalloc(sizeof *cs, GFP_KERNEL);
                 if (!cs)
                         return -ENOMEM;
                 cs->base = mcspi->base + spi->chip_select * 0x14;
@@ -842,6 +842,7 @@ static void omap2_mcspi_cleanup(struct spi_device *spi)
                 cs = spi->controller_state;
                 list_del(&cs->node);
 
+                kfree(cs);
         }
 
         if (spi->chip_select < spi->master->num_chipselect) {
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
index 1c3d6386ea36..aeac1caba3f9 100644
--- a/drivers/staging/comedi/drivers.c
+++ b/drivers/staging/comedi/drivers.c
@@ -30,6 +30,7 @@
 #include <linux/pci.h>
 #include <linux/usb.h>
 #include <linux/errno.h>
+#include <linux/kconfig.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/fcntl.h>
@@ -981,6 +982,8 @@ void comedi_pci_driver_unregister(struct comedi_driver *comedi_driver,
 }
 EXPORT_SYMBOL_GPL(comedi_pci_driver_unregister);
 
+#if IS_ENABLED(CONFIG_USB)
+
 static int comedi_old_usb_auto_config(struct usb_interface *intf,
                                       struct comedi_driver *driver)
 {
@@ -1043,3 +1046,5 @@ void comedi_usb_driver_unregister(struct comedi_driver *comedi_driver,
         comedi_driver_unregister(comedi_driver);
 }
 EXPORT_SYMBOL_GPL(comedi_usb_driver_unregister);
+
+#endif
diff --git a/drivers/staging/gdm72xx/netlink_k.c b/drivers/staging/gdm72xx/netlink_k.c
index 292af0f7f451..51665132c61b 100644
--- a/drivers/staging/gdm72xx/netlink_k.c
+++ b/drivers/staging/gdm72xx/netlink_k.c
@@ -104,7 +104,7 @@ struct sock *netlink_init(int unit, void (*cb)(struct net_device *dev, u16 type,
 
 void netlink_exit(struct sock *sock)
 {
-        sock_release(sock->sk_socket);
+        netlink_kernel_release(sock);
 }
 
 int netlink_send(struct sock *sock, int group, u16 type, void *msg, int len)
diff --git a/drivers/staging/iio/Documentation/device.txt b/drivers/staging/iio/Documentation/device.txt
index 0338c7cd0a8b..f03fbd3bb454 100644
--- a/drivers/staging/iio/Documentation/device.txt
+++ b/drivers/staging/iio/Documentation/device.txt
@@ -29,8 +29,6 @@ Then fill in the following:
         * info->driver_module:
                 Set to THIS_MODULE. Used to ensure correct ownership
                 of various resources allocate by the core.
-        * info->num_interrupt_lines:
-                Number of event triggering hardware lines the device has.
         * info->event_attrs:
                 Attributes used to enable / disable hardware events.
         * info->attrs:
diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig
index 2490dd25093b..8f1b3af02f29 100644
--- a/drivers/staging/iio/adc/Kconfig
+++ b/drivers/staging/iio/adc/Kconfig
@@ -13,6 +13,7 @@ config AD7291
 config AD7298
         tristate "Analog Devices AD7298 ADC driver"
         depends on SPI
+        select IIO_KFIFO_BUF if IIO_BUFFER
         help
           Say yes here to build support for Analog Devices AD7298
           8 Channel ADC with temperature sensor.
diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c
index 10ab6dc823b9..a13afff2dfe6 100644
--- a/drivers/staging/iio/adc/ad7606_core.c
+++ b/drivers/staging/iio/adc/ad7606_core.c
@@ -235,7 +235,8 @@ static const struct attribute_group ad7606_attribute_group_range = {
                 .indexed = 1,                                   \
                 .channel = num,                                 \
                 .address = num,                                 \
-                .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT,    \
+                .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |   \
+                                IIO_CHAN_INFO_SCALE_SHARED_BIT, \
                 .scan_index = num,                              \
                 .scan_type = IIO_ST('s', 16, 16, 0),            \
         }
diff --git a/drivers/staging/omapdrm/omap_fbdev.c b/drivers/staging/omapdrm/omap_fbdev.c
index 11acd4c35ed2..8c6ed3b0c6f6 100644
--- a/drivers/staging/omapdrm/omap_fbdev.c
+++ b/drivers/staging/omapdrm/omap_fbdev.c
@@ -208,7 +208,8 @@ static int omap_fbdev_create(struct drm_fb_helper *helper,
          */
         ret = omap_gem_get_paddr(fbdev->bo, &paddr, true);
         if (ret) {
-                dev_err(dev->dev, "could not map (paddr)!\n");
+                dev_err(dev->dev,
+                        "could not map (paddr)!  Skipping framebuffer alloc\n");
                 ret = -ENOMEM;
                 goto fail;
         }
@@ -388,8 +389,11 @@ void omap_fbdev_free(struct drm_device *dev)
 
         fbi = helper->fbdev;
 
-        unregister_framebuffer(fbi);
-        framebuffer_release(fbi);
+        /* only cleanup framebuffer if it is present */
+        if (fbi) {
+                unregister_framebuffer(fbi);
+                framebuffer_release(fbi);
+        }
 
         drm_fb_helper_fini(helper);
 
diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c
index 9bd18e2d0513..69f616c6964e 100644
--- a/drivers/staging/rtl8712/usb_intf.c
+++ b/drivers/staging/rtl8712/usb_intf.c
@@ -102,6 +102,8 @@ static struct usb_device_id rtl871x_usb_id_tbl[] = {
         /* - */
         {USB_DEVICE(0x20F4, 0x646B)},
         {USB_DEVICE(0x083A, 0xC512)},
+        {USB_DEVICE(0x25D4, 0x4CA1)},
+        {USB_DEVICE(0x25D4, 0x4CAB)},
 
 /* RTL8191SU */
         /* Realtek */
diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250.c
index 47d061b9ad4d..6e1958a325bd 100644
--- a/drivers/tty/serial/8250/8250.c
+++ b/drivers/tty/serial/8250/8250.c
@@ -3113,7 +3113,7 @@ static struct uart_8250_port *serial8250_find_match_or_unused(struct uart_port *
 
 /**
  *      serial8250_register_8250_port - register a serial port
- *      @port: serial port template
+ *      @up: serial port template
  *
  *      Configure the serial port specified by the request. If the
  *      port exists and is in use, it is hung up and unregistered
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 4ad721fb8405..c17923ec6e95 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -133,6 +133,10 @@ struct pl011_dmatx_data {
 struct uart_amba_port {
         struct uart_port        port;
         struct clk              *clk;
+        /* Two optional pin states - default & sleep */
+        struct pinctrl          *pinctrl;
+        struct pinctrl_state    *pins_default;
+        struct pinctrl_state    *pins_sleep;
         const struct vendor_data *vendor;
         unsigned int            dmacr;          /* dma control reg */
         unsigned int            im;             /* interrupt mask */
@@ -1312,6 +1316,14 @@ static int pl011_startup(struct uart_port *port)
         unsigned int cr;
         int retval;
 
+        /* Optionaly enable pins to be muxed in and configured */
+        if (!IS_ERR(uap->pins_default)) {
+                retval = pinctrl_select_state(uap->pinctrl, uap->pins_default);
+                if (retval)
+                        dev_err(port->dev,
+                                "could not set default pins\n");
+        }
+
         retval = clk_prepare(uap->clk);
         if (retval)
                 goto out;
@@ -1420,6 +1432,7 @@ static void pl011_shutdown(struct uart_port *port)
 {
         struct uart_amba_port *uap = (struct uart_amba_port *)port;
         unsigned int cr;
+        int retval;
 
         /*
          * disable all interrupts
@@ -1462,6 +1475,14 @@ static void pl011_shutdown(struct uart_port *port)
          */
         clk_disable(uap->clk);
         clk_unprepare(uap->clk);
+        /* Optionally let pins go into sleep states */
+        if (!IS_ERR(uap->pins_sleep)) {
+                retval = pinctrl_select_state(uap->pinctrl, uap->pins_sleep);
+                if (retval)
+                        dev_err(port->dev,
+                                "could not set pins to sleep state\n");
+        }
+
 
         if (uap->port.dev->platform_data) {
                 struct amba_pl011_data *plat;
@@ -1792,6 +1813,14 @@ static int __init pl011_console_setup(struct console *co, char *options)
         if (!uap)
                 return -ENODEV;
 
+        /* Allow pins to be muxed in and configured */
+        if (!IS_ERR(uap->pins_default)) {
+                ret = pinctrl_select_state(uap->pinctrl, uap->pins_default);
+                if (ret)
+                        dev_err(uap->port.dev,
+                                "could not set default pins\n");
+        }
+
         ret = clk_prepare(uap->clk);
         if (ret)
                 return ret;
@@ -1844,7 +1873,6 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
 {
         struct uart_amba_port *uap;
         struct vendor_data *vendor = id->data;
-        struct pinctrl *pinctrl;
         void __iomem *base;
         int i, ret;
 
@@ -1869,11 +1897,20 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
                 goto free;
         }
 
-        pinctrl = devm_pinctrl_get_select_default(&dev->dev);
-        if (IS_ERR(pinctrl)) {
-                ret = PTR_ERR(pinctrl);
+        uap->pinctrl = devm_pinctrl_get(&dev->dev);
+        if (IS_ERR(uap->pinctrl)) {
+                ret = PTR_ERR(uap->pinctrl);
                 goto unmap;
         }
+        uap->pins_default = pinctrl_lookup_state(uap->pinctrl,
+                                                 PINCTRL_STATE_DEFAULT);
+        if (IS_ERR(uap->pins_default))
+                dev_err(&dev->dev, "could not get default pinstate\n");
+
+        uap->pins_sleep = pinctrl_lookup_state(uap->pinctrl,
+                                               PINCTRL_STATE_SLEEP);
+        if (IS_ERR(uap->pins_sleep))
+                dev_dbg(&dev->dev, "could not get sleep pinstate\n");
 
         uap->clk = clk_get(&dev->dev, NULL);
         if (IS_ERR(uap->clk)) {
diff --git a/drivers/tty/serial/serial_txx9.c b/drivers/tty/serial/serial_txx9.c
index 34bd345da775..6ae2a58d62f2 100644
--- a/drivers/tty/serial/serial_txx9.c
+++ b/drivers/tty/serial/serial_txx9.c
@@ -466,7 +466,7 @@ static void serial_txx9_break_ctl(struct uart_port *port, int break_state)
         spin_unlock_irqrestore(&up->port.lock, flags);
 }
 
-#if defined(CONFIG_SERIAL_TXX9_CONSOLE) || (CONFIG_CONSOLE_POLL)
+#if defined(CONFIG_SERIAL_TXX9_CONSOLE) || defined(CONFIG_CONSOLE_POLL)
 /*
  *      Wait for transmitter & holding register to empty
  */
diff --git a/drivers/watchdog/sp805_wdt.c b/drivers/watchdog/sp805_wdt.c
index afcd13676542..e4841c36798b 100644
--- a/drivers/watchdog/sp805_wdt.c
+++ b/drivers/watchdog/sp805_wdt.c
@@ -4,7 +4,7 @@
  * Watchdog driver for ARM SP805 watchdog module
  *
  * Copyright (C) 2010 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2 or later. This program is licensed "as is" without any
@@ -331,6 +331,6 @@ static struct amba_driver sp805_wdt_driver = {
 
 module_amba_driver(sp805_wdt_driver);
 
-MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");
+MODULE_AUTHOR("Viresh Kumar <viresh.linux@gmail.com>");
 MODULE_DESCRIPTION("ARM SP805 Watchdog Driver");
 MODULE_LICENSE("GPL");
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 8f7d1237b7a0..7301cdb4b2cb 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -179,61 +179,74 @@ static int __add_prelim_ref(struct list_head *head, u64 root_id,
 
 static int add_all_parents(struct btrfs_root *root, struct btrfs_path *path,
                                 struct ulist *parents, int level,
-                                struct btrfs_key *key, u64 time_seq,
+                                struct btrfs_key *key_for_search, u64 time_seq,
                                 u64 wanted_disk_byte,
                                 const u64 *extent_item_pos)
 {
-        int ret;
-        int slot = path->slots[level];
-        struct extent_buffer *eb = path->nodes[level];
+        int ret = 0;
+        int slot;
+        struct extent_buffer *eb;
+        struct btrfs_key key;
         struct btrfs_file_extent_item *fi;
         struct extent_inode_elem *eie = NULL;
         u64 disk_byte;
-        u64 wanted_objectid = key->objectid;
 
-add_parent:
-        if (level == 0 && extent_item_pos) {
-                fi = btrfs_item_ptr(eb, slot, struct btrfs_file_extent_item);
-                ret = check_extent_in_eb(key, eb, fi, *extent_item_pos, &eie);
+        if (level != 0) {
+                eb = path->nodes[level];
+                ret = ulist_add(parents, eb->start, 0, GFP_NOFS);
                 if (ret < 0)
                         return ret;
-        }
-        ret = ulist_add(parents, eb->start, (unsigned long)eie, GFP_NOFS);
-        if (ret < 0)
-                return ret;
-
-        if (level != 0)
                 return 0;
+        }
 
         /*
-         * if the current leaf is full with EXTENT_DATA items, we must
-         * check the next one if that holds a reference as well.
-         * ref->count cannot be used to skip this check.
-         * repeat this until we don't find any additional EXTENT_DATA items.
+         * We normally enter this function with the path already pointing to
+         * the first item to check. But sometimes, we may enter it with
+         * slot==nritems. In that case, go to the next leaf before we continue.
          */
-        while (1) {
-                eie = NULL;
+        if (path->slots[0] >= btrfs_header_nritems(path->nodes[0]))
                 ret = btrfs_next_old_leaf(root, path, time_seq);
-                if (ret < 0)
-                        return ret;
-                if (ret)
-                        return 0;
 
