Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: (81 commits)
  [S390] remove duplicated #includes
  [S390] cpumask: use mm_cpumask() wrapper
  [S390] cpumask: Use accessors code.
  [S390] cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.
  [S390] cpumask: remove cpu_coregroup_map
  [S390] fix clock comparator save area usage
  [S390] Add hwcap flag for the etf3 enhancement facility
  [S390] Ensure that ipl panic notifier is called late.
  [S390] fix dfp elf hwcap/facility bit detection
  [S390] smp: perform initial cpu reset before starting a cpu
  [S390] smp: fix memory leak on __cpu_up
  [S390] ipl: Improve checking logic and remove switch defaults.
  [S390] s390dbf: Remove needless check for NULL pointer.
  [S390] s390dbf: Remove redundant initilizations.
  [S390] use kzfree()
  [S390] BUG to BUG_ON changes
  [S390] zfcpdump: Prevent zcore from beeing built as a kernel module.
  [S390] Use csum_partial in checksum.h
  [S390] cleanup lowcore.h
  [S390] eliminate ipl_device from lowcore
  ...

Documentation/kernel-parameters.txt

@@ -830,6 +830,9 @@ and is between 256 and 4096 characters. It is defined in the file
 
 	hvc_iucv=	[S390] Number of z/VM IUCV hypervisor console (HVC)
 			       terminal devices. Valid values: 0..8
+	hvc_iucv_allow=	[S390] Comma-separated list of z/VM user IDs.
+			       If specified, z/VM IUCV HVC accepts connections
+			       from listed z/VM user IDs only.
 
 	i8042.debug	[HW] Toggle i8042 debug mode
 	i8042.direct	[HW] Put keyboard port into non-translated mode

MAINTAINERS

@@ -3745,6 +3745,15 @@ L:	linux-s390@vger.kernel.org
 W:	http://www.ibm.com/developerworks/linux/linux390/
 S:	Supported
 
+S390 ZCRYPT DRIVER
+P:	Felix Beck
+M:	felix.beck@de.ibm.com
+P:	Ralph Wuerthner
+M:	ralph.wuerthner@de.ibm.com
+M:	linux390@de.ibm.com
+L:	linux-s390@vger.kernel.org
+S:	Supported
+
 S390 ZFCP DRIVER
 P:	Christof Schmitt
 M:	christof.schmitt@de.ibm.com

arch/s390/Kconfig

@@ -343,13 +343,6 @@ source "mm/Kconfig"
 
 comment "I/O subsystem configuration"
 
-config MACHCHK_WARNING
-	bool "Process warning machine checks"
-	help
-	  Select this option if you want the machine check handler on IBM S/390 or
-	  zSeries to process warning machine checks (e.g. on power failures).
-	  If unsure, say "Y".
-
 config QDIO
 	tristate "QDIO support"
 	---help---
@@ -521,7 +514,7 @@ config APPLDATA_OS
 
 config APPLDATA_NET_SUM
 	tristate "Monitor overall network statistics"
-	depends on APPLDATA_BASE
+	depends on APPLDATA_BASE && NET
 	help
 	  This provides network related data to the Linux - VM Monitor Stream,
 	  currently there is only a total sum of network I/O statistics, no
@@ -552,7 +545,7 @@ config KEXEC
 	  but is independent of hardware/microcode support.
 
 config ZFCPDUMP
-	tristate "zfcpdump support"
+	bool "zfcpdump support"
 	select SMP
 	default n
 	help

arch/s390/crypto/prng.c

@@ -201,8 +201,7 @@ out_free:
 static void __exit prng_exit(void)
 {
 	/* wipe me */
-	memset(p->buf, 0, prng_chunk_size);
-	kfree(p->buf);
+	kzfree(p->buf);
 	kfree(p);
 
 	misc_deregister(&prng_dev);

