55 files changed, 165 insertions, 163 deletions

diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c
index d74990717559..c02dc8116a18 100644
--- a/arch/arm/common/gic.c
+++ b/arch/arm/common/gic.c
@@ -68,6 +68,7 @@ static void gic_unmask_irq(unsigned int irq)
         writel(mask, gic_dist_base + GIC_DIST_ENABLE_SET + (irq / 32) * 4);
 }
 
+#ifdef CONFIG_SMP
 static void gic_set_cpu(struct irqdesc *desc, unsigned int irq, unsigned int cpu)
 {
         void __iomem *reg = gic_dist_base + GIC_DIST_TARGET + (irq & ~3);
@@ -78,6 +79,7 @@ static void gic_set_cpu(struct irqdesc *desc, unsigned int irq, unsigned int cpu
         val |= 1 << (cpu + shift);
         writel(val, reg);
 }
+#endif
 
 static struct irqchip gic_chip = {
         .ack            = gic_ack_irq,
diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c
index a7bd85700152..e8053d16829b 100644
--- a/arch/arm/common/locomo.c
+++ b/arch/arm/common/locomo.c
@@ -27,7 +27,6 @@
 #include <linux/spinlock.h>
 
 #include <asm/hardware.h>
-#include <asm/mach-types.h>
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/mach/irq.h>
diff --git a/arch/arm/mach-imx/leds-mx1ads.c b/arch/arm/mach-imx/leds-mx1ads.c
index e6399b06e4a4..79236404aec2 100644
--- a/arch/arm/mach-imx/leds-mx1ads.c
+++ b/arch/arm/mach-imx/leds-mx1ads.c
@@ -17,7 +17,6 @@
 #include <asm/system.h>
 #include <asm/io.h>
 #include <asm/leds.h>
-#include <asm/mach-types.h>
 #include "leds.h"
 
 /*
diff --git a/arch/arm/mach-iop3xx/common.c b/arch/arm/mach-iop3xx/common.c
index bda7394ec06c..fdeeef489a73 100644
--- a/arch/arm/mach-iop3xx/common.c
+++ b/arch/arm/mach-iop3xx/common.c
@@ -27,7 +27,6 @@ unsigned long iop3xx_pcibios_min_mem = 0;
 /*
  * Default power-off for EP80219
  */
-#include <asm/mach-types.h>
 
 static inline void ep80219_send_to_pic(__u8 c) {
 }
diff --git a/arch/arm/mach-iop3xx/iop321-time.c b/arch/arm/mach-iop3xx/iop321-time.c
index 0039793b694a..d67ac0e5d438 100644
--- a/arch/arm/mach-iop3xx/iop321-time.c
+++ b/arch/arm/mach-iop3xx/iop321-time.c
@@ -23,7 +23,6 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/uaccess.h>
-#include <asm/mach-types.h>
 #include <asm/mach/irq.h>
 #include <asm/mach/time.h>
 
diff --git a/arch/arm/mach-iop3xx/iop331-time.c b/arch/arm/mach-iop3xx/iop331-time.c
index 8eddfac7e2b0..3c1f0ebbd636 100644
--- a/arch/arm/mach-iop3xx/iop331-time.c
+++ b/arch/arm/mach-iop3xx/iop331-time.c
@@ -23,7 +23,6 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/uaccess.h>
-#include <asm/mach-types.h>
 #include <asm/mach/irq.h>
 #include <asm/mach/time.h>
 
diff --git a/arch/arm/mach-iop3xx/iq31244-mm.c b/arch/arm/mach-iop3xx/iq31244-mm.c
index b01042f7de71..55992ab586ba 100644
--- a/arch/arm/mach-iop3xx/iq31244-mm.c
+++ b/arch/arm/mach-iop3xx/iq31244-mm.c
@@ -21,7 +21,6 @@
 #include <asm/page.h>
 
 #include <asm/mach/map.h>
-#include <asm/mach-types.h>
 
 
 /*
diff --git a/arch/arm/mach-iop3xx/iq80321-mm.c b/arch/arm/mach-iop3xx/iq80321-mm.c
index 1580c7ed2b9d..bb3e9e5a9aff 100644
--- a/arch/arm/mach-iop3xx/iq80321-mm.c
+++ b/arch/arm/mach-iop3xx/iq80321-mm.c
@@ -21,7 +21,6 @@
 #include <asm/page.h>
 
 #include <asm/mach/map.h>
-#include <asm/mach-types.h>
 
 
 /*
diff --git a/arch/arm/mach-iop3xx/iq80331-mm.c b/arch/arm/mach-iop3xx/iq80331-mm.c
index ee8c333e115f..129eb49b0670 100644
--- a/arch/arm/mach-iop3xx/iq80331-mm.c
+++ b/arch/arm/mach-iop3xx/iq80331-mm.c
@@ -21,7 +21,6 @@
 #include <asm/page.h>
 
 #include <asm/mach/map.h>
-#include <asm/mach-types.h>
 
 
 /*
diff --git a/arch/arm/mach-iop3xx/iq80332-mm.c b/arch/arm/mach-iop3xx/iq80332-mm.c
index 084afcdfb1eb..2feaf7591f53 100644
--- a/arch/arm/mach-iop3xx/iq80332-mm.c
+++ b/arch/arm/mach-iop3xx/iq80332-mm.c
@@ -21,7 +21,6 @@
 #include <asm/page.h>
 
 #include <asm/mach/map.h>
-#include <asm/mach-types.h>
 
 
 /*
diff --git a/arch/arm/mach-ixp2000/core.c b/arch/arm/mach-ixp2000/core.c
index 74bd2fd602d4..f34797a46a23 100644
--- a/arch/arm/mach-ixp2000/core.c
+++ b/arch/arm/mach-ixp2000/core.c
@@ -30,7 +30,6 @@
 #include <asm/setup.h>
 #include <asm/memory.h>
 #include <asm/hardware.h>
-#include <asm/mach-types.h>
 #include <asm/irq.h>
 #include <asm/system.h>
 #include <asm/tlbflush.h>
diff --git a/arch/arm/mach-ixp2000/pci.c b/arch/arm/mach-ixp2000/pci.c
index 0788fb2b5c10..522205acb316 100644
--- a/arch/arm/mach-ixp2000/pci.c
+++ b/arch/arm/mach-ixp2000/pci.c
@@ -28,7 +28,6 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/system.h>
-#include <asm/mach-types.h>
 #include <asm/hardware.h>
 