+        while (!ret) {
                 eb = path->nodes[0];
-                for (slot = 0; slot < btrfs_header_nritems(eb); ++slot) {
-                        btrfs_item_key_to_cpu(eb, key, slot);
-                        if (key->objectid != wanted_objectid ||
-                            key->type != BTRFS_EXTENT_DATA_KEY)
-                                return 0;
-                        fi = btrfs_item_ptr(eb, slot,
-                                                struct btrfs_file_extent_item);
-                        disk_byte = btrfs_file_extent_disk_bytenr(eb, fi);
-                        if (disk_byte == wanted_disk_byte)
-                                goto add_parent;
+                slot = path->slots[0];
+
+                btrfs_item_key_to_cpu(eb, &key, slot);
+
+                if (key.objectid != key_for_search->objectid ||
+                    key.type != BTRFS_EXTENT_DATA_KEY)
+                        break;
+
+                fi = btrfs_item_ptr(eb, slot, struct btrfs_file_extent_item);
+                disk_byte = btrfs_file_extent_disk_bytenr(eb, fi);
+
+                if (disk_byte == wanted_disk_byte) {
+                        eie = NULL;
+                        if (extent_item_pos) {
+                                ret = check_extent_in_eb(&key, eb, fi,
+                                                *extent_item_pos,
+                                                &eie);
+                                if (ret < 0)
+                                        break;
+                        }
+                        if (!ret) {
+                                ret = ulist_add(parents, eb->start,
+                                                (unsigned long)eie, GFP_NOFS);
+                                if (ret < 0)
+                                        break;
+                                if (!extent_item_pos) {
+                                        ret = btrfs_next_old_leaf(root, path,
+                                                        time_seq);
+                                        continue;
+                                }
+                        }
                 }
+                ret = btrfs_next_old_item(root, path, time_seq);
         }
 
-        return 0;
+        if (ret > 0)
+                ret = 0;
+        return ret;
 }
 
 /*
@@ -250,7 +263,6 @@ static int __resolve_indirect_ref(struct btrfs_fs_info *fs_info,
         struct btrfs_path *path;
         struct btrfs_root *root;
         struct btrfs_key root_key;
-        struct btrfs_key key = {0};
         struct extent_buffer *eb;
         int ret = 0;
         int root_level;
@@ -295,11 +307,9 @@ static int __resolve_indirect_ref(struct btrfs_fs_info *fs_info,
                 goto out;
         }
 
-        if (level == 0)
-                btrfs_item_key_to_cpu(eb, &key, path->slots[0]);
-
-        ret = add_all_parents(root, path, parents, level, &key, time_seq,
-                                ref->wanted_disk_byte, extent_item_pos);
+        ret = add_all_parents(root, path, parents, level, &ref->key_for_search,
+                                time_seq, ref->wanted_disk_byte,
+                                extent_item_pos);
 out:
         btrfs_free_path(path);
         return ret;
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 8b73b2d4deb7..fa5c45b39075 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2755,13 +2755,18 @@ static inline int btrfs_insert_empty_item(struct btrfs_trans_handle *trans,
 int btrfs_next_leaf(struct btrfs_root *root, struct btrfs_path *path);
 int btrfs_next_old_leaf(struct btrfs_root *root, struct btrfs_path *path,
                         u64 time_seq);
-static inline int btrfs_next_item(struct btrfs_root *root, struct btrfs_path *p)
+static inline int btrfs_next_old_item(struct btrfs_root *root,
+                                      struct btrfs_path *p, u64 time_seq)
 {
         ++p->slots[0];
         if (p->slots[0] >= btrfs_header_nritems(p->nodes[0]))
-                return btrfs_next_leaf(root, p);
+                return btrfs_next_old_leaf(root, p, time_seq);
         return 0;
 }
+static inline int btrfs_next_item(struct btrfs_root *root, struct btrfs_path *p)
+{
+        return btrfs_next_old_item(root, p, 0);
+}
 int btrfs_prev_leaf(struct btrfs_root *root, struct btrfs_path *path);
 int btrfs_leaf_free_space(struct btrfs_root *root, struct extent_buffer *leaf);
 int __must_check btrfs_drop_snapshot(struct btrfs_root *root,
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index e1890b1d3075..7b845ff4af99 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3426,6 +3426,7 @@ int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
                                 mutex_unlock(&head->mutex);
                                 btrfs_put_delayed_ref(ref);
 
+                                spin_lock(&delayed_refs->lock);
                                 continue;
                         }
 
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index a4f02501da40..d8bb0dbc4941 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -987,7 +987,7 @@ static noinline void async_cow_start(struct btrfs_work *work)
                             async_cow->start, async_cow->end, async_cow,
                             &num_added);
         if (num_added == 0) {
-                iput(async_cow->inode);
+                btrfs_add_delayed_iput(async_cow->inode);
                 async_cow->inode = NULL;
         }
 }
@@ -1023,7 +1023,7 @@ static noinline void async_cow_free(struct btrfs_work *work)
         struct async_cow *async_cow;
         async_cow = container_of(work, struct async_cow, work);
         if (async_cow->inode)
-                iput(async_cow->inode);
+                btrfs_add_delayed_iput(async_cow->inode);
         kfree(async_cow);
 }
 
diff --git a/fs/exec.c b/fs/exec.c
index a79786a8d2c8..da27b91ff1e8 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -819,10 +819,10 @@ static int exec_mmap(struct mm_struct *mm)
         /* Notify parent that we're no longer interested in the old VM */
         tsk = current;
         old_mm = current->mm;
-        sync_mm_rss(old_mm);
         mm_release(tsk, old_mm);
 
         if (old_mm) {
+                sync_mm_rss(old_mm);
                 /*
                  * Make sure that if there is a core dump in progress
                  * for the old mm, we get out and die instead of going
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 17ba6b995659..f005b5bebdc7 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -207,7 +207,6 @@ error_0:
 static void nfs4_shutdown_session(struct nfs_client *clp)
 {
         if (nfs4_has_session(clp)) {
-                nfs4_deviceid_purge_client(clp);
                 nfs4_destroy_session(clp->cl_session);
                 nfs4_destroy_clientid(clp);
         }
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 3168f6e3d4d4..9a4cbfc85d81 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -490,6 +490,7 @@ static void nfs_direct_write_reschedule(struct nfs_direct_req *dreq)
                         dreq->error = -EIO;
                         spin_unlock(cinfo.lock);
                 }
+                nfs_release_request(req);
         }
         nfs_pageio_complete(&desc);
 
diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c
index b5b86a05059c..864c51e4b400 100644
--- a/fs/nfs/idmap.c
+++ b/fs/nfs/idmap.c
@@ -57,6 +57,11 @@ unsigned int nfs_idmap_cache_timeout = 600;
 static const struct cred *id_resolver_cache;
 static struct key_type key_type_id_resolver_legacy;
 
+struct idmap {
+        struct rpc_pipe         *idmap_pipe;
+        struct key_construction *idmap_key_cons;
+        struct mutex            idmap_mutex;
+};
 
 /**
  * nfs_fattr_init_names - initialise the nfs_fattr owner_name/group_name fields
@@ -310,9 +315,11 @@ static ssize_t nfs_idmap_get_key(const char *name, size_t namelen,
                                             name, namelen, type, data,
                                             data_size, NULL);
         if (ret < 0) {
+                mutex_lock(&idmap->idmap_mutex);
                 ret = nfs_idmap_request_key(&key_type_id_resolver_legacy,
                                             name, namelen, type, data,
                                             data_size, idmap);
+                mutex_unlock(&idmap->idmap_mutex);
         }
         return ret;
 }
@@ -354,11 +361,6 @@ static int nfs_idmap_lookup_id(const char *name, size_t namelen, const char *typ
 /* idmap classic begins here */
 module_param(nfs_idmap_cache_timeout, int, 0644);
 
-struct idmap {
-        struct rpc_pipe         *idmap_pipe;
-        struct key_construction *idmap_key_cons;
-};
-
 enum {
         Opt_find_uid, Opt_find_gid, Opt_find_user, Opt_find_group, Opt_find_err
 };
@@ -469,6 +471,7 @@ nfs_idmap_new(struct nfs_client *clp)
                 return error;
         }
         idmap->idmap_pipe = pipe;
+        mutex_init(&idmap->idmap_mutex);
 
         clp->cl_idmap = idmap;
         return 0;
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index e605d695dbcb..f7296983eba6 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1530,7 +1530,6 @@ static inline void nfs4_init_once(struct nfs_inode *nfsi)
         nfsi->delegation_state = 0;
         init_rwsem(&nfsi->rwsem);
         nfsi->layout = NULL;
-        atomic_set(&nfsi->commit_info.rpcs_out, 0);
 #endif
 }
 
@@ -1545,6 +1544,7 @@ static void init_once(void *foo)
         INIT_LIST_HEAD(&nfsi->commit_info.list);
         nfsi->npages = 0;
         nfsi->commit_info.ncommit = 0;
+        atomic_set(&nfsi->commit_info.rpcs_out, 0);
         atomic_set(&nfsi->silly_count, 1);
         INIT_HLIST_HEAD(&nfsi->silly_list);
         init_waitqueue_head(&nfsi->waitqueue);
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index b8323aa7b543..bbc49caa7a82 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -70,6 +70,10 @@ find_pnfs_driver(u32 id)
 
         spin_lock(&pnfs_spinlock);
         local = find_pnfs_driver_locked(id);
+        if (local != NULL && !try_module_get(local->owner)) {
+                dprintk("%s: Could not grab reference on module\n", __func__);
+                local = NULL;
+        }
         spin_unlock(&pnfs_spinlock);
         return local;
 }
@@ -80,6 +84,9 @@ unset_pnfs_layoutdriver(struct nfs_server *nfss)
         if (nfss->pnfs_curr_ld) {
                 if (nfss->pnfs_curr_ld->clear_layoutdriver)
                         nfss->pnfs_curr_ld->clear_layoutdriver(nfss);
+                /* Decrement the MDS count. Purge the deviceid cache if zero */
+                if (atomic_dec_and_test(&nfss->nfs_client->cl_mds_count))
+                        nfs4_deviceid_purge_client(nfss->nfs_client);
                 module_put(nfss->pnfs_curr_ld->owner);
         }
         nfss->pnfs_curr_ld = NULL;
@@ -115,10 +122,6 @@ set_pnfs_layoutdriver(struct nfs_server *server, const struct nfs_fh *mntfh,
                         goto out_no_driver;
                 }
         }
-        if (!try_module_get(ld_type->owner)) {
-                dprintk("%s: Could not grab reference on module\n", __func__);
-                goto out_no_driver;
-        }
         server->pnfs_curr_ld = ld_type;
         if (ld_type->set_layoutdriver
             && ld_type->set_layoutdriver(server, mntfh)) {
@@ -127,6 +130,8 @@ set_pnfs_layoutdriver(struct nfs_server *server, const struct nfs_fh *mntfh,
                 module_put(ld_type->owner);
                 goto out_no_driver;
         }
+        /* Bump the MDS count */
+        atomic_inc(&server->nfs_client->cl_mds_count);
 
         dprintk("%s: pNFS module for %u set\n", __func__, id);
         return;
diff --git a/fs/nilfs2/gcinode.c b/fs/nilfs2/gcinode.c
index 08a07a218d26..57ceaf33d177 100644
--- a/fs/nilfs2/gcinode.c
+++ b/fs/nilfs2/gcinode.c
@@ -191,6 +191,8 @@ void nilfs_remove_all_gcinodes(struct the_nilfs *nilfs)
         while (!list_empty(head)) {
                 ii = list_first_entry(head, struct nilfs_inode_info, i_dirty);
                 list_del_init(&ii->i_dirty);
+                truncate_inode_pages(&ii->vfs_inode.i_data, 0);
+                nilfs_btnode_cache_clear(&ii->i_btnode_cache);
                 iput(&ii->vfs_inode);
         }
 }
diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
index 0e72ad6f22aa..88e11fb346b6 100644
--- a/fs/nilfs2/segment.c
+++ b/fs/nilfs2/segment.c
@@ -2309,6 +2309,8 @@ nilfs_remove_written_gcinodes(struct the_nilfs *nilfs, struct list_head *head)
                 if (!test_bit(NILFS_I_UPDATED, &ii->i_state))
                         continue;
                 list_del_init(&ii->i_dirty);
+                truncate_inode_pages(&ii->vfs_inode.i_data, 0);
+                nilfs_btnode_cache_clear(&ii->i_btnode_cache);
                 iput(&ii->vfs_inode);
         }
 }
diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c
index aeb19e68e086..11a2aa2a56c4 100644
--- a/fs/pstore/inode.c
+++ b/fs/pstore/inode.c
@@ -258,7 +258,7 @@ fail:
         return rc;
 }
 
-int pstore_fill_super(struct super_block *sb, void *data, int silent)
+static int pstore_fill_super(struct super_block *sb, void *data, int silent)
 {
         struct inode *inode;
 
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 82c585f715e3..03ce7a9b81cc 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -94,20 +94,15 @@ static const char *get_reason_str(enum kmsg_dump_reason reason)
  * as we can from the end of the buffer.
  */
 static void pstore_dump(struct kmsg_dumper *dumper,
-            enum kmsg_dump_reason reason,
-            const char *s1, unsigned long l1,
-            const char *s2, unsigned long l2)
+                        enum kmsg_dump_reason reason)
 {
-        unsigned long   s1_start, s2_start;
-        unsigned long   l1_cpy, l2_cpy;
-        unsigned long   size, total = 0;
-        char            *dst;
+        unsigned long   total = 0;
         const char      *why;
         u64             id;
-        int             hsize, ret;
         unsigned int    part = 1;
         unsigned long   flags = 0;
         int             is_locked = 0;
+        int             ret;
 
         why = get_reason_str(reason);
 