arch/s390/include/asm/bitops.h

@@ -57,7 +57,7 @@
  * with operation of the form "set_bit(bitnr, flags)".
  */
 
-/* bitmap tables from arch/S390/kernel/bitmap.S */
+/* bitmap tables from arch/s390/kernel/bitmap.c */
 extern const char _oi_bitmap[];
 extern const char _ni_bitmap[];
 extern const char _zb_findmap[];
@@ -525,16 +525,16 @@ static inline unsigned long __ffs_word_loop(const unsigned long *addr,
 static inline unsigned long __ffz_word(unsigned long nr, unsigned long word)
 {
 #ifdef __s390x__
-	if (likely((word & 0xffffffff) == 0xffffffff)) {
+	if ((word & 0xffffffff) == 0xffffffff) {
 		word >>= 32;
 		nr += 32;
 	}
 #endif
-	if (likely((word & 0xffff) == 0xffff)) {
+	if ((word & 0xffff) == 0xffff) {
 		word >>= 16;
 		nr += 16;
 	}
-	if (likely((word & 0xff) == 0xff)) {
+	if ((word & 0xff) == 0xff) {
 		word >>= 8;
 		nr += 8;
 	}
@@ -549,16 +549,16 @@ static inline unsigned long __ffz_word(unsigned long nr, unsigned long word)
 static inline unsigned long __ffs_word(unsigned long nr, unsigned long word)
 {
 #ifdef __s390x__
-	if (likely((word & 0xffffffff) == 0)) {
+	if ((word & 0xffffffff) == 0) {
 		word >>= 32;
 		nr += 32;
 	}
 #endif
-	if (likely((word & 0xffff) == 0)) {
+	if ((word & 0xffff) == 0) {
 		word >>= 16;
 		nr += 16;
 	}
-	if (likely((word & 0xff) == 0)) {
+	if ((word & 0xff) == 0) {
 		word >>= 8;
 		nr += 8;
 	}

arch/s390/include/asm/crw.h

@@ -0,0 +1,68 @@
+/*
+ *   Data definitions for channel report processing
+ *    Copyright IBM Corp. 2000,2009
+ *    Author(s): Ingo Adlung <adlung@de.ibm.com>,
+ *		 Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ *		 Cornelia Huck <cornelia.huck@de.ibm.com>,
+ *		 Heiko Carstens <heiko.carstens@de.ibm.com>,
+ */
+
+#ifndef _ASM_S390_CRW_H
+#define _ASM_S390_CRW_H
+
+#include <linux/types.h>
+
+/*
+ * Channel Report Word
+ */
+struct crw {
+	__u32 res1 :  1;   /* reserved zero */
+	__u32 slct :  1;   /* solicited */
+	__u32 oflw :  1;   /* overflow */
+	__u32 chn  :  1;   /* chained */
+	__u32 rsc  :  4;   /* reporting source code */
+	__u32 anc  :  1;   /* ancillary report */
+	__u32 res2 :  1;   /* reserved zero */
+	__u32 erc  :  6;   /* error-recovery code */
+	__u32 rsid : 16;   /* reporting-source ID */
+} __attribute__ ((packed));
+
+typedef void (*crw_handler_t)(struct crw *, struct crw *, int);
+
+extern int crw_register_handler(int rsc, crw_handler_t handler);
+extern void crw_unregister_handler(int rsc);
+extern void crw_handle_channel_report(void);
+
+#define NR_RSCS 16
+
+#define CRW_RSC_MONITOR  0x2  /* monitoring facility */
+#define CRW_RSC_SCH	 0x3  /* subchannel */
+#define CRW_RSC_CPATH	 0x4  /* channel path */
+#define CRW_RSC_CONFIG	 0x9  /* configuration-alert facility */
+#define CRW_RSC_CSS	 0xB  /* channel subsystem */
+
+#define CRW_ERC_EVENT	 0x00 /* event information pending */
+#define CRW_ERC_AVAIL	 0x01 /* available */
+#define CRW_ERC_INIT	 0x02 /* initialized */
+#define CRW_ERC_TERROR	 0x03 /* temporary error */
+#define CRW_ERC_IPARM	 0x04 /* installed parm initialized */
+#define CRW_ERC_TERM	 0x05 /* terminal */
+#define CRW_ERC_PERRN	 0x06 /* perm. error, fac. not init */
+#define CRW_ERC_PERRI	 0x07 /* perm. error, facility init */
+#define CRW_ERC_PMOD	 0x08 /* installed parameters modified */
+
+static inline int stcrw(struct crw *pcrw)
+{
+	int ccode;
+
+	asm volatile(
+		"	stcrw	0(%2)\n"
+		"	ipm	%0\n"
+		"	srl	%0,28\n"
+		: "=d" (ccode), "=m" (*pcrw)
+		: "a" (pcrw)
+		: "cc" );
+	return ccode;
+}
+
+#endif /* _ASM_S390_CRW_H */

arch/s390/include/asm/dasd.h

@@ -162,15 +162,15 @@ typedef struct dasd_profile_info_t {
         unsigned int dasd_io_nr_req[32]; /* histogram of # of requests in chanq */
 } dasd_profile_info_t;
 
