46 files changed, 90 insertions, 74 deletions
diff --git a/arch/Kconfig b/arch/Kconfig
index 8c3d957fa8e2..72f2fa189cc5 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -248,7 +248,14 @@ config HAVE_CMPXCHG_LOCAL
 config HAVE_CMPXCHG_DOUBLE
        bool
+config ARCH_WANT_IPC_PARSE_VERSION
+        bool
+config ARCH_WANT_COMPAT_IPC_PARSE_VERSION
+        bool
 config ARCH_WANT_OLD_COMPAT_IPC
+        select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
        bool
 config HAVE_ARCH_SECCOMP_FILTER
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 3de74c9f9610..d5b9b5e645cc 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -14,6 +14,7 @@ config ALPHA
        select AUTO_IRQ_AFFINITY if SMP
        select GENERIC_IRQ_SHOW
        select ARCH_WANT_OPTIONAL_GPIOLIB
+        select ARCH_WANT_IPC_PARSE_VERSION
        select ARCH_HAVE_NMI_SAFE_CMPXCHG
        select GENERIC_SMP_IDLE_THREAD
        select GENERIC_CMOS_UPDATE
diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
index d1f23b722df4..633b23b0664a 100644
--- a/arch/alpha/include/asm/unistd.h
+++ b/arch/alpha/include/asm/unistd.h
@@ -470,7 +470,6 @@
 #define NR_SYSCALLS                     504
-#define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_GETHOSTNAME
diff --git a/arch/alpha/kernel/smc37c669.c b/arch/alpha/kernel/smc37c669.c
index 0435921d41c6..c803fc76ae4f 100644
--- a/arch/alpha/kernel/smc37c669.c
+++ b/arch/alpha/kernel/smc37c669.c
@@ -933,18 +933,6 @@ void SMC37c669_display_device_info(
 *
 *--
 */
-#if 0
-/* $INCLUDE_OPTIONS$ */
-#include    "cp$inc:platform_io.h"
-/* $INCLUDE_OPTIONS_END$ */
-#include    "cp$src:common.h"
-#include    "cp$inc:prototypes.h"
-#include    "cp$src:kernel_def.h"
-#include    "cp$src:msg_def.h"
-#include    "cp$src:smcc669_def.h"
-/* Platform-specific includes */
-#include    "cp$src:platform.h"
-#endif
 #ifndef TRUE
 #define TRUE 1
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 6b86bb963a28..7980873525b2 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -11,6 +11,7 @@ config ARM
        select RTC_LIB
        select SYS_SUPPORTS_APM_EMULATION
        select GENERIC_ATOMIC64 if (CPU_V6 || !CPU_32v6K || !AEABI)
+        select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
        select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
        select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
        select HAVE_ARCH_KGDB
@@ -38,6 +39,7 @@ config ARM
        select GENERIC_IRQ_PROBE
        select GENERIC_IRQ_SHOW
        select GENERIC_IRQ_PROBE
+        select ARCH_WANT_IPC_PARSE_VERSION
        select HARDIRQS_SW_RESEND
        select CPU_PM if (SUSPEND || CPU_IDLE)
        select GENERIC_PCI_IOMAP
diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h
index 512cd1473454..0cab47d4a83f 100644
--- a/arch/arm/include/asm/unistd.h
+++ b/arch/arm/include/asm/unistd.h
@@ -446,7 +446,6 @@
 #ifdef __KERNEL__
-#define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_GETHOSTNAME
 #define __ARCH_WANT_SYS_PAUSE
diff --git a/arch/arm/lib/io-acorn.S b/arch/arm/lib/io-acorn.S
index 1b197ea7aab3..69719bad674d 100644
--- a/arch/arm/lib/io-acorn.S
+++ b/arch/arm/lib/io-acorn.S
@@ -11,13 +11,14 @@
 *
 */
 #include <linux/linkage.h>
+#include <linux/kern_levels.h>
 #include <asm/assembler.h>
                .text
                .align
 .Liosl_warning:
-                .ascii  "<4>insl/outsl not implemented, called from %08lX\0"
+                .ascii  KERN_WARNING "insl/outsl not implemented, called from %08lX\0"
                .align
 /*
diff --git a/arch/arm/mach-netx/fb.c b/arch/arm/mach-netx/fb.c
index 2cdf6ef69bee..d122ee6ab991 100644
--- a/arch/arm/mach-netx/fb.c
