Merge bk://linux-mtd.bkbits.net/mtd-2.6

into ppc970.osdl.org:/home/torvalds/v2.6/linux

Documentation/crypto/api-intro.txt

@@ -215,7 +215,6 @@ AES algorithm contributors:
   Herbert Valerio Riedel
   Kyle McMartin
   Adam J. Richter
-  Fruhwirth Clemens (i586)
 
 CAST5 algorithm contributors:
   Kartikey Mahendra Bhatt (original developers unknown, FSF copyright).

arch/arm/boot/compressed/head-clps7500.S

@@ -34,7 +34,7 @@
 		mov	r0, #0x30
 		mcr	p15, 0, r0, c1, c0, 0
 		mov	r0, #0x13
-		msr	cpsr, r0
+		msr	cpsr_cxsf, r0
 		mov	r12, #0x03000000	@ point to LEDs
 		orr	r12, r12, #0x00020000
 		orr	r12, r12, #0xba00
@@ -71,7 +71,7 @@
 		/* Ensure all interrupts are off and MMU disabled */
 		mrs	r0, cpsr
 		orr	r0, r0, #0xc0
-		msr	cpsr, r0
+		msr	cpsr_cxsf, r0
 
 		adr	lr, 1b
 		orr	lr, lr, #0x10000000

arch/arm/kernel/entry-armv.S

@@ -952,7 +952,7 @@ __dabt_svc:	sub	sp, sp, #S_FRAME_SIZE
 		bl	do_DataAbort
 		disable_irq r0
 		ldr	r0, [sp, #S_PSR]
-		msr	spsr, r0
+		msr	spsr_cxsf, r0
 		ldmia	sp, {r0 - pc}^			@ load r0 - pc, cpsr
 
 		.align	5
@@ -988,7 +988,7 @@ preempt_return:
 		strne	r0, [r0, -r0]			@ bug()
 #endif
 		ldr	r0, [sp, #S_PSR]		@ irqs are already disabled
-		msr	spsr, r0
+		msr	spsr_cxsf, r0
 		ldmia	sp, {r0 - pc}^			@ load r0 - pc, cpsr
 
 		.ltorg
@@ -1031,7 +1031,7 @@ __und_svc:	sub	sp, sp, #S_FRAME_SIZE
 
 1:		disable_irq r0
 		ldr	lr, [sp, #S_PSR]		@ Get SVC cpsr
-		msr	spsr, lr
+		msr	spsr_cxsf, lr
 		ldmia	sp, {r0 - pc}^			@ Restore SVC registers
 
 		.align	5
@@ -1052,7 +1052,7 @@ __pabt_svc:	sub	sp, sp, #S_FRAME_SIZE
 		bl	do_PrefetchAbort		@ call abort handler
 		disable_irq r0
 		ldr	r0, [sp, #S_PSR]
-		msr	spsr, r0
+		msr	spsr_cxsf, r0
 		ldmia	sp, {r0 - pc}^			@ load r0 - pc, cpsr
 
 		.align	5
@@ -1303,7 +1303,7 @@ vector_IRQ:	@
 		mrs	r13, cpsr
 		bic	r13, r13, #MODE_MASK
 		orr	r13, r13, #MODE_SVC
-		msr	spsr, r13			@ switch to SVC_32 mode
+		msr	spsr_cxsf, r13			@ switch to SVC_32 mode
 
 		and	lr, lr, #15
 		ldr	lr, [pc, lr, lsl #2]
@@ -1346,7 +1346,7 @@ vector_data:	@
 		mrs	r13, cpsr
 		bic	r13, r13, #MODE_MASK
 		orr	r13, r13, #MODE_SVC
-		msr	spsr, r13			@ switch to SVC_32 mode
+		msr	spsr_cxsf, r13			@ switch to SVC_32 mode
 