@@ -119,30 +114,25 @@ static void pstore_dump(struct kmsg_dumper *dumper,
                 spin_lock_irqsave(&psinfo->buf_lock, flags);
         oopscount++;
         while (total < kmsg_bytes) {
+                char *dst;
+                unsigned long size;
+                int hsize;
+                size_t len;
+
                 dst = psinfo->buf;
                 hsize = sprintf(dst, "%s#%d Part%d\n", why, oopscount, part);
                 size = psinfo->bufsize - hsize;
                 dst += hsize;
 
-                l2_cpy = min(l2, size);
-                l1_cpy = min(l1, size - l2_cpy);
-
-                if (l1_cpy + l2_cpy == 0)
+                if (!kmsg_dump_get_buffer(dumper, true, dst, size, &len))
                         break;
 
-                s2_start = l2 - l2_cpy;
-                s1_start = l1 - l1_cpy;
-
-                memcpy(dst, s1 + s1_start, l1_cpy);
-                memcpy(dst + l1_cpy, s2 + s2_start, l2_cpy);
-
                 ret = psinfo->write(PSTORE_TYPE_DMESG, reason, &id, part,
-                                   hsize + l1_cpy + l2_cpy, psinfo);
+                                    hsize + len, psinfo);
                 if (ret == 0 && reason == KMSG_DUMP_OOPS && pstore_is_mounted())
                         pstore_new_entry = 1;
-                l1 -= l1_cpy;
-                l2 -= l2_cpy;
-                total += l1_cpy + l2_cpy;
+
+                total += hsize + len;
                 part++;
         }
         if (in_nmi()) {
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index 9123cce28c1e..453030f9c5bc 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -106,6 +106,8 @@ static ssize_t ramoops_pstore_read(u64 *id, enum pstore_type_id *type,
         time->tv_sec = 0;
         time->tv_nsec = 0;
 
+        /* Update old/shadowed buffer. */
+        persistent_ram_save_old(prz);
         size = persistent_ram_old_size(prz);
         *buf = kmalloc(size, GFP_KERNEL);
         if (*buf == NULL)
@@ -184,6 +186,7 @@ static int ramoops_pstore_erase(enum pstore_type_id type, u64 id,
                 return -EINVAL;
 
         persistent_ram_free_old(cxt->przs[id]);
+        persistent_ram_zap(cxt->przs[id]);
 
         return 0;
 }
diff --git a/fs/pstore/ram_core.c b/fs/pstore/ram_core.c
index 31f8d184f3a0..c5fbdbbf81ac 100644
--- a/fs/pstore/ram_core.c
+++ b/fs/pstore/ram_core.c
@@ -250,23 +250,24 @@ static void notrace persistent_ram_update(struct persistent_ram_zone *prz,
         persistent_ram_update_ecc(prz, start, count);
 }
 
-static void __init
-persistent_ram_save_old(struct persistent_ram_zone *prz)
+void persistent_ram_save_old(struct persistent_ram_zone *prz)
 {
         struct persistent_ram_buffer *buffer = prz->buffer;
         size_t size = buffer_size(prz);
         size_t start = buffer_start(prz);
-        char *dest;
 
-        persistent_ram_ecc_old(prz);
+        if (!size)
+                return;
 
-        dest = kmalloc(size, GFP_KERNEL);
-        if (dest == NULL) {
+        if (!prz->old_log) {
+                persistent_ram_ecc_old(prz);
+                prz->old_log = kmalloc(size, GFP_KERNEL);
+        }
+        if (!prz->old_log) {
                 pr_err("persistent_ram: failed to allocate buffer\n");
                 return;
         }
 
-        prz->old_log = dest;
         prz->old_log_size = size;
         memcpy(prz->old_log, &buffer->data[start], size - start);
         memcpy(prz->old_log + size - start, &buffer->data[0], start);
@@ -319,6 +320,13 @@ void persistent_ram_free_old(struct persistent_ram_zone *prz)
         prz->old_log_size = 0;
 }
 
+void persistent_ram_zap(struct persistent_ram_zone *prz)
+{
+        atomic_set(&prz->buffer->start, 0);
+        atomic_set(&prz->buffer->size, 0);
+        persistent_ram_update_header_ecc(prz);
+}
+
 static void *persistent_ram_vmap(phys_addr_t start, size_t size)
 {
         struct page **pages;
@@ -405,6 +413,7 @@ static int __init persistent_ram_post_init(struct persistent_ram_zone *prz, bool
                                 " size %zu, start %zu\n",
                                buffer_size(prz), buffer_start(prz));
                         persistent_ram_save_old(prz);
+                        return 0;
                 }
         } else {
                 pr_info("persistent_ram: no valid data in buffer"
@@ -412,8 +421,7 @@ static int __init persistent_ram_post_init(struct persistent_ram_zone *prz, bool
         }
 
         prz->buffer->sig = PERSISTENT_RAM_SIG;
-        atomic_set(&prz->buffer->start, 0);
-        atomic_set(&prz->buffer->size, 0);
+        persistent_ram_zap(prz);
 
         return 0;
 }
@@ -448,7 +456,6 @@ struct persistent_ram_zone * __init persistent_ram_new(phys_addr_t start,
                 goto err;
 
         persistent_ram_post_init(prz, ecc);
-        persistent_ram_update_header_ecc(prz);
 
         return prz;
 err:
diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index 229641fb8e67..9d1aeb7e2734 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -1080,6 +1080,7 @@ restart:
                         goto restart;
                 }
 
+                xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR);
                 trace_xfs_alloc_size_neither(args);
                 args->agbno = NULLAGBLOCK;
                 return 0;
@@ -2441,7 +2442,7 @@ xfs_alloc_vextent(
         DECLARE_COMPLETION_ONSTACK(done);
 
         args->done = &done;
-        INIT_WORK(&args->work, xfs_alloc_vextent_worker);
+        INIT_WORK_ONSTACK(&args->work, xfs_alloc_vextent_worker);
         queue_work(xfs_alloc_wq, &args->work);
         wait_for_completion(&done);
         return args->result;
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index ae31c313a79e..8dad722c0041 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -981,10 +981,15 @@ xfs_vm_writepage(
                                 imap_valid = 0;
                         }
                 } else {
-                        if (PageUptodate(page)) {
+                        if (PageUptodate(page))
                                 ASSERT(buffer_mapped(bh));
-                                imap_valid = 0;
-                        }
+                        /*
+                         * This buffer is not uptodate and will not be
+                         * written to disk.  Ensure that we will put any
+                         * subsequent writeable buffers into a new
+                         * ioend.
+                         */
+                        imap_valid = 0;
                         continue;
                 }
 
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 172d3cc8f8cb..a4beb421018a 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -201,14 +201,7 @@ xfs_buf_alloc(
         bp->b_length = numblks;
         bp->b_io_length = numblks;
         bp->b_flags = flags;
-
-        /*
-         * We do not set the block number here in the buffer because we have not
-         * finished initialising the buffer. We insert the buffer into the cache
-         * in this state, so this ensures that we are unable to do IO on a
-         * buffer that hasn't been fully initialised.
-         */
-        bp->b_bn = XFS_BUF_DADDR_NULL;
+        bp->b_bn = blkno;
         atomic_set(&bp->b_pin_count, 0);
         init_waitqueue_head(&bp->b_waiters);
 
@@ -567,11 +560,6 @@ xfs_buf_get(
         if (bp != new_bp)
                 xfs_buf_free(new_bp);
 
-        /*
-         * Now we have a workable buffer, fill in the block number so
-         * that we can do IO on it.
-         */
-        bp->b_bn = blkno;
         bp->b_io_length = bp->b_length;
 
 found:
@@ -772,7 +760,7 @@ xfs_buf_get_uncached(
         int                     error, i;
         xfs_buf_t               *bp;
 
-        bp = xfs_buf_alloc(target, 0, numblks, 0);
+        bp = xfs_buf_alloc(target, XFS_BUF_DADDR_NULL, numblks, 0);
         if (unlikely(bp == NULL))
                 goto fail;
 
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 6cdbf90c6f7b..d041d47d9d86 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -505,6 +505,14 @@ xfs_inode_item_push(
         }
 
         /*
+         * Stale inode items should force out the iclog.
+         */
+        if (ip->i_flags & XFS_ISTALE) {
+                rval = XFS_ITEM_PINNED;
+                goto out_unlock;
+        }
+
+        /*
          * Someone else is already flushing the inode.  Nothing we can do
          * here but wait for the flush to finish and remove the item from
          * the AIL.
@@ -514,15 +522,6 @@ xfs_inode_item_push(
                 goto out_unlock;
         }
 
-        /*
-         * Stale inode items should force out the iclog.
-         */
-        if (ip->i_flags & XFS_ISTALE) {
-                xfs_ifunlock(ip);
-                xfs_iunlock(ip, XFS_ILOCK_SHARED);
-                return XFS_ITEM_PINNED;
-        }
-
         ASSERT(iip->ili_fields != 0 || XFS_FORCED_SHUTDOWN(ip->i_mount));
         ASSERT(iip->ili_logged == 0 || XFS_FORCED_SHUTDOWN(ip->i_mount));
 
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index f30d9807dc48..d90d4a388609 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -38,13 +38,21 @@
 kmem_zone_t     *xfs_log_ticket_zone;
 
 /* Local miscellaneous function prototypes */
-STATIC int       xlog_commit_record(struct log *log, struct xlog_ticket *ticket,
-                                    xlog_in_core_t **, xfs_lsn_t *);
+STATIC int
+xlog_commit_record(
+        struct xlog             *log,
+        struct xlog_ticket      *ticket,
+        struct xlog_in_core     **iclog,
+        xfs_lsn_t               *commitlsnp);
+
 STATIC xlog_t *  xlog_alloc_log(xfs_mount_t     *mp,
                                 xfs_buftarg_t   *log_target,
                                 xfs_daddr_t     blk_offset,
                                 int             num_bblks);
-STATIC int       xlog_space_left(struct log *log, atomic64_t *head);
+STATIC int
+xlog_space_left(
+        struct xlog             *log,
+        atomic64_t              *head);
 STATIC int       xlog_sync(xlog_t *log, xlog_in_core_t *iclog);
 STATIC void      xlog_dealloc_log(xlog_t *log);
 
@@ -64,8 +72,10 @@ STATIC void xlog_state_switch_iclogs(xlog_t		*log,
                                      int                eventual_size);
 STATIC void xlog_state_want_sync(xlog_t *log, xlog_in_core_t *iclog);
 
-STATIC void xlog_grant_push_ail(struct log      *log,
-                                int             need_bytes);
+STATIC void
+xlog_grant_push_ail(
+        struct xlog     *log,
+        int             need_bytes);
 STATIC void xlog_regrant_reserve_log_space(xlog_t        *log,
                                            xlog_ticket_t *ticket);
 STATIC void xlog_ungrant_log_space(xlog_t        *log,
@@ -73,7 +83,9 @@ STATIC void xlog_ungrant_log_space(xlog_t	 *log,
 
 #if defined(DEBUG)
 STATIC void     xlog_verify_dest_ptr(xlog_t *log, char *ptr);
-STATIC void     xlog_verify_grant_tail(struct log *log);
+STATIC void
+xlog_verify_grant_tail(
+        struct xlog     *log);
 STATIC void     xlog_verify_iclog(xlog_t *log, xlog_in_core_t *iclog,
                                   int count, boolean_t syncing);
 STATIC void     xlog_verify_tail_lsn(xlog_t *log, xlog_in_core_t *iclog,
@@ -89,9 +101,9 @@ STATIC int	xlog_iclogs_empty(xlog_t *log);
 
 static void
 xlog_grant_sub_space(
-        struct log      *log,
-        atomic64_t      *head,
-        int             bytes)
+        struct xlog             *log,
+        atomic64_t              *head,
+        int                     bytes)
 {
         int64_t head_val = atomic64_read(head);
         int64_t new, old;
@@ -115,9 +127,9 @@ xlog_grant_sub_space(
 
 static void
 xlog_grant_add_space(
-        struct log      *log,
-        atomic64_t      *head,
-        int             bytes)
+        struct xlog             *log,
+        atomic64_t              *head,
+        int                     bytes)
 {
         int64_t head_val = atomic64_read(head);
         int64_t new, old;
@@ -165,7 +177,7 @@ xlog_grant_head_wake_all(
 
 static inline int
 xlog_ticket_reservation(
-        struct log              *log,
+        struct xlog             *log,
         struct xlog_grant_head  *head,
         struct xlog_ticket      *tic)
 {
@@ -182,7 +194,7 @@ xlog_ticket_reservation(
 
 STATIC bool
 xlog_grant_head_wake(
-        struct log              *log,
+        struct xlog             *log,
         struct xlog_grant_head  *head,
         int                     *free_bytes)
 {
@@ -204,7 +216,7 @@ xlog_grant_head_wake(
 
 STATIC int
 xlog_grant_head_wait(
-        struct log              *log,
+        struct xlog             *log,
         struct xlog_grant_head  *head,
         struct xlog_ticket      *tic,
         int                     need_bytes)
@@ -256,7 +268,7 @@ shutdown:
  */
 STATIC int
 xlog_grant_head_check(
-        struct log              *log,
+        struct xlog             *log,
         struct xlog_grant_head  *head,
         struct xlog_ticket      *tic,
         int                     *need_bytes)
@@ -323,7 +335,7 @@ xfs_log_regrant(
         struct xfs_mount        *mp,
         struct xlog_ticket      *tic)
 {
-        struct log              *log = mp->m_log;
+        struct xlog             *log = mp->m_log;
         int                     need_bytes;
         int                     error = 0;
 
