Merge branch 'akpm' (patches from Andrew)

Merge yet more updates from Andrew Morton:

 - a few MM remainders

 - misc things

 - autofs updates

 - signals

 - affs updates

 - ipc

 - nilfs2

 - spelling.txt updates

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (78 commits)
  mm, x86: fix HIGHMEM64 && PARAVIRT build config for native_pud_clear()
  mm: add arch-independent testcases for RODATA
  hfs: atomically read inode size
  mm: clarify mm_struct.mm_{users,count} documentation
  mm: use mmget_not_zero() helper
  mm: add new mmget() helper
  mm: add new mmgrab() helper
  checkpatch: warn when formats use %Z and suggest %z
  lib/vsprintf.c: remove %Z support
  scripts/spelling.txt: add some typo-words
  scripts/spelling.txt: add "followings" pattern and fix typo instances
  scripts/spelling.txt: add "therfore" pattern and fix typo instances
  scripts/spelling.txt: add "overwriten" pattern and fix typo instances
  scripts/spelling.txt: add "overwritting" pattern and fix typo instances
  scripts/spelling.txt: add "deintialize(d)" pattern and fix typo instances
  scripts/spelling.txt: add "disassocation" pattern and fix typo instances
  scripts/spelling.txt: add "omited" pattern and fix typo instances
  scripts/spelling.txt: add "explictely" pattern and fix typo instances
  scripts/spelling.txt: add "applys" pattern and fix typo instances
  scripts/spelling.txt: add "configuartion" pattern and fix typo instances
  ...

Documentation/DocBook/libata.tmpl

@@ -1020,7 +1020,7 @@ and other resources, etc.
 	</itemizedlist>
 
 	<para>
-	Of errors detected as above, the followings are not ATA/ATAPI
+	Of errors detected as above, the following are not ATA/ATAPI
 	device errors but ATA bus errors and should be handled
 	according to <xref linkend="excatATAbusErr"/>.
 	</para>

Documentation/acpi/method-customizing.txt

@@ -57,7 +57,7 @@ Note: To get the ACPI debug object output (Store (AAAA, Debug)),
 3. undo your changes
    The "undo" operation is not supported for a new inserted method
    right now, i.e. we can not remove a method currently.
-   For an overrided method, in order to undo your changes, please
+   For an overridden method, in order to undo your changes, please
    save a copy of the method original ASL code in step c) section 1,
    and redo step c) ~ g) to override the method with the original one.
 

Documentation/acpi/method-tracing.txt

@@ -152,7 +152,7 @@ tracing facility.
 	Users can enable/disable this debug tracing feature by executing
 	the following command:
 	    # echo string > /sys/module/acpi/parameters/trace_state
-	Where "string" should be one of the followings:
+	Where "string" should be one of the following:
 	"disable"
 	    Disable the method tracing feature.
 	"enable"

Documentation/admin-guide/ras.rst

@@ -81,7 +81,7 @@ That defines some categories of errors:
   still run, eventually replacing the affected hardware by a hot spare,
   if available.
 
-  Also, when an error happens on an userspace process, it is also possible to
+  Also, when an error happens on a userspace process, it is also possible to
   kill such process and let userspace restart it.
 
 The mechanism for handling non-fatal errors is usually complex and may

Documentation/blockdev/mflash.txt

@@ -17,7 +17,7 @@ driver and currently works well under standard IDE subsystem. Actually it's
 one chip SSD. IO mode is ATA-like custom mode for the host that doesn't have
 IDE interface.
 
-Followings are brief descriptions about IO mode.
+Following are brief descriptions about IO mode.
 A. IO mode based on ATA protocol and uses some custom command. (read confirm,
 write confirm)
 B. IO mode uses SRAM bus interface.

Documentation/device-mapper/dm-raid.txt

@@ -319,7 +319,7 @@ Version History
 1.5.2   'mismatch_cnt' is zero unless [last_]sync_action is "check".
 1.6.0   Add discard support (and devices_handle_discard_safely module param).
 1.7.0   Add support for MD RAID0 mappings.
-1.8.0   Explictely check for compatible flags in the superblock metadata
+1.8.0   Explicitly check for compatible flags in the superblock metadata
 	and reject to start the raid set if any are set by a newer
 	target version, thus avoiding data corruption on a raid set
 	with a reshape in progress.

Documentation/devicetree/bindings/mfd/qcom-rpm.txt

@@ -234,7 +234,7 @@ see regulator.txt - with additional custom properties described below:
 - qcom,switch-mode-frequency:
 	Usage: required
 	Value type: <u32>
-	Definition: Frequency (Hz) of the swith mode power supply;
+	Definition: Frequency (Hz) of the switch mode power supply;
 		    must be one of:
 		    19200000, 9600000, 6400000, 4800000, 3840000, 3200000,
 		    2740000, 2400000, 2130000, 1920000, 1750000, 1600000,

Documentation/devicetree/bindings/net/marvell-armada-370-neta.txt

@@ -1,7 +1,7 @@
 * Marvell Armada 370 / Armada XP / Armada 3700 Ethernet Controller (NETA)
 
 Required properties:
-- compatible: could be one of the followings
+- compatible: could be one of the following:
 	"marvell,armada-370-neta"
 	"marvell,armada-xp-neta"
 	"marvell,armada-3700-neta"

Documentation/devicetree/bindings/opp/opp.txt

@@ -136,7 +136,7 @@ Optional properties:
   larger OPP table, based on what version of the hardware we are running on. We
   still can't have multiple nodes with the same opp-hz value in OPP table.
 
-  It's an user defined array containing a hierarchy of hardware version numbers,
+  It's a user defined array containing a hierarchy of hardware version numbers,
   supported by the OPP. For example: a platform with hierarchy of three levels
   of versions (A, B and C), this field should be like <X Y Z>, where X
   corresponds to Version hierarchy A, Y corresponds to version hierarchy B and Z

Documentation/devicetree/bindings/pinctrl/allwinner,sunxi-pinctrl.txt

@@ -6,7 +6,7 @@ the first two functions being GPIO in and out. The configuration on
 the pins includes drive strength and pull-up.
 