 		and	lr, lr, #15
 		ldr	lr, [pc, lr, lsl #2]
@@ -1390,7 +1390,7 @@ vector_prefetch:
 		mrs	r13, cpsr
 		bic	r13, r13, #MODE_MASK
 		orr	r13, r13, #MODE_SVC
-		msr	spsr, r13			@ switch to SVC_32 mode
+		msr	spsr_cxsf, r13			@ switch to SVC_32 mode
 
 		ands	lr, lr, #15
 		ldr	lr, [pc, lr, lsl #2]
@@ -1433,7 +1433,7 @@ vector_undefinstr:
 		mrs	r13, cpsr
 		bic	r13, r13, #MODE_MASK
 		orr	r13, r13, #MODE_SVC
-		msr	spsr, r13			@ switch to SVC_32 mode
+		msr	spsr_cxsf, r13			@ switch to SVC_32 mode
 
 		and	lr, lr, #15
 		ldr	lr, [pc, lr, lsl #2]

arch/arm/kernel/entry-common.S

@@ -102,7 +102,7 @@ ENTRY(ret_from_fork)
 	ldr	r0, [sp, #S_PSR]		@ Get calling cpsr
 	sub	lr, lr, #4
 	str	lr, [r8]
-	msr	spsr, r0
+	msr	spsr_cxsf, r0
 	ldmia	sp, {r0 - lr}^			@ Get calling r0 - lr
 	mov	r0, r0
 	ldr	lr, [sp, #S_PC]			@ Get PC

arch/arm/kernel/entry-header.S

@@ -99,7 +99,7 @@
 	ldr	r1, [sp, #S_PSR]		@ Get calling cpsr
 	disable_irq ip				@ disable IRQs
 	ldr	lr, [sp, #S_PC]!		@ Get PC
-	msr	spsr, r1			@ save in spsr_svc
+	msr	spsr_cxsf, r1			@ save in spsr_svc
 	ldmdb	sp, {r0 - lr}^			@ Get calling r0 - lr
 	mov	r0, r0
 	add	sp, sp, #S_FRAME_SIZE - S_PC
@@ -112,7 +112,7 @@
 	.macro	fast_restore_user_regs
 	ldr	r1, [sp, #S_OFF + S_PSR]	@ get calling cpsr
 	ldr	lr, [sp, #S_OFF + S_PC]!	@ get pc
-	msr	spsr, r1			@ save in spsr_svc
+	msr	spsr_cxsf, r1			@ save in spsr_svc
 	ldmdb	sp, {r1 - lr}^			@ get calling r1 - lr
 	mov	r0, r0
 	add	sp, sp, #S_FRAME_SIZE - S_PC
@@ -125,7 +125,7 @@
 	.macro	slow_restore_user_regs
 	ldr	r1, [sp, #S_PSR]		@ get calling cpsr
 	ldr	lr, [sp, #S_PC]!		@ get pc
-	msr	spsr, r1			@ save in spsr_svc
+	msr	spsr_cxsf, r1			@ save in spsr_svc
 	ldmdb	sp, {r0 - lr}^			@ get calling r1 - lr
 	mov	r0, r0
 	add	sp, sp, #S_FRAME_SIZE - S_PC

arch/arm/lib/ecard.S

@@ -16,7 +16,7 @@
 
 #define CPSR2SPSR(rt) \
 		mrs	rt, cpsr; \
-		msr	spsr, rt
+		msr	spsr_cxsf, rt
 
 @ Purpose: call an expansion card loader to read bytes.
 @ Proto  : char read_loader(int offset, char *card_base, char *loader);

arch/arm/mach-s3c2410/Makefile

@@ -4,7 +4,7 @@
 
 # Object file lists.
 
-obj-y			:= s3c2410.o irq.o time.o
+obj-y			:= s3c2410.o irq.o time.o gpio.o
 obj-m			:=
 obj-n			:=
 obj-			:=

