Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linu…

…x-2.6 * 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: (85 commits) [S390] provide documentation for hvc_iucv kernel parameter. [S390] convert ctcm printks to dev_xxx and pr_xxx macros. [S390] convert zfcp printks to pr_xxx macros. [S390] convert vmlogrdr printks to pr_xxx macros. [S390] convert zfcp dumper printks to pr_xxx macros. [S390] convert cpu related printks to pr_xxx macros. [S390] convert qeth printks to dev_xxx and pr_xxx macros. [S390] convert sclp printks to pr_xxx macros. [S390] convert iucv printks to dev_xxx and pr_xxx macros. [S390] convert ap_bus printks to pr_xxx macros. [S390] convert dcssblk and extmem printks messages to pr_xxx macros. [S390] convert monwriter printks to pr_xxx macros. [S390] convert s390 debug feature printks to pr_xxx macros. [S390] convert monreader printks to pr_xxx macros. [S390] convert appldata printks to pr_xxx macros. [S390] convert setup printks to pr_xxx macros. [S390] convert hypfs printks to pr_xxx macros. [S390] convert time printks to pr_xxx macros. [S390] convert cpacf printks to pr_xxx macros. [S390] convert cio printks to pr_xxx macros. ...
git-mirror · Dec 28, 2008 · 1db2a5c · 1db2a5c
2 parents a39b863 + cef7125
commit 1db2a5c
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Showing 143 changed files with 4,876 additions and 2,300 deletions.
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
@@ -823,6 +823,9 @@ and is between 256 and 4096 characters. It is defined in the file
 
 	hlt		[BUGS=ARM,SH]
 
+	hvc_iucv=	[S390] Number of z/VM IUCV Hypervisor console (HVC)
+			       back-ends. Valid parameters: 0..8
+
 	i8042.debug	[HW] Toggle i8042 debug mode
 	i8042.direct	[HW] Put keyboard port into non-translated mode
 	i8042.dumbkbd	[HW] Pretend that controller can only read data from
@@ -2292,6 +2295,14 @@ and is between 256 and 4096 characters. It is defined in the file
 			See comment before function dc390_setup() in
 			drivers/scsi/tmscsim.c.
 
+	topology=	[S390]
+			Format: {off | on}
+			Specify if the kernel should make use of the cpu
+			topology informations if the hardware supports these.
+			The scheduler will make use of these informations and
+			e.g. base its process migration decisions on it.
+			Default is off.
+
 	tp720=		[HW,PS2]
 
 	trix=		[HW,OSS] MediaTrix AudioTrix Pro

diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
@@ -267,7 +267,7 @@ extern int ucache_bsize;
 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES
 struct linux_binprm;
 extern int arch_setup_additional_pages(struct linux_binprm *bprm,
-				       int executable_stack);
+				       int uses_interp);
 #define VDSO_AUX_ENT(a,b) NEW_AUX_ENT(a,b);
 
 #endif /* __KERNEL__ */

diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
@@ -184,8 +184,7 @@ static void dump_vdso_pages(struct vm_area_struct * vma)
  * This is called from binfmt_elf, we create the special vma for the
  * vDSO and insert it into the mm struct tree
  */
-int arch_setup_additional_pages(struct linux_binprm *bprm,
-				int executable_stack)
+int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 {
 	struct mm_struct *mm = current->mm;
 	struct page **vdso_pagelist;

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
@@ -43,6 +43,9 @@ config GENERIC_HWEIGHT
 config GENERIC_TIME
 	def_bool y
 
+config GENERIC_TIME_VSYSCALL
+	def_bool y
+
 config GENERIC_CLOCKEVENTS
 	def_bool y
 
@@ -66,10 +69,15 @@ config PGSTE
 	bool
 	default y if KVM
 
+config VIRT_CPU_ACCOUNTING
+	def_bool y
+
 mainmenu "Linux Kernel Configuration"
 
 config S390
 	def_bool y
+	select USE_GENERIC_SMP_HELPERS if SMP
+	select HAVE_FUNCTION_TRACER
 	select HAVE_OPROFILE
 	select HAVE_KPROBES
 	select HAVE_KRETPROBES
@@ -225,6 +233,14 @@ config MARCH_Z9_109
 	  Class (z9 BC). The kernel will be slightly faster but will not
 	  work on older machines such as the z990, z890, z900, and z800.
 