 #include <asm/mach/pci.h>
diff --git a/arch/arm/mach-l7200/core.c b/arch/arm/mach-l7200/core.c
index 2a7fee2a7635..5fd8c9f97f9a 100644
--- a/arch/arm/mach-l7200/core.c
+++ b/arch/arm/mach-l7200/core.c
@@ -12,7 +12,6 @@
 #include <asm/page.h>
 
 #include <asm/mach/map.h>
-#include <asm/arch/hardware.h>
 
 /*
  * IRQ base register
diff --git a/arch/arm/mach-pxa/corgi_lcd.c b/arch/arm/mach-pxa/corgi_lcd.c
index c5efcd04fcbc..c02ef7c0f7ef 100644
--- a/arch/arm/mach-pxa/corgi_lcd.c
+++ b/arch/arm/mach-pxa/corgi_lcd.c
@@ -19,7 +19,6 @@
 #include <linux/kernel.h>
 #include <linux/device.h>
 #include <linux/module.h>
-#include <asm/mach-types.h>
 #include <asm/arch/akita.h>
 #include <asm/arch/corgi.h>
 #include <asm/arch/hardware.h>
diff --git a/arch/arm/mach-pxa/generic.c b/arch/arm/mach-pxa/generic.c
index a45aaa115a76..d0660a8c4b70 100644
--- a/arch/arm/mach-pxa/generic.c
+++ b/arch/arm/mach-pxa/generic.c
@@ -34,6 +34,7 @@
 #include <asm/arch/udc.h>
 #include <asm/arch/pxafb.h>
 #include <asm/arch/mmc.h>
+#include <asm/arch/i2c.h>
 
 #include "generic.h"
 
diff --git a/arch/arm/mach-s3c2410/usb-simtec.c b/arch/arm/mach-s3c2410/usb-simtec.c
index f021fd82be52..5098b50158a3 100644
--- a/arch/arm/mach-s3c2410/usb-simtec.c
+++ b/arch/arm/mach-s3c2410/usb-simtec.c
@@ -40,7 +40,6 @@
 #include <asm/hardware.h>
 #include <asm/io.h>
 #include <asm/irq.h>
-#include <asm/mach-types.h>
 
 #include "devs.h"
 #include "usb-simtec.h"
diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c
index 58c1330d8638..a30e0451df72 100644
--- a/arch/arm/mach-versatile/core.c
+++ b/arch/arm/mach-versatile/core.c
@@ -30,7 +30,6 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/leds.h>
-#include <asm/mach-types.h>
 #include <asm/hardware/amba.h>
 #include <asm/hardware/amba_clcd.h>
 #include <asm/hardware/arm_timer.h>
diff --git a/arch/arm/mach-versatile/pci.c b/arch/arm/mach-versatile/pci.c
index d1565e851f0e..b80d57d51699 100644
--- a/arch/arm/mach-versatile/pci.c
+++ b/arch/arm/mach-versatile/pci.c
@@ -29,7 +29,6 @@
 #include <asm/irq.h>
 #include <asm/system.h>
 #include <asm/mach/pci.h>
-#include <asm/mach-types.h>
 
 /*
  * these spaces are mapped using the following base registers:
diff --git a/arch/arm/mm/cache-v6.S b/arch/arm/mm/cache-v6.S
index 85c10a71e7c6..72966d90e956 100644
--- a/arch/arm/mm/cache-v6.S
+++ b/arch/arm/mm/cache-v6.S
@@ -18,6 +18,7 @@
 #define HARVARD_CACHE
 #define CACHE_LINE_SIZE         32
 #define D_CACHE_LINE_SIZE       32
+#define BTB_FLUSH_SIZE          8
 
 /*
  *      v6_flush_cache_all()
@@ -98,7 +99,13 @@ ENTRY(v6_coherent_user_range)
         mcr     p15, 0, r0, c7, c5, 1           @ invalidate I line
 #endif
         mcr     p15, 0, r0, c7, c5, 7           @ invalidate BTB entry
-        add     r0, r0, #CACHE_LINE_SIZE
+        add     r0, r0, #BTB_FLUSH_SIZE
+        mcr     p15, 0, r0, c7, c5, 7           @ invalidate BTB entry
+        add     r0, r0, #BTB_FLUSH_SIZE
+        mcr     p15, 0, r0, c7, c5, 7           @ invalidate BTB entry
+        add     r0, r0, #BTB_FLUSH_SIZE
+        mcr     p15, 0, r0, c7, c5, 7           @ invalidate BTB entry
+        add     r0, r0, #BTB_FLUSH_SIZE
         cmp     r0, r1
         blo     1b
 #ifdef HARVARD_CACHE
diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c
index b0208c992576..c9a03981b785 100644
--- a/arch/arm/mm/flush.c
+++ b/arch/arm/mm/flush.c
@@ -17,6 +17,24 @@
 
 #ifdef CONFIG_CPU_CACHE_VIPT
 
+#define ALIAS_FLUSH_START       0xffff4000
+
+#define TOP_PTE(x)      pte_offset_kernel(top_pmd, x)
+
+static void flush_pfn_alias(unsigned long pfn, unsigned long vaddr)
+{
+        unsigned long to = ALIAS_FLUSH_START + (CACHE_COLOUR(vaddr) << PAGE_SHIFT);
+
+        set_pte(TOP_PTE(to), pfn_pte(pfn, PAGE_KERNEL));
+        flush_tlb_kernel_page(to);
+
+        asm(    "mcrr   p15, 0, %1, %0, c14\n"
+        "       mcrr    p15, 0, %1, %0, c5\n"
+            :
+            : "r" (to), "r" (to + PAGE_SIZE - L1_CACHE_BYTES)
+            : "cc");
+}
+
 void flush_cache_mm(struct mm_struct *mm)
 {
         if (cache_is_vivt()) {
@@ -67,24 +85,6 @@ void flush_cache_page(struct vm_area_struct *vma, unsigned long user_addr, unsig
         if (cache_is_vipt_aliasing())
                 flush_pfn_alias(pfn, user_addr);
 }
-
-#define ALIAS_FLUSH_START       0xffff4000
-
-#define TOP_PTE(x)      pte_offset_kernel(top_pmd, x)
-
-static void flush_pfn_alias(unsigned long pfn, unsigned long vaddr)
-{
-        unsigned long to = ALIAS_FLUSH_START + (CACHE_COLOUR(vaddr) << PAGE_SHIFT);
-
-        set_pte(TOP_PTE(to), pfn_pte(pfn, PAGE_KERNEL));
-        flush_tlb_kernel_page(to);
-
-        asm(    "mcrr   p15, 0, %1, %0, c14\n"
-        "       mcrr    p15, 0, %1, %0, c5\n"
-            :
-            : "r" (to), "r" (to + PAGE_SIZE - L1_CACHE_BYTES)
-            : "cc");
-}
 #else
 #define flush_pfn_alias(pfn,vaddr)      do { } while (0)
 #endif
diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c
index 6cb20aea7f51..02bcc6c1cd1b 100644
--- a/arch/arm/plat-omap/common.c
+++ b/arch/arm/plat-omap/common.c
@@ -25,7 +25,6 @@
 #include <asm/mach/map.h>
 #include <asm/hardware/clock.h>
 #include <asm/io.h>
-#include <asm/mach-types.h>
 #include <asm/setup.h>
 