arch/arm/mach-s3c2410/gpio.c

+/* linux/arch/arm/mach-s3c2410/gpio.c
+ *
+ * Copyright (c) 2004 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C2410 GPIO support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+
+#include <asm/arch/regs-gpio.h>
+
+void s3c2410_gpio_cfgpin(unsigned int pin, unsigned int function)
+{
+	unsigned long base = S3C2410_GPIO_BASE(pin);
+	unsigned long shift = 1;
+	unsigned long mask = 3;
+	unsigned long con;
+	unsigned long flags;
+
+	if (pin < S3C2410_GPIO_BANKB) {
+		shift = 0;
+		mask  = 1;
+	}
+
+	mask <<= S3C2410_GPIO_OFFSET(pin);
+
+	local_irq_save(flags);
+
+	con = __raw_readl(base + 0x00);
+
+	con &= mask << shift;
+	con |= function;
+
+	__raw_writel(con, base + 0x00);
+
+	local_irq_restore(flags);
+}
+
+void s3c2410_gpio_pullup(unsigned int pin, unsigned int to)
+{
+	unsigned long base = S3C2410_GPIO_BASE(pin);
+	unsigned long offs = S3C2410_GPIO_OFFSET(pin);
+	unsigned long flags;
+	unsigned long up;
+
+	if (pin < S3C2410_GPIO_BANKB)
+		return;
+
+	local_irq_save(flags);
+
+	up = __raw_readl(base + 0x08);
+	up &= 1 << offs;
+	up |= to << offs;
+	__raw_writel(up, base + 0x08);
+
+	local_irq_restore(flags);
+}
+
+void s3c2410_gpio_setpin(unsigned int pin, unsigned int to)
+{
+	unsigned long base = S3C2410_GPIO_BASE(pin);
+	unsigned long offs = S3C2410_GPIO_OFFSET(pin);
+	unsigned long flags;
+	unsigned long dat;
+
+	local_irq_save(flags);
+
+	dat = __raw_readl(base + 0x04);
+	dat &= 1 << offs;
+	dat |= to << offs;
+	__raw_writel(dat, base + 0x04);
+
+	local_irq_restore(flags);
+}

arch/arm/mach-s3c2410/mach-h1940.c

@@ -52,7 +52,7 @@ static struct s3c2410_uartcfg ipaq_uartcfgs[] = {
 	[0] = {
 		.hwport	     = 0,
 		.flags	     = 0,
-		.clock	     = &s3c2410_hclk,
+		.clock	     = &s3c2410_pclk,
 		.ucon	     = 0x3c5,
 		.ulcon	     = 0x03,
 		.ufcon	     = 0x51,
@@ -60,7 +60,7 @@ static struct s3c2410_uartcfg ipaq_uartcfgs[] = {
 	[1] = {
 		.hwport	     = 1,
 		.flags	     = 0,
-		.clock	     = &s3c2410_hclk,
+		.clock	     = &s3c2410_pclk,
 		.ucon	     = 0x245,
 		.ulcon	     = 0x03,
 		.ufcon	     = 0x00,
@@ -69,7 +69,7 @@ static struct s3c2410_uartcfg ipaq_uartcfgs[] = {
 	[2] = {
 		.hwport	     = 2,
 		.flags	     = 0,
-		.clock	     = &s3c2410_hclk,
+		.clock	     = &s3c2410_pclk,
 		.ucon	     = 0x3c5,
 		.ulcon	     = 0x43,
 		.ufcon	     = 0x51,

arch/arm/mach-s3c2410/s3c2410.h

@@ -4,5 +4,5 @@ extern void s3c2410_map_io(struct map_desc *, int count);
 
 extern void s3c2410_init_irq(void);
 
-extern s3c2410_init_time(void);
+extern void s3c2410_init_time(void);
 

arch/arm/mach-sa1100/collie.c

@@ -141,4 +141,5 @@ MACHINE_START(COLLIE, "Sharp-Collie")
 	MAPIO(collie_map_io)
 	INITIRQ(sa1100_init_irq)
 	INIT_MACHINE(collie_init)
+	INITTIME(sa1100_init_time)
 MACHINE_END

arch/arm/mm/blockops.c

@@ -130,6 +130,7 @@ static struct undef_hook blockops_hook __initdata = {
 static int __init blockops_check(void)
 {
 	register unsigned int err asm("r4") = 0;
+	unsigned int err_pos = 1;
 	unsigned int cache_type;
 	int i;
 