+++ b/arch/arm/mach-netx/fb.c
@@ -69,29 +69,6 @@ void netx_clcd_remove(struct clcd_fb *fb)
                              fb->fb.screen_base, fb->fb.fix.smem_start);
 }
-void clk_disable(struct clk *clk)
-{
-}
-int clk_set_rate(struct clk *clk, unsigned long rate)
-{
-        return 0;
-}
-int clk_enable(struct clk *clk)
-{
-        return 0;
-}
-struct clk *clk_get(struct device *dev, const char *id)
-{
-        return dev && strcmp(dev_name(dev), "fb") == 0 ? NULL : ERR_PTR(-ENOENT);
-}
-void clk_put(struct clk *clk)
-{
-}
 static AMBA_AHB_DEVICE(fb, "fb", 0, 0x00104000, { NETX_IRQ_LCD }, NULL);
 int netx_fb_init(struct clcd_board *board, struct clcd_panel *panel)
diff --git a/arch/arm/vfp/vfphw.S b/arch/arm/vfp/vfphw.S
index 2d30c7f6edd3..d50f0e486cf2 100644
--- a/arch/arm/vfp/vfphw.S
+++ b/arch/arm/vfp/vfphw.S
@@ -16,6 +16,7 @@
 */
 #include <asm/thread_info.h>
 #include <asm/vfpmacros.h>
+#include <linux/kern_levels.h>
 #include "../kernel/entry-header.S"
        .macro  DBGSTR, str
@@ -24,7 +25,7 @@
        add     r0, pc, #4
        bl      printk
        b       1f
-        .asciz  "<7>VFP: \str\n"
+        .asciz  KERN_DEBUG "VFP: \str\n"
        .balign 4
 1:      ldmfd   sp!, {r0-r3, ip, lr}
 #endif
@@ -37,7 +38,7 @@
        add     r0, pc, #4
        bl      printk
        b       1f
-        .asciz  "<7>VFP: \str\n"
+        .asciz  KERN_DEBUG "VFP: \str\n"
        .balign 4
 1:      ldmfd   sp!, {r0-r3, ip, lr}
 #endif
@@ -52,7 +53,7 @@
        add     r0, pc, #4
        bl      printk
        b       1f
-        .asciz  "<7>VFP: \str\n"
+        .asciz  KERN_DEBUG "VFP: \str\n"
        .balign 4
 1:      ldmfd   sp!, {r0-r3, ip, lr}
 #endif
diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig
index 71d38c76726c..5ade51c8a87f 100644
--- a/arch/avr32/Kconfig
+++ b/arch/avr32/Kconfig
@@ -12,6 +12,7 @@ config AVR32
        select HARDIRQS_SW_RESEND
        select GENERIC_IRQ_SHOW
        select ARCH_HAVE_CUSTOM_GPIO_H
+        select ARCH_WANT_IPC_PARSE_VERSION
        select ARCH_HAVE_NMI_SAFE_CMPXCHG
        select GENERIC_CLOCKEVENTS
        help
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
index dc5263321480..6c80aba7bf96 100644
--- a/arch/avr32/boards/atstk1000/atstk1002.c
+++ b/arch/avr32/boards/atstk1000/atstk1002.c
@@ -97,7 +97,7 @@ static struct atmel_nand_data atstk1006_nand_data __initdata = {
        .enable_pin     = GPIO_PIN_PB(29),
        .ecc_mode       = NAND_ECC_SOFT,
        .parts          = nand_partitions,
-        .num_parts      = ARRAY_SIZE(num_partitions),
+        .num_parts      = ARRAY_SIZE(nand_partitions),
 };
 #endif
diff --git a/arch/avr32/include/asm/unistd.h b/arch/avr32/include/asm/unistd.h
index f714544e5560..1358e366f4be 100644
--- a/arch/avr32/include/asm/unistd.h
+++ b/arch/avr32/include/asm/unistd.h
@@ -318,7 +318,6 @@
 /* SMP stuff */
 #define __IGNORE_getcpu
-#define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
diff --git a/arch/avr32/mm/fault.c b/arch/avr32/mm/fault.c
index f7040a1e399f..b92e60958617 100644
--- a/arch/avr32/mm/fault.c
+++ b/arch/avr32/mm/fault.c
@@ -61,10 +61,10 @@ asmlinkage void do_page_fault(unsigned long ecr, struct pt_regs *regs)
        const struct exception_table_entry *fixup;
        unsigned long address;
        unsigned long page;
-        int writeaccess;
        long signr;
        int code;
        int fault;
+        unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
        if (notify_page_fault(regs, ecr))
                return;
@@ -86,6 +86,7 @@ asmlinkage void do_page_fault(unsigned long ecr, struct pt_regs *regs)
        local_irq_enable();
+retry:
        down_read(&mm->mmap_sem);