-/* 
+/*
  * struct format_data_t
  * represents all data necessary to format a dasd
  */
 typedef struct format_data_t {
-	int start_unit; /* from track */
-	int stop_unit;  /* to track */
-	int blksize;    /* sectorsize */
-        int intensity;  
+	unsigned int start_unit; /* from track */
+	unsigned int stop_unit;  /* to track */
+	unsigned int blksize;	 /* sectorsize */
+	unsigned int intensity;
 } format_data_t;
 
 /*

arch/s390/include/asm/idals.h

@@ -44,24 +44,18 @@ idal_is_needed(void *vaddr, unsigned int length)
 /*
  * Return the number of idal words needed for an address/length pair.
  */
-static inline unsigned int
-idal_nr_words(void *vaddr, unsigned int length)
+static inline unsigned int idal_nr_words(void *vaddr, unsigned int length)
 {
-#ifdef __s390x__
-	if (idal_is_needed(vaddr, length))
-		return ((__pa(vaddr) & (IDA_BLOCK_SIZE-1)) + length + 
-			(IDA_BLOCK_SIZE-1)) >> IDA_SIZE_LOG;
-#endif
-	return 0;
+	return ((__pa(vaddr) & (IDA_BLOCK_SIZE-1)) + length +
+		(IDA_BLOCK_SIZE-1)) >> IDA_SIZE_LOG;
 }
 
 /*
  * Create the list of idal words for an address/length pair.
  */
-static inline unsigned long *
-idal_create_words(unsigned long *idaws, void *vaddr, unsigned int length)
+static inline unsigned long *idal_create_words(unsigned long *idaws,
+					       void *vaddr, unsigned int length)
 {
-#ifdef __s390x__
 	unsigned long paddr;
 	unsigned int cidaw;
 
@@ -74,7 +68,6 @@ idal_create_words(unsigned long *idaws, void *vaddr, unsigned int length)
 		paddr += IDA_BLOCK_SIZE;
 		*idaws++ = paddr;
 	}
-#endif
 	return idaws;
 }
 

arch/s390/include/asm/mmu_context.h

@@ -74,7 +74,7 @@ static inline void update_mm(struct mm_struct *mm, struct task_struct *tsk)
 static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 			     struct task_struct *tsk)
 {
-	cpu_set(smp_processor_id(), next->cpu_vm_mask);
+	cpumask_set_cpu(smp_processor_id(), mm_cpumask(next));
 	update_mm(next, tsk);
 }
 

arch/s390/include/asm/nmi.h

@@ -0,0 +1,66 @@
+/*
+ *   Machine check handler definitions
+ *
+ *    Copyright IBM Corp. 2000,2009
+ *    Author(s): Ingo Adlung <adlung@de.ibm.com>,
+ *		 Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ *		 Cornelia Huck <cornelia.huck@de.ibm.com>,
+ *		 Heiko Carstens <heiko.carstens@de.ibm.com>,
+ */
+
+#ifndef _ASM_S390_NMI_H
+#define _ASM_S390_NMI_H
+
+#include <linux/types.h>
+
+struct mci {
+	__u32 sd :  1; /* 00 system damage */
+	__u32 pd :  1; /* 01 instruction-processing damage */
+	__u32 sr :  1; /* 02 system recovery */
+	__u32	 :  1; /* 03 */
+	__u32 cd :  1; /* 04 timing-facility damage */
+	__u32 ed :  1; /* 05 external damage */
+	__u32	 :  1; /* 06 */
+	__u32 dg :  1; /* 07 degradation */
+	__u32 w  :  1; /* 08 warning pending */
+	__u32 cp :  1; /* 09 channel-report pending */
+	__u32 sp :  1; /* 10 service-processor damage */
+	__u32 ck :  1; /* 11 channel-subsystem damage */
+	__u32	 :  2; /* 12-13 */
+	__u32 b  :  1; /* 14 backed up */
+	__u32	 :  1; /* 15 */
+	__u32 se :  1; /* 16 storage error uncorrected */
+	__u32 sc :  1; /* 17 storage error corrected */
+	__u32 ke :  1; /* 18 storage-key error uncorrected */
+	__u32 ds :  1; /* 19 storage degradation */
+	__u32 wp :  1; /* 20 psw mwp validity */
+	__u32 ms :  1; /* 21 psw mask and key validity */
+	__u32 pm :  1; /* 22 psw program mask and cc validity */
+	__u32 ia :  1; /* 23 psw instruction address validity */
+	__u32 fa :  1; /* 24 failing storage address validity */
+	__u32	 :  1; /* 25 */
+	__u32 ec :  1; /* 26 external damage code validity */
+	__u32 fp :  1; /* 27 floating point register validity */
+	__u32 gr :  1; /* 28 general register validity */
+	__u32 cr :  1; /* 29 control register validity */
+	__u32	 :  1; /* 30 */
+	__u32 st :  1; /* 31 storage logical validity */
+	__u32 ie :  1; /* 32 indirect storage error */
+	__u32 ar :  1; /* 33 access register validity */
+	__u32 da :  1; /* 34 delayed access exception */
+	__u32	 :  7; /* 35-41 */
+	__u32 pr :  1; /* 42 tod programmable register validity */
+	__u32 fc :  1; /* 43 fp control register validity */
+	__u32 ap :  1; /* 44 ancillary report */
+	__u32	 :  1; /* 45 */
+	__u32 ct :  1; /* 46 cpu timer validity */
+	__u32 cc :  1; /* 47 clock comparator validity */
+	__u32	 : 16; /* 47-63 */
+};
+
+struct pt_regs;
+
+extern void s390_handle_mcck(void);
+extern void s390_do_machine_check(struct pt_regs *regs);
+
+#endif /* _ASM_S390_NMI_H */