 Required properties:
-- compatible: Should be one of the followings (depending on you SoC):
+- compatible: Should be one of the following (depending on your SoC):
   "allwinner,sun4i-a10-pinctrl"
   "allwinner,sun5i-a10s-pinctrl"
   "allwinner,sun5i-a13-pinctrl"

Documentation/devicetree/bindings/power/pd-samsung.txt

@@ -23,7 +23,7 @@ Optional Properties:
 - clock-names: The following clocks can be specified:
 	- oscclk: Oscillator clock.
 	- clkN: Input clocks to the devices in this power domain. These clocks
-		will be reparented to oscclk before swithing power domain off.
+		will be reparented to oscclk before switching power domain off.
 		Their original parent will be brought back after turning on
 		the domain. Maximum of 4 clocks (N = 0 to 3) are supported.
 	- asbN: Clocks required by asynchronous bridges (ASB) present in

Documentation/devicetree/bindings/soc/rockchip/grf.txt

@@ -10,7 +10,7 @@ From RK3368 SoCs, the GRF is divided into two sections,
 
 Required Properties:
 
-- compatible: GRF should be one of the followings
+- compatible: GRF should be one of the following:
    - "rockchip,rk3036-grf", "syscon": for rk3036
    - "rockchip,rk3066-grf", "syscon": for rk3066
    - "rockchip,rk3188-grf", "syscon": for rk3188
@@ -18,7 +18,7 @@ Required Properties:
    - "rockchip,rk3288-grf", "syscon": for rk3288
    - "rockchip,rk3368-grf", "syscon": for rk3368
    - "rockchip,rk3399-grf", "syscon": for rk3399
-- compatible: PMUGRF should be one of the followings
+- compatible: PMUGRF should be one of the following:
    - "rockchip,rk3368-pmugrf", "syscon": for rk3368
    - "rockchip,rk3399-pmugrf", "syscon": for rk3399
 - compatible: SGRF should be one of the following

Documentation/devicetree/bindings/sound/rockchip-i2s.txt

@@ -5,7 +5,7 @@ audio data transfer between devices in the system.
 
 Required properties:
 
-- compatible: should be one of the followings
+- compatible: should be one of the following:
    - "rockchip,rk3066-i2s": for rk3066
    - "rockchip,rk3188-i2s", "rockchip,rk3066-i2s": for rk3188
    - "rockchip,rk3288-i2s", "rockchip,rk3066-i2s": for rk3288
@@ -17,7 +17,7 @@ Required properties:
 	Documentation/devicetree/bindings/dma/dma.txt
 - dma-names: should include "tx" and "rx".
 - clocks: a list of phandle + clock-specifer pairs, one for each entry in clock-names.
-- clock-names: should contain followings:
+- clock-names: should contain the following:
    - "i2s_hclk": clock for I2S BUS
    - "i2s_clk" : clock for I2S controller
 - rockchip,playback-channels: max playback channels, if not set, 8 channels default.

Documentation/devicetree/bindings/sound/sun4i-codec.txt

@@ -14,7 +14,7 @@ Required properties:
 - dma-names: should include "tx" and "rx".
 - clocks: a list of phandle + clock-specifer pairs, one for each entry
   in clock-names.
-- clock-names: should contain followings:
+- clock-names: should contain the following:
    - "apb": the parent APB clock for this controller
    - "codec": the parent module clock
 

Documentation/devicetree/bindings/sound/sun4i-i2s.txt

@@ -5,7 +5,7 @@ audio data transfer between devices in the system.
 
 Required properties:
 
-- compatible: should be one of the followings
+- compatible: should be one of the following:
    - "allwinner,sun4i-a10-i2s"
    - "allwinner,sun6i-a31-i2s"
 - reg: physical base address of the controller and length of memory mapped
@@ -15,7 +15,7 @@ Required properties:
 	Documentation/devicetree/bindings/dma/dma.txt
 - dma-names: should include "tx" and "rx".
 - clocks: a list of phandle + clock-specifer pairs, one for each entry in clock-names.
-- clock-names: should contain followings:
+- clock-names: should contain the following:
    - "apb" : clock for the I2S bus interface
    - "mod" : module clock for the I2S controller
 - #sound-dai-cells : Must be equal to 0

Documentation/filesystems/autofs4-mount-control.txt

@@ -179,6 +179,7 @@ struct autofs_dev_ioctl {
 				 * including this struct */
 	__s32 ioctlfd;          /* automount command fd */
 
+	/* Command parameters */
 	union {
 		struct args_protover		protover;
 		struct args_protosubver		protosubver;

Documentation/filesystems/autofs4.txt

@@ -425,8 +425,20 @@ Each ioctl is passed a pointer to an `autofs_dev_ioctl` structure:
                                          * including this struct */
                 __s32 ioctlfd;          /* automount command fd */
 
-                __u32 arg1;             /* Command parameters */
+		/* Command parameters */
-                __u32 arg2;
+		union {
+			struct args_protover		protover;
+			struct args_protosubver		protosubver;
+			struct args_openmount		openmount;
+			struct args_ready		ready;
+			struct args_fail		fail;
+			struct args_setpipefd		setpipefd;
+			struct args_timeout		timeout;
+			struct args_requester		requester;
+			struct args_expire		expire;
+			struct args_askumount		askumount;
+			struct args_ismountpoint	ismountpoint;
+		};
 
                 char path[0];
         };
@@ -446,25 +458,22 @@ Commands are:
     set version numbers.
 - **AUTOFS_DEV_IOCTL_OPENMOUNT_CMD**: return an open file descriptor
     on the root of an autofs filesystem.  The filesystem is identified
-    by name and device number, which is stored in `arg1`.  Device
+    by name and device number, which is stored in `openmount.devid`.
-    numbers for existing filesystems can be found in
+    Device numbers for existing filesystems can be found in
     `/proc/self/mountinfo`.
 - **AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD**: same as `close(ioctlfd)`.
 - **AUTOFS_DEV_IOCTL_SETPIPEFD_CMD**: if the filesystem is in
     catatonic mode, this can provide the write end of a new pipe
-    in `arg1` to re-establish communication with a daemon.  The
+    in `setpipefd.pipefd` to re-establish communication with a daemon.
-    process group of the calling process is used to identify the
+    The process group of the calling process is used to identify the
     daemon.
 - **AUTOFS_DEV_IOCTL_REQUESTER_CMD**: `path` should be a
     name within the filesystem that has been auto-mounted on.
-    arg1 is the dev number of the underlying autofs.  On successful
+    On successful return, `requester.uid` and `requester.gid` will be
-    return, `arg1` and `arg2` will be the UID and GID of the process
+    the UID and GID of the process which triggered that mount.
-    which triggered that mount.
-
 - **AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD**: Check if path is a
     mountpoint of a particular type - see separate documentation for
     details.
-
 - **AUTOFS_DEV_IOCTL_PROTOVER_CMD**:
 - **AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD**:
 - **AUTOFS_DEV_IOCTL_READY_CMD**:
@@ -474,7 +483,7 @@ Commands are:
 - **AUTOFS_DEV_IOCTL_EXPIRE_CMD**:
 - **AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD**:  These all have the same
     function as the similarly named **AUTOFS_IOC** ioctls, except
-    that **FAIL** can be given an explicit error number in `arg1`
+    that **FAIL** can be given an explicit error number in `fail.status`
     instead of assuming `ENOENT`, and this **EXPIRE** command
     corresponds to **AUTOFS_IOC_EXPIRE_MULTI**.
 
