Merge linux-2.6 with linux-acpi-2.6

10 files changed, 138 insertions, 114 deletions

diff --git a/include/asm-x86_64/auxvec.h b/include/asm-x86_64/auxvec.h
new file mode 100644
index 00000000000..2403c4cfced
--- /dev/null
+++ b/include/asm-x86_64/auxvec.h
@@ -0,0 +1,4 @@
+#ifndef __ASM_X86_64_AUXVEC_H
+#define __ASM_X86_64_AUXVEC_H
+
+#endif
diff --git a/include/asm-x86_64/compat.h b/include/asm-x86_64/compat.h
index d0f453c5adf..f0155c38f63 100644
--- a/include/asm-x86_64/compat.h
+++ b/include/asm-x86_64/compat.h
@@ -14,10 +14,10 @@ typedef s32		compat_ssize_t;
 typedef s32		compat_time_t;
 typedef s32		compat_clock_t;
 typedef s32		compat_pid_t;
-typedef u16		compat_uid_t;
-typedef u16		compat_gid_t;
-typedef u32		compat_uid32_t;
-typedef u32		compat_gid32_t;
+typedef u16		__compat_uid_t;
+typedef u16		__compat_gid_t;
+typedef u32		__compat_uid32_t;
+typedef u32		__compat_gid32_t;
 typedef u16		compat_mode_t;
 typedef u32		compat_ino_t;
 typedef u16		compat_dev_t;
@@ -52,8 +52,8 @@ struct compat_stat {
 	compat_ino_t	st_ino;
 	compat_mode_t	st_mode;
 	compat_nlink_t	st_nlink;
-	compat_uid_t	st_uid;
-	compat_gid_t	st_gid;
+	__compat_uid_t	st_uid;
+	__compat_gid_t	st_gid;
 	compat_dev_t	st_rdev;
 	u16		__pad2;
 	u32		st_size;
@@ -122,10 +122,10 @@ typedef u32               compat_sigset_word;
 