+config MARCH_Z10
+	bool "IBM System z10"
+	help
+	  Select this to enable optimizations for IBM System z10. The
+	  kernel will be slightly faster but will not work on older
+	  machines such as the z990, z890, z900, z800, z9-109, z9-ec
+	  and z9-bc.
+
 endchoice
 
 config PACK_STACK
@@ -343,16 +359,6 @@ config QDIO
 
 	  If unsure, say Y.
 
-config QDIO_DEBUG
-	bool "Extended debugging information"
-	depends on QDIO
-	help
-	  Say Y here to get extended debugging output in
-	    /sys/kernel/debug/s390dbf/qdio...
-	  Warning: this option reduces the performance of the QDIO module.
-
-	  If unsure, say N.
-
 config CHSC_SCH
 	tristate "Support for CHSC subchannels"
 	help
@@ -466,22 +472,9 @@ config PAGE_STATES
 	  hypervisor. The ESSA instruction is used to do the states
 	  changes between a page that has content and the unused state.
 
-config VIRT_TIMER
-	bool "Virtual CPU timer support"
-	help
-	  This provides a kernel interface for virtual CPU timers.
-	  Default is disabled.
-
-config VIRT_CPU_ACCOUNTING
-	bool "Base user process accounting on virtual cpu timer"
-	depends on VIRT_TIMER
-	help
-	  Select this option to use CPU timer deltas to do user
-	  process accounting.
-
 config APPLDATA_BASE
 	bool "Linux - VM Monitor Stream, base infrastructure"
-	depends on PROC_FS && VIRT_TIMER=y
+	depends on PROC_FS
 	help
 	  This provides a kernel interface for creating and updating z/VM APPLDATA
 	  monitor records. The monitor records are updated at certain time

diff --git a/arch/s390/Makefile b/arch/s390/Makefile
@@ -34,6 +34,7 @@ cflags-$(CONFIG_MARCH_G5)   += $(call cc-option,-march=g5)
 cflags-$(CONFIG_MARCH_Z900) += $(call cc-option,-march=z900)
 cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990)
 cflags-$(CONFIG_MARCH_Z9_109) += $(call cc-option,-march=z9-109)
+cflags-$(CONFIG_MARCH_Z10) += $(call cc-option,-march=z10)
 
 #KBUILD_IMAGE is necessary for make rpm
 KBUILD_IMAGE	:=arch/s390/boot/image

diff --git a/arch/s390/appldata/appldata.h b/arch/s390/appldata/appldata.h
@@ -26,10 +26,6 @@
 #define CTL_APPLDATA_NET_SUM	2125
 #define CTL_APPLDATA_PROC	2126
 
-#define P_INFO(x...)	printk(KERN_INFO MY_PRINT_NAME " info: " x)
-#define P_ERROR(x...)	printk(KERN_ERR MY_PRINT_NAME " error: " x)
-#define P_WARNING(x...)	printk(KERN_WARNING MY_PRINT_NAME " status: " x)
-
 struct appldata_ops {
 	struct list_head list;
 	struct ctl_table_header *sysctl_header;

diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c
@@ -10,6 +10,9 @@
  * Author: Gerald Schaefer <gerald.schaefer@de.ibm.com>
  */
 
+#define KMSG_COMPONENT	"appldata"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
@@ -32,7 +35,6 @@
 #include "appldata.h"
 
 
-#define MY_PRINT_NAME	"appldata"		/* for debug messages, etc. */
 #define APPLDATA_CPU_INTERVAL	10000		/* default (CPU) time for
 						   sampling interval in
 						   milliseconds */
@@ -390,8 +392,8 @@ appldata_generic_handler(ctl_table *ctl, int write, struct file *filp,
 					(unsigned long) ops->data, ops->size,
 					ops->mod_lvl);
 		if (rc != 0) {
-			P_ERROR("START DIAG 0xDC for %s failed, "
-				"return code: %d\n", ops->name, rc);
+			pr_err("Starting the data collection for %s "
+			       "failed with rc=%d\n", ops->name, rc);
 			module_put(ops->owner);
 		} else
 			ops->active = 1;
@@ -401,8 +403,8 @@ appldata_generic_handler(ctl_table *ctl, int write, struct file *filp,
 				(unsigned long) ops->data, ops->size,
 				ops->mod_lvl);
 		if (rc != 0)
-			P_ERROR("STOP DIAG 0xDC for %s failed, "
-				"return code: %d\n", ops->name, rc);
+			pr_err("Stopping the data collection for %s "
+			       "failed with rc=%d\n", ops->name, rc);
 		module_put(ops->owner);
 	}
 	spin_unlock(&appldata_ops_lock);