@@ -512,7 +521,7 @@ always be mounted "shared". e.g.
 
 > `mount --make-shared /autofs/mount/point`
 
-The automount daemon is only able to mange a single mount location for
+The automount daemon is only able to manage a single mount location for
 an autofs filesystem and if mounts on that are not 'shared', other
 locations will not behave as expected.  In particular access to those
 other locations will likely result in the `ELOOP` error

Documentation/filesystems/quota.txt

@@ -6,7 +6,7 @@ Quota subsystem allows system administrator to set limits on used space and
 number of used inodes (inode is a filesystem structure which is associated with
 each file or directory) for users and/or groups. For both used space and number
 of used inodes there are actually two limits. The first one is called softlimit
-and the second one hardlimit.  An user can never exceed a hardlimit for any
+and the second one hardlimit.  A user can never exceed a hardlimit for any
 resource (unless he has CAP_SYS_RESOURCE capability). User is allowed to exceed
 softlimit but only for limited period of time. This period is called "grace
 period" or "grace time". When grace time is over, user is not able to allocate

Documentation/kselftest.txt

@@ -59,14 +59,14 @@ Install selftests
 =================
 
 You can use kselftest_install.sh tool installs selftests in default
-location which is tools/testing/selftests/kselftest or an user specified
+location which is tools/testing/selftests/kselftest or a user specified
 location.
 
 To install selftests in default location:
    $ cd tools/testing/selftests
    $ ./kselftest_install.sh
 
-To install selftests in an user specified location:
+To install selftests in a user specified location:
    $ cd tools/testing/selftests
    $ ./kselftest_install.sh install_dir
 