 struct compat_ipc64_perm {
 	compat_key_t key;
-	compat_uid32_t uid;
-	compat_gid32_t gid;
-	compat_uid32_t cuid;
-	compat_gid32_t cgid;
+	__compat_uid32_t uid;
+	__compat_gid32_t gid;
+	__compat_uid32_t cuid;
+	__compat_gid32_t cgid;
 	unsigned short mode;
 	unsigned short __pad1;
 	unsigned short seq;
diff --git a/include/asm-x86_64/fcntl.h b/include/asm-x86_64/fcntl.h
index 4411f221c03..46ab12db573 100644
--- a/include/asm-x86_64/fcntl.h
+++ b/include/asm-x86_64/fcntl.h
@@ -1,76 +1 @@
-#ifndef _X86_64_FCNTL_H
-#define _X86_64_FCNTL_H
-
-/* open/fcntl - O_SYNC is only implemented on blocks devices and on files
-   located on an ext2 file system */
-#define O_ACCMODE	   0003
-#define O_RDONLY	     00
-#define O_WRONLY	     01
-#define O_RDWR		     02
-#define O_CREAT		   0100	/* not fcntl */
-#define O_EXCL		   0200	/* not fcntl */
-#define O_NOCTTY	   0400	/* not fcntl */
-#define O_TRUNC		  01000	/* not fcntl */
-#define O_APPEND	  02000
-#define O_NONBLOCK	  04000
-#define O_NDELAY	O_NONBLOCK
-#define O_SYNC		 010000
-#define FASYNC		 020000	/* fcntl, for BSD compatibility */
-#define O_DIRECT	 040000	/* direct disk access hint */
-#define O_LARGEFILE	0100000
-#define O_DIRECTORY	0200000	/* must be a directory */
-#define O_NOFOLLOW	0400000 /* don't follow links */
-#define O_NOATIME	01000000
-
-#define F_DUPFD		0	/* dup */
-#define F_GETFD		1	/* get close_on_exec */
-#define F_SETFD		2	/* set/clear close_on_exec */
-#define F_GETFL		3	/* get file->f_flags */
-#define F_SETFL		4	/* set file->f_flags */
-#define F_GETLK		5
-#define F_SETLK		6
-#define F_SETLKW	7
-
-#define F_SETOWN	8	/*  for sockets. */
-#define F_GETOWN	9	/*  for sockets. */
-#define F_SETSIG	10	/*  for sockets. */
-#define F_GETSIG	11	/*  for sockets. */
-
-/* for F_[GET|SET]FL */
-#define FD_CLOEXEC	1	/* actually anything with low bit set goes */
-
-/* for posix fcntl() and lockf() */
-#define F_RDLCK		0
-#define F_WRLCK		1
-#define F_UNLCK		2
-
-/* for old implementation of bsd flock () */
-#define F_EXLCK		4	/* or 3 */
-#define F_SHLCK		8	/* or 4 */
-
-/* for leases */
-#define F_INPROGRESS	16
-
-/* operations for bsd flock(), also used by the kernel implementation */
-#define LOCK_SH		1	/* shared lock */
-#define LOCK_EX		2	/* exclusive lock */
-#define LOCK_NB		4	/* or'd with one of the above to prevent
-				   blocking */
-#define LOCK_UN		8	/* remove lock */
-
-#define LOCK_MAND	32	/* This is a mandatory flock */
-#define LOCK_READ	64	/* ... Which allows concurrent read operations */
-#define LOCK_WRITE	128	/* ... Which allows concurrent write operations */
-#define LOCK_RW		192	/* ... Which allows concurrent read & write ops */
-
-struct flock {
-	short  l_type;
-	short  l_whence;
-	off_t l_start;
-	off_t l_len;
-	pid_t  l_pid;
-};
-
-#define F_LINUX_SPECIFIC_BASE	1024
-
-#endif /* !_X86_64_FCNTL_H */
+#include <asm-generic/fcntl.h>
diff --git a/include/asm-x86_64/futex.h b/include/asm-x86_64/futex.h
new file mode 100644
index 00000000000..8602c09bf89
--- /dev/null
+++ b/include/asm-x86_64/futex.h
@@ -0,0 +1,98 @@
+#ifndef _ASM_FUTEX_H
+#define _ASM_FUTEX_H
+
+#ifdef __KERNEL__
+
+#include <linux/futex.h>
+#include <asm/errno.h>
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+#define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \
+  __asm__ __volatile (						\
+"1:	" insn "\n"						\
+"2:	.section .fixup,\"ax\"\n\
+3:	mov	%3, %1\n\
+	jmp	2b\n\
+	.previous\n\
+	.section __ex_table,\"a\"\n\
+	.align	8\n\
+	.quad	1b,3b\n\
+	.previous"						\
+	: "=r" (oldval), "=r" (ret), "=m" (*uaddr)		\
+	: "i" (-EFAULT), "m" (*uaddr), "0" (oparg), "1" (0))
+
+#define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \
+  __asm__ __volatile (						\
+"1:	movl	%2, %0\n\
+	movl	%0, %3\n"					\
+	insn "\n"						\
+"2:	" LOCK_PREFIX "cmpxchgl %3, %2\n\
+	jnz	1b\n\
+3:	.section .fixup,\"ax\"\n\
+4:	mov	%5, %1\n\
+	jmp	3b\n\
+	.previous\n\
+	.section __ex_table,\"a\"\n\
+	.align	8\n\
+	.quad	1b,4b,2b,4b\n\
+	.previous"						\
+	: "=&a" (oldval), "=&r" (ret), "=m" (*uaddr),		\
+	  "=&r" (tem)						\
+	: "r" (oparg), "i" (-EFAULT), "m" (*uaddr), "1" (0))
+
+static inline int
+futex_atomic_op_inuser (int encoded_op, int __user *uaddr)
+{
+	int op = (encoded_op >> 28) & 7;
+	int cmp = (encoded_op >> 24) & 15;
+	int oparg = (encoded_op << 8