@@ -389,7 +401,7 @@ xfs_log_reserve(
         bool                    permanent,
         uint                    t_type)
 {
-        struct log              *log = mp->m_log;
+        struct xlog             *log = mp->m_log;
         struct xlog_ticket      *tic;
         int                     need_bytes;
         int                     error = 0;
@@ -465,7 +477,7 @@ xfs_log_done(
         struct xlog_in_core     **iclog,
         uint                    flags)
 {
-        struct log              *log = mp->m_log;
+        struct xlog             *log = mp->m_log;
         xfs_lsn_t               lsn = 0;
 
         if (XLOG_FORCED_SHUTDOWN(log) ||
@@ -810,6 +822,7 @@ xfs_log_unmount_write(xfs_mount_t *mp)
 void
 xfs_log_unmount(xfs_mount_t *mp)
 {
+        cancel_delayed_work_sync(&mp->m_sync_work);
         xfs_trans_ail_destroy(mp);
         xlog_dealloc_log(mp->m_log);
 }
@@ -838,7 +851,7 @@ void
 xfs_log_space_wake(
         struct xfs_mount        *mp)
 {
-        struct log              *log = mp->m_log;
+        struct xlog             *log = mp->m_log;
         int                     free_bytes;
 
         if (XLOG_FORCED_SHUTDOWN(log))
@@ -916,7 +929,7 @@ xfs_lsn_t
 xlog_assign_tail_lsn_locked(
         struct xfs_mount        *mp)
 {
-        struct log              *log = mp->m_log;
+        struct xlog             *log = mp->m_log;
         struct xfs_log_item     *lip;
         xfs_lsn_t               tail_lsn;
 
@@ -965,7 +978,7 @@ xlog_assign_tail_lsn(
  */
 STATIC int
 xlog_space_left(
-        struct log      *log,
+        struct xlog     *log,
         atomic64_t      *head)
 {
         int             free_bytes;
@@ -1277,7 +1290,7 @@ out:
  */
 STATIC int
 xlog_commit_record(
-        struct log              *log,
+        struct xlog             *log,
         struct xlog_ticket      *ticket,
         struct xlog_in_core     **iclog,
         xfs_lsn_t               *commitlsnp)
@@ -1311,7 +1324,7 @@ xlog_commit_record(
  */
 STATIC void
 xlog_grant_push_ail(
-        struct log      *log,
+        struct xlog     *log,
         int             need_bytes)
 {
         xfs_lsn_t       threshold_lsn = 0;
@@ -1790,7 +1803,7 @@ xlog_write_start_rec(
 
 static xlog_op_header_t *
 xlog_write_setup_ophdr(
-        struct log              *log,
+        struct xlog             *log,
         struct xlog_op_header   *ophdr,
         struct xlog_ticket      *ticket,
         uint                    flags)
@@ -1873,7 +1886,7 @@ xlog_write_setup_copy(
 
 static int
 xlog_write_copy_finish(
-        struct log              *log,
+        struct xlog             *log,
         struct xlog_in_core     *iclog,
         uint                    flags,
         int                     *record_cnt,
@@ -1958,7 +1971,7 @@ xlog_write_copy_finish(
  */
 int
 xlog_write(
-        struct log              *log,
+        struct xlog             *log,
         struct xfs_log_vec      *log_vector,
         struct xlog_ticket      *ticket,
         xfs_lsn_t               *start_lsn,
@@ -2821,7 +2834,7 @@ _xfs_log_force(
         uint                    flags,
         int                     *log_flushed)
 {
-        struct log              *log = mp->m_log;
+        struct xlog             *log = mp->m_log;
         struct xlog_in_core     *iclog;
         xfs_lsn_t               lsn;
 
@@ -2969,7 +2982,7 @@ _xfs_log_force_lsn(
         uint                    flags,
         int                     *log_flushed)
 {
-        struct log              *log = mp->m_log;
+        struct xlog             *log = mp->m_log;
         struct xlog_in_core     *iclog;
         int                     already_slept = 0;
 
@@ -3147,7 +3160,7 @@ xfs_log_ticket_get(
  */
 xlog_ticket_t *
 xlog_ticket_alloc(
-        struct log      *log,
+        struct xlog     *log,
         int             unit_bytes,
         int             cnt,
         char            client,
@@ -3278,7 +3291,7 @@ xlog_ticket_alloc(
  */
 void
 xlog_verify_dest_ptr(
-        struct log      *log,
+        struct xlog     *log,
         char            *ptr)
 {
         int i;
@@ -3307,7 +3320,7 @@ xlog_verify_dest_ptr(
  */
 STATIC void
 xlog_verify_grant_tail(
-        struct log      *log)
+        struct xlog     *log)
 {
         int             tail_cycle, tail_blocks;
         int             cycle, space;
diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c
index 7d6197c58493..ddc4529d07d3 100644
--- a/fs/xfs/xfs_log_cil.c
+++ b/fs/xfs/xfs_log_cil.c
@@ -44,7 +44,7 @@
  */
 static struct xlog_ticket *
 xlog_cil_ticket_alloc(
-        struct log      *log)
+        struct xlog     *log)
 {
         struct xlog_ticket *tic;
 
@@ -72,7 +72,7 @@ xlog_cil_ticket_alloc(
  */
 void
 xlog_cil_init_post_recovery(
-        struct log      *log)
+        struct xlog     *log)
 {
         log->l_cilp->xc_ctx->ticket = xlog_cil_ticket_alloc(log);
         log->l_cilp->xc_ctx->sequence = 1;
@@ -182,7 +182,7 @@ xlog_cil_prepare_log_vecs(
  */
 STATIC void
 xfs_cil_prepare_item(
-        struct log              *log,
+        struct xlog             *log,
         struct xfs_log_vec      *lv,
         int                     *len,
         int                     *diff_iovecs)
@@ -231,7 +231,7 @@ xfs_cil_prepare_item(
  */
 static void
 xlog_cil_insert_items(
-        struct log              *log,
+        struct xlog             *log,
         struct xfs_log_vec      *log_vector,
         struct xlog_ticket      *ticket)
 {
@@ -373,7 +373,7 @@ xlog_cil_committed(
  */
 STATIC int
 xlog_cil_push(
-        struct log              *log)
+        struct xlog             *log)
 {
         struct xfs_cil          *cil = log->l_cilp;
         struct xfs_log_vec      *lv;
@@ -601,7 +601,7 @@ xlog_cil_push_work(
  */
 static void
 xlog_cil_push_background(
-        struct log      *log)
+        struct xlog     *log)
 {
         struct xfs_cil  *cil = log->l_cilp;
 
@@ -629,7 +629,7 @@ xlog_cil_push_background(
 
 static void
 xlog_cil_push_foreground(
-        struct log      *log,
+        struct xlog     *log,
         xfs_lsn_t       push_seq)
 {
         struct xfs_cil  *cil = log->l_cilp;
@@ -683,7 +683,7 @@ xfs_log_commit_cil(
         xfs_lsn_t               *commit_lsn,
         int                     flags)
 {
-        struct log              *log = mp->m_log;
+        struct xlog             *log = mp->m_log;
         int                     log_flags = 0;
         struct xfs_log_vec      *log_vector;
 
@@ -754,7 +754,7 @@ xfs_log_commit_cil(
  */
 xfs_lsn_t
 xlog_cil_force_lsn(
-        struct log      *log,
+        struct xlog     *log,
         xfs_lsn_t       sequence)
 {
         struct xfs_cil          *cil = log->l_cilp;
@@ -833,7 +833,7 @@ xfs_log_item_in_current_chkpt(
  */
 int
 xlog_cil_init(
-        struct log      *log)
+        struct xlog     *log)
 {
         struct xfs_cil  *cil;
         struct xfs_cil_ctx *ctx;
@@ -869,7 +869,7 @@ xlog_cil_init(
 
 void
 xlog_cil_destroy(
-        struct log      *log)
+        struct xlog     *log)
 {
         if (log->l_cilp->xc_ctx) {
                 if (log->l_cilp->xc_ctx->ticket)
diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h
index 5bc33261f5be..72eba2201b14 100644
--- a/fs/xfs/xfs_log_priv.h
+++ b/fs/xfs/xfs_log_priv.h
@@ -19,7 +19,7 @@
 #define __XFS_LOG_PRIV_H__
 
 struct xfs_buf;
-struct log;
+struct xlog;
 struct xlog_ticket;
 struct xfs_mount;
 
@@ -352,7 +352,7 @@ typedef struct xlog_in_core {
         struct xlog_in_core     *ic_next;
         struct xlog_in_core     *ic_prev;
         struct xfs_buf          *ic_bp;
-        struct log              *ic_log;
+        struct xlog             *ic_log;
         int                     ic_size;
         int                     ic_offset;
         int                     ic_bwritecnt;
@@ -409,7 +409,7 @@ struct xfs_cil_ctx {
  * operations almost as efficient as the old logging methods.
  */
 struct xfs_cil {
-        struct log              *xc_log;
+        struct xlog             *xc_log;
         struct list_head        xc_cil;
         spinlock_t              xc_cil_lock;
         struct xfs_cil_ctx      *xc_ctx;
@@ -487,7 +487,7 @@ struct xlog_grant_head {
  * overflow 31 bits worth of byte offset, so using a byte number will mean
  * that round off problems won't occur when releasing partial reservations.
  */
-typedef struct log {
+typedef struct xlog {
         /* The following fields don't need locking */
         struct xfs_mount        *l_mp;          /* mount point */
         struct xfs_ail          *l_ailp;        /* AIL log is working with */
@@ -553,9 +553,14 @@ extern int	 xlog_recover_finish(xlog_t *log);
 extern void      xlog_pack_data(xlog_t *log, xlog_in_core_t *iclog, int);
 
 extern kmem_zone_t *xfs_log_ticket_zone;
-struct xlog_ticket *xlog_ticket_alloc(struct log *log, int unit_bytes,
-                                int count, char client, bool permanent,
-                                xfs_km_flags_t alloc_flags);
+struct xlog_ticket *
+xlog_ticket_alloc(
+        struct xlog     *log,
+        int             unit_bytes,
+        int             count,
+        char            client,
+        bool            permanent,
+        xfs_km_flags_t  alloc_flags);
 
 
 static inline void
@@ -567,9 +572,14 @@ xlog_write_adv_cnt(void **ptr, int *len, int *off, size_t bytes)
 }
 
 void    xlog_print_tic_res(struct xfs_mount *mp, struct xlog_ticket *ticket);
-int     xlog_write(struct log *log, struct xfs_log_vec *log_vector,
-                                struct xlog_ticket *tic, xfs_lsn_t *start_lsn,
-                                xlog_in_core_t **commit_iclog, uint flags);
+int
+xlog_write(
+        struct xlog             *log,
+        struct xfs_log_vec      *log_vector,
+        struct xlog_ticket      *tic,
+        xfs_lsn_t               *start_lsn,
+        struct xlog_in_core     **commit_iclog,
+        uint                    flags);
 
 /*
  * When we crack an atomic LSN, we sample it first so that the value will not
@@ -629,17 +639,23 @@ xlog_assign_grant_head(atomic64_t *head, int cycle, int space)
 /*
  * Committed Item List interfaces
  */
-int     xlog_cil_init(struct log *log);
-void    xlog_cil_init_post_recovery(struct log *log);
-void    xlog_cil_destroy(struct log *log);
+int
+xlog_cil_init(struct xlog *log);
+void
+xlog_cil_init_post_recovery(struct xlog *log);
+void
+xlog_cil_destroy(struct xlog *log);
 
 /*
  * CIL force routines
  */
-xfs_lsn_t xlog_cil_force_lsn(struct log *log, xfs_lsn_t sequence);
+xfs_lsn_t
+xlog_cil_force_lsn(
+        struct xlog *log,
+        xfs_lsn_t sequence);
 
 static inline void
-xlog_cil_force(struct log *log)
+xlog_cil_force(struct xlog *log)
 {
         xlog_cil_force_lsn(log, log->l_cilp->xc_current_sequence);
 }
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index ca386909131a..a7be98abd6a9 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -1471,8 +1471,8 @@ xlog_recover_add_item(
 
 STATIC int
 xlog_recover_add_to_cont_trans(
-        struct log              *log,
-        xlog_recover_t          *trans,
+        struct xlog             *log,
+        struct xlog_recover     *trans,
         xfs_caddr_t             dp,
         int                     len)
 {
@@ -1517,8 +1517,8 @@ xlog_recover_add_to_cont_trans(
  */
 STATIC int
 xlog_recover_add_to_trans(
-        struct log              *log,
-        xlog_recover_t          *trans,
+        struct xlog             *log,
+        struct xlog_recover     *trans,
         xfs_caddr_t             dp,
         int                     len)
 {
@@ -1588,8 +1588,8 @@ xlog_recover_add_to_trans(
  */
 STATIC int
 xlog_recover_reorder_trans(
-        struct log              *log,
-        xlog_recover_t          *trans,
+        struct xlog             *log,
+        struct xlog_recover     *trans,
         int                     pass)
 {
         xlog_recover_item_t     *item, *n;
@@ -1642,8 +1642,8 @@ xlog_recover_reorder_trans(
  */
 STATIC int
 xlog_recover_buffer_pass1(
-        struct log              *log,
-        xlog_recover_item_t     *item)
+        struct xlog                     *log,
+        struct xlog_recover_item        *item)
 {
         xfs_buf_log_format_t    *buf_f = item->ri_buf[0].i_addr;
         struct list_head        *bucket;
@@ -1696,7 +1696,7 @@ xlog_recover_buffer_pass1(
  */
 STATIC int
 xlog_check_buffer_cancelled(
-        struct log              *log,
+        struct xlog             *log,
         xfs_daddr_t             blkno,
         uint                    len,
         ushort                  flags)
@@ -2689,9 +2689,9 @@ xlog_recover_free_trans(
 