Documentation/media/dvb-drivers/ci.rst

@@ -20,7 +20,7 @@ existing low level CI API.
 ca_zap
 ~~~~~~
 
-An userspace application, like ``ca_zap`` is required to handle encrypted
+A userspace application, like ``ca_zap`` is required to handle encrypted
 MPEG-TS streams.
 
 The ``ca_zap`` userland application is in charge of sending the

Documentation/media/uapi/dvb/dvb-frontend-parameters.rst

@@ -9,7 +9,7 @@ frontend parameters
 The kind of parameters passed to the frontend device for tuning depend
 on the kind of hardware you are using.
 
-The struct ``dvb_frontend_parameters`` uses an union with specific
+The struct ``dvb_frontend_parameters`` uses a union with specific
 per-system parameters. However, as newer delivery systems required more
 data, the structure size weren't enough to fit, and just extending its
 size would break the existing applications. So, those parameters were
@@ -23,7 +23,7 @@ So, newer applications should use
 instead, in order to be able to support the newer System Delivery like
 DVB-S2, DVB-T2, DVB-C2, ISDB, etc.
 
-All kinds of parameters are combined as an union in the
+All kinds of parameters are combined as a union in the
 FrontendParameters structure:
 
 

Documentation/memory-hotplug.txt

@@ -114,11 +114,11 @@ config options.
     Memory model -> Sparse Memory  (CONFIG_SPARSEMEM)
     Allow for memory hot-add       (CONFIG_MEMORY_HOTPLUG)
 
-- To enable memory removal, the followings are also necessary
+- To enable memory removal, the following are also necessary
     Allow for memory hot remove    (CONFIG_MEMORY_HOTREMOVE)
     Page Migration                 (CONFIG_MIGRATION)
 
-- For ACPI memory hotplug, the followings are also necessary
+- For ACPI memory hotplug, the following are also necessary
     Memory hotplug (under ACPI Support menu) (CONFIG_ACPI_HOTPLUG_MEMORY)
     This option can be kernel module.
 

Documentation/networking/cdc_mbim.txt

@@ -38,7 +38,7 @@ Basic usage
 ===========
 
 MBIM functions are inactive when unmanaged. The cdc_mbim driver only
-provides an userspace interface to the MBIM control channel, and will
+provides a userspace interface to the MBIM control channel, and will
 not participate in the management of the function. This implies that a
 userspace MBIM management application always is required to enable a
 MBIM function.
@@ -200,7 +200,7 @@ structure described in section 10.5.29 of [1].
 The DSS VLAN subdevices are used as a practical interface between the
 shared MBIM data channel and a MBIM DSS aware userspace application.
 It is not intended to be presented as-is to an end user. The
-assumption is that an userspace application initiating a DSS session
+assumption is that a userspace application initiating a DSS session
 also takes care of the necessary framing of the DSS data, presenting
 the stream to the end user in an appropriate way for the stream type.
 

Documentation/scsi/ChangeLog.megaraid_sas

@@ -549,7 +549,7 @@ ii.	Reduced by 1 max cmds sent to FW from Driver to make the reply_q_sz same
 3 Older Version   : 00.00.03.02
 
 i.	Send stop adapter to FW & Dump pending FW cmds before declaring adapter dead.
-	New varible added to set dbg level.
+	New variable added to set dbg level.
 ii.	Disable interrupt made as fn pointer as they are different for 1068 / 1078
 iii.	Frame count optimization. Main frame can contain 2 SGE for 64 bit SGLs and
 	3 SGE for 32 bit SGL

Documentation/sound/hd-audio/notes.rst

@@ -697,7 +697,7 @@ If it's a regression, at best, send alsa-info outputs of both working
 and non-working kernels.  This is really helpful because we can
 compare the codec registers directly.
 
-Send a bug report either the followings:
+Send a bug report either the following:
 
 kernel-bugzilla
     https://bugzilla.kernel.org/

Documentation/vm/userfaultfd.txt

@@ -149,7 +149,7 @@ migration thread in the QEMU running in the destination node will
 receive the page that triggered the userfault and it'll map it as
 usual with the UFFDIO_COPY|ZEROPAGE (without actually knowing if it
 was spontaneously sent by the source or if it was an urgent page
-requested through an userfault).
+requested through a userfault).
 
 By the time the userfaults start, the QEMU in the destination node
 doesn't need to keep any per-page state bitmap relative to the live

MAINTAINERS

@@ -7286,6 +7286,7 @@ M:	Masami Hiramatsu <mhiramat@kernel.org>
 S:	Maintained
 F:	Documentation/kprobes.txt
 F:	include/linux/kprobes.h
+F:	include/asm-generic/kprobes.h
 F:	kernel/kprobes.c
 
 KS0108 LCD CONTROLLER DRIVER

arch/Kconfig

@@ -29,7 +29,7 @@ config OPROFILE_EVENT_MULTIPLEX
 	  The number of hardware counters is limited. The multiplexing
 	  feature enables OProfile to gather more events than counters
 	  are provided by the hardware. This is realized by switching
-	  between events at an user specified time interval.
+	  between events at a user specified time interval.
 
 	  If unsure, say N.
 

arch/alpha/include/asm/Kbuild

@@ -10,3 +10,4 @@ generic-y += preempt.h
 generic-y += sections.h
 generic-y += trace_clock.h
 generic-y += current.h
+generic-y += kprobes.h

arch/alpha/kernel/smp.c

@@ -144,7 +144,7 @@ smp_callin(void)
 		alpha_mv.smp_callin();
 
 	/* All kernel threads share the same mm context.  */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	/* inform the notifiers about the new cpu */

arch/arc/include/asm/kprobes.h

@@ -9,6 +9,8 @@
 #ifndef _ARC_KPROBES_H
 #define _ARC_KPROBES_H
 
+#include <asm-generic/kprobes.h>
+
 #ifdef CONFIG_KPROBES
 
 typedef u16 kprobe_opcode_t;
@@ -55,6 +57,6 @@ void trap_is_kprobe(unsigned long address, struct pt_regs *regs);
 static void trap_is_kprobe(unsigned long address, struct pt_regs *regs)