 #include <asm/arch/board.h>
diff --git a/arch/arm/plat-omap/cpu-omap.c b/arch/arm/plat-omap/cpu-omap.c
index 409aac2c4b9d..fd894bb00107 100644
--- a/arch/arm/plat-omap/cpu-omap.c
+++ b/arch/arm/plat-omap/cpu-omap.c
@@ -21,7 +21,6 @@
 #include <linux/err.h>
 
 #include <asm/hardware.h>
-#include <asm/mach-types.h>
 #include <asm/io.h>
 #include <asm/system.h>
 
diff --git a/arch/arm/plat-omap/usb.c b/arch/arm/plat-omap/usb.c
index 98f1c76f8660..14a836d7ac25 100644
--- a/arch/arm/plat-omap/usb.c
+++ b/arch/arm/plat-omap/usb.c
@@ -33,7 +33,6 @@
 #include <asm/irq.h>
 #include <asm/system.h>
 #include <asm/hardware.h>
-#include <asm/mach-types.h>
 
 #include <asm/arch/mux.h>
 #include <asm/arch/usb.h>
diff --git a/arch/i386/kernel/cpu/amd.c b/arch/i386/kernel/cpu/amd.c
index 73aeaf5a9d4e..4c1ddf2b57cc 100644
--- a/arch/i386/kernel/cpu/amd.c
+++ b/arch/i386/kernel/cpu/amd.c
@@ -28,6 +28,22 @@ static void __init init_amd(struct cpuinfo_x86 *c)
         int mbytes = num_physpages >> (20-PAGE_SHIFT);
         int r;
 
+#ifdef CONFIG_SMP
+        unsigned long value;
+
+        /* Disable TLB flush filter by setting HWCR.FFDIS on K8
+         * bit 6 of msr C001_0015
+         *
+         * Errata 63 for SH-B3 steppings
+         * Errata 122 for all steppings (F+ have it disabled by default)
+         */
+        if (c->x86 == 15) {
+                rdmsrl(MSR_K7_HWCR, value);
+                value |= 1 << 6;
+                wrmsrl(MSR_K7_HWCR, value);
+        }
+#endif
+
         /*
          *      FIXME: We should handle the K5 here. Set up the write
          *      range and also turn on MSR 83 bits 4 and 31 (write alloc,
diff --git a/arch/ppc64/kernel/bpa_iommu.c b/arch/ppc64/kernel/bpa_iommu.c
index f33a7bccb0d7..507eb9d0223f 100644
--- a/arch/ppc64/kernel/bpa_iommu.c
+++ b/arch/ppc64/kernel/bpa_iommu.c
@@ -99,7 +99,11 @@ get_iost_entry(unsigned long iopt_base, unsigned long io_address, unsigned page_
                 break;
 
         default: /* not a known compile time constant */
-                BUILD_BUG_ON(1);
+                {
+                        /* BUILD_BUG_ON() is not usable here */
+                        extern void __get_iost_entry_bad_page_size(void);
+                        __get_iost_entry_bad_page_size();
+                }
                 break;
         }
 
diff --git a/arch/um/drivers/port_kern.c b/arch/um/drivers/port_kern.c
index c41efd207fcc..189839e4f1d4 100644
--- a/arch/um/drivers/port_kern.c
+++ b/arch/um/drivers/port_kern.c
@@ -7,7 +7,6 @@
 #include "linux/sched.h"
 #include "linux/slab.h"
 #include "linux/interrupt.h"
-#include "linux/irq.h"
 #include "linux/spinlock.h"
 #include "linux/errno.h"
 #include "asm/atomic.h"
diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c
index dcd814971995..bbf94bf2921e 100644
--- a/arch/um/kernel/irq.c
+++ b/arch/um/kernel/irq.c
@@ -9,7 +9,6 @@
 #include "linux/kernel.h"
 #include "linux/module.h"
 #include "linux/smp.h"
-#include "linux/irq.h"
 #include "linux/kernel_stat.h"
 #include "linux/interrupt.h"
 #include "linux/random.h"
diff --git a/arch/x86_64/kernel/mce.c b/arch/x86_64/kernel/mce.c
index 08203b07f4bd..69541db5ff2c 100644
--- a/arch/x86_64/kernel/mce.c
+++ b/arch/x86_64/kernel/mce.c
@@ -54,9 +54,12 @@ void mce_log(struct mce *mce)
 {
         unsigned next, entry;
         mce->finished = 0;
-        smp_wmb();
+        wmb();
         for (;;) {
                 entry = rcu_dereference(mcelog.next);
+                /* The rmb forces the compiler to reload next in each
+                    iteration */
+                rmb();
                 for (;;) {
                         /* When the buffer fills up discard new entries. Assume
                            that the earlier errors are the more interesting. */
@@ -69,6 +72,7 @@ void mce_log(struct mce *mce)
                                 entry++;
                                 continue;
                         }
+                        break;
                 }
                 smp_rmb();
                 next = entry + 1;
@@ -76,9 +80,9 @@ void mce_log(struct mce *mce)
                         break;
         }
         memcpy(mcelog.entry + entry, mce, sizeof(struct mce));
-        smp_wmb();
+        wmb();
         mcelog.entry[entry].finished = 1;
-        smp_wmb();
+        wmb();
 
         if (!test_and_set_bit(0, &console_logged))
                 notify_user = 1;
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index 238f73e1a834..257f5ba17902 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -831,8 +831,6 @@ static void __init amd_detect_cmp(struct cpuinfo_x86 *c)
 #endif
 }
 