 STATIC int
 xlog_recover_commit_pass1(
-        struct log              *log,
-        struct xlog_recover     *trans,
-        xlog_recover_item_t     *item)
+        struct xlog                     *log,
+        struct xlog_recover             *trans,
+        struct xlog_recover_item        *item)
 {
         trace_xfs_log_recover_item_recover(log, trans, item, XLOG_RECOVER_PASS1);
 
@@ -2716,10 +2716,10 @@ xlog_recover_commit_pass1(
 
 STATIC int
 xlog_recover_commit_pass2(
-        struct log              *log,
-        struct xlog_recover     *trans,
-        struct list_head        *buffer_list,
-        xlog_recover_item_t     *item)
+        struct xlog                     *log,
+        struct xlog_recover             *trans,
+        struct list_head                *buffer_list,
+        struct xlog_recover_item        *item)
 {
         trace_xfs_log_recover_item_recover(log, trans, item, XLOG_RECOVER_PASS2);
 
@@ -2753,7 +2753,7 @@ xlog_recover_commit_pass2(
  */
 STATIC int
 xlog_recover_commit_trans(
-        struct log              *log,
+        struct xlog             *log,
         struct xlog_recover     *trans,
         int                     pass)
 {
@@ -2793,8 +2793,8 @@ out:
 
 STATIC int
 xlog_recover_unmount_trans(
-        struct log              *log,
-        xlog_recover_t          *trans)
+        struct xlog             *log,
+        struct xlog_recover     *trans)
 {
         /* Do nothing now */
         xfs_warn(log->l_mp, "%s: Unmount LR", __func__);
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 8b89c5ac72d9..90c1fc9eaea4 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -53,7 +53,7 @@ typedef struct xfs_trans_reservations {
 
 #include "xfs_sync.h"
 
-struct log;
+struct xlog;
 struct xfs_mount_args;
 struct xfs_inode;
 struct xfs_bmbt_irec;
@@ -133,7 +133,7 @@ typedef struct xfs_mount {
         uint                    m_readio_blocks; /* min read size blocks */
         uint                    m_writeio_log;  /* min write size log bytes */
         uint                    m_writeio_blocks; /* min write size blocks */
-        struct log              *m_log;         /* log specific stuff */
+        struct xlog             *m_log;         /* log specific stuff */
         int                     m_logbufs;      /* number of log buffers */
         int                     m_logbsize;     /* size of each log buffer */
         uint                    m_rsumlevels;   /* rt summary levels */
diff --git a/fs/xfs/xfs_sync.c b/fs/xfs/xfs_sync.c
index c9d3409c5ca3..1e9ee064dbb2 100644
--- a/fs/xfs/xfs_sync.c
+++ b/fs/xfs/xfs_sync.c
@@ -386,23 +386,23 @@ xfs_sync_worker(
          * We shouldn't write/force the log if we are in the mount/unmount
          * process or on a read only filesystem. The workqueue still needs to be
          * active in both cases, however, because it is used for inode reclaim
-         * during these times.  Use the s_umount semaphore to provide exclusion
-         * with unmount.
+         * during these times.  Use the MS_ACTIVE flag to avoid doing anything
+         * during mount.  Doing work during unmount is avoided by calling
+         * cancel_delayed_work_sync on this work queue before tearing down
+         * the ail and the log in xfs_log_unmount.
          */
-        if (down_read_trylock(&mp->m_super->s_umount)) {
-                if (!(mp->m_flags & XFS_MOUNT_RDONLY)) {
-                        /* dgc: errors ignored here */
-                        if (mp->m_super->s_frozen == SB_UNFROZEN &&
-                            xfs_log_need_covered(mp))
-                                error = xfs_fs_log_dummy(mp);
-                        else
-                                xfs_log_force(mp, 0);
-
-                        /* start pushing all the metadata that is currently
-                         * dirty */
-                        xfs_ail_push_all(mp->m_ail);
-                }
-                up_read(&mp->m_super->s_umount);
+        if (!(mp->m_super->s_flags & MS_ACTIVE) &&
+            !(mp->m_flags & XFS_MOUNT_RDONLY)) {
+                /* dgc: errors ignored here */
+                if (mp->m_super->s_frozen == SB_UNFROZEN &&
+                    xfs_log_need_covered(mp))
+                        error = xfs_fs_log_dummy(mp);
+                else
+                        xfs_log_force(mp, 0);
+
+                /* start pushing all the metadata that is currently
+                 * dirty */
+                xfs_ail_push_all(mp->m_ail);
         }
 
         /* queue us up again */
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
index 7cf9d3529e51..caf5dabfd553 100644
--- a/fs/xfs/xfs_trace.h
+++ b/fs/xfs/xfs_trace.h
@@ -32,7 +32,7 @@ struct xfs_da_node_entry;
 struct xfs_dquot;
 struct xfs_log_item;
 struct xlog_ticket;
-struct log;
+struct xlog;
 struct xlog_recover;
 struct xlog_recover_item;
 struct xfs_buf_log_format;
@@ -762,7 +762,7 @@ DEFINE_DQUOT_EVENT(xfs_dqflush_force);
 DEFINE_DQUOT_EVENT(xfs_dqflush_done);
 
 DECLARE_EVENT_CLASS(xfs_loggrant_class,
-        TP_PROTO(struct log *log, struct xlog_ticket *tic),
+        TP_PROTO(struct xlog *log, struct xlog_ticket *tic),
         TP_ARGS(log, tic),
         TP_STRUCT__entry(
                 __field(dev_t, dev)
@@ -830,7 +830,7 @@ DECLARE_EVENT_CLASS(xfs_loggrant_class,
 
 #define DEFINE_LOGGRANT_EVENT(name) \
 DEFINE_EVENT(xfs_loggrant_class, name, \
-        TP_PROTO(struct log *log, struct xlog_ticket *tic), \
+        TP_PROTO(struct xlog *log, struct xlog_ticket *tic), \
         TP_ARGS(log, tic))
 DEFINE_LOGGRANT_EVENT(xfs_log_done_nonperm);
 DEFINE_LOGGRANT_EVENT(xfs_log_done_perm);
@@ -1664,7 +1664,7 @@ DEFINE_SWAPEXT_EVENT(xfs_swap_extent_before);
 DEFINE_SWAPEXT_EVENT(xfs_swap_extent_after);
 
 DECLARE_EVENT_CLASS(xfs_log_recover_item_class,
-        TP_PROTO(struct log *log, struct xlog_recover *trans,
+        TP_PROTO(struct xlog *log, struct xlog_recover *trans,
                 struct xlog_recover_item *item, int pass),
         TP_ARGS(log, trans, item, pass),
         TP_STRUCT__entry(
@@ -1698,7 +1698,7 @@ DECLARE_EVENT_CLASS(xfs_log_recover_item_class,
 
 #define DEFINE_LOG_RECOVER_ITEM(name) \
 DEFINE_EVENT(xfs_log_recover_item_class, name, \
-        TP_PROTO(struct log *log, struct xlog_recover *trans, \
+        TP_PROTO(struct xlog *log, struct xlog_recover *trans, \
                 struct xlog_recover_item *item, int pass), \
         TP_ARGS(log, trans, item, pass))
 
@@ -1709,7 +1709,7 @@ DEFINE_LOG_RECOVER_ITEM(xfs_log_recover_item_reorder_tail);
 DEFINE_LOG_RECOVER_ITEM(xfs_log_recover_item_recover);
 
 DECLARE_EVENT_CLASS(xfs_log_recover_buf_item_class,
-        TP_PROTO(struct log *log, struct xfs_buf_log_format *buf_f),
+        TP_PROTO(struct xlog *log, struct xfs_buf_log_format *buf_f),
         TP_ARGS(log, buf_f),
         TP_STRUCT__entry(
                 __field(dev_t, dev)
@@ -1739,7 +1739,7 @@ DECLARE_EVENT_CLASS(xfs_log_recover_buf_item_class,
 
 #define DEFINE_LOG_RECOVER_BUF_ITEM(name) \
 DEFINE_EVENT(xfs_log_recover_buf_item_class, name, \
-        TP_PROTO(struct log *log, struct xfs_buf_log_format *buf_f), \
+        TP_PROTO(struct xlog *log, struct xfs_buf_log_format *buf_f), \
         TP_ARGS(log, buf_f))
 
 DEFINE_LOG_RECOVER_BUF_ITEM(xfs_log_recover_buf_not_cancel);
@@ -1752,7 +1752,7 @@ DEFINE_LOG_RECOVER_BUF_ITEM(xfs_log_recover_buf_reg_buf);
 DEFINE_LOG_RECOVER_BUF_ITEM(xfs_log_recover_buf_dquot_buf);
 
 DECLARE_EVENT_CLASS(xfs_log_recover_ino_item_class,
-        TP_PROTO(struct log *log, struct xfs_inode_log_format *in_f),
+        TP_PROTO(struct xlog *log, struct xfs_inode_log_format *in_f),
         TP_ARGS(log, in_f),
         TP_STRUCT__entry(
                 __field(dev_t, dev)
@@ -1790,7 +1790,7 @@ DECLARE_EVENT_CLASS(xfs_log_recover_ino_item_class,
 )
 #define DEFINE_LOG_RECOVER_INO_ITEM(name) \
 DEFINE_EVENT(xfs_log_recover_ino_item_class, name, \
-        TP_PROTO(struct log *log, struct xfs_inode_log_format *in_f), \
+        TP_PROTO(struct xlog *log, struct xfs_inode_log_format *in_f), \
         TP_ARGS(log, in_f))
 
 DEFINE_LOG_RECOVER_INO_ITEM(xfs_log_recover_inode_recover);
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 6f2b45a9b6bc..ff4947b7a976 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -484,6 +484,16 @@ static inline int pmd_none_or_trans_huge_or_clear_bad(pmd_t *pmd)
         /*
          * The barrier will stabilize the pmdval in a register or on
          * the stack so that it will stop changing under the code.
+         *
+         * When CONFIG_TRANSPARENT_HUGEPAGE=y on x86 32bit PAE,
+         * pmd_read_atomic is allowed to return a not atomic pmdval
+         * (for example pointing to an hugepage that has never been
+         * mapped in the pmd). The below checks will only care about
+         * the low part of the pmd with 32bit PAE x86 anyway, with the
+         * exception of pmd_none(). So the important thing is that if
+         * the low part of the pmd is found null, the high part will
+         * be also null or the pmd_none() check below would be
+         * confused.
          */
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
         barrier();
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index e5834aa24b9e..6a6d7aefe12d 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -47,9 +47,9 @@
  */
 #if !defined(CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING) || \
     !defined(CONFIG_OPTIMIZE_INLINING) || (__GNUC__ < 4)
-# define inline         inline          __attribute__((always_inline))
-# define __inline__     __inline__      __attribute__((always_inline))
-# define __inline       __inline        __attribute__((always_inline))
+# define inline         inline          __attribute__((always_inline)) notrace
+# define __inline__     __inline__      __attribute__((always_inline)) notrace
+# define __inline       __inline        __attribute__((always_inline)) notrace
 #else
 /* A lot of inline functions can cause havoc with function tracing */
 # define inline         inline          notrace
diff --git a/include/linux/kmsg_dump.h b/include/linux/kmsg_dump.h
index 35f7237ec972..d6bd50110ec2 100644
--- a/include/linux/kmsg_dump.h
+++ b/include/linux/kmsg_dump.h
@@ -21,6 +21,7 @@
  * is passed to the kernel.
  */
 enum kmsg_dump_reason {
+        KMSG_DUMP_UNDEF,
         KMSG_DUMP_PANIC,
         KMSG_DUMP_OOPS,
         KMSG_DUMP_EMERG,
@@ -31,23 +32,37 @@ enum kmsg_dump_reason {
 
 /**
  * struct kmsg_dumper - kernel crash message dumper structure
- * @dump:       The callback which gets called on crashes. The buffer is passed
- *              as two sections, where s1 (length l1) contains the older
- *              messages and s2 (length l2) contains the newer.
  * @list:       Entry in the dumper list (private)
+ * @dump:       Call into dumping code which will retrieve the data with
+ *              through the record iterator
+ * @max_reason: filter for highest reason number that should be dumped
  * @registered: Flag that specifies if this is already registered
  */
 struct kmsg_dumper {
-        void (*dump)(struct kmsg_dumper *dumper, enum kmsg_dump_reason reason,
-                        const char *s1, unsigned long l1,
-                        const char *s2, unsigned long l2);
         struct list_head list;
-        int registered;
+        void (*dump)(struct kmsg_dumper *dumper, enum kmsg_dump_reason reason);
+        enum kmsg_dump_reason max_reason;
+        bool active;
+        bool registered;
+
+        /* private state of the kmsg iterator */
+        u32 cur_idx;
+        u32 next_idx;
+        u64 cur_seq;
+        u64 next_seq;
 };
 
 #ifdef CONFIG_PRINTK
 void kmsg_dump(enum kmsg_dump_reason reason);
 
+bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog,
+                        char *line, size_t size, size_t *len);
+
+bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog,
+                          char *buf, size_t size, size_t *len);
+
+void kmsg_dump_rewind(struct kmsg_dumper *dumper);
+
 int kmsg_dump_register(struct kmsg_dumper *dumper);
 
 int kmsg_dump_unregister(struct kmsg_dumper *dumper);
@@ -56,6 +71,22 @@ static inline void kmsg_dump(enum kmsg_dump_reason reason)
 {
 }
 
+static inline bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog,
+                                const char *line, size_t size, size_t *len)
+{
+        return false;
+}
+
+static inline bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog,
+                                        char *buf, size_t size, size_t *len)
+{
+        return false;
+}
+
+static inline void kmsg_dump_rewind(struct kmsg_dumper *dumper)
+{
+}
+
 static inline int kmsg_dump_register(struct kmsg_dumper *dumper)
 {
         return -EINVAL;
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index dad95bdd06d7..704a626d94a0 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -57,8 +57,18 @@ struct page {
                 };
 
                 union {
+#if defined(CONFIG_HAVE_CMPXCHG_DOUBLE) && \
+        defined(CONFIG_HAVE_ALIGNED_STRUCT_PAGE)
                         /* Used for cmpxchg_double in slub */
                         unsigned long counters;
+#else
+                        /*
+                         * Keep _count separate from slub cmpxchg_double data.
+                         * As the rest of the double word is protected by
+                         * slab_lock but _count is not.
+                         */
+                        unsigned counters;
+#endif
 
                         struct {
 
diff --git a/include/linux/mmc/sdhci-spear.h b/include/linux/mmc/sdhci-spear.h
index 5cdc96da9dd5..e78c0e236e9d 100644
--- a/include/linux/mmc/sdhci-spear.h
+++ b/include/linux/mmc/sdhci-spear.h
@@ -4,7 +4,7 @@
  * SDHCI declarations specific to ST SPEAr platform
  *
  * Copyright (C) 2010 ST Microelectronics
- * Viresh Kumar<viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index fbb78fb09bd2..f58325a1d8fb 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -25,6 +25,7 @@ struct nfs41_impl_id;
  */
 struct nfs_client {
         atomic_t                cl_count;
+        atomic_t                cl_mds_count;
         int                     cl_cons_state;  /* current construction state (-ve: init error) */
 #define NFS_CS_READY            0               /* ready to be used */
 #define NFS_CS_INITING          1               /* busy initialising */
diff --git a/include/linux/pata_arasan_cf_data.h b/include/linux/pata_arasan_cf_data.h
index a6ee9aa898bb..a7b4fc386e63 100644
--- a/include/linux/pata_arasan_cf_data.h
+++ b/include/linux/pata_arasan_cf_data.h
@@ -4,7 +4,7 @@
  * Arasan Compact Flash host controller platform data header file
  *
  * Copyright (C) 2011 ST Microelectronics
- * Viresh Kumar <viresh.kumar@st.com>
+ * Viresh Kumar <viresh.linux@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
diff --git a/include/linux/pstore_ram.h b/include/linux/pstore_ram.h
index 7ed7fd4dba49..3b823d49a85a 100644
--- a/include/linux/pstore_ram.h
+++ b/include/linux/pstore_ram.h
@@ -69,12 +69,14 @@ struct persistent_ram_zone * __init persistent_ram_new(phys_addr_t start,
                                                        size_t size,
                                                        bool ecc);
 void persistent_ram_free(struct persistent_ram_zone *prz);
+void persistent_ram_zap(struct persistent_ram_zone *prz);
 struct persistent_ram_zone *persistent_ram_init_ringbuffer(struct device *dev,
                 bool ecc);
 
 int persistent_ram_write(struct persistent_ram_zone *prz, const void *s,
         unsigned int count);
 
+void persistent_ram_save_old(struct persistent_ram_zone *prz);
 size_t persistent_ram_old_size(struct persistent_ram_zone *prz);
 void *persistent_ram_old(struct persistent_ram_zone *prz);
 void persistent_ram_free_old(struct persistent_ram_zone *prz);
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 72fcd3069a90..2097684cf194 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -255,12 +255,17 @@ int cgroup_lock_is_held(void)
 
 EXPORT_SYMBOL_GPL(cgroup_lock_is_held);
 
+static int css_unbias_refcnt(int refcnt)
+{
+        return refcnt >= 0 ? refcnt : refcnt - CSS_DEACT_BIAS;
+}
+
 /* the current nr of refs, always >= 0 whether @css is deactivated or not */
 static int css_refcnt(struct cgroup_subsys_state *css)
 {
         int v = atomic_read(&css->refcnt);
 
-        return v >= 0 ? v : v - CSS_DEACT_BIAS;
+        return css_unbias_refcnt(v);
 }
 
 /* convenient tests for these bits */
@@ -4982,10 +4987,12 @@ EXPORT_SYMBOL_GPL(__css_tryget);
 void __css_put(struct cgroup_subsys_state *css)
 {
         struct cgroup *cgrp = css->cgroup;
+        int v;
 
         rcu_read_lock();
-        atomic_dec(&css->refcnt);
-        switch (css_refcnt(css)) {
+        v = css_unbias_refcnt(atomic_dec_return(&css->refcnt));
+
+        switch (v) {
         case 1:
                 if (notify_on_release(cgrp)) {
                         set_bit(CGRP_RELEASABLE, &cgrp->flags);
diff --git a/kernel/events/core.c b/kernel/events/core.c
index f85c0154b333..d7d71d6ec972 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -253,9 +253,9 @@ perf_cgroup_match(struct perf_event *event)
         return !event->cgrp || event->cgrp == cpuctx->cgrp;
 }
 
-static inline void perf_get_cgroup(struct perf_event *event)
+static inline bool perf_tryget_cgroup(struct perf_event *event)
 {
-        css_get(&event->cgrp->css);
+        return css_tryget(&event->cgrp->css);
 }
 
 static inline void perf_put_cgroup(struct perf_event *event)
@@ -484,7 +484,11 @@ static inline int perf_cgroup_connect(int fd, struct perf_event *event,
         event->cgrp = cgrp;
 
         /* must be done before we fput() the file */
-        perf_get_cgroup(event);
+        if (!perf_tryget_cgroup(event)) {
+                event->cgrp = NULL;
+                ret = -ENOENT;
+                goto out;
+        }
 
         /*
          * all events in a group must monitor
diff --git a/kernel/exit.c b/kernel/exit.c
index 34867cc5b42a..2f59cc334516 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -72,6 +72,18 @@ static void __unhash_process(struct task_struct *p, bool group_dead)
                 list_del_rcu(&p->tasks);
                 list_del_init(&p->sibling);
                 __this_cpu_dec(process_counts);
+                /*
+                 * If we are the last child process in a pid namespace to be
+                 * reaped, notify the reaper sleeping zap_pid_ns_processes().
+                 */
+                if (IS_ENABLED(CONFIG_PID_NS)) {
+                        struct task_struct *parent = p->real_parent;
+
+                        if ((task_active_pid_ns(parent)->child_reaper == parent) &&
+                            list_empty(&parent->children) &&
+                            (parent->flags & PF_EXITING))
+                                wake_up_process(parent);
+                }
         }
         list_del_rcu(&p->thread_group);
 }
@@ -643,6 +655,7 @@ static void exit_mm(struct task_struct * tsk)
         mm_release(tsk, mm);
         if (!mm)
                 return;
+        sync_mm_rss(mm);
         /*
          * Serialize with any possible pending coredump.
          * We must hold mmap_sem around checking core_state
@@ -719,12 +732,6 @@ static struct task_struct *find_new_reaper(struct task_struct *father)
 
                 zap_pid_ns_processes(pid_ns);
                 write_lock_irq(&tasklist_lock);
-                /*
-                 * We can not clear ->child_reaper or leave it alone.
-                 * There may by stealth EXIT_DEAD tasks on ->children,
-                 * forget_original_parent() must move them somewhere.
-                 */
-                pid_ns->child_reaper = init_pid_ns.child_reaper;
         } else if (father->signal->has_child_subreaper) {
                 struct task_struct *reaper;
 
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index 16b20e38c4a1..b3c7fd554250 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -184,11 +184,31 @@ void zap_pid_ns_processes(struct pid_namespace *pid_ns)
         }
         read_unlock(&tasklist_lock);
 
+        /* Firstly reap the EXIT_ZOMBIE children we may have. */
         do {
                 clear_thread_flag(TIF_SIGPENDING);
                 rc = sys_wait4(-1, NULL, __WALL, NULL);
         } while (rc != -ECHILD);
 
+        /*
+         * sys_wait4() above can't reap the TASK_DEAD children.
+         * Make sure they all go away, see __unhash_process().
+         */
+        for (;;) {
+                bool need_wait = false;
+
+                read_lock(&tasklist_lock);
+                if (!list_empty(&current->children)) {
+                        __set_current_state(TASK_UNINTERRUPTIBLE);
+                        need_wait = true;
+                }
+                read_unlock(&tasklist_lock);
+
+                if (!need_wait)
+                        break;
+                schedule();
+        }
+
         if (pid_ns->reboot)
                 current->signal->group_exit_code = pid_ns->reboot;
 
diff --git a/kernel/printk.c b/kernel/printk.c
index 32462d2b364a..a2276b916769 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -227,10 +227,10 @@ static u32 clear_idx;
 #define LOG_LINE_MAX 1024
 
 /* record buffer */
-#if !defined(CONFIG_64BIT) || defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
 #define LOG_ALIGN 4
 #else
-#define LOG_ALIGN 8
+#define LOG_ALIGN __alignof__(struct log)
 #endif
 #define __LOG_BUF_LEN (1 << CONFIG_LOG_BUF_SHIFT)
 static char __log_buf[__LOG_BUF_LEN] __aligned(LOG_ALIGN);
@@ -414,7 +414,9 @@ static ssize_t devkmsg_read(struct file *file, char __user *buf,
         if (!user)
                 return -EBADF;
 
-        mutex_lock(&user->lock);
+        ret = mutex_lock_interruptible(&user->lock);
+        if (ret)
+                return ret;
         raw_spin_lock(&logbuf_lock);
         while (user->seq == log_next_seq) {
                 if (file->f_flags & O_NONBLOCK) {
@@ -878,7 +880,9 @@ static int syslog_print(char __user *buf, int size)
         syslog_seq++;
         raw_spin_unlock_irq(&logbuf_lock);
 
-        if (len > 0 && copy_to_user(buf, text, len))
+        if (len > size)
+                len = -EINVAL;
+        else if (len > 0 && copy_to_user(buf, text, len))
                 len = -EFAULT;
 
         kfree(text);
@@ -909,7 +913,7 @@ static int syslog_print_all(char __user *buf, int size, bool clear)
                 /*
                  * Find first record that fits, including all following records,
                  * into the user-provided buffer for this dump.
-                */
+                 */
                 seq = clear_seq;
                 idx = clear_idx;
                 while (seq < log_next_seq) {
@@ -919,6 +923,8 @@ static int syslog_print_all(char __user *buf, int size, bool clear)
                         idx = log_next(idx);
                         seq++;
                 }
+
+                /* move first record forward until length fits into the buffer */
                 seq = clear_seq;
                 idx = clear_idx;
                 while (len > size && seq < log_next_seq) {
@@ -929,7 +935,7 @@ static int syslog_print_all(char __user *buf, int size, bool clear)
                         seq++;
                 }
 
-                /* last message in this dump */
+                /* last message fitting into this dump */
                 next_seq = log_next_seq;
 
                 len = 0;
@@ -974,6 +980,7 @@ int do_syslog(int type, char __user *buf, int len, bool from_file)
 {
         bool clear = false;
         static int saved_console_loglevel = -1;
+        static DEFINE_MUTEX(syslog_mutex);
         int error;
 
         error = check_syslog_permissions(type, from_file);
@@ -1000,11 +1007,17 @@ int do_syslog(int type, char __user *buf, int len, bool from_file)
                         error = -EFAULT;
                         goto out;
                 }
+                error = mutex_lock_interruptible(&syslog_mutex);
+                if (error)
+                        goto out;
                 error = wait_event_interruptible(log_wait,
                                                  syslog_seq != log_next_seq);
-                if (error)
+                if (error) {
+                        mutex_unlock(&syslog_mutex);
                         goto out;
+                }
                 error = syslog_print(buf, len);
+                mutex_unlock(&syslog_mutex);
                 break;
         /* Read/clear last kernel messages */
         case SYSLOG_ACTION_READ_CLEAR:
@@ -2300,48 +2313,210 @@ module_param_named(always_kmsg_dump, always_kmsg_dump, bool, S_IRUGO | S_IWUSR);
  * kmsg_dump - dump kernel log to kernel message dumpers.
  * @reason: the reason (oops, panic etc) for dumping
  *
- * Iterate through each of the dump devices and call the oops/panic
- * callbacks with the log buffer.
+ * Call each of the registered dumper's dump() callback, which can
+ * retrieve the kmsg records with kmsg_dump_get_line() or
+ * kmsg_dump_get_buffer().
  */
 void kmsg_dump(enum kmsg_dump_reason reason)
 {
-        u64 idx;
         struct kmsg_dumper *dumper;
-        const char *s1, *s2;
-        unsigned long l1, l2;
         unsigned long flags;
 
         if ((reason > KMSG_DUMP_OOPS) && !always_kmsg_dump)
                 return;
 