 {
 }
-#endif
+#endif /* CONFIG_KPROBES */
 
-#endif
+#endif /* _ARC_KPROBES_H */

arch/arc/kernel/smp.c

@@ -139,8 +139,8 @@ void start_kernel_secondary(void)
 	/* MMU, Caches, Vector Table, Interrupts etc */
 	setup_processor();
 
-	atomic_inc(&mm->mm_users);
+	mmget(mm);
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
 	current->active_mm = mm;
 	cpumask_set_cpu(cpu, mm_cpumask(mm));
 

arch/arc/kernel/unwind.c

@@ -1051,9 +1051,9 @@ int arc_unwind(struct unwind_frame_info *frame)
 		++ptr;
 	}
 	if (cie != NULL) {
-		/* get code aligment factor */
+		/* get code alignment factor */
 		state.codeAlign = get_uleb128(&ptr, end);
-		/* get data aligment factor */
+		/* get data alignment factor */
 		state.dataAlign = get_sleb128(&ptr, end);
 		if (state.codeAlign == 0 || state.dataAlign == 0 || ptr >= end)
 			cie = NULL;

arch/arm/boot/compressed/head.S

@@ -1196,7 +1196,7 @@ skip:
 		bgt	loop1
 finished:
 		ldmfd	sp!, {r0-r7, r9-r11}
-		mov	r10, #0			@ swith back to cache level 0
+		mov	r10, #0			@ switch back to cache level 0
 		mcr	p15, 2, r10, c0, c0, 0	@ select current cache level in cssr
 iflush:
 		mcr	p15, 0, r10, c7, c10, 4	@ DSB

arch/arm/include/asm/kprobes.h

@@ -16,6 +16,9 @@
 #ifndef _ARM_KPROBES_H
 #define _ARM_KPROBES_H
 
+#include <asm-generic/kprobes.h>
+
+#ifdef CONFIG_KPROBES
 #include <linux/types.h>
 #include <linux/ptrace.h>
 #include <linux/notifier.h>
@@ -83,4 +86,5 @@ struct arch_optimized_insn {
 	 */
 };
 
+#endif /* CONFIG_KPROBES */
 #endif /* _ARM_KPROBES_H */

arch/arm/include/asm/mach/flash.h

@@ -22,7 +22,7 @@ struct mtd_info;
  * set_vpp:	method called to enable or disable VPP
  * mmcontrol:	method called to enable or disable Sync. Burst Read in OneNAND
  * parts:	optional array of mtd_partitions for static partitioning
- * nr_parts:	number of mtd_partitions for static partitoning
+ * nr_parts:	number of mtd_partitions for static partitioning
  */
 struct flash_platform_data {
 	const char	*map_name;

arch/arm/kernel/smp.c

@@ -371,7 +371,7 @@ asmlinkage void secondary_start_kernel(void)
 	 * reference and switch to it.
 	 */
 	cpu = smp_processor_id();
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
 	current->active_mm = mm;
 	cpumask_set_cpu(cpu, mm_cpumask(mm));
 

arch/arm/mach-omap2/omap_twl.c

@@ -1,5 +1,5 @@
 /**
- * OMAP and TWL PMIC specific intializations.
+ * OMAP and TWL PMIC specific initializations.
  *
  * Copyright (C) 2010 Texas Instruments Incorporated.
  * Thara Gopinath

arch/arm/mm/cache-v7.S

@@ -164,7 +164,7 @@ skip:
 	cmp	r3, r10
 	bgt	flush_levels
 finished:
-	mov	r10, #0				@ swith back to cache level 0
+	mov	r10, #0				@ switch back to cache level 0
 	mcr	p15, 2, r10, c0, c0, 0		@ select current cache level in cssr
 	dsb	st
 	isb

arch/arm/mm/cache-v7m.S

@@ -217,7 +217,7 @@ skip:
 	cmp	r3, r10
 	bgt	flush_levels
 finished:
-	mov	r10, #0				@ swith back to cache level 0
+	mov	r10, #0				@ switch back to cache level 0
 	write_csselr r10, r3			@ select current cache level in cssr
 	dsb	st
 	isb

arch/arm/probes/decode.h

@@ -22,6 +22,7 @@
 #include <linux/types.h>
 #include <linux/stddef.h>
 #include <asm/probes.h>
+#include <asm/kprobes.h>
 
 void __init arm_probes_decode_init(void);
 

arch/arm64/include/asm/kprobes.h

@@ -16,6 +16,9 @@
 #ifndef _ARM_KPROBES_H
 #define _ARM_KPROBES_H
 
+#include <asm-generic/kprobes.h>
+
+#ifdef CONFIG_KPROBES
 #include <linux/types.h>
 #include <linux/ptrace.h>
 #include <linux/percpu.h>
@@ -57,4 +60,5 @@ int kprobe_single_step_handler(struct pt_regs *regs, unsigned int esr);
 void kretprobe_trampoline(void);
 void __kprobes *trampoline_probe_handler(struct pt_regs *regs);
 
+#endif /* CONFIG_KPROBES */
 #endif /* _ARM_KPROBES_H */

arch/arm64/kernel/armv8_deprecated.c

@@ -19,6 +19,7 @@
 #include <asm/sysreg.h>
 #include <asm/system_misc.h>
 #include <asm/traps.h>
+#include <asm/kprobes.h>
 #include <linux/uaccess.h>
 #include <asm/cpufeature.h>
 

arch/arm64/kernel/insn.c

@@ -31,6 +31,7 @@
 #include <asm/debug-monitors.h>
 #include <asm/fixmap.h>
 #include <asm/insn.h>
+#include <asm/kprobes.h>
 
 #define AARCH64_INSN_SF_BIT	BIT(31)
 #define AARCH64_INSN_N_BIT	BIT(22)

arch/arm64/kernel/probes/decode-insn.h

@@ -16,6 +16,8 @@
 #ifndef _ARM_KERNEL_KPROBES_ARM64_H
 #define _ARM_KERNEL_KPROBES_ARM64_H
 
+#include <asm/kprobes.h>
+
 /*
  * ARM strongly recommends a limit of 128 bytes between LoadExcl and
  * StoreExcl instructions in a single thread of execution. So keep the

arch/arm64/kernel/smp.c

@@ -222,7 +222,7 @@ asmlinkage void secondary_start_kernel(void)
 	 * All kernel threads share the same mm context; grab a
 	 * reference and switch to it.
 	 */
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
 	current->active_mm = mm;
 
 	/*

arch/arm64/lib/copy_template.S

@@ -62,7 +62,7 @@ D_h	.req	x14
 	sub	count, count, tmp2
 	/*
 	* Copy the leading memory data from src to dst in an increasing
-	* address order.By this way,the risk of overwritting the source
+	* address order.By this way,the risk of overwriting the source
 	* memory data is eliminated when the distance between src and
 	* dst is less than 16. The memory accesses here are alignment.
 	*/

arch/avr32/include/asm/kprobes.h

@@ -11,10 +11,14 @@
 #ifndef __ASM_AVR32_KPROBES_H
 #define __ASM_AVR32_KPROBES_H
 
+#include <asm-generic/kprobes.h>
+
+#define BREAKPOINT_INSTRUCTION	0xd673	/* breakpoint */
+
+#ifdef CONFIG_KPROBES
 #include <linux/types.h>
 
 typedef u16	kprobe_opcode_t;
-#define BREAKPOINT_INSTRUCTION	0xd673	/* breakpoint */
 #define MAX_INSN_SIZE		2
 #define MAX_STACK_SIZE		64	/* 32 would probably be OK */
 