-#define HWCR 0xc0010015
-
 static int __init init_amd(struct cpuinfo_x86 *c)
 {
         int r;
@@ -841,14 +839,18 @@ static int __init init_amd(struct cpuinfo_x86 *c)
 #ifdef CONFIG_SMP
         unsigned long value;
 
-        // Disable TLB flush filter by setting HWCR.FFDIS:
-        // bit 6 of msr C001_0015
-        //
-        // Errata 63 for SH-B3 steppings
-        // Errata 122 for all(?) steppings
-        rdmsrl(HWCR, value);
-        value |= 1 << 6;
-        wrmsrl(HWCR, value);
+        /*
+         * Disable TLB flush filter by setting HWCR.FFDIS on K8
+         * bit 6 of msr C001_0015
+         *
+         * Errata 63 for SH-B3 steppings
+         * Errata 122 for all steppings (F+ have it disabled by default)
+         */
+        if (c->x86 == 15) {
+                rdmsrl(MSR_K8_HWCR, value);
+                value |= 1 << 6;
+                wrmsrl(MSR_K8_HWCR, value);
+        }
 #endif
 
         /* Bit 31 in normal CPUID used for nonstandard 3DNow ID;
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index a85ac18dd21d..9b38674fbf75 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -153,8 +153,10 @@ static irqreturn_t smu_db_intr(int irq, void *arg, struct pt_regs *regs)
         spin_lock_irqsave(&smu->lock, flags);
 
         gpio = pmac_do_feature_call(PMAC_FTR_READ_GPIO, NULL, smu->doorbell);
-        if ((gpio & 7) != 7)
+        if ((gpio & 7) != 7) {
+                spin_unlock_irqrestore(&smu->lock, flags);
                 return IRQ_HANDLED;
+        }
 
         cmd = smu->cmd_cur;
         smu->cmd_cur = NULL;
diff --git a/drivers/mtd/maps/bast-flash.c b/drivers/mtd/maps/bast-flash.c
index 0c45464e3f7b..0ba0ff7d43b9 100644
--- a/drivers/mtd/maps/bast-flash.c
+++ b/drivers/mtd/maps/bast-flash.c
@@ -39,7 +39,6 @@
 #include <linux/mtd/partitions.h>
 
 #include <asm/io.h>
-#include <asm/mach-types.h>
 #include <asm/mach/flash.h>
 
 #include <asm/arch/map.h>
diff --git a/drivers/mtd/maps/ixp2000.c b/drivers/mtd/maps/ixp2000.c
index 3e94b616743d..a9f86c7fbd52 100644
--- a/drivers/mtd/maps/ixp2000.c
+++ b/drivers/mtd/maps/ixp2000.c
@@ -30,7 +30,6 @@
 
 #include <asm/io.h>
 #include <asm/hardware.h>
-#include <asm/mach-types.h>
 #include <asm/mach/flash.h>
 
 #include <linux/reboot.h>
diff --git a/drivers/mtd/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c
index bbb0e6e569a6..3fcc32884074 100644
--- a/drivers/mtd/maps/ixp4xx.c
+++ b/drivers/mtd/maps/ixp4xx.c
@@ -26,7 +26,6 @@
 #include <linux/ioport.h>
 #include <linux/device.h>
 #include <asm/io.h>
-#include <asm/mach-types.h>
 #include <asm/mach/flash.h>
 
 #include <linux/reboot.h>
diff --git a/drivers/mtd/maps/omap_nor.c b/drivers/mtd/maps/omap_nor.c
index 8cc71409a328..b17bca657daf 100644
--- a/drivers/mtd/maps/omap_nor.c
+++ b/drivers/mtd/maps/omap_nor.c
@@ -42,7 +42,6 @@
 
 #include <asm/io.h>
 #include <asm/hardware.h>
-#include <asm/mach-types.h>
 #include <asm/mach/flash.h>
 #include <asm/arch/tc.h>
 
diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c
index 52385705da09..8dcaa357b4bb 100644
--- a/drivers/mtd/maps/sa1100-flash.c
+++ b/drivers/mtd/maps/sa1100-flash.c
@@ -21,7 +21,6 @@
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/concat.h>
 
-#include <asm/mach-types.h>
 #include <asm/io.h>
 #include <asm/sizes.h>
 #include <asm/mach/flash.h>
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index 891e3a1b9110..b47ebcb31e0f 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -58,7 +58,6 @@
 #include <linux/mtd/partitions.h>
 
 #include <asm/io.h>
-#include <asm/mach-types.h>
 #include <asm/hardware/clock.h>
 
 #include <asm/arch/regs-nand.h>
diff --git a/drivers/net/bmac.c b/drivers/net/bmac.c
index 8dc657fc8afb..60dba4a1ca5c 100644
--- a/drivers/net/bmac.c
+++ b/drivers/net/bmac.c
@@ -218,7 +218,7 @@ void bmwrite(struct net_device *dev, unsigned long reg_offset, unsigned data )
 
 
 static inline
-volatile unsigned short bmread(struct net_device *dev, unsigned long reg_offset )
+unsigned short bmread(struct net_device *dev, unsigned long reg_offset )
 {
         return in_le16((void __iomem *)dev->base_addr + reg_offset);
 }
diff --git a/drivers/pcmcia/omap_cf.c b/drivers/pcmcia/omap_cf.c
index 08d1c9288264..94be9e51654e 100644
--- a/drivers/pcmcia/omap_cf.c
+++ b/drivers/pcmcia/omap_cf.c
@@ -22,7 +22,6 @@
 
 #include <asm/hardware.h>
 #include <asm/io.h>
-#include <asm/mach-types.h>
 #include <asm/sizes.h>
 
 #include <asm/arch/mux.h>
diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c
index 1195e6a0901a..50d7870d92bb 100644
--- a/drivers/serial/s3c2410.c
+++ b/drivers/serial/s3c2410.c
@@ -82,8 +82,6 @@
 #include <asm/arch/regs-serial.h>
 #include <asm/arch/regs-gpio.h>
 
-#include <asm/mach-types.h>
-
 /* structures */
 
 struct s3c24xx_uart_info {
diff --git a/drivers/usb/host/ohci-lh7a404.c b/drivers/usb/host/ohci-lh7a404.c
index 817620d73841..859aca7be753 100644
--- a/drivers/usb/host/ohci-lh7a404.c
+++ b/drivers/usb/host/ohci-lh7a404.c
@@ -17,8 +17,6 @@
  */
 