        vma = find_vma(mm, address);
@@ -104,7 +105,6 @@ asmlinkage void do_page_fault(unsigned long ecr, struct pt_regs *regs)
         */
 good_area:
        code = SEGV_ACCERR;
-        writeaccess = 0;
        switch (ecr) {
        case ECR_PROTECTION_X:
@@ -121,7 +121,7 @@ good_area:
        case ECR_TLB_MISS_W:
                if (!(vma->vm_flags & VM_WRITE))
                        goto bad_area;
-                writeaccess = 1;
+                flags |= FAULT_FLAG_WRITE;
                break;
        default:
                panic("Unhandled case %lu in do_page_fault!", ecr);
@@ -132,7 +132,11 @@ good_area:
         * sure we exit gracefully rather than endlessly redo the
         * fault.
         */
-        fault = handle_mm_fault(mm, vma, address, writeaccess ? FAULT_FLAG_WRITE : 0);
+        fault = handle_mm_fault(mm, vma, address, flags);
+        if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+                return;
        if (unlikely(fault & VM_FAULT_ERROR)) {
                if (fault & VM_FAULT_OOM)
                        goto out_of_memory;
@@ -140,10 +144,23 @@ good_area:
                        goto do_sigbus;
                BUG();
        }
-        if (fault & VM_FAULT_MAJOR)
-                tsk->maj_flt++;
+        if (flags & FAULT_FLAG_ALLOW_RETRY) {
-        else
+                if (fault & VM_FAULT_MAJOR)
-                tsk->min_flt++;
+                        tsk->maj_flt++;
+                else
+                        tsk->min_flt++;
+                if (fault & VM_FAULT_RETRY) {
+                        flags &= ~FAULT_FLAG_ALLOW_RETRY;
+                        /*
+                         * No need to up_read(&mm->mmap_sem) as we would have
+                         * already released it in __lock_page_or_retry() in
+                         * mm/filemap.c.
+                         */
+                        goto retry;
+                }
+        }
        up_read(&mm->mmap_sem);
        return;
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index ec44fc6c34ca..f34861920634 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -33,6 +33,7 @@ config BLACKFIN
        select HAVE_PERF_EVENTS
        select ARCH_HAVE_CUSTOM_GPIO_H
        select ARCH_WANT_OPTIONAL_GPIOLIB
+        select ARCH_WANT_IPC_PARSE_VERSION
        select HAVE_GENERIC_HARDIRQS
        select GENERIC_ATOMIC64
        select GENERIC_IRQ_PROBE
diff --git a/arch/blackfin/include/asm/unistd.h b/arch/blackfin/include/asm/unistd.h
index 3287222cba34..5b2a0748d7d3 100644
--- a/arch/blackfin/include/asm/unistd.h
+++ b/arch/blackfin/include/asm/unistd.h
@@ -434,7 +434,6 @@
 #define __IGNORE_getcpu
 #ifdef __KERNEL__
-#define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index bb344650a14f..e92215428a37 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -42,6 +42,7 @@ config CRIS
        select HAVE_IDE
        select GENERIC_ATOMIC64
        select HAVE_GENERIC_HARDIRQS
+        select ARCH_WANT_IPC_PARSE_VERSION
        select GENERIC_IRQ_SHOW
        select GENERIC_IOMAP
        select GENERIC_SMP_IDLE_THREAD if ETRAX_ARCH_V32
diff --git a/arch/cris/include/asm/unistd.h b/arch/cris/include/asm/unistd.h
index f921b8b0f97e..51873a446f87 100644
--- a/arch/cris/include/asm/unistd.h
+++ b/arch/cris/include/asm/unistd.h
@@ -347,7 +347,6 @@
 #include <arch/unistd.h>
-#define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_OLD_STAT
 #define __ARCH_WANT_STAT64
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index a685910d2d5c..971c0a19facb 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -9,6 +9,7 @@ config FRV
        select GENERIC_IRQ_SHOW