@@ -156,8 +157,8 @@ static int __init blockops_check(void)
 
 	unregister_undef_hook(&blockops_hook);
 
-	for (i = 0; i < ARRAY_SIZE(func); i++, err >>= 1)
-		printk("%30s: %ssupported\n", func[i], err & 1 ? "not " : "");
+	for (i = 0; i < ARRAY_SIZE(func); i++, err_pos <<= 1)
+		printk("%30s: %ssupported\n", func[i], err & err_pos ? "not " : "");
 
 	if ((err & 8) == 0) {
 		printk(" --> Using %s block cache invalidate\n",

arch/i386/Makefile

@@ -104,8 +104,7 @@ head-y := arch/i386/kernel/head.o arch/i386/kernel/init_task.o
 libs-y 					+= arch/i386/lib/
 core-y					+= arch/i386/kernel/ \
 					   arch/i386/mm/ \
-					   arch/i386/$(mcore-y)/ \
-					   arch/i386/crypto/
+					   arch/i386/$(mcore-y)/
 drivers-$(CONFIG_MATH_EMULATION)	+= arch/i386/math-emu/
 drivers-$(CONFIG_PCI)			+= arch/i386/pci/
 # must be linked after kernel/

arch/i386/crypto/Makefile

-# 
-# i386/crypto/Makefile 
-# 
-# Arch-specific CryptoAPI modules.
-# 
-
-obj-$(CONFIG_CRYPTO_AES_586) += aes-i586.o
-
-aes-i586-y := aes-i586-asm.o aes-i586-glue.o

arch/i386/crypto/aes-i586-glue.c

-/* 
- * 
- * Glue Code for optimized 586 assembler version of AES
- *
- * Copyright (c) 2001, Dr Brian Gladman <brg@gladman.uk.net>, Worcester, UK.
- * Copyright (c) 2003, Adam J. Richter <adam@yggdrasil.com> (conversion to
- * 2.5 API).
- * Copyright (c) 2003, 2004 Fruhwirth Clemens <clemens@endorphin.org>
-*/
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/crypto.h>
-#include <linux/linkage.h>
-
-#define AES_MIN_KEY_SIZE	16
-#define AES_MAX_KEY_SIZE	32
-#define AES_BLOCK_SIZE		16
-#define AES_KS_LENGTH   4 * AES_BLOCK_SIZE
-#define AES_RC_LENGTH   (9 * AES_BLOCK_SIZE) / 8 - 8
-
-typedef struct
-{
-    u_int32_t	 aes_Nkey;	// the number of words in the key input block
-    u_int32_t	 aes_Nrnd;	// the number of cipher rounds
-    u_int32_t	 aes_e_key[AES_KS_LENGTH];   // the encryption key schedule
-    u_int32_t	 aes_d_key[AES_KS_LENGTH];   // the decryption key schedule
-    u_int32_t	 aes_Ncol;	// the number of columns in the cipher state
-} aes_context;
-
-/*
- * The Cipher Interface
- */
- 
-asmlinkage void aes_set_key(void *, const unsigned char [], const int, const int);
-
-
-
-/* Actually:
- * extern void aes_encrypt(const aes_context *, unsigned char [], const unsigned char []);
- * extern void aes_decrypt(const aes_context *, unsigned char [], const unsigned char []);
-*/
- 
-asmlinkage void aes_encrypt(void*, unsigned char [], const unsigned char []);
-asmlinkage void aes_decrypt(void*, unsigned char [], const unsigned char []);
-
-static int aes_set_key_glue(void *cx, const u8 *key,unsigned int key_length, u32 *flags)
-{
-	if(key_length != 16 && key_length != 24 && key_length != 32)
-	{
- 		*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
-		return -EINVAL;
-	}
-	aes_set_key(cx, key,key_length,0);
-	return 0;
-}
-
-#ifdef CONFIG_REGPARM
-static void aes_encrypt_glue(void* a, unsigned char b[], const unsigned char c[]) {
-	aes_encrypt(a,b,c);
-}
-static void aes_decrypt_glue(void* a, unsigned char b[], const unsigned char c[]) {
-	aes_decrypt(a,b,c);
-}
-#else
-#define aes_encrypt_glue aes_encrypt
-#define aes_decrypt_glue aes_decrypt
-#endif /* CONFIG_REGPARM */
-
-static struct crypto_alg aes_alg = {
-	.cra_name		=	"aes",
-	.cra_flags		=	CRYPTO_ALG_TYPE_CIPHER,
-	.cra_blocksize		=	AES_BLOCK_SIZE,
-	.cra_ctxsize		=	sizeof(aes_context),
-	.cra_module		=	THIS_MODULE,
-	.cra_list		=	LIST_HEAD_INIT(aes_alg.cra_list),
-	.cra_u			=	{
-		.cipher = {
-			.cia_min_keysize	=	AES_MIN_KEY_SIZE,
-			.cia_max_keysize	=	AES_MAX_KEY_SIZE,
-			.cia_setkey	   	= 	aes_set_key_glue,
-			.cia_encrypt	 	=	aes_encrypt_glue,
-			.cia_decrypt	  	=	aes_decrypt_glue
-		}
-	}
-};
-
-static int __init aes_init(void)
-{
-	return crypto_register_alg(&aes_alg);
-}
-
-static void __exit aes_fini(void)
-{
-	crypto_unregister_alg(&aes_alg);
-}
-
-module_init(aes_init);
-module_exit(aes_fini);
-
-MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, i586 asm optimized");
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Fruhwirth Clemens");
-MODULE_ALIAS("aes");