 #include <asm/hardware.h>
-#include <asm/mach-types.h>
-#include <asm/arch/hardware.h>
 
 
 extern int usb_disabled(void);
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index 5cde76faab93..d8f3ba7ad52e 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -18,7 +18,6 @@
 #include <asm/io.h>
 #include <asm/mach-types.h>
 
-#include <asm/arch/hardware.h>
 #include <asm/arch/mux.h>
 #include <asm/arch/irqs.h>
 #include <asm/arch/gpio.h>
diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index 3d9bcf78a9a4..da7d5478f74d 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -20,7 +20,6 @@
 */
 
 #include <asm/hardware.h>
-#include <asm/mach-types.h>
 #include <asm/hardware/clock.h>
 #include <asm/arch/usb-control.h>
 
diff --git a/drivers/video/backlight/corgi_bl.c b/drivers/video/backlight/corgi_bl.c
index 630f2dfa9699..3c72c627e65e 100644
--- a/drivers/video/backlight/corgi_bl.c
+++ b/drivers/video/backlight/corgi_bl.c
@@ -19,7 +19,6 @@
 #include <linux/fb.h>
 #include <linux/backlight.h>
 
-#include <asm/mach-types.h>
 #include <asm/arch/sharpsl.h>
 
 #define CORGI_DEFAULT_INTENSITY         0x1f
diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c
index 6c2244cf0e74..1d54d3d6960b 100644
--- a/drivers/video/imxfb.c
+++ b/drivers/video/imxfb.c
@@ -36,7 +36,6 @@
 
 #include <asm/hardware.h>
 #include <asm/io.h>
-#include <asm/mach-types.h>
 #include <asm/uaccess.h>
 #include <asm/arch/imxfb.h>
 
diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index 34d4dcc0320a..194eed0a238c 100644
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -260,9 +260,9 @@ static int pxafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
         }
 
 #ifdef CONFIG_CPU_FREQ
-        DPRINTK("dma period = %d ps, clock = %d kHz\n",
-                pxafb_display_dma_period(var),
-                get_clk_frequency_khz(0));
+        pr_debug("pxafb: dma period = %d ps, clock = %d kHz\n",
+                 pxafb_display_dma_period(var),
+                 get_clk_frequency_khz(0));
 #endif
 
         return 0;
@@ -270,7 +270,7 @@ static int pxafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 
 static inline void pxafb_set_truecolor(u_int is_true_color)
 {
-        DPRINTK("true_color = %d\n", is_true_color);
+        pr_debug("pxafb: true_color = %d\n", is_true_color);
         // do your machine-specific setup if needed
 }
 
@@ -284,7 +284,7 @@ static int pxafb_set_par(struct fb_info *info)
         struct fb_var_screeninfo *var = &info->var;
         unsigned long palette_mem_size;
 
-        DPRINTK("set_par\n");
+        pr_debug("pxafb: set_par\n");
 
         if (var->bits_per_pixel == 16)
                 fbi->fb.fix.visual = FB_VISUAL_TRUECOLOR;
@@ -308,7 +308,7 @@ static int pxafb_set_par(struct fb_info *info)
 
         palette_mem_size = fbi->palette_size * sizeof(u16);
 
-        DPRINTK("palette_mem_size = 0x%08lx\n", (u_long) palette_mem_size);
+        pr_debug("pxafb: palette_mem_size = 0x%08lx\n", palette_mem_size);
 
         fbi->palette_cpu = (u16 *)(fbi->map_cpu + PAGE_SIZE - palette_mem_size);
         fbi->palette_dma = fbi->map_dma + PAGE_SIZE - palette_mem_size;
@@ -369,7 +369,7 @@ static int pxafb_blank(int blank, struct fb_info *info)
         struct pxafb_info *fbi = (struct pxafb_info *)info;
         int i;
 
-        DPRINTK("pxafb_blank: blank=%d\n", blank);
+        pr_debug("pxafb: blank=%d\n", blank);
 
         switch (blank) {
         case FB_BLANK_POWERDOWN:
@@ -508,15 +508,15 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, struct pxafb_info *
         u_long flags;
         u_int lines_per_panel, pcd = get_pcd(var->pixclock);
 
-        DPRINTK("Configuring PXA LCD\n");
+        pr_debug("pxafb: Configuring PXA LCD\n");
 
-        DPRINTK("var: xres=%d hslen=%d lm=%d rm=%d\n",
-                var->xres, var->hsync_len,
-                var->left_margin, var->right_margin);
-        DPRINTK("var: yres=%d vslen=%d um=%d bm=%d\n",
-                var->yres, var->vsync_len,
-                var->upper_margin, var->lower_margin);
-        DPRINTK("var: pixclock=%d pcd=%d\n", var->pixclock, pcd);
+        pr_debug("var: xres=%d hslen=%d lm=%d rm=%d\n",
+                 var->xres, var->hsync_len,
+                 var->left_margin, var->right_margin);
+        pr_debug("var: yres=%d vslen=%d um=%d bm=%d\n",
+                 var->yres, var->vsync_len,
+                 var->upper_margin, var->lower_margin);
+        pr_debug("var: pixclock=%d pcd=%d\n", var->pixclock, pcd);
 
 #if DEBUG_VAR
         if (var->xres < 16        || var->xres > 1024)
@@ -589,10 +589,10 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, struct pxafb_info *
         if (pcd)
                 new_regs.lccr3 |= LCCR3_PixClkDiv(pcd);
 
-        DPRINTK("nlccr0 = 0x%08x\n", new_regs.lccr0);
-        DPRINTK("nlccr1 = 0x%08x\n", new_regs.lccr1);
-        DPRINTK("nlccr2 = 0x%08x\n", new_regs.lccr2);
-        DPRINTK("nlccr3 = 0x%08x\n", new_regs.lccr3);
+        pr_debug("nlccr0 = 0x%08x\n", new_regs.lccr0);
+        pr_debug("nlccr1 = 0x%08x\n", new_regs.lccr1);
+        pr_debug("nlccr2 = 0x%08x\n", new_regs.lccr2);
+        pr_debug("nlccr3 = 0x%08x\n", new_regs.lccr3);
 
         /* Update shadow copy atomically */
         local_irq_save(flags);
@@ -637,24 +637,24 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, struct pxafb_info *
         }
 