        select ARCH_HAVE_NMI_SAFE_CMPXCHG
        select GENERIC_CPU_DEVICES
+        select ARCH_WANT_IPC_PARSE_VERSION
 config ZONE_DMA
        bool
diff --git a/arch/frv/include/asm/unistd.h b/arch/frv/include/asm/unistd.h
index a569dff7cd59..67f23a311db6 100644
--- a/arch/frv/include/asm/unistd.h
+++ b/arch/frv/include/asm/unistd.h
@@ -349,7 +349,6 @@
 #define NR_syscalls 338
-#define __ARCH_WANT_IPC_PARSE_VERSION
 /* #define __ARCH_WANT_OLD_READDIR */
 #define __ARCH_WANT_OLD_STAT
 #define __ARCH_WANT_STAT64
diff --git a/arch/frv/kernel/kernel_thread.S b/arch/frv/kernel/kernel_thread.S
index 4531c830d20b..f0e52943f923 100644
--- a/arch/frv/kernel/kernel_thread.S
+++ b/arch/frv/kernel/kernel_thread.S
@@ -10,10 +10,10 @@
 */
 #include <linux/linkage.h>
+#include <linux/kern_levels.h>
 #include <asm/unistd.h>
 #define CLONE_VM        0x00000100      /* set if VM shared between processes */
-#define KERN_ERR        "<3>"
        .section .rodata
 kernel_thread_emsg:
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 56e890df5053..5e8a0d9a09ce 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -3,6 +3,7 @@ config H8300
        default y
        select HAVE_IDE
        select HAVE_GENERIC_HARDIRQS
+        select ARCH_WANT_IPC_PARSE_VERSION
        select GENERIC_IRQ_SHOW
        select GENERIC_CPU_DEVICES
diff --git a/arch/h8300/include/asm/unistd.h b/arch/h8300/include/asm/unistd.h
index 718511303b4e..5cd882801d79 100644
--- a/arch/h8300/include/asm/unistd.h
+++ b/arch/h8300/include/asm/unistd.h
@@ -331,7 +331,6 @@
 #define NR_syscalls 321
-#define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_OLD_STAT
 #define __ARCH_WANT_STAT64
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index b638d5bfa14d..49498bbb9616 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -7,6 +7,7 @@ config M32R
        select HAVE_KERNEL_GZIP
        select HAVE_KERNEL_BZIP2
        select HAVE_KERNEL_LZMA
+        select ARCH_WANT_IPC_PARSE_VERSION
        select HAVE_GENERIC_HARDIRQS
        select GENERIC_IRQ_PROBE
        select GENERIC_IRQ_SHOW
diff --git a/arch/m32r/include/asm/unistd.h b/arch/m32r/include/asm/unistd.h
index 3e1db561aacc..d5e66a480782 100644
--- a/arch/m32r/include/asm/unistd.h
+++ b/arch/m32r/include/asm/unistd.h
@@ -336,7 +336,6 @@
 #define NR_syscalls 326
-#define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 147120128260..0b0f8b8c4a26 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -10,6 +10,7 @@ config M68K
        select GENERIC_STRNCPY_FROM_USER if MMU
        select GENERIC_STRNLEN_USER if MMU
        select FPU if MMU
+        select ARCH_WANT_IPC_PARSE_VERSION
        select ARCH_USES_GETTIMEOFFSET if MMU && !COLDFIRE
 config RWSEM_GENERIC_SPINLOCK
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index ea0b502f845e..045cfd6a9e31 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -357,7 +357,6 @@
 #define NR_syscalls             347
-#define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_OLD_STAT
 #define __ARCH_WANT_STAT64
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 0bf44231aaf9..ab9afcaa7f6a 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -15,6 +15,7 @@ config MICROBLAZE
        select TRACING_SUPPORT
        select OF
        select OF_EARLY_FLATTREE
+        select ARCH_WANT_IPC_PARSE_VERSION
        select IRQ_DOMAIN
        select HAVE_GENERIC_HARDIRQS
        select GENERIC_IRQ_PROBE
diff --git a/arch/microblaze/include/asm/unistd.h b/arch/microblaze/include/asm/unistd.h
index d20ffbc86beb..6985e6e9d826 100644
--- a/arch/microblaze/include/asm/unistd.h
+++ b/arch/microblaze/include/asm/unistd.h
@@ -400,7 +400,6 @@
 #ifdef __KERNEL__
 #ifndef __ASSEMBLY__
