diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c
index d749907..c02dc81 100644
--- a/arch/arm/common/gic.c
+++ b/arch/arm/common/gic.c
@@ -68,6 +68,7 @@
 	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 @@
 	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 a7bd857..e8053d1 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 e6399b0..7923640 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 bda7394..fdeeef4 100644
--- a/arch/arm/mach-iop3xx/common.c
+++ b/arch/arm/mach-iop3xx/common.c
@@ -27,7 +27,6 @@
 /*
  * 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 0039793..d67ac0e 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 8eddfac..3c1f0eb 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 b01042f..55992ab 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 1580c7e..bb3e9e5 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 ee8c333..129eb49 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 084afcd..2feaf75 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 74bd2fd..f34797a 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 0788fb2..522205a 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 2a7fee2..5fd8c9f 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 c5efcd0..c02ef7c 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 a45aaa1..d0660a8 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 f021fd8..5098b50 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 58c1330..a30e045 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 d1565e8..b80d57d 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 85c10a7..72966d9 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 @@
 	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 b0208c9..c9a0398 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 @@
 	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 6cb20ae..02bcc6c 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 409aac2..fd894bb 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 98f1c76..14a836d 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 73aeaf5..4c1ddf2b 100644
--- a/arch/i386/kernel/cpu/amd.c
+++ b/arch/i386/kernel/cpu/amd.c
@@ -28,6 +28,22 @@
 	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 f33a7bc..507eb9d 100644
--- a/arch/ppc64/kernel/bpa_iommu.c
+++ b/arch/ppc64/kernel/bpa_iommu.c
@@ -99,7 +99,11 @@
 		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 c41efd2..189839e 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 dcd8149..bbf94bf 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 08203b0..69541db 100644
--- a/arch/x86_64/kernel/mce.c
+++ b/arch/x86_64/kernel/mce.c
@@ -54,9 +54,12 @@
 {
 	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 @@
 				entry++;
 				continue;
 			}
+			break;
 		}
 		smp_rmb();
 		next = entry + 1;
@@ -76,9 +80,9 @@
 			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 238f73e..257f5ba 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -831,8 +831,6 @@
 #endif
 }
 
-#define HWCR 0xc0010015
-
 static int __init init_amd(struct cpuinfo_x86 *c)
 {
 	int r;
@@ -841,14 +839,18 @@
 #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 a85ac18..9b38674 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -153,8 +153,10 @@
 	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 0c45464..0ba0ff7 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 3e94b61..a9f86c7 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 bbb0e6e..3fcc328 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 8cc7140..b17bca6 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 5238570..8dcaa35 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 891e3a1..b47ebcb 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 8dc657f..60dba4a 100644
--- a/drivers/net/bmac.c
+++ b/drivers/net/bmac.c
@@ -218,7 +218,7 @@
 
 
 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 08d1c92..94be9e5 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 1195e6a..50d7870 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 817620d..859aca7b 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 5cde76f..d8f3ba7 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 3d9bcf7..da7d547 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 630f2df..3c72c62 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 6c2244c..1d54d3d6 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 34d4dcc..194eed0 100644
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -260,9 +260,9 @@
 	}
 
 #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 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 @@
 	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 @@
 
 	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 @@
 	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 @@
 	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 @@
 	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 @@
 	}
 
 #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);
+	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);
 
-	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);
+	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);
 
-	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);
+	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);
 
-	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->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 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_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_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 @@
 	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 @@
 		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 22c00be..47f41f7 100644
--- a/drivers/video/pxafb.h
+++ b/drivers/video/pxafb.h
@@ -114,15 +114,6 @@
 #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 0957f4d..82c5b00 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -129,7 +129,7 @@
 
 	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 b60324a..a091ee4 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -499,6 +499,9 @@
 	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 a1696ba..7da97a9 100644
--- a/include/asm-arm/elf.h
+++ b/include/asm-arm/elf.h
@@ -124,6 +124,8 @@
 	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 7eb7cf6..94d8399 100644
--- a/include/asm-ppc/io.h
+++ b/include/asm-ppc/io.h
@@ -56,7 +56,7 @@
  * 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 @@
 	__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 @@
 	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 @@
 	__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 @@
 	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 @@
 #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 @@
 #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 @@
 #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 801710d..2ee028b 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 4d727f3..5a7fe3c 100644
--- a/include/asm-x86_64/msr.h
+++ b/include/asm-x86_64/msr.h
@@ -234,6 +234,7 @@
 #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 afe6c61..c3ba31f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -107,14 +107,26 @@
 
 #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 6a6e87b..45a5719 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -968,8 +968,6 @@
 	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 @@
 	*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 5a27470..619b027 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1763,7 +1763,8 @@
 				 * 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);
 				}