diff --git a/arch/s390/appldata/appldata_os.c b/arch/s390/appldata/appldata_os.c
@@ -9,6 +9,9 @@
  * Author: Gerald Schaefer <gerald.schaefer@de.ibm.com>
  */
 
+#define KMSG_COMPONENT	"appldata"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
@@ -22,7 +25,6 @@
 #include "appldata.h"
 
 
-#define MY_PRINT_NAME	"appldata_os"		/* for debug messages, etc. */
 #define LOAD_INT(x) ((x) >> FSHIFT)
 #define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
 
@@ -143,21 +145,16 @@ static void appldata_get_os_data(void *data)
 					   (unsigned long) ops.data, new_size,
 					   ops.mod_lvl);
 			if (rc != 0)
-				P_ERROR("os: START NEW DIAG 0xDC failed, "
-					"return code: %d, new size = %i\n", rc,
-					new_size);
+				pr_err("Starting a new OS data collection "
+				       "failed with rc=%d\n", rc);
 
 			rc = appldata_diag(APPLDATA_RECORD_OS_ID,
 					   APPLDATA_STOP_REC,
 					   (unsigned long) ops.data, ops.size,
 					   ops.mod_lvl);
 			if (rc != 0)
-				P_ERROR("os: STOP OLD DIAG 0xDC failed, "
-					"return code: %d, old size = %i\n", rc,
-					ops.size);
-			else
-				P_INFO("os: old record size = %i stopped\n",
-					ops.size);
+				pr_err("Stopping a faulty OS data "
+				       "collection failed with rc=%d\n", rc);
 		}
 		ops.size = new_size;
 	}
@@ -178,8 +175,8 @@ static int __init appldata_os_init(void)
 	max_size = sizeof(struct appldata_os_data) +
 		   (NR_CPUS * sizeof(struct appldata_os_per_cpu));
 	if (max_size > APPLDATA_MAX_REC_SIZE) {
-		P_ERROR("Max. size of OS record = %i, bigger than maximum "
-			"record size (%i)\n", max_size, APPLDATA_MAX_REC_SIZE);
+		pr_err("Maximum OS record size %i exceeds the maximum "
+		       "record size %i\n", max_size, APPLDATA_MAX_REC_SIZE);
 		rc = -ENOMEM;
 		goto out;
 	}

diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
@@ -17,6 +17,9 @@
  *
  */
 
+#define KMSG_COMPONENT "aes_s390"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <crypto/aes.h>
 #include <crypto/algapi.h>
 #include <linux/err.h>
@@ -169,7 +172,8 @@ static int fallback_init_cip(struct crypto_tfm *tfm)
 			CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
 
 	if (IS_ERR(sctx->fallback.cip)) {
-		printk(KERN_ERR "Error allocating fallback algo %s\n", name);
+		pr_err("Allocating AES fallback algorithm %s failed\n",
+		       name);
 		return PTR_ERR(sctx->fallback.blk);
 	}
 
@@ -349,7 +353,8 @@ static int fallback_init_blk(struct crypto_tfm *tfm)
 			CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
 
 	if (IS_ERR(sctx->fallback.blk)) {
-		printk(KERN_ERR "Error allocating fallback algo %s\n", name);
+		pr_err("Allocating AES fallback algorithm %s failed\n",
+		       name);
 		return PTR_ERR(sctx->fallback.blk);
 	}
 
@@ -515,9 +520,8 @@ static int __init aes_s390_init(void)
 