arch/ia64/kernel/salinfo.c

@@ -426,8 +426,6 @@ salinfo_log_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
 	struct inode *inode = file->f_dentry->d_inode;
 	struct proc_dir_entry *entry = PDE(inode);
 	struct salinfo_data *data = entry->data;
-	void *saldata;
-	size_t size;
 	u8 *buf;
 	u64 bufsize;
 
@@ -441,18 +439,7 @@ salinfo_log_read(struct file *file, char *buffer, size_t count, loff_t *ppos)
 		buf = NULL;
 		bufsize = 0;
 	}
-	if (*ppos >= bufsize)
-		return 0;
-
-	saldata = buf + file->f_pos;
-	size = bufsize - file->f_pos;
-	if (size > count)
-		size = count;
-	if (copy_to_user(buffer, saldata, size))
-		return -EFAULT;
-
-	*ppos += size;
-	return size;
+	return simple_read_from_buffer(buffer, count, ppos, buf, bufsize);
 }
 
 static void

arch/ppc64/kernel/proc_ppc64.c

@@ -161,21 +161,10 @@ static loff_t page_map_seek( struct file *file, loff_t off, int whence)
 	return (file->f_pos = new);
 }
 
-static ssize_t page_map_read( struct file *file, char *buf, size_t nbytes, loff_t *ppos)
+static ssize_t page_map_read( struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
 {
-	unsigned pos = *ppos;
 	struct proc_dir_entry *dp = PDE(file->f_dentry->d_inode);
-
-	if ( pos >= dp->size )
-		return 0;
-	if ( nbytes >= dp->size )
-		nbytes = dp->size;
-	if ( pos + nbytes > dp->size )
-		nbytes = dp->size - pos;
-
-	copy_to_user( buf, (char *)dp->data + pos, nbytes );
-	*ppos = pos + nbytes;
-	return nbytes;
+	return simple_read_from_buffer(buf, nbytes, ppos, dp->data, dp->size);
 }
 
 static int page_map_mmap( struct file *file, struct vm_area_struct *vma )

crypto/Kconfig

@@ -118,9 +118,9 @@ config CRYPTO_SERPENT
 	  See also:
 	  http://www.cl.cam.ac.uk/~rja14/serpent.html
 
-config CRYPTO_AES_GENERIC
+config CRYPTO_AES
 	tristate "AES cipher algorithms"
-	depends on CRYPTO && !(X86 && !X86_64)
+	depends on CRYPTO
 	help
 	  AES cipher algorithms (FIPS-197). AES uses the Rijndael 
 	  algorithm.
@@ -138,26 +138,6 @@ config CRYPTO_AES_GENERIC
 
 	  See http://csrc.nist.gov/CryptoToolkit/aes/ for more information.
 