arch/s390/include/asm/processor.h

@@ -42,22 +42,8 @@ static inline void get_cpu_id(cpuid_t *ptr)
 	asm volatile("stidp 0(%1)" : "=m" (*ptr) : "a" (ptr));
 }
 
-struct cpuinfo_S390
-{
-        cpuid_t  cpu_id;
-        __u16    cpu_addr;
-        __u16    cpu_nr;
-        unsigned long loops_per_jiffy;
-        unsigned long *pgd_quick;
-#ifdef __s390x__
-        unsigned long *pmd_quick;
-#endif /* __s390x__ */
-        unsigned long *pte_quick;
-        unsigned long pgtable_cache_sz;
-};
-
 extern void s390_adjust_jiffies(void);
-extern void print_cpu_info(struct cpuinfo_S390 *);
+extern void print_cpu_info(void);
 extern int get_cpu_capability(unsigned int *);
 
 /*

arch/s390/include/asm/ptrace.h

@@ -172,6 +172,8 @@
 #define NUM_CRS		16
 #define NUM_ACRS	16
 
+#define NUM_CR_WORDS	3
+
 #define FPR_SIZE	8
 #define FPC_SIZE	4
 #define FPC_PAD_SIZE	4 /* gcc insists on aligning the fpregs */
@@ -334,7 +336,7 @@ struct pt_regs
  */
 typedef struct
 {
-	unsigned long cr[3];
+	unsigned long cr[NUM_CR_WORDS];
 } per_cr_words;
 
 #define PER_EM_MASK 0xE8000000UL

arch/s390/include/asm/qdio.h

@@ -314,6 +314,7 @@ typedef void qdio_handler_t(struct ccw_device *, unsigned int, int,
 			    int, int, unsigned long);
 
 /* qdio errors reported to the upper-layer program */
+#define QDIO_ERROR_SIGA_TARGET			0x02
 #define QDIO_ERROR_SIGA_ACCESS_EXCEPTION	0x10
 #define QDIO_ERROR_SIGA_BUSY			0x20
 #define QDIO_ERROR_ACTIVATE_CHECK_CONDITION	0x40

arch/s390/include/asm/smp.h

@@ -50,12 +50,7 @@ extern void machine_power_off_smp(void);
  
 #define PROC_CHANGE_PENALTY	20		/* Schedule penalty */
 
-#define raw_smp_processor_id()	(S390_lowcore.cpu_data.cpu_nr)
-
-static inline __u16 hard_smp_processor_id(void)
-{
-	return stap();
-}
+#define raw_smp_processor_id()	(S390_lowcore.cpu_nr)
 
 /*
  * returns 1 if cpu is in stopped/check stopped state or not operational

arch/s390/include/asm/string.h

@@ -100,6 +100,7 @@ static inline char *strcat(char *dst, const char *src)
 
 static inline char *strcpy(char *dst, const char *src)
 {
+#if __GNUC__ < 4
 	register int r0 asm("0") = 0;
 	char *ret = dst;
 