-        /* Theoretically, the log could move on after we do this, but
-           there's not a lot we can do about that. The new messages
-           will overwrite the start of what we dump. */
+        rcu_read_lock();
+        list_for_each_entry_rcu(dumper, &dump_list, list) {
+                if (dumper->max_reason && reason > dumper->max_reason)
+                        continue;
+
+                /* initialize iterator with data about the stored records */
+                dumper->active = true;
+
+                raw_spin_lock_irqsave(&logbuf_lock, flags);
+                dumper->cur_seq = clear_seq;
+                dumper->cur_idx = clear_idx;
+                dumper->next_seq = log_next_seq;
+                dumper->next_idx = log_next_idx;
+                raw_spin_unlock_irqrestore(&logbuf_lock, flags);
+
+                /* invoke dumper which will iterate over records */
+                dumper->dump(dumper, reason);
+
+                /* reset iterator */
+                dumper->active = false;
+        }
+        rcu_read_unlock();
+}
+
+/**
+ * kmsg_dump_get_line - retrieve one kmsg log line
+ * @dumper: registered kmsg dumper
+ * @syslog: include the "<4>" prefixes
+ * @line: buffer to copy the line to
+ * @size: maximum size of the buffer
+ * @len: length of line placed into buffer
+ *
+ * Start at the beginning of the kmsg buffer, with the oldest kmsg
+ * record, and copy one record into the provided buffer.
+ *
+ * Consecutive calls will return the next available record moving
+ * towards the end of the buffer with the youngest messages.
+ *
+ * A return value of FALSE indicates that there are no more records to
+ * read.
+ */
+bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog,
+                        char *line, size_t size, size_t *len)
+{
+        unsigned long flags;
+        struct log *msg;
+        size_t l = 0;
+        bool ret = false;
+
+        if (!dumper->active)
+                goto out;
 
         raw_spin_lock_irqsave(&logbuf_lock, flags);
-        if (syslog_seq < log_first_seq)
-                idx = syslog_idx;
-        else
-                idx = log_first_idx;
+        if (dumper->cur_seq < log_first_seq) {
+                /* messages are gone, move to first available one */
+                dumper->cur_seq = log_first_seq;
+                dumper->cur_idx = log_first_idx;
+        }
+
+        /* last entry */
+        if (dumper->cur_seq >= log_next_seq) {
+                raw_spin_unlock_irqrestore(&logbuf_lock, flags);
+                goto out;
+        }
 
-        if (idx > log_next_idx) {
-                s1 = log_buf;
-                l1 = log_next_idx;
+        msg = log_from_idx(dumper->cur_idx);
+        l = msg_print_text(msg, syslog,
+                              line, size);
 
-                s2 = log_buf + idx;
-                l2 = log_buf_len - idx;
-        } else {
-                s1 = "";
-                l1 = 0;
+        dumper->cur_idx = log_next(dumper->cur_idx);
+        dumper->cur_seq++;
+        ret = true;
+        raw_spin_unlock_irqrestore(&logbuf_lock, flags);
+out:
+        if (len)
+                *len = l;
+        return ret;
+}
+EXPORT_SYMBOL_GPL(kmsg_dump_get_line);
+
+/**
+ * kmsg_dump_get_buffer - copy kmsg log lines
+ * @dumper: registered kmsg dumper
+ * @syslog: include the "<4>" prefixes
+ * @line: buffer to copy the line to
+ * @size: maximum size of the buffer
+ * @len: length of line placed into buffer
+ *
+ * Start at the end of the kmsg buffer and fill the provided buffer
+ * with as many of the the *youngest* kmsg records that fit into it.
+ * If the buffer is large enough, all available kmsg records will be
+ * copied with a single call.
+ *
+ * Consecutive calls will fill the buffer with the next block of
+ * available older records, not including the earlier retrieved ones.
+ *
+ * A return value of FALSE indicates that there are no more records to
+ * read.
+ */
+bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog,
+                          char *buf, size_t size, size_t *len)
+{
+        unsigned long flags;
+        u64 seq;
+        u32 idx;
+        u64 next_seq;
+        u32 next_idx;
+        size_t l = 0;
+        bool ret = false;
+
+        if (!dumper->active)
+                goto out;
+
+        raw_spin_lock_irqsave(&logbuf_lock, flags);
+        if (dumper->cur_seq < log_first_seq) {
+                /* messages are gone, move to first available one */
+                dumper->cur_seq = log_first_seq;
+                dumper->cur_idx = log_first_idx;
+        }
+
+        /* last entry */
+        if (dumper->cur_seq >= dumper->next_seq) {
+                raw_spin_unlock_irqrestore(&logbuf_lock, flags);
+                goto out;
+        }
+
+        /* calculate length of entire buffer */
+        seq = dumper->cur_seq;
+        idx = dumper->cur_idx;
+        while (seq < dumper->next_seq) {
+                struct log *msg = log_from_idx(idx);
+
+                l += msg_print_text(msg, true, NULL, 0);
+                idx = log_next(idx);
+                seq++;
+        }
 
-                s2 = log_buf + idx;
-                l2 = log_next_idx - idx;
+        /* move first record forward until length fits into the buffer */
+        seq = dumper->cur_seq;
+        idx = dumper->cur_idx;
+        while (l > size && seq < dumper->next_seq) {
+                struct log *msg = log_from_idx(idx);
+
+                l -= msg_print_text(msg, true, NULL, 0);
+                idx = log_next(idx);
+                seq++;
+        }
+
+        /* last message in next interation */
+        next_seq = seq;
+        next_idx = idx;
+
+        l = 0;
+        while (seq < dumper->next_seq) {
+                struct log *msg = log_from_idx(idx);
+
+                l += msg_print_text(msg, syslog,
+                                    buf + l, size - l);
+
+                idx = log_next(idx);
+                seq++;
         }
+
+        dumper->next_seq = next_seq;
+        dumper->next_idx = next_idx;
+        ret = true;
         raw_spin_unlock_irqrestore(&logbuf_lock, flags);
+out:
+        if (len)
+                *len = l;
+        return ret;
+}
+EXPORT_SYMBOL_GPL(kmsg_dump_get_buffer);
 
-        rcu_read_lock();
-        list_for_each_entry_rcu(dumper, &dump_list, list)
-                dumper->dump(dumper, reason, s1, l1, s2, l2);
-        rcu_read_unlock();
+/**
+ * kmsg_dump_rewind - reset the interator
+ * @dumper: registered kmsg dumper
+ *
+ * Reset the dumper's iterator so that kmsg_dump_get_line() and
+ * kmsg_dump_get_buffer() can be called again and used multiple
+ * times within the same dumper.dump() callback.
+ */
+void kmsg_dump_rewind(struct kmsg_dumper *dumper)
+{
+        unsigned long flags;
+
+        raw_spin_lock_irqsave(&logbuf_lock, flags);
+        dumper->cur_seq = clear_seq;
+        dumper->cur_idx = clear_idx;
+        dumper->next_seq = log_next_seq;
+        dumper->next_idx = log_next_idx;
+        raw_spin_unlock_irqrestore(&logbuf_lock, flags);
 }
+EXPORT_SYMBOL_GPL(kmsg_dump_rewind);
 #endif
diff --git a/kernel/sys.c b/kernel/sys.c
index f0ec44dcd415..e0c8ffc50d7f 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -2127,9 +2127,6 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
                                 else
                                         return -EINVAL;
                                 break;
-                case PR_GET_TID_ADDRESS:
-                        error = prctl_get_tid_address(me, (int __user **)arg2);
-                        break;
                         default:
                                 return -EINVAL;
                         }
@@ -2147,6 +2144,9 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
                 case PR_SET_MM:
                         error = prctl_set_mm(arg2, arg3, arg4, arg5);
                         break;
+                case PR_GET_TID_ADDRESS:
+                        error = prctl_get_tid_address(me, (int __user **)arg2);
+                        break;
                 case PR_SET_CHILD_SUBREAPER:
                         me->signal->is_child_subreaper = !!arg2;
                         error = 0;
diff --git a/lib/fault-inject.c b/lib/fault-inject.c
index 6805453c18e7..f7210ad6cffd 100644
--- a/lib/fault-inject.c
+++ b/lib/fault-inject.c
@@ -101,6 +101,10 @@ static inline bool fail_stacktrace(struct fault_attr *attr)
 
 bool should_fail(struct fault_attr *attr, ssize_t size)
 {
+        /* No need to check any other properties if the probability is 0 */
+        if (attr->probability == 0)
+                return false;
+
         if (attr->task_filter && !fail_task(attr, current))
                 return false;
 
diff --git a/mm/memblock.c b/mm/memblock.c
index 32a0a5e4d79d..d4382095f8bd 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -184,7 +184,24 @@ static void __init_memblock memblock_remove_region(struct memblock_type *type, u
         }
 }
 
-static int __init_memblock memblock_double_array(struct memblock_type *type)
+/**
+ * memblock_double_array - double the size of the memblock regions array
+ * @type: memblock type of the regions array being doubled
+ * @new_area_start: starting address of memory range to avoid overlap with
+ * @new_area_size: size of memory range to avoid overlap with
+ *
+ * Double the size of the @type regions array. If memblock is being used to
+ * allocate memory for a new reserved regions array and there is a previously
+ * allocated memory range [@new_area_start,@new_area_start+@new_area_size]
+ * waiting to be reserved, ensure the memory used by the new array does
+ * not overlap.
+ *
+ * RETURNS:
+ * 0 on success, -1 on failure.
+ */
+static int __init_memblock memblock_double_array(struct memblock_type *type,
+                                                phys_addr_t new_area_start,
+                                                phys_addr_t new_area_size)
 {
         struct memblock_region *new_array, *old_array;
         phys_addr_t old_size, new_size, addr;
@@ -222,7 +239,18 @@ static int __init_memblock memblock_double_array(struct memblock_type *type)
                 new_array = kmalloc(new_size, GFP_KERNEL);
                 addr = new_array ? __pa(new_array) : 0;
         } else {
-                addr = memblock_find_in_range(0, MEMBLOCK_ALLOC_ACCESSIBLE, new_size, sizeof(phys_addr_t));
+                /* only exclude range when trying to double reserved.regions */
+                if (type != &memblock.reserved)
+                        new_area_start = new_area_size = 0;
+
+                addr = memblock_find_in_range(new_area_start + new_area_size,
+                                                memblock.current_limit,
+                                                new_size, sizeof(phys_addr_t));
+                if (!addr && new_area_size)
+                        addr = memblock_find_in_range(0,
+                                        min(new_area_start, memblock.current_limit),
+                                        new_size, sizeof(phys_addr_t));
+
                 new_array = addr ? __va(addr) : 0;
         }
         if (!addr) {
@@ -399,7 +427,7 @@ repeat:
          */
         if (!insert) {
                 while (type->cnt + nr_new > type->max)
-                        if (memblock_double_array(type) < 0)
+                        if (memblock_double_array(type, obase, size) < 0)
                                 return -ENOMEM;
                 insert = true;
                 goto repeat;
@@ -450,7 +478,7 @@ static int __init_memblock memblock_isolate_range(struct memblock_type *type,
 
         /* we'll create at most two more regions */
         while (type->cnt + 2 > type->max)
-                if (memblock_double_array(type) < 0)
+                if (memblock_double_array(type, base, size) < 0)
                         return -ENOMEM;
 
         for (i = 0; i < type->cnt; i++) {
@@ -540,9 +568,9 @@ int __init_memblock memblock_reserve(phys_addr_t base, phys_addr_t size)
  * __next_free_mem_range - next function for for_each_free_mem_range()
  * @idx: pointer to u64 loop variable
  * @nid: nid: node selector, %MAX_NUMNODES for all nodes
- * @p_start: ptr to phys_addr_t for start address of the range, can be %NULL
- * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL
- * @p_nid: ptr to int for nid of the range, can be %NULL
+ * @out_start: ptr to phys_addr_t for start address of the range, can be %NULL
+ * @out_end: ptr to phys_addr_t for end address of the range, can be %NULL
+ * @out_nid: ptr to int for nid of the range, can be %NULL
  *
  * Find the first free area from *@idx which matches @nid, fill the out
  * parameters, and update *@idx for the next iteration.  The lower 32bit of
@@ -616,9 +644,9 @@ void __init_memblock __next_free_mem_range(u64 *idx, int nid,
  * __next_free_mem_range_rev - next function for for_each_free_mem_range_reverse()
  * @idx: pointer to u64 loop variable
  * @nid: nid: node selector, %MAX_NUMNODES for all nodes
- * @p_start: ptr to phys_addr_t for start address of the range, can be %NULL
- * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL
- * @p_nid: ptr to int for nid of the range, can be %NULL
+ * @out_start: ptr to phys_addr_t for start address of the range, can be %NULL
+ * @out_end: ptr to phys_addr_t for end address of the range, can be %NULL
+ * @out_nid: ptr to int for nid of the range, can be %NULL
  *
  * Reverse of __next_free_mem_range().
  */
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index ac35bccadb7b..f72b5e52451a 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1148,7 +1148,7 @@ bool __mem_cgroup_same_or_subtree(const struct mem_cgroup *root_memcg,
 {
         if (root_memcg == memcg)
                 return true;
-        if (!root_memcg->use_hierarchy)
+        if (!root_memcg->use_hierarchy || !memcg)
                 return false;
         return css_is_ancestor(&memcg->css, &root_memcg->css);
 }
@@ -1234,7 +1234,7 @@ int mem_cgroup_inactive_file_is_low(struct lruvec *lruvec)
 
 /**
  * mem_cgroup_margin - calculate chargeable space of a memory cgroup
- * @mem: the memory cgroup
+ * @memcg: the memory cgroup
  *
  * Returns the maximum amount of memory @mem can be charged with, in
  * pages.
@@ -1508,7 +1508,7 @@ static unsigned long mem_cgroup_reclaim(struct mem_cgroup *memcg,
 
