Merge bk://linux.bkbits.net/linux-2.5

into plexity.net:/home/dsaxena/src/linux-2.5-bk

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/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");

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/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);
 		}
 	}