@@ -109,10 +110,14 @@ static inline char *strcpy(char *dst, const char *src)
 		: "+&a" (dst), "+&a" (src) : "d" (r0)
 		: "cc", "memory");
 	return ret;
+#else
+	return __builtin_strcpy(dst, src);
+#endif
 }
 
 static inline size_t strlen(const char *s)
 {
+#if __GNUC__ < 4
 	register unsigned long r0 asm("0") = 0;
 	const char *tmp = s;
 
@@ -121,6 +126,9 @@ static inline size_t strlen(const char *s)
 		"	jo	0b"
 		: "+d" (r0), "+a" (tmp) :  : "cc");
 	return r0 - (unsigned long) s;
+#else
+	return __builtin_strlen(s);
+#endif
 }
 
 static inline size_t strnlen(const char * s, size_t n)
@@ -135,7 +143,13 @@ static inline size_t strnlen(const char * s, size_t n)
 		: "+a" (end), "+a" (tmp) : "d" (r0)  : "cc");
 	return end - s;
 }
-
+#else /* IN_ARCH_STRING_C */
+void *memchr(const void * s, int c, size_t n);
+void *memscan(void *s, int c, size_t n);
+char *strcat(char *dst, const char *src);
+char *strcpy(char *dst, const char *src);
+size_t strlen(const char *s);
+size_t strnlen(const char * s, size_t n);
 #endif /* !IN_ARCH_STRING_C */
 
 #endif /* __KERNEL__ */

arch/s390/include/asm/sysinfo.h

@@ -100,6 +100,7 @@ struct sysinfo_3_2_2 {
 		char reserved_1[24];
 
 	} vm[8];
+	char reserved_544[3552];
 };
 
 static inline int stsi(void *sysinfo, int fc, int sel1, int sel2)

arch/s390/include/asm/tlbflush.h

@@ -51,7 +51,7 @@ static inline void __tlb_flush_full(struct mm_struct *mm)
 	 * If the process only ran on the local cpu, do a local flush.
 	 */
 	local_cpumask = cpumask_of_cpu(smp_processor_id());
-	if (cpus_equal(mm->cpu_vm_mask, local_cpumask))
+	if (cpumask_equal(mm_cpumask(mm), &local_cpumask))
 		__tlb_flush_local();
 	else
 		__tlb_flush_global();
@@ -73,7 +73,7 @@ static inline void __tlb_flush_idte(unsigned long asce)
 
 static inline void __tlb_flush_mm(struct mm_struct * mm)
 {
-	if (unlikely(cpus_empty(mm->cpu_vm_mask)))
+	if (unlikely(cpumask_empty(mm_cpumask(mm))))
 		return;
 	/*
 	 * If the machine has IDTE we prefer to do a per mm flush

arch/s390/include/asm/topology.h

@@ -5,7 +5,6 @@
 
 #define mc_capable()	(1)
 
-cpumask_t cpu_coregroup_map(unsigned int cpu);
 const struct cpumask *cpu_coregroup_mask(unsigned int cpu);
 
 extern cpumask_t cpu_core_map[NR_CPUS];

arch/s390/include/asm/vtoc.h

@@ -39,7 +39,7 @@ struct vtoc_labeldate
 	__u16 day;
 } __attribute__ ((packed));
 
-struct vtoc_volume_label
+struct vtoc_volume_label_cdl
 {
 	char volkey[4];		/* volume key = volume label */
 	char vollbl[4];		/* volume label */
@@ -56,6 +56,14 @@ struct vtoc_volume_label
 	char res3[29];		/* reserved */
 } __attribute__ ((packed));
 
+struct vtoc_volume_label_ldl {
+	char vollbl[4];		/* volume label */
+	char volid[6];		/* volume identifier */
+	char res3[69];		/* reserved */
+	char ldl_version;	/* version number, valid for ldl format */
+	__u64 formatted_blocks; /* valid when ldl_version >= f2  */
+} __attribute__ ((packed));
+
 struct vtoc_extent
 {
 	__u8 typeind;			/* extent type indicator */
@@ -140,7 +148,11 @@ struct vtoc_format4_label
 	char res2[10];		/* reserved */
 	__u8 DS4EFLVL;		/* extended free-space management level */
 	struct vtoc_cchhb DS4EFPTR; /* pointer to extended free-space info */
-	char res3[9];		/* reserved */
+	char res3;		/* reserved */
+	__u32 DS4DCYL;		/* number of logical cyls */
+	char res4[2];		/* reserved */
+	__u8 DS4DEVF2;		/* device flags */
+	char res5;		/* reserved */
 } __attribute__ ((packed));
 
 struct vtoc_ds5ext