 /**
  * test_mem_cgroup_node_reclaimable
- * @mem: the target memcg
+ * @memcg: the target memcg
  * @nid: the node ID to be checked.
  * @noswap : specify true here if the user wants flle only information.
  *
diff --git a/mm/memory.c b/mm/memory.c
index 1b7dc662bf9f..2466d1250231 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1225,7 +1225,15 @@ static inline unsigned long zap_pmd_range(struct mmu_gather *tlb,
                 next = pmd_addr_end(addr, end);
                 if (pmd_trans_huge(*pmd)) {
                         if (next - addr != HPAGE_PMD_SIZE) {
-                                VM_BUG_ON(!rwsem_is_locked(&tlb->mm->mmap_sem));
+#ifdef CONFIG_DEBUG_VM
+                                if (!rwsem_is_locked(&tlb->mm->mmap_sem)) {
+                                        pr_err("%s: mmap_sem is unlocked! addr=0x%lx end=0x%lx vma->vm_start=0x%lx vma->vm_end=0x%lx\n",
+                                                __func__, addr, end,
+                                                vma->vm_start,
+                                                vma->vm_end);
+                                        BUG();
+                                }
+#endif
                                 split_huge_page_pmd(vma->vm_mm, pmd);
                         } else if (zap_huge_pmd(tlb, vma, pmd, addr))
                                 goto next;
@@ -1366,7 +1374,7 @@ void unmap_vmas(struct mmu_gather *tlb,
 /**
  * zap_page_range - remove user pages in a given range
  * @vma: vm_area_struct holding the applicable pages
- * @address: starting address of pages to zap
+ * @start: starting address of pages to zap
  * @size: number of bytes to zap
  * @details: details of nonlinear truncation or shared cache invalidation
  *
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index f15c1b24ca18..1d771e4200d2 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1177,7 +1177,7 @@ static long do_mbind(unsigned long start, unsigned long len,
                 if (!list_empty(&pagelist)) {
                         nr_failed = migrate_pages(&pagelist, new_vma_page,
                                                 (unsigned long)vma,
-                                                false, true);
+                                                false, MIGRATE_SYNC);
                         if (nr_failed)
                                 putback_lru_pages(&pagelist);
                 }
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 416637f0e924..ac300c99baf6 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -184,6 +184,7 @@ unsigned long oom_badness(struct task_struct *p, struct mem_cgroup *memcg,
                           const nodemask_t *nodemask, unsigned long totalpages)
 {
         long points;
+        long adj;
 
         if (oom_unkillable_task(p, memcg, nodemask))
                 return 0;
@@ -192,7 +193,8 @@ unsigned long oom_badness(struct task_struct *p, struct mem_cgroup *memcg,
         if (!p)
                 return 0;
 
-        if (p->signal->oom_score_adj == OOM_SCORE_ADJ_MIN) {
+        adj = p->signal->oom_score_adj;
+        if (adj == OOM_SCORE_ADJ_MIN) {
                 task_unlock(p);
                 return 0;
         }
@@ -210,14 +212,11 @@ unsigned long oom_badness(struct task_struct *p, struct mem_cgroup *memcg,
          * implementation used by LSMs.
          */
         if (has_capability_noaudit(p, CAP_SYS_ADMIN))
-                points -= 30 * totalpages / 1000;
+                adj -= 30;
 
-        /*
-         * /proc/pid/oom_score_adj ranges from -1000 to +1000 such that it may
-         * either completely disable oom killing or always prefer a certain
-         * task.
-         */
-        points += p->signal->oom_score_adj * totalpages / 1000;
+        /* Normalize to oom_score_adj units */
+        adj *= totalpages / 1000;
+        points += adj;
 
         /*
          * Never return 0 for an eligible task regardless of the root bonus and
@@ -366,7 +365,7 @@ static struct task_struct *select_bad_process(unsigned int *ppoints,
 
 /**
  * dump_tasks - dump current memory state of all system tasks
- * @mem: current's memory controller, if constrained
+ * @memcg: current's memory controller, if constrained
  * @nodemask: nodemask passed to page allocator for mempolicy ooms
  *
  * Dumps the current memory state of all eligible tasks.  Tasks not in the same
diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c
index 1ccbd714059c..eb750f851395 100644
--- a/mm/page_cgroup.c
+++ b/mm/page_cgroup.c
@@ -392,7 +392,7 @@ static struct swap_cgroup *lookup_swap_cgroup(swp_entry_t ent,
 
 /**
  * swap_cgroup_cmpxchg - cmpxchg mem_cgroup's id for this swp_entry.
- * @end: swap entry to be cmpxchged
+ * @ent: swap entry to be cmpxchged
  * @old: old id
  * @new: new id
  *
@@ -422,7 +422,7 @@ unsigned short swap_cgroup_cmpxchg(swp_entry_t ent,
 /**
  * swap_cgroup_record - record mem_cgroup for this swp_entry.
  * @ent: swap entry to be recorded into
- * @mem: mem_cgroup to be recorded
+ * @id: mem_cgroup to be recorded
  *
  * Returns old value at success, 0 at failure.
  * (Of course, old value can be 0.)
diff --git a/mm/pagewalk.c b/mm/pagewalk.c
index aa9701e12714..6c118d012bb5 100644
--- a/mm/pagewalk.c
+++ b/mm/pagewalk.c
@@ -162,7 +162,6 @@ static int walk_hugetlb_range(struct vm_area_struct *vma,
 
 /**
  * walk_page_range - walk a memory map's page tables with a callback
- * @mm: memory map to walk
  * @addr: starting address
  * @end: ending address
  * @walk: set of callbacks to invoke for each level of the tree
diff --git a/mm/percpu-vm.c b/mm/percpu-vm.c
index 405d331804c3..3707c71ae4cd 100644
--- a/mm/percpu-vm.c
+++ b/mm/percpu-vm.c
@@ -360,7 +360,6 @@ err_free:
  * @chunk: chunk to depopulate
  * @off: offset to the area to depopulate
  * @size: size of the area to depopulate in bytes
- * @flush: whether to flush cache and tlb or not
  *
  * For each cpu, depopulate and unmap pages [@page_start,@page_end)
  * from @chunk.  If @flush is true, vcache is flushed before unmapping
diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
index 0948c6b5a321..8b673dd4627f 100755
--- a/scripts/get_maintainer.pl
+++ b/scripts/get_maintainer.pl
@@ -83,6 +83,8 @@ push(@signature_tags, "Signed-off-by:");
 push(@signature_tags, "Reviewed-by:");
 push(@signature_tags, "Acked-by:");
 
+my $signature_pattern = "\(" . join("|", @signature_tags) . "\)";
+
 # rfc822 email address - preloaded methods go here.
 my $rfc822_lwsp = "(?:(?:\\r\\n)?[ \\t])";
 my $rfc822_char = '[\\000-\\377]';
@@ -473,7 +475,6 @@ my @subsystem = ();
 my @status = ();
 my %deduplicate_name_hash = ();
 my %deduplicate_address_hash = ();
-my $signature_pattern;
 
 my @maintainers = get_maintainers();
 
diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c
index 146fd6147e84..d9834b362943 100644
--- a/tools/hv/hv_kvp_daemon.c
+++ b/tools/hv/hv_kvp_daemon.c
@@ -701,14 +701,18 @@ int main(void)
         pfd.fd = fd;
 
         while (1) {
+                struct sockaddr *addr_p = (struct sockaddr *) &addr;
+                socklen_t addr_l = sizeof(addr);
                 pfd.events = POLLIN;
                 pfd.revents = 0;
                 poll(&pfd, 1, -1);
 
-                len = recv(fd, kvp_recv_buffer, sizeof(kvp_recv_buffer), 0);
+                len = recvfrom(fd, kvp_recv_buffer, sizeof(kvp_recv_buffer), 0,
+                                addr_p, &addr_l);
 
-                if (len < 0) {
-                        syslog(LOG_ERR, "recv failed; error:%d", len);
+                if (len < 0 || addr.nl_pid) {
+                        syslog(LOG_ERR, "recvfrom failed; pid:%u error:%d %s",
+                                        addr.nl_pid, errno, strerror(errno));
                         close(fd);
                         return -1;
                 }
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 262589991ea4..07b5c7703dd1 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1179,6 +1179,12 @@ int cmd_stat(int argc, const char **argv, const char *prefix __used)
                 fprintf(stderr, "cannot use both --output and --log-fd\n");
                 usage_with_options(stat_usage, options);
         }
+
+        if (output_fd < 0) {
+                fprintf(stderr, "argument to --log-fd must be a > 0\n");
+                usage_with_options(stat_usage, options);
+        }
+
         if (!output) {
                 struct timespec tm;
                 mode = append_file ? "a" : "w";
@@ -1190,7 +1196,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __used)
                 }
                 clock_gettime(CLOCK_REALTIME, &tm);
                 fprintf(output, "# started on %s\n", ctime(&tm.tv_sec));
-        } else if (output_fd != 2) {
+        } else if (output_fd > 0) {
                 mode = append_file ? "a" : "w";
                 output = fdopen(output_fd, mode);
                 if (!output) {
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 2dd5edf161b7..e909d43cf542 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1942,7 +1942,6 @@ int perf_file_header__read(struct perf_file_header *header,
                 else
                         return -1;
         } else if (ph->needs_swap) {
-                unsigned int i;
                 /*
                  * feature bitmap is declared as an array of unsigned longs --
                  * not good since its size can differ between the host that
@@ -1958,14 +1957,17 @@ int perf_file_header__read(struct perf_file_header *header,
                  * file), punt and fallback to the original behavior --
                  * clearing all feature bits and setting buildid.
                  */
-                for (i = 0; i < BITS_TO_LONGS(HEADER_FEAT_BITS); ++i)
-                        header->adds_features[i] = bswap_64(header->adds_features[i]);
+                mem_bswap_64(&header->adds_features,
+                            BITS_TO_U64(HEADER_FEAT_BITS));
 
                 if (!test_bit(HEADER_HOSTNAME, header->adds_features)) {
-                        for (i = 0; i < BITS_TO_LONGS(HEADER_FEAT_BITS); ++i) {
-                                header->adds_features[i] = bswap_64(header->adds_features[i]);
-                                header->adds_features[i] = bswap_32(header->adds_features[i]);
-                        }
+                        /* unswap as u64 */
+                        mem_bswap_64(&header->adds_features,
+                                    BITS_TO_U64(HEADER_FEAT_BITS));
+
+                        /* unswap as u32 */
+                        mem_bswap_32(&header->adds_features,
+                                    BITS_TO_U32(HEADER_FEAT_BITS));
                 }
 
                 if (!test_bit(HEADER_HOSTNAME, header->adds_features)) {
@@ -2091,6 +2093,35 @@ static int read_attr(int fd, struct perf_header *ph,
         return ret <= 0 ? -1 : 0;
 }
 
+static int perf_evsel__set_tracepoint_name(struct perf_evsel *evsel)
+{
+        struct event_format *event = trace_find_event(evsel->attr.config);
+        char bf[128];
+
+        if (event == NULL)
+                return -1;
+
+        snprintf(bf, sizeof(bf), "%s:%s", event->system, event->name);
+        evsel->name = strdup(bf);
+        if (event->name == NULL)
+                return -1;
+
+        return 0;
+}
+
+static int perf_evlist__set_tracepoint_names(struct perf_evlist *evlist)
+{
+        struct perf_evsel *pos;
+
+        list_for_each_entry(pos, &evlist->entries, node) {
+                if (pos->attr.type == PERF_TYPE_TRACEPOINT &&
+                    perf_evsel__set_tracepoint_name(pos))
+                        return -1;
+        }
+
+        return 0;
+}
+
 int perf_session__read_header(struct perf_session *session, int fd)
 {
         struct perf_header *header = &session->header;
@@ -2172,6 +2203,9 @@ int perf_session__read_header(struct perf_session *session, int fd)
 
         lseek(fd, header->data_offset, SEEK_SET);
 
+        if (perf_evlist__set_tracepoint_names(session->evlist))
+                goto out_delete_evlist;
+
         header->frozen = 1;
         return 0;
 out_errno:
diff --git a/tools/perf/util/include/linux/bitops.h b/tools/perf/util/include/linux/bitops.h
index f1584833bd22..587a230d2075 100644
--- a/tools/perf/util/include/linux/bitops.h
+++ b/tools/perf/util/include/linux/bitops.h
@@ -8,6 +8,8 @@
 #define BITS_PER_LONG __WORDSIZE
 #define BITS_PER_BYTE           8
 #define BITS_TO_LONGS(nr)       DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
+#define BITS_TO_U64(nr)         DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u64))
+#define BITS_TO_U32(nr)         DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u32))
 
 #define for_each_set_bit(bit, addr, size) \
         for ((bit) = find_first_bit((addr), (size));            \
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 2600916efa83..c3e399bcf18d 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -442,6 +442,16 @@ static void perf_tool__fill_defaults(struct perf_tool *tool)
                         tool->finished_round = process_finished_round_stub;
         }
 }
+ 
+void mem_bswap_32(void *src, int byte_size)
+{
+        u32 *m = src;
+        while (byte_size > 0) {
+                *m = bswap_32(*m);
+                byte_size -= sizeof(u32);
+                ++m;
+        }
+}
 
 void mem_bswap_64(void *src, int byte_size)
 {
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 7a5434c00565..0c702e3f0a36 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -80,6 +80,7 @@ struct branch_info *machine__resolve_bstack(struct machine *self,
 bool perf_session__has_traces(struct perf_session *self, const char *msg);
 
 void mem_bswap_64(void *src, int byte_size);
+void mem_bswap_32(void *src, int byte_size);
 void perf_event__attr_swap(struct perf_event_attr *attr);
 
 int perf_session__create_kernel_maps(struct perf_session *self);