-#define __ARCH_WANT_IPC_PARSE_VERSION
 /* #define __ARCH_WANT_OLD_READDIR */
 /* #define __ARCH_WANT_OLD_STAT */
 #define __ARCH_WANT_STAT64
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 750429018534..e3efc06e6409 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -20,12 +20,14 @@ config MIPS
        select ARCH_BINFMT_ELF_RANDOMIZE_PIE
        select RTC_LIB if !MACH_LOONGSON
        select GENERIC_ATOMIC64 if !64BIT
+        select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
        select HAVE_DMA_ATTRS
        select HAVE_DMA_API_DEBUG
        select HAVE_GENERIC_HARDIRQS
        select GENERIC_IRQ_PROBE
        select GENERIC_IRQ_SHOW
        select HAVE_ARCH_JUMP_LABEL
+        select ARCH_WANT_IPC_PARSE_VERSION
        select IRQ_FORCED_THREADING
        select HAVE_MEMBLOCK
        select HAVE_MEMBLOCK_NODE_MAP
diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h
index d8dad5340ea3..bebbde01be92 100644
--- a/arch/mips/include/asm/unistd.h
+++ b/arch/mips/include/asm/unistd.h
@@ -1034,7 +1034,6 @@
 #ifndef __ASSEMBLY__
 #define __ARCH_OMIT_COMPAT_SYS_GETDENTS64
-#define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 687f9b4a2ed6..5cfb086b3903 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -3,6 +3,7 @@ config MN10300
        select HAVE_OPROFILE
        select HAVE_GENERIC_HARDIRQS
        select GENERIC_IRQ_SHOW
+        select ARCH_WANT_IPC_PARSE_VERSION
        select HAVE_ARCH_TRACEHOOK
        select HAVE_ARCH_KGDB
        select HAVE_NMI_WATCHDOG if MN10300_WD_TIMER
diff --git a/arch/mn10300/include/asm/unistd.h b/arch/mn10300/include/asm/unistd.h
index 9051f921cbc7..866eb14749d7 100644
--- a/arch/mn10300/include/asm/unistd.h
+++ b/arch/mn10300/include/asm/unistd.h
@@ -358,7 +358,6 @@
 /*
 * specify the deprecated syscalls we want to support on this arch
 */
-#define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_OLD_STAT
 #define __ARCH_WANT_STAT64
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 9a5d3cdc3e12..352f416269ce 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -115,11 +115,13 @@ config PPC
        select HAVE_OPROFILE
        select HAVE_SYSCALL_WRAPPERS if PPC64
        select GENERIC_ATOMIC64 if PPC32
+        select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
        select HAVE_IRQ_WORK
        select HAVE_PERF_EVENTS
        select HAVE_REGS_AND_STACK_ACCESS_API
        select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64
        select HAVE_GENERIC_HARDIRQS
+        select ARCH_WANT_IPC_PARSE_VERSION
        select SPARSE_IRQ
        select IRQ_PER_CPU
        select IRQ_DOMAIN
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index d3d1b5efd7eb..bd377a368611 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -389,7 +389,6 @@
 #include <linux/compiler.h>
 #include <linux/linkage.h>
-#define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index a39b4690c171..296cd32466df 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -85,6 +85,7 @@ config S390
        select HAVE_ARCH_MUTEX_CPU_RELAX
        select HAVE_ARCH_JUMP_LABEL if !MARCH_G5
        select ARCH_SAVE_PAGE_KEYS if HIBERNATION
+        select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
        select HAVE_MEMBLOCK
        select HAVE_MEMBLOCK_NODE_MAP
        select HAVE_CMPXCHG_LOCAL
@@ -117,6 +118,7 @@ config S390
        select ARCH_INLINE_WRITE_UNLOCK_BH
        select ARCH_INLINE_WRITE_UNLOCK_IRQ
        select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE
+        select ARCH_WANT_IPC_PARSE_VERSION
        select GENERIC_SMP_IDLE_THREAD
        select GENERIC_TIME_VSYSCALL
        select GENERIC_CLOCKEVENTS
diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h
index 2e37157ba6a9..6756e78f4808 100644
--- a/arch/s390/include/asm/unistd.h
+++ b/arch/s390/include/asm/unistd.h
@@ -388,7 +388,6 @@
 #define __IGNORE_recvmmsg
 #define __IGNORE_sendmmsg
-#define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_SYS_ALARM
 #define __ARCH_WANT_SYS_GETHOSTNAME
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index a24595d83ad6..36f5141e8041 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -21,6 +21,7 @@ config SUPERH
        select HAVE_KERNEL_LZMA
        select HAVE_KERNEL_XZ
        select HAVE_KERNEL_LZO
+        select ARCH_WANT_IPC_PARSE_VERSION
        select HAVE_SYSCALL_TRACEPOINTS
        select HAVE_REGS_AND_STACK_ACCESS_API
        select HAVE_GENERIC_HARDIRQS
@@ -50,6 +51,7 @@ config SUPERH32
        select HAVE_DYNAMIC_FTRACE
        select HAVE_FUNCTION_TRACE_MCOUNT_TEST
        select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
+        select ARCH_WANT_IPC_PARSE_VERSION
        select HAVE_FUNCTION_GRAPH_TRACER
        select HAVE_ARCH_KGDB
        select HAVE_HW_BREAKPOINT
diff --git a/arch/sh/include/asm/unistd.h b/arch/sh/include/asm/unistd.h
index e800a38c9f8d..7bc67076baac 100644
--- a/arch/sh/include/asm/unistd.h
+++ b/arch/sh/include/asm/unistd.h
@@ -6,7 +6,6 @@
 # endif
 # define __ARCH_WANT_SYS_RT_SIGSUSPEND
-# define __ARCH_WANT_IPC_PARSE_VERSION
 # define __ARCH_WANT_OLD_READDIR
 # define __ARCH_WANT_OLD_STAT
 # define __ARCH_WANT_STAT64
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index e74ff1377626..67f1f6f5f4e1 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -27,6 +27,7 @@ config SPARC
        select HAVE_ARCH_JUMP_LABEL
        select HAVE_GENERIC_HARDIRQS
        select GENERIC_IRQ_SHOW
+        select ARCH_WANT_IPC_PARSE_VERSION
        select USE_GENERIC_SMP_HELPERS if SMP
        select GENERIC_PCI_IOMAP
        select HAVE_NMI_WATCHDOG if SPARC64
diff --git a/arch/sparc/include/asm/unistd.h b/arch/sparc/include/asm/unistd.h
index c7cb0af0eb59..fb2693464807 100644
--- a/arch/sparc/include/asm/unistd.h
+++ b/arch/sparc/include/asm/unistd.h
@@ -423,7 +423,6 @@
 #endif
 #ifdef __KERNEL__
-#define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_ALARM
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index c38e5aaae56f..0dc1f5786081 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -470,7 +470,7 @@ SYSCALL_DEFINE6(sparc_ipc, unsigned int, call, int, first, unsigned long, second
                switch (call) {
                case SHMAT: {
                        ulong raddr;
-                        err = do_shmat(first, ptr, (int)second, &raddr);
+                        err = do_shmat(first, ptr, (int)second, &raddr, SHMLBA);
                        if (!err) {
                                if (put_user(raddr,
                                             (ulong __user *) third))
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index c70684f859e1..ba2657c49217 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -70,6 +70,7 @@ config X86
        select HAVE_ARCH_JUMP_LABEL
        select HAVE_TEXT_POKE_SMP
        select HAVE_GENERIC_HARDIRQS
+        select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
        select SPARSE_IRQ
        select GENERIC_FIND_FIRST_BIT
        select GENERIC_IRQ_PROBE
@@ -84,6 +85,7 @@ config X86
        select GENERIC_IOMAP
        select DCACHE_WORD_ACCESS
        select GENERIC_SMP_IDLE_THREAD
+        select ARCH_WANT_IPC_PARSE_VERSION if X86_32
        select HAVE_ARCH_SECCOMP_FILTER
        select BUILDTIME_EXTABLE_SORT
        select GENERIC_CMOS_UPDATE
diff --git a/arch/x86/include/asm/unistd.h b/arch/x86/include/asm/unistd.h