 #if 0
-        DPRINTK("fbi->dmadesc_fblow_cpu = 0x%p\n", fbi->dmadesc_fblow_cpu);
-        DPRINTK("fbi->dmadesc_fbhigh_cpu = 0x%p\n", fbi->dmadesc_fbhigh_cpu);
-        DPRINTK("fbi->dmadesc_palette_cpu = 0x%p\n", fbi->dmadesc_palette_cpu);
-        DPRINTK("fbi->dmadesc_fblow_dma = 0x%x\n", fbi->dmadesc_fblow_dma);
-        DPRINTK("fbi->dmadesc_fbhigh_dma = 0x%x\n", fbi->dmadesc_fbhigh_dma);
-        DPRINTK("fbi->dmadesc_palette_dma = 0x%x\n", fbi->dmadesc_palette_dma);
-
-        DPRINTK("fbi->dmadesc_fblow_cpu->fdadr = 0x%x\n", fbi->dmadesc_fblow_cpu->fdadr);
-        DPRINTK("fbi->dmadesc_fbhigh_cpu->fdadr = 0x%x\n", fbi->dmadesc_fbhigh_cpu->fdadr);
-        DPRINTK("fbi->dmadesc_palette_cpu->fdadr = 0x%x\n", fbi->dmadesc_palette_cpu->fdadr);
-
-        DPRINTK("fbi->dmadesc_fblow_cpu->fsadr = 0x%x\n", fbi->dmadesc_fblow_cpu->fsadr);
-        DPRINTK("fbi->dmadesc_fbhigh_cpu->fsadr = 0x%x\n", fbi->dmadesc_fbhigh_cpu->fsadr);
-        DPRINTK("fbi->dmadesc_palette_cpu->fsadr = 0x%x\n", fbi->dmadesc_palette_cpu->fsadr);
-
-        DPRINTK("fbi->dmadesc_fblow_cpu->ldcmd = 0x%x\n", fbi->dmadesc_fblow_cpu->ldcmd);
-        DPRINTK("fbi->dmadesc_fbhigh_cpu->ldcmd = 0x%x\n", fbi->dmadesc_fbhigh_cpu->ldcmd);
-        DPRINTK("fbi->dmadesc_palette_cpu->ldcmd = 0x%x\n", fbi->dmadesc_palette_cpu->ldcmd);
+        pr_debug("fbi->dmadesc_fblow_cpu = 0x%p\n", fbi->dmadesc_fblow_cpu);
+        pr_debug("fbi->dmadesc_fbhigh_cpu = 0x%p\n", fbi->dmadesc_fbhigh_cpu);
+        pr_debug("fbi->dmadesc_palette_cpu = 0x%p\n", fbi->dmadesc_palette_cpu);
+        pr_debug("fbi->dmadesc_fblow_dma = 0x%x\n", fbi->dmadesc_fblow_dma);
+        pr_debug("fbi->dmadesc_fbhigh_dma = 0x%x\n", fbi->dmadesc_fbhigh_dma);
+        pr_debug("fbi->dmadesc_palette_dma = 0x%x\n", fbi->dmadesc_palette_dma);
+
+        pr_debug("fbi->dmadesc_fblow_cpu->fdadr = 0x%x\n", fbi->dmadesc_fblow_cpu->fdadr);
+        pr_debug("fbi->dmadesc_fbhigh_cpu->fdadr = 0x%x\n", fbi->dmadesc_fbhigh_cpu->fdadr);
+        pr_debug("fbi->dmadesc_palette_cpu->fdadr = 0x%x\n", fbi->dmadesc_palette_cpu->fdadr);
+
+        pr_debug("fbi->dmadesc_fblow_cpu->fsadr = 0x%x\n", fbi->dmadesc_fblow_cpu->fsadr);
+        pr_debug("fbi->dmadesc_fbhigh_cpu->fsadr = 0x%x\n", fbi->dmadesc_fbhigh_cpu->fsadr);
+        pr_debug("fbi->dmadesc_palette_cpu->fsadr = 0x%x\n", fbi->dmadesc_palette_cpu->fsadr);
+
+        pr_debug("fbi->dmadesc_fblow_cpu->ldcmd = 0x%x\n", fbi->dmadesc_fblow_cpu->ldcmd);
+        pr_debug("fbi->dmadesc_fbhigh_cpu->ldcmd = 0x%x\n", fbi->dmadesc_fbhigh_cpu->ldcmd);
+        pr_debug("fbi->dmadesc_palette_cpu->ldcmd = 0x%x\n", fbi->dmadesc_palette_cpu->ldcmd);
 #endif
 
         fbi->reg_lccr0 = new_regs.lccr0;
@@ -684,7 +684,7 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, struct pxafb_info *
  */
 static inline void __pxafb_backlight_power(struct pxafb_info *fbi, int on)
 {
-        DPRINTK("backlight o%s\n", on ? "n" : "ff");
+        pr_debug("pxafb: backlight o%s\n", on ? "n" : "ff");
 
         if (pxafb_backlight_power)
                 pxafb_backlight_power(on);
@@ -692,7 +692,7 @@ static inline void __pxafb_backlight_power(struct pxafb_info *fbi, int on)
 
 static inline void __pxafb_lcd_power(struct pxafb_info *fbi, int on)
 {
-        DPRINTK("LCD power o%s\n", on ? "n" : "ff");
+        pr_debug("pxafb: LCD power o%s\n", on ? "n" : "ff");
 
         if (pxafb_lcd_power)
                 pxafb_lcd_power(on);
@@ -740,13 +740,13 @@ static void pxafb_setup_gpio(struct pxafb_info *fbi)
 
 static void pxafb_enable_controller(struct pxafb_info *fbi)
 {
-        DPRINTK("Enabling LCD controller\n");
-        DPRINTK("fdadr0 0x%08x\n", (unsigned int) fbi->fdadr0);
-        DPRINTK("fdadr1 0x%08x\n", (unsigned int) fbi->fdadr1);
-        DPRINTK("reg_lccr0 0x%08x\n", (unsigned int) fbi->reg_lccr0);
-        DPRINTK("reg_lccr1 0x%08x\n", (unsigned int) fbi->reg_lccr1);
-        DPRINTK("reg_lccr2 0x%08x\n", (unsigned int) fbi->reg_lccr2);
-        DPRINTK("reg_lccr3 0x%08x\n", (unsigned int) fbi->reg_lccr3);
+        pr_debug("pxafb: Enabling LCD controller\n");
+        pr_debug("fdadr0 0x%08x\n", (unsigned int) fbi->fdadr0);
+        pr_debug("fdadr1 0x%08x\n", (unsigned int) fbi->fdadr1);
+        pr_debug("reg_lccr0 0x%08x\n", (unsigned int) fbi->reg_lccr0);
+        pr_debug("reg_lccr1 0x%08x\n", (unsigned int) fbi->reg_lccr1);
+        pr_debug("reg_lccr2 0x%08x\n", (unsigned int) fbi->reg_lccr2);
+        pr_debug("reg_lccr3 0x%08x\n", (unsigned int) fbi->reg_lccr3);
 