-config CRYPTO_AES_586
-	tristate "AES cipher algorithms (i586)"
-	depends on CRYPTO && (X86 && !X86_64)
-	help
-	  AES cipher algorithms (FIPS-197). AES uses the Rijndael 
-	  algorithm.
-
-	  Rijndael appears to be consistently a very good performer in
-	  both hardware and software across a wide range of computing 
-	  environments regardless of its use in feedback or non-feedback 
-	  modes. Its key setup time is excellent, and its key agility is 
-	  good. Rijndael's very low memory requirements make it very well 
-	  suited for restricted-space environments, in which it also 
-	  demonstrates excellent performance. Rijndael's operations are 
-	  among the easiest to defend against power and timing attacks.	
-
-	  The AES specifies three key sizes: 128, 192 and 256 bits	  
-
-	  See http://csrc.nist.gov/encryption/aes/ for more information.
-
 config CRYPTO_CAST5
 	tristate "CAST5 (CAST-128) cipher algorithm"
 	depends on CRYPTO

drivers/acpi/system.c

@@ -92,8 +92,7 @@ acpi_system_read_dsdt (
 {
 	acpi_status		status = AE_OK;
 	struct acpi_buffer	dsdt = {ACPI_ALLOCATE_BUFFER, NULL};
-	void			*data = NULL;
-	size_t			size = 0;
+	ssize_t			res;
 
 	ACPI_FUNCTION_TRACE("acpi_system_read_dsdt");
 
@@ -101,22 +100,11 @@ acpi_system_read_dsdt (
 	if (ACPI_FAILURE(status))
 		return_VALUE(-ENODEV);
 
-	if (*ppos < dsdt.length) {
-		data = dsdt.pointer + file->f_pos;
-		size = dsdt.length - file->f_pos;
-		if (size > count)
-			size = count;
-		if (copy_to_user(buffer, data, size)) {
+	res = simple_read_from_buffer(buffer, count, ppos,
+				      dsdt.pointer, dsdt.length);
 	acpi_os_free(dsdt.pointer);
-			return_VALUE(-EFAULT);
-		}
-	}
 
-	acpi_os_free(dsdt.pointer);
-
-	*ppos += size;
-
-	return_VALUE(size);
+	return_VALUE(res);
 }
 
 
@@ -135,8 +123,7 @@ acpi_system_read_fadt (
 {
 	acpi_status		status = AE_OK;
 	struct acpi_buffer	fadt = {ACPI_ALLOCATE_BUFFER, NULL};
-	void			*data = NULL;
-	size_t			size = 0;
+	ssize_t			res;
 
 	ACPI_FUNCTION_TRACE("acpi_system_read_fadt");
 
@@ -144,22 +131,11 @@ acpi_system_read_fadt (
 	if (ACPI_FAILURE(status))
 		return_VALUE(-ENODEV);
 
-	if (*ppos < fadt.length) {
-		data = fadt.pointer + file->f_pos;
-		size = fadt.length - file->f_pos;
-		if (size > count)
-			size = count;
-		if (copy_to_user(buffer, data, size)) {
+	res = simple_read_from_buffer(buffer, count, ppos,
+				      fadt.pointer, fadt.length);
 	acpi_os_free(fadt.pointer);
-			return_VALUE(-EFAULT);
-		}
-	}
 
-	acpi_os_free(fadt.pointer);
-
-	*ppos += size;
-
-	return_VALUE(size);
+	return_VALUE(res);
 }
 