@@ -46,4 +50,5 @@ extern int kprobe_exceptions_notify(struct notifier_block *self,
 
 #define flush_insn_slot(p)	do { } while (0)
 
+#endif /* CONFIG_KPROBES */
 #endif /* __ASM_AVR32_KPROBES_H */

arch/blackfin/include/asm/Kbuild

@@ -46,3 +46,4 @@ generic-y += unaligned.h
 generic-y += user.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += kprobes.h

arch/blackfin/mach-common/smp.c

@@ -307,8 +307,8 @@ void secondary_start_kernel(void)
 	local_irq_disable();
 
 	/* Attach the new idle task to the global mm. */
-	atomic_inc(&mm->mm_users);
+	mmget(mm);
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
 	current->active_mm = mm;
 
 	preempt_disable();

arch/c6x/include/asm/Kbuild

@@ -61,3 +61,4 @@ generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += kprobes.h

arch/cris/include/asm/Kbuild

@@ -45,3 +45,4 @@ generic-y += types.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += kprobes.h

arch/frv/include/asm/Kbuild

@@ -7,3 +7,4 @@ generic-y += mm-arch-hooks.h
 generic-y += preempt.h
 generic-y += trace_clock.h
 generic-y += word-at-a-time.h
+generic-y += kprobes.h

arch/frv/mm/mmu-context.c

@@ -188,7 +188,7 @@ int cxn_pin_by_pid(pid_t pid)
 		task_lock(tsk);
 		if (tsk->mm) {
 			mm = tsk->mm;
-			atomic_inc(&mm->mm_users);
+			mmget(mm);
 			ret = 0;
 		}
 		task_unlock(tsk);

arch/h8300/include/asm/Kbuild

@@ -74,3 +74,4 @@ generic-y += unaligned.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += kprobes.h

arch/hexagon/include/asm/Kbuild

@@ -59,3 +59,4 @@ generic-y += unaligned.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += kprobes.h

arch/hexagon/kernel/smp.c

@@ -162,7 +162,7 @@ void start_secondary(void)
 	);
 
 	/*  Set the memory struct  */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	cpu = smp_processor_id();

arch/ia64/include/asm/kprobes.h

@@ -23,14 +23,19 @@
  * 2005-Apr     Rusty Lynch <rusty.lynch@intel.com> and Anil S Keshavamurthy
  *              <anil.s.keshavamurthy@intel.com> adapted from i386
  */
+#include <asm-generic/kprobes.h>
+#include <asm/break.h>
+
+#define BREAK_INST	(long)(__IA64_BREAK_KPROBE << 6)
+
+#ifdef CONFIG_KPROBES
+
 #include <linux/types.h>
 #include <linux/ptrace.h>
 #include <linux/percpu.h>
-#include <asm/break.h>
 
 #define __ARCH_WANT_KPROBES_INSN_SLOT
 #define MAX_INSN_SIZE   2	/* last half is for kprobe-booster */
-#define BREAK_INST	(long)(__IA64_BREAK_KPROBE << 6)
 #define NOP_M_INST	(long)(1<<27)
 #define BRL_INST(i1, i2) ((long)((0xcL << 37) |	/* brl */ \
 				(0x1L << 12) |	/* many */ \
@@ -124,4 +129,5 @@ extern void invalidate_stacked_regs(void);
 extern void flush_register_stack(void);
 extern void arch_remove_kprobe(struct kprobe *p);
 
+#endif /* CONFIG_KPROBES */
 #endif /* _ASM_KPROBES_H */

arch/ia64/kernel/setup.c

@@ -994,7 +994,7 @@ cpu_init (void)
 	 */
 	ia64_setreg(_IA64_REG_CR_DCR,  (  IA64_DCR_DP | IA64_DCR_DK | IA64_DCR_DX | IA64_DCR_DR
 					| IA64_DCR_DA | IA64_DCR_DD | IA64_DCR_LC));
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 	BUG_ON(current->mm);
 

arch/ia64/sn/kernel/sn2/sn_hwperf.c

@@ -525,7 +525,7 @@ static int sn_topology_show(struct seq_file *s, void *d)
 				/* both ends local to this partition */
 				seq_puts(s, " local");
 			else if (SN_HWPERF_FOREIGN(p))
-				/* both ends of the link in foreign partiton */
+				/* both ends of the link in foreign partition */
 				seq_puts(s, " foreign");
 			else
 				/* link straddles a partition */

arch/m32r/include/asm/Kbuild

@@ -11,3 +11,4 @@ generic-y += preempt.h
 generic-y += sections.h
 generic-y += trace_clock.h
 generic-y += word-at-a-time.h
+generic-y += kprobes.h

arch/m32r/kernel/setup.c

@@ -403,7 +403,7 @@ void __init cpu_init (void)
 	printk(KERN_INFO "Initializing CPU#%d\n", cpu_id);
 
 	/* Set up and load the per-CPU TSS and LDT */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 	if (current->mm)
 		BUG();

arch/m68k/ifpsp060/src/isp.S

@@ -3814,7 +3814,7 @@ CAS2W2_FILLER:
 #	(3) Save current DFC/SFC (ASSUMED TO BE EQUAL!!!); Then set	#
 #	    SFC/DFC according to whether exception occurred in user or	#
 #	    supervisor mode.						#
-#	(4) Use "plpaw" instruction to pre-load ATC with efective	#
+#	(4) Use "plpaw" instruction to pre-load ATC with effective	#
 #	    address page(s). THIS SHOULD NOT FAULT!!! The relevant	#
 #	    page(s) should have been made resident prior to entering	#
 #	    this routine.						#

arch/m68k/include/asm/Kbuild

@@ -33,3 +33,4 @@ generic-y += trace_clock.h
 generic-y += types.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += kprobes.h

arch/metag/include/asm/Kbuild

@@ -54,3 +54,4 @@ generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += kprobes.h

arch/metag/kernel/smp.c

@@ -344,8 +344,8 @@ asmlinkage void secondary_start_kernel(void)
 	 * All kernel threads share the same mm context; grab a
 	 * reference and switch to it.
 	 */
-	atomic_inc(&mm->mm_users);
+	mmget(mm);
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
 	current->active_mm = mm;
 	cpumask_set_cpu(cpu, mm_cpumask(mm));
 	enter_lazy_tlb(mm, current);

arch/microblaze/include/asm/Kbuild

@@ -10,3 +10,4 @@ generic-y += preempt.h
 generic-y += syscalls.h
 generic-y += trace_clock.h
 generic-y += word-at-a-time.h
+generic-y += kprobes.h

arch/mips/include/asm/kprobes.h

@@ -22,6 +22,9 @@
 #ifndef _ASM_KPROBES_H
 #define _ASM_KPROBES_H
 
+#include <asm-generic/kprobes.h>
+
+#ifdef CONFIG_KPROBES
 #include <linux/ptrace.h>
 #include <linux/types.h>
 
@@ -94,4 +97,5 @@ struct kprobe_ctlblk {
 extern int kprobe_exceptions_notify(struct notifier_block *self,
 				    unsigned long val, void *data);
 
+#endif /* CONFIG_KPROBES */
 #endif /* _ASM_KPROBES_H */

arch/mips/kernel/traps.c