         /* enable LCD controller clock */
         pxa_set_cken(CKEN16_LCD, 1);
@@ -761,19 +761,19 @@ static void pxafb_enable_controller(struct pxafb_info *fbi)
         FDADR1 = fbi->fdadr1;
         LCCR0 |= LCCR0_ENB;
 
-        DPRINTK("FDADR0 0x%08x\n", (unsigned int) FDADR0);
-        DPRINTK("FDADR1 0x%08x\n", (unsigned int) FDADR1);
-        DPRINTK("LCCR0 0x%08x\n", (unsigned int) LCCR0);
-        DPRINTK("LCCR1 0x%08x\n", (unsigned int) LCCR1);
-        DPRINTK("LCCR2 0x%08x\n", (unsigned int) LCCR2);
-        DPRINTK("LCCR3 0x%08x\n", (unsigned int) LCCR3);
+        pr_debug("FDADR0 0x%08x\n", (unsigned int) FDADR0);
+        pr_debug("FDADR1 0x%08x\n", (unsigned int) FDADR1);
+        pr_debug("LCCR0 0x%08x\n", (unsigned int) LCCR0);
+        pr_debug("LCCR1 0x%08x\n", (unsigned int) LCCR1);
+        pr_debug("LCCR2 0x%08x\n", (unsigned int) LCCR2);
+        pr_debug("LCCR3 0x%08x\n", (unsigned int) LCCR3);
 }
 
 static void pxafb_disable_controller(struct pxafb_info *fbi)
 {
         DECLARE_WAITQUEUE(wait, current);
 
-        DPRINTK("Disabling LCD controller\n");
+        pr_debug("pxafb: disabling LCD controller\n");
 
         set_current_state(TASK_UNINTERRUPTIBLE);
         add_wait_queue(&fbi->ctrlr_wait, &wait);
@@ -1039,7 +1039,7 @@ static int __init pxafb_map_video_memory(struct pxafb_info *fbi)
                 fbi->palette_size = fbi->fb.var.bits_per_pixel == 8 ? 256 : 16;
 
                 palette_mem_size = fbi->palette_size * sizeof(u16);
-                DPRINTK("palette_mem_size = 0x%08lx\n", (u_long) palette_mem_size);
+                pr_debug("pxafb: palette_mem_size = 0x%08lx\n", palette_mem_size);
 
                 fbi->palette_cpu = (u16 *)(fbi->map_cpu + PAGE_SIZE - palette_mem_size);
                 fbi->palette_dma = fbi->map_dma + PAGE_SIZE - palette_mem_size;
diff --git a/drivers/video/pxafb.h b/drivers/video/pxafb.h
index 22c00be786a8..47f41f70db7a 100644
--- a/drivers/video/pxafb.h
+++ b/drivers/video/pxafb.h
@@ -114,15 +114,6 @@ struct pxafb_info {
 #define PXA_NAME        "PXA"
 
 /*
- *  Debug macros
- */
-#if DEBUG
-#  define DPRINTK(fmt, args...) printk("%s: " fmt, __FUNCTION__ , ## args)
-#else
-#  define DPRINTK(fmt, args...)
-#endif
-
-/*
  * Minimum X and Y resolutions
  */
 #define MIN_XRES        64
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index 0957f4da91d4..82c5b0084079 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -129,7 +129,7 @@ static struct super_block *v9fs_get_sb(struct file_system_type
 
         if ((newfid = v9fs_session_init(v9ses, dev_name, data)) < 0) {
                 dprintk(DEBUG_ERROR, "problem initiating session\n");
-                return newfid;
+                return ERR_PTR(newfid);
         }
 
         sb = sget(fs_type, NULL, v9fs_set_super, v9ses);
diff --git a/fs/read_write.c b/fs/read_write.c
index b60324aaa2b6..a091ee4f430d 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -499,6 +499,9 @@ static ssize_t do_readv_writev(int type, struct file *file,
         ret = rw_verify_area(type, file, pos, tot_len);
         if (ret)
                 goto out;
+        ret = security_file_permission(file, type == READ ? MAY_READ : MAY_WRITE);
+        if (ret)
+                goto out;
 
         fnv = NULL;
         if (type == READ) {
diff --git a/include/asm-arm/elf.h b/include/asm-arm/elf.h
index a1696ba238d3..7da97a937548 100644
--- a/include/asm-arm/elf.h
+++ b/include/asm-arm/elf.h
@@ -124,6 +124,8 @@ do { \
         if (((ex).e_flags & EF_ARM_EABI_MASK) || \
             ((ex).e_flags & EF_ARM_SOFT_FLOAT)) \
                 set_thread_flag(TIF_USING_IWMMXT); \
+        else \
+                clear_thread_flag(TIF_USING_IWMMXT); \
 } while (0)
 
 #endif
diff --git a/include/asm-ppc/io.h b/include/asm-ppc/io.h
index 7eb7cf6360bd..94d83998a759 100644
--- a/include/asm-ppc/io.h
+++ b/include/asm-ppc/io.h
@@ -56,7 +56,7 @@ extern unsigned long pci_dram_offset;
  * is actually performed (i.e. the data has come back) before we start
  * executing any following instructions.
  */
-extern inline int in_8(volatile unsigned char __iomem *addr)
+extern inline int in_8(const volatile unsigned char __iomem *addr)
 {
         int ret;
 
@@ -72,7 +72,7 @@ extern inline void out_8(volatile unsigned char __iomem *addr, int val)
         __asm__ __volatile__("stb%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
 }
 
-extern inline int in_le16(volatile unsigned short __iomem *addr)
+extern inline int in_le16(const volatile unsigned short __iomem *addr)
 {
         int ret;
 
@@ -83,7 +83,7 @@ extern inline int in_le16(volatile unsigned short __iomem *addr)
         return ret;
 }
 
-extern inline int in_be16(volatile unsigned short __iomem *addr)
+extern inline int in_be16(const volatile unsigned short __iomem *addr)
 {
         int ret;
 