 

drivers/md/multipath.c

@@ -120,7 +120,7 @@ int multipath_end_request(struct bio *bio, unsigned int bytes_done, int error)
 
 	if (uptodate)
 		multipath_end_bh_io(mp_bh, uptodate);
-	else {
+	else if ((bio->bi_rw & (1 << BIO_RW_AHEAD)) == 0) {
 		/*
 		 * oops, IO error:
 		 */
@@ -130,7 +130,8 @@ int multipath_end_request(struct bio *bio, unsigned int bytes_done, int error)
 		       bdevname(rdev->bdev,b), 
 		       (unsigned long long)bio->bi_sector);
 		multipath_reschedule_retry(mp_bh);
-	}
+	} else
+		multipath_end_bh_io(mp_bh, 0);
 	rdev_dec_pending(rdev, conf->mddev);
 	return 0;
 }
@@ -382,7 +383,11 @@ static void multipathd (mddev_t *mddev)
 				" to another IO path\n",
 				bdevname(bio->bi_bdev,b),
 				(unsigned long long)bio->bi_sector);
+			*bio = *(mp_bh->master_bio);
 			bio->bi_bdev = conf->multipaths[mp_bh->path].rdev->bdev;
+			bio->bi_rw |= (1 << BIO_RW_FAILFAST);
+			bio->bi_end_io = multipath_end_request;
+			bio->bi_private = mp_bh;
 			generic_make_request(bio);
 		}
 	}

drivers/oprofile/oprofilefs.c

@@ -47,23 +47,7 @@ static struct super_operations s_ops = {
 
 ssize_t oprofilefs_str_to_user(char const * str, char __user * buf, size_t count, loff_t * offset)
 {
-	size_t len = strlen(str);
-
-	if (!count)
-		return 0;
-
-	if (*offset > len)
-		return 0;
-
-	if (count > len - *offset)
-		count = len - *offset;
-
-	if (copy_to_user(buf, str + *offset, count))
-		return -EFAULT;
-
-	*offset += count;
-
-	return count;
+	return simple_read_from_buffer(buf, count, offset, str, strlen(str));
 }
 
 
@@ -72,29 +56,10 @@ ssize_t oprofilefs_str_to_user(char const * str, char __user * buf, size_t count
 ssize_t oprofilefs_ulong_to_user(unsigned long val, char __user * buf, size_t count, loff_t * offset)
 {
 	char tmpbuf[TMPBUFSIZE];
-	size_t maxlen;
-
-	if (!count)
-		return 0;
-
-	spin_lock(&oprofilefs_lock);
-	maxlen = snprintf(tmpbuf, TMPBUFSIZE, "%lu\n", val);
-	spin_unlock(&oprofilefs_lock);
+	size_t maxlen = snprintf(tmpbuf, TMPBUFSIZE, "%lu\n", val);
 	if (maxlen > TMPBUFSIZE)
 		maxlen = TMPBUFSIZE;
-
-	if (*offset > maxlen)
-		return 0;
-
-	if (count > maxlen - *offset)
-		count = maxlen - *offset;
-
-	if (copy_to_user(buf, tmpbuf + *offset, count))
-		return -EFAULT;
-
-	*offset += count;
-
-	return count;
+	return simple_read_from_buffer(buf, count, offset, tmpbuf, maxlen);
 }
 
 

drivers/usb/host/uhci-debug.c

@@ -571,22 +571,7 @@ static ssize_t uhci_proc_read(struct file *file, char __user *buf,
 				size_t nbytes, loff_t *ppos)
 {
 	struct uhci_proc *up = file->private_data;
-	unsigned int pos;
-	unsigned int size;
-
-	pos = *ppos;
-	size = up->size;
-	if (pos >= size)
-		return 0;
-	if (nbytes > size - pos)
-		nbytes = size - pos;
-
-	if (copy_to_user(buf, up->data + pos, nbytes))
-		return -EFAULT;
-
-	*ppos += nbytes;
-
-	return nbytes;
+	return simple_read_from_buffer(buf, nbytes, ppos, up->data, up->size);
 }
 
 static int uhci_proc_release(struct inode *inode, struct file *file)

fs/libfs.c

@@ -7,6 +7,7 @@
 #include <linux/pagemap.h>
 #include <linux/mount.h>
 #include <linux/vfs.h>
+#include <asm/uaccess.h>
 
 int simple_getattr(struct vfsmount *mnt, struct dentry *dentry,
 		   struct kstat *stat)
@@ -439,6 +440,22 @@ void simple_release_fs(struct vfsmount **mount, int *count)
 	mntput(mnt);
 }
 