@@ -2232,7 +2232,7 @@ void per_cpu_trap_init(bool is_boot_cpu)
 	if (!cpu_data[cpu].asid_cache)
 		cpu_data[cpu].asid_cache = asid_first_version(cpu);
 
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 	BUG_ON(current->mm);
 	enter_lazy_tlb(&init_mm, current);

arch/mn10300/include/asm/kprobes.h

@@ -21,13 +21,17 @@
 #ifndef _ASM_KPROBES_H
 #define _ASM_KPROBES_H
 
+#include <asm-generic/kprobes.h>
+
+#define BREAKPOINT_INSTRUCTION	0xff
+
+#ifdef CONFIG_KPROBES
 #include <linux/types.h>
 #include <linux/ptrace.h>
 
 struct kprobe;
 
 typedef unsigned char kprobe_opcode_t;
-#define BREAKPOINT_INSTRUCTION	0xff
 #define MAX_INSN_SIZE 8
 #define MAX_STACK_SIZE 128
 
@@ -47,4 +51,5 @@ extern int kprobe_exceptions_notify(struct notifier_block *self,
 
 extern void arch_remove_kprobe(struct kprobe *p);
 
+#endif /* CONFIG_KPROBES */
 #endif /* _ASM_KPROBES_H */

arch/mn10300/kernel/smp.c

@@ -589,7 +589,7 @@ static void __init smp_cpu_init(void)
 	}
 	printk(KERN_INFO "Initializing CPU#%d\n", cpu_id);
 
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 	BUG_ON(current->mm);
 

arch/nios2/include/asm/Kbuild

@@ -62,3 +62,4 @@ generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += kprobes.h

arch/openrisc/include/asm/Kbuild

@@ -67,3 +67,4 @@ generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += kprobes.h

arch/openrisc/kernel/entry.S

@@ -319,7 +319,7 @@ EXCEPTION_ENTRY(_timer_handler)
 	l.j    _ret_from_intr
 	 l.nop
 
-/* ---[ 0x600: Aligment exception ]-------------------------------------- */
+/* ---[ 0x600: Alignment exception ]-------------------------------------- */
 
 EXCEPTION_ENTRY(_alignment_handler)
 	CLEAR_LWA_FLAG(r3)
@@ -331,8 +331,8 @@ EXCEPTION_ENTRY(_alignment_handler)
 	 l.nop
 
 #if 0
-EXCEPTION_ENTRY(_aligment_handler)
+EXCEPTION_ENTRY(_alignment_handler)
-//        l.mfspr r2,r0,SPR_EEAR_BASE     /* Load the efective addres */
+//        l.mfspr r2,r0,SPR_EEAR_BASE     /* Load the effective address */
 	l.addi	r2,r4,0
 //        l.mfspr r5,r0,SPR_EPCR_BASE     /* Load the insn address */
 	l.lwz   r5,PT_PC(r1)

arch/openrisc/kernel/head.S

@@ -325,7 +325,7 @@ _dispatch_do_ipage_fault:
     .org 0x500
 	EXCEPTION_HANDLE(_timer_handler)
 
-/* ---[ 0x600: Aligment exception ]-------------------------------------- */
+/* ---[ 0x600: Alignment exception ]-------------------------------------- */
     .org 0x600
 	EXCEPTION_HANDLE(_alignment_handler)
 
@@ -640,8 +640,8 @@ _flush_tlb:
 
 /* ========================================[ cache ]=== */
 
-	/* aligment here so we don't change memory offsets with
+	/* alignment here so we don't change memory offsets with
-	 * memory controler defined
+	 * memory controller defined
 	 */
 	.align 0x2000
 

arch/openrisc/kernel/vmlinux.lds.S

@@ -19,8 +19,8 @@
 
 /* TODO
  *		- clean up __offset & stuff
- *		- change all 8192 aligment to PAGE !!!
+ *		- change all 8192 alignment to PAGE !!!
- *		- recheck if all aligments are really needed
+ *		- recheck if all alignments are really needed
  */
 
 #  define LOAD_OFFSET  PAGE_OFFSET

arch/parisc/include/asm/Kbuild

@@ -28,3 +28,4 @@ generic-y += user.h
 generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += kprobes.h

arch/parisc/kernel/smp.c

@@ -279,7 +279,7 @@ smp_cpu_init(int cpunum)
 	set_cpu_online(cpunum, true);
 
 	/* Initialise the idle task for this CPU */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 	BUG_ON(current->mm);
 	enter_lazy_tlb(&init_mm, current);

arch/powerpc/boot/dts/fsl/mpc8569mds.dts

@@ -55,7 +55,7 @@ partition@1c00000 {
 				label = "kernel";
 				reg = <0x01c00000 0x002e0000>;
 			};
-			partiton@1ee0000 {
+			partition@1ee0000 {
 				label = "dtb";
 				reg = <0x01ee0000 0x00020000>;
 			};

arch/powerpc/include/asm/book3s/64/mmu.h

@@ -30,7 +30,7 @@ extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT];
 
 #ifndef __ASSEMBLY__
 /*
- * ISA 3.0 partiton and process table entry format
+ * ISA 3.0 partition and process table entry format
  */
 struct prtb_entry {
 	__be64 prtb0;

arch/powerpc/include/asm/fsl_hcalls.h

@@ -109,7 +109,7 @@ static inline unsigned int fh_send_nmi(unsigned int vcpu_mask)
 #define FH_DTPROP_MAX_PROPLEN 32768
 
 /**
- * fh_partiton_get_dtprop - get a property from a guest device tree.
+ * fh_partition_get_dtprop - get a property from a guest device tree.
  * @handle: handle of partition whose device tree is to be accessed
  * @dtpath_addr: physical address of device tree path to access
  * @propname_addr: physical address of name of property

arch/powerpc/include/asm/kprobes.h

@@ -1,5 +1,8 @@
 #ifndef _ASM_POWERPC_KPROBES_H
 #define _ASM_POWERPC_KPROBES_H
+
+#include <asm-generic/kprobes.h>
+
 #ifdef __KERNEL__
 /*
  *  Kernel Probes (KProbes)

arch/powerpc/kernel/smp.c

@@ -707,7 +707,7 @@ void start_secondary(void *unused)
 	unsigned int cpu = smp_processor_id();
 	int i, base;
 
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	smp_store_cpu_info(cpu);

arch/powerpc/lib/code-patching.c

@@ -14,6 +14,7 @@
 #include <asm/page.h>
 #include <asm/code-patching.h>
 #include <linux/uaccess.h>
+#include <linux/kprobes.h>
 
 
 int patch_instruction(unsigned int *addr, unsigned int instr)

arch/powerpc/platforms/powernv/pci-ioda.c

@@ -3034,7 +3034,7 @@ static void pnv_ioda_setup_pe_res(struct pnv_ioda_pe *pe,
 /*
  * This function is supposed to be called on basis of PE from top
  * to bottom style. So the the I/O or MMIO segment assigned to
- * parent PE could be overrided by its child PEs if necessary.
+ * parent PE could be overridden by its child PEs if necessary.
  */
 static void pnv_ioda_setup_pe_seg(struct pnv_ioda_pe *pe)
 {

arch/powerpc/platforms/pseries/iommu.c