index 4437001d8e3d..0d9776e9e2dc 100644
--- a/arch/x86/include/asm/unistd.h
+++ b/arch/x86/include/asm/unistd.h
@@ -15,7 +15,6 @@
 # ifdef CONFIG_X86_32
 #  include <asm/unistd_32.h>
-#  define __ARCH_WANT_IPC_PARSE_VERSION
 #  define __ARCH_WANT_STAT64
 #  define __ARCH_WANT_SYS_IPC
 #  define __ARCH_WANT_SYS_OLD_MMAP
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 41857970517f..ed858e9e9a74 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -944,7 +944,7 @@ void __init e820_reserve_resources(void)
        for (i = 0; i < e820_saved.nr_map; i++) {
                struct e820entry *entry = &e820_saved.map[i];
                firmware_map_add_early(entry->addr,
-                        entry->addr + entry->size - 1,
+                        entry->addr + entry->size,
                        e820_type_to_string(entry->type));
        }
 }
diff --git a/arch/xtensa/kernel/syscall.c b/arch/xtensa/kernel/syscall.c
index 816e6d0d686c..05b3f093d5d7 100644
--- a/arch/xtensa/kernel/syscall.c
+++ b/arch/xtensa/kernel/syscall.c
@@ -44,7 +44,7 @@ asmlinkage long xtensa_shmat(int shmid, char __user *shmaddr, int shmflg)
        unsigned long ret;
        long err;
-        err = do_shmat(shmid, shmaddr, shmflg, &ret);
+        err = do_shmat(shmid, shmaddr, shmflg, &ret, SHMLBA);
        if (err)
                return err;
        return (long)ret;
diff --git a/arch/xtensa/mm/fault.c b/arch/xtensa/mm/fault.c
index b17885a0b508..5a74c53bc69c 100644
--- a/arch/xtensa/mm/fault.c
+++ b/arch/xtensa/mm/fault.c
@@ -44,6 +44,7 @@ void do_page_fault(struct pt_regs *regs)
        int is_write, is_exec;
        int fault;
+        unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
        info.si_code = SEGV_MAPERR;
@@ -71,6 +72,7 @@ void do_page_fault(struct pt_regs *regs)
               address, exccause, regs->pc, is_write? "w":"", is_exec? "x":"");
 #endif
+retry:
        down_read(&mm->mmap_sem);
        vma = find_vma(mm, address);
@@ -93,6 +95,7 @@ good_area:
        if (is_write) {
                if (!(vma->vm_flags & VM_WRITE))
                        goto bad_area;
+                flags |= FAULT_FLAG_WRITE;
        } else if (is_exec) {
                if (!(vma->vm_flags & VM_EXEC))
                        goto bad_area;
@@ -104,7 +107,11 @@ good_area:
         * make sure we exit gracefully rather than endlessly redo
         * the fault.
         */
-        fault = handle_mm_fault(mm, vma, address, is_write ? FAULT_FLAG_WRITE : 0);
+        fault = handle_mm_fault(mm, vma, address, flags);
+        if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
+                return;
        if (unlikely(fault & VM_FAULT_ERROR)) {
                if (fault & VM_FAULT_OOM)
                        goto out_of_memory;
@@ -112,10 +119,22 @@ good_area:
                        goto do_sigbus;
                BUG();
        }
-        if (fault & VM_FAULT_MAJOR)
+        if (flags & FAULT_FLAG_ALLOW_RETRY) {
-                current->maj_flt++;
+                if (fault & VM_FAULT_MAJOR)
-        else
+                        current->maj_flt++;
-                current->min_flt++;
+                else
+                        current->min_flt++;
+                if (fault & VM_FAULT_RETRY) {
+                        flags &= ~FAULT_FLAG_ALLOW_RETRY;
+                         /* No need to up_read(&mm->mmap_sem) as we would
+                         * have already released it in __lock_page_or_retry
+                         * in mm/filemap.c.
+                         */
+                        goto retry;
+                }
+        }
        up_read(&mm->mmap_sem);
        return;