+ssize_t simple_read_from_buffer(void __user *to, size_t count, loff_t *ppos,
+				void *from, size_t available)
+{
+	loff_t pos = *ppos;
+	if (pos < 0)
+		return -EINVAL;
+	if (pos >= available)
+		return 0;
+	if (count > available - pos)
+		count = available - pos;
+	if (copy_to_user(to, from + pos, count))
+		return -EFAULT;
+	*ppos = pos + count;
+	return count;
+}
+
 EXPORT_SYMBOL(dcache_dir_close);
 EXPORT_SYMBOL(dcache_dir_lseek);
 EXPORT_SYMBOL(dcache_dir_open);
@@ -461,3 +478,4 @@ EXPORT_SYMBOL(simple_rmdir);
 EXPORT_SYMBOL(simple_statfs);
 EXPORT_SYMBOL(simple_sync_file);
 EXPORT_SYMBOL(simple_unlink);
+EXPORT_SYMBOL(simple_read_from_buffer);

fs/proc/array.c

@@ -137,6 +137,7 @@ static inline const char * get_task_state(struct task_struct *tsk)
 					   TASK_INTERRUPTIBLE |
 					   TASK_UNINTERRUPTIBLE |
 					   TASK_ZOMBIE |
+					   TASK_DEAD |
 					   TASK_STOPPED);
 	const char **p = &task_state_array[0];
 

include/asm-arm/arch-s3c2410/hardware.h

@@ -26,6 +26,41 @@ extern unsigned long s3c2410_pclk;
 extern unsigned long s3c2410_hclk;
 extern unsigned long s3c2410_fclk;
 
+/* external functions for GPIO support
+ *
+ * These allow various different clients to access the same GPIO
+ * registers without conflicting. If your driver only owns the entire
+ * GPIO register, then it is safe to ioremap/__raw_{read|write} to it.
+*/
+
+/* s3c2410_gpio_cfgpin
+ *
+ * set the configuration of the given pin to the value passed.
+ *
+ * eg:
+ *    s3c2410_gpio_cfgpin(S3C2410_GPA0, S3C2410_GPA0_ADDR0);
+ *    s3c2410_gpio_cfgpin(S3C2410_GPE8, S3C2410_GPE8_SDDAT1);
+*/
+
+extern void s3c2410_gpio_cfgpin(unsigned int pin, unsigned int function);
+
+/* s3c2410_gpio_pullup
+ *
+ * configure the pull-up control on the given pin
+ *
+ * to = 1 => disable the pull-up
+ *      0 => enable the pull-up
+ *
+ * eg;
+ *
+ *   s3c2410_gpio_pullup(S3C2410_GPB0, 0);
+ *   s3c2410_gpio_pullup(S3C2410_GPE8, 0);
+*/
+
+extern void s3c2410_gpio_pullup(unsigned int pin, unsigned int to);
+
+extern void s3c2410_gpio_setpin(unsigned int pin, unsigned int to);
+
 #endif /* __ASSEMBLY__ */
 
 #include <asm/sizes.h>

include/linux/fs.h

@@ -1527,6 +1527,8 @@ extern int simple_fill_super(struct super_block *, int, struct tree_descr *);
 extern int simple_pin_fs(char *name, struct vfsmount **mount, int *count);
 extern void simple_release_fs(struct vfsmount **mount, int *count);
 
+extern ssize_t simple_read_from_buffer(void __user *, size_t, loff_t *, void *, size_t);
+
 extern int inode_change_ok(struct inode *, struct iattr *);
 extern int __must_check inode_setattr(struct inode *, struct iattr *);