@@ -104,7 +104,7 @@ extern inline void out_be16(volatile unsigned short __iomem *addr, int val)
         __asm__ __volatile__("sth%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
 }
 
-extern inline unsigned in_le32(volatile unsigned __iomem *addr)
+extern inline unsigned in_le32(const volatile unsigned __iomem *addr)
 {
         unsigned ret;
 
@@ -115,7 +115,7 @@ extern inline unsigned in_le32(volatile unsigned __iomem *addr)
         return ret;
 }
 
-extern inline unsigned in_be32(volatile unsigned __iomem *addr)
+extern inline unsigned in_be32(const volatile unsigned __iomem *addr)
 {
         unsigned ret;
 
@@ -139,7 +139,7 @@ extern inline void out_be32(volatile unsigned __iomem *addr, int val)
 #define readb(addr) in_8((volatile u8 *)(addr))
 #define writeb(b,addr) out_8((volatile u8 *)(addr), (b))
 #else
-static inline __u8 readb(volatile void __iomem *addr)
+static inline __u8 readb(const volatile void __iomem *addr)
 {
         return in_8(addr);
 }
@@ -150,11 +150,11 @@ static inline void writeb(__u8 b, volatile void __iomem *addr)
 #endif
 
 #if defined(CONFIG_APUS)
-static inline __u16 readw(volatile void __iomem *addr)
+static inline __u16 readw(const volatile void __iomem *addr)
 {
         return *(__force volatile __u16 *)(addr);
 }
-static inline __u32 readl(volatile void __iomem *addr)
+static inline __u32 readl(const volatile void __iomem *addr)
 {
         return *(__force volatile __u32 *)(addr);
 }
@@ -173,11 +173,11 @@ static inline void writel(__u32 b, volatile void __iomem *addr)
 #define writew(b,addr) out_le16((volatile u16 *)(addr),(b))
 #define writel(b,addr) out_le32((volatile u32 *)(addr),(b))
 #else
-static inline __u16 readw(volatile void __iomem *addr)
+static inline __u16 readw(const volatile void __iomem *addr)
 {
         return in_le16(addr);
 }
-static inline __u32 readl(volatile void __iomem *addr)
+static inline __u32 readl(const volatile void __iomem *addr)
 {
         return in_le32(addr);
 }
diff --git a/include/asm-um/uaccess.h b/include/asm-um/uaccess.h
index 801710d00a40..2ee028b8de9d 100644
--- a/include/asm-um/uaccess.h
+++ b/include/asm-um/uaccess.h
@@ -44,7 +44,7 @@
         const __typeof__(ptr) __private_ptr = ptr; \
         __typeof__(*(__private_ptr)) __private_val; \
         int __private_ret = -EFAULT; \
-        (x) = 0; \
+        (x) = (__typeof__(*(__private_ptr)))0; \
         if (__copy_from_user(&__private_val, (__private_ptr), \
             sizeof(*(__private_ptr))) == 0) {\
                 (x) = (__typeof__(*(__private_ptr))) __private_val; \
diff --git a/include/asm-x86_64/msr.h b/include/asm-x86_64/msr.h
index 4d727f3f5550..5a7fe3c6c3d8 100644
--- a/include/asm-x86_64/msr.h
+++ b/include/asm-x86_64/msr.h
@@ -234,6 +234,7 @@ static inline unsigned int cpuid_edx(unsigned int op)
 #define MSR_K8_TOP_MEM1            0xC001001A
 #define MSR_K8_TOP_MEM2            0xC001001D
 #define MSR_K8_SYSCFG              0xC0010010
+#define MSR_K8_HWCR                0xC0010015
 
 /* K6 MSRs */
 #define MSR_K6_EFER                     0xC0000080
diff --git a/include/linux/sched.h b/include/linux/sched.h
index afe6c61f13e5..c3ba31f210a9 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -107,14 +107,26 @@ extern unsigned long nr_iowait(void);
 
 #include <asm/processor.h>
 
+/*
+ * Task state bitmask. NOTE! These bits are also
+ * encoded in fs/proc/array.c: get_task_state().
+ *
+ * We have two separate sets of flags: task->state
+ * is about runnability, while task->exit_state are
+ * about the task exiting. Confusing, but this way
+ * modifying one set can't modify the other one by
+ * mistake.
+ */
 #define TASK_RUNNING            0
 #define TASK_INTERRUPTIBLE      1
 #define TASK_UNINTERRUPTIBLE    2
-#define TASK_NONINTERACTIVE     4
-#define TASK_STOPPED            8
-#define TASK_TRACED             16
-#define EXIT_ZOMBIE             32
-#define EXIT_DEAD               64
+#define TASK_STOPPED            4
+#define TASK_TRACED             8
+/* in tsk->exit_state */
+#define EXIT_ZOMBIE             16
+#define EXIT_DEAD               32
+/* in tsk->state again */
+#define TASK_NONINTERACTIVE     64
 
 #define __set_task_state(tsk, state_value)              \
         do { (tsk)->state = (state_value); } while (0)
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 6a6e87b2f2fd..45a5719a0104 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -968,8 +968,6 @@ static ssize_t cpuset_common_file_read(struct file *file, char __user *buf,
         char *page;
         ssize_t retval = 0;
         char *s;
-        char *start;
-        ssize_t n;
 
         if (!(page = (char *)__get_free_page(GFP_KERNEL)))
                 return -ENOMEM;
@@ -999,15 +997,7 @@ static ssize_t cpuset_common_file_read(struct file *file, char __user *buf,
         *s++ = '\n';
         *s = '\0';
 
-        start = page + *ppos;
-        n = s - start;
-
-        /* Do nothing if *ppos is at the eof or beyond the eof. */
-        if (n <= 0)
-                goto out;
-
-        retval = n - copy_to_user(buf, start, min(n, nbytes));
-        *ppos += retval;
+        retval = simple_read_from_buffer(buf, nbytes, ppos, page, s - page);
 out:
         free_page((unsigned long)page);
         return retval;
diff --git a/kernel/signal.c b/kernel/signal.c
index 5a274705ba19..619b027e92b5 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1763,7 +1763,8 @@ do_signal_stop(int signr)
                                  * stop is always done with the siglock held,
                                  * so this check has no races.
                                  */
-                                if (t->state < TASK_STOPPED) {
+                                if (!t->exit_state &&
+                                    !(t->state & (TASK_STOPPED|TASK_TRACED))) {
                                         stop_count++;
                                         signal_wake_up(t, 0);
                                 }