 	/* z9 109 and z9 BC/EC only support 128 bit key length */
 	if (keylen_flag == AES_KEYLEN_128)
-		printk(KERN_INFO
-		       "aes_s390: hardware acceleration only available for "
-		       "128 bit keys\n");
+		pr_info("AES hardware acceleration is only available for"
+			" 128-bit keys\n");
 
 	ret = crypto_register_alg(&aes_alg);
 	if (ret)

diff --git a/arch/s390/hypfs/hypfs_diag.c b/arch/s390/hypfs/hypfs_diag.c
@@ -3,10 +3,13 @@
  *    Hypervisor filesystem for Linux on s390. Diag 204 and 224
  *    implementation.
  *
- *    Copyright (C) IBM Corp. 2006
+ *    Copyright IBM Corp. 2006, 2008
  *    Author(s): Michael Holzheu <holzheu@de.ibm.com>
  */
 
+#define KMSG_COMPONENT "hypfs"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/string.h>
@@ -527,13 +530,14 @@ __init int hypfs_diag_init(void)
 	int rc;
 
 	if (diag204_probe()) {
-		printk(KERN_ERR "hypfs: diag 204 not working.");
+		pr_err("The hardware system does not support hypfs\n");
 		return -ENODATA;
 	}
 	rc = diag224_get_name_table();
 	if (rc) {
 		diag204_free_buffer();
-		printk(KERN_ERR "hypfs: could not get name table.\n");
+		pr_err("The hardware system does not provide all "
+		       "functions required by hypfs\n");
 	}
 	return rc;
 }

diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c
@@ -2,10 +2,13 @@
  *  arch/s390/hypfs/inode.c
  *    Hypervisor filesystem for Linux on s390.
  *
- *    Copyright (C) IBM Corp. 2006
+ *    Copyright IBM Corp. 2006, 2008
  *    Author(s): Michael Holzheu <holzheu@de.ibm.com>
  */
 
+#define KMSG_COMPONENT "hypfs"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/fs.h>
@@ -200,7 +203,7 @@ static ssize_t hypfs_aio_write(struct kiocb *iocb, const struct iovec *iov,
 	else
 		rc = hypfs_diag_create_files(sb, sb->s_root);
 	if (rc) {
-		printk(KERN_ERR "hypfs: Update failed\n");
+		pr_err("Updating the hypfs tree failed\n");
 		hypfs_delete_tree(sb->s_root);
 		goto out;
 	}
@@ -252,8 +255,7 @@ static int hypfs_parse_options(char *options, struct super_block *sb)
 			break;
 		case opt_err:
 		default:
-			printk(KERN_ERR "hypfs: Unrecognized mount option "
-			       "\"%s\" or missing value\n", str);
+			pr_err("%s is not a valid mount option\n", str);
 			return -EINVAL;
 		}
 	}
@@ -317,7 +319,7 @@ static int hypfs_fill_super(struct super_block *sb, void *data, int silent)
 	}
 	hypfs_update_update(sb);
 	sb->s_root = root_dentry;
-	printk(KERN_INFO "hypfs: Hypervisor filesystem mounted\n");
+	pr_info("Hypervisor filesystem mounted\n");
 	return 0;
 
 err_tree:
@@ -513,7 +515,7 @@ static int __init hypfs_init(void)
 	if (!MACHINE_IS_VM)
 		hypfs_diag_exit();
 fail_diag:
-	printk(KERN_ERR "hypfs: Initialization failed with rc = %i.\n", rc);
+	pr_err("Initialization of hypfs failed with rc=%i\n", rc);
 	return rc;
 }
 

diff --git a/arch/s390/include/asm/auxvec.h b/arch/s390/include/asm/auxvec.h
@@ -1,4 +1,6 @@
 #ifndef __ASMS390_AUXVEC_H
 #define __ASMS390_AUXVEC_H
 
+#define AT_SYSINFO_EHDR		33
+
 #endif
diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
@@ -47,7 +47,10 @@
 
 #endif /* CONFIG_DEBUG_BUGVERBOSE */
 
-#define BUG()	__EMIT_BUG(0)
+#define BUG() do {					\
+	__EMIT_BUG(0);					\
+	for (;;);					\
+} while (0)
 
 #define WARN_ON(x) ({					\
 	int __ret_warn_on = !!(x);			\