@@ -1020,7 +1020,7 @@ static u64 enable_ddw(struct pci_dev *dev, struct device_node *pdn)
 	/* check largest block * page size > max memory hotplug addr */
 	max_addr = memory_hotplug_max();
 	if (query.largest_available_block < (max_addr >> page_shift)) {
-		dev_dbg(&dev->dev, "can't map partiton max 0x%llx with %u "
+		dev_dbg(&dev->dev, "can't map partition max 0x%llx with %u "
 			  "%llu-sized pages\n", max_addr,  query.largest_available_block,
 			  1ULL << page_shift);
 		goto out_failed;

arch/powerpc/xmon/ppc-opc.c

@@ -1587,7 +1587,7 @@ extract_tbr (unsigned long insn,
 #define CTX(op, xop)   (OP (op) | (((unsigned long)(xop)) & 0x7))
 #define CTX_MASK CTX(0x3f, 0x7)
 
-/* An User Context form instruction.  */
+/* A User Context form instruction.  */
 #define UCTX(op, xop)  (OP (op) | (((unsigned long)(xop)) & 0x1f))
 #define UCTX_MASK UCTX(0x3f, 0x1f)
 

arch/s390/include/asm/kprobes.h

@@ -27,6 +27,11 @@
  * 2005-Dec	Used as a template for s390 by Mike Grundy
  *		<grundym@us.ibm.com>
  */
+#include <asm-generic/kprobes.h>
+
+#define BREAKPOINT_INSTRUCTION	0x0002
+
+#ifdef CONFIG_KPROBES
 #include <linux/types.h>
 #include <linux/ptrace.h>
 #include <linux/percpu.h>
@@ -37,7 +42,6 @@ struct pt_regs;
 struct kprobe;
 
 typedef u16 kprobe_opcode_t;
-#define BREAKPOINT_INSTRUCTION	0x0002
 
 /* Maximum instruction size is 3 (16bit) halfwords: */
 #define MAX_INSN_SIZE		0x0003
@@ -91,4 +95,5 @@ int probe_is_insn_relative_long(u16 *insn);
 
 #define flush_insn_slot(p)	do { } while (0)
 
+#endif /* CONFIG_KPROBES */
 #endif	/* _ASM_S390_KPROBES_H */

arch/s390/kernel/processor.c

@@ -73,7 +73,7 @@ void cpu_init(void)
 	get_cpu_id(id);
 	if (machine_has_cpu_mhz)
 		update_cpu_mhz(NULL);
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 	BUG_ON(current->mm);
 	enter_lazy_tlb(&init_mm, current);

arch/s390/kernel/vtime.c

@@ -350,7 +350,7 @@ static void __add_vtimer(struct vtimer_list *timer, int periodic)
 }
 
 /*
- * add_virt_timer - add an oneshot virtual CPU timer
+ * add_virt_timer - add a oneshot virtual CPU timer
  */
 void add_virt_timer(struct vtimer_list *timer)
 {

arch/score/include/asm/Kbuild

@@ -13,3 +13,4 @@ generic-y += trace_clock.h
 generic-y += xor.h
 generic-y += serial.h
 generic-y += word-at-a-time.h
+generic-y += kprobes.h

arch/score/kernel/traps.c

@@ -336,7 +336,7 @@ void __init trap_init(void)
 	set_except_vector(18, handle_dbe);
 	flush_icache_range(DEBUG_VECTOR_BASE_ADDR, IRQ_VECTOR_BASE_ADDR);
 
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 	cpu_cache_init();
 }

arch/sh/include/asm/kprobes.h

@@ -1,13 +1,16 @@
 #ifndef __ASM_SH_KPROBES_H
 #define __ASM_SH_KPROBES_H
 
+#include <asm-generic/kprobes.h>
+
+#define BREAKPOINT_INSTRUCTION	0xc33a
+
 #ifdef CONFIG_KPROBES
 
 #include <linux/types.h>
 #include <linux/ptrace.h>
 
 typedef insn_size_t kprobe_opcode_t;
-#define BREAKPOINT_INSTRUCTION	0xc33a
 
 #define MAX_INSN_SIZE 16
 #define MAX_STACK_SIZE 64

arch/sh/kernel/irq.c

@@ -99,7 +99,7 @@ static inline void handle_one_irq(unsigned int irq)
 			"mov	%0, r4		\n"
 			"mov	r15, r8		\n"
 			"jsr	@%1		\n"
-			/* swith to the irq stack */
+			/* switch to the irq stack */
 			" mov	%2, r15		\n"
 			/* restore the stack (ring zero) */
 			"mov	r8, r15		\n"

arch/sh/kernel/smp.c

@@ -178,8 +178,8 @@ asmlinkage void start_secondary(void)
 	struct mm_struct *mm = &init_mm;
 
 	enable_mmu();
-	atomic_inc(&mm->mm_count);
+	mmgrab(mm);
-	atomic_inc(&mm->mm_users);
+	mmget(mm);
 	current->active_mm = mm;
 #ifdef CONFIG_MMU
 	enter_lazy_tlb(mm, current);

arch/sparc/include/asm/kprobes.h

@@ -1,13 +1,17 @@
 #ifndef _SPARC64_KPROBES_H
 #define _SPARC64_KPROBES_H
 
+#include <asm-generic/kprobes.h>
+
+#define BREAKPOINT_INSTRUCTION   0x91d02070 /* ta 0x70 */
+#define BREAKPOINT_INSTRUCTION_2 0x91d02071 /* ta 0x71 */
+
+#ifdef CONFIG_KPROBES
 #include <linux/types.h>
 #include <linux/percpu.h>
 
 typedef u32 kprobe_opcode_t;
 
-#define BREAKPOINT_INSTRUCTION   0x91d02070 /* ta 0x70 */
-#define BREAKPOINT_INSTRUCTION_2 0x91d02071 /* ta 0x71 */
 #define MAX_INSN_SIZE 2
 
 #define kretprobe_blacklist_size 0
@@ -48,4 +52,6 @@ int kprobe_exceptions_notify(struct notifier_block *self,
 int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
 asmlinkage void __kprobes kprobe_trap(unsigned long trap_level,
 				      struct pt_regs *regs);
+
+#endif /* CONFIG_KPROBES */
 #endif /* _SPARC64_KPROBES_H */

arch/sparc/include/asm/switch_to_32.h

@@ -9,7 +9,7 @@ extern struct thread_info *current_set[NR_CPUS];
  * Flush windows so that the VM switch which follows
  * would not pull the stack from under us.
  *
- * SWITCH_ENTER and SWITH_DO_LAZY_FPU do not work yet (e.g. SMP does not work)
+ * SWITCH_ENTER and SWITCH_DO_LAZY_FPU do not work yet (e.g. SMP does not work)
  * XXX WTF is the above comment? Found in late teen 2.4.x.
  */
 #ifdef CONFIG_SMP

arch/sparc/kernel/leon_smp.c

@@ -93,7 +93,7 @@ void leon_cpu_pre_online(void *arg)
 			     : "memory" /* paranoid */);
 
 	/* Attach to the address space of init_task. */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	while (!cpumask_test_cpu(cpuid, &smp_commenced_mask))

arch/sparc/kernel/smp_64.c

@@ -122,7 +122,7 @@ void smp_callin(void)
 	current_thread_info()->new_child = 0;
 
 	/* Attach to the address space of init_task. */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	/* inform the notifiers about the new cpu */

arch/sparc/kernel/sun4d_smp.c

@@ -93,7 +93,7 @@ void sun4d_cpu_pre_online(void *arg)
 	show_leds(cpuid);
 
 	/* Attach to the address space of init_task. */
-	atomic_inc(&init_mm.mm_count);
+	mmgrab(&init_mm);
 	current->active_mm = &init_mm;
 
 	local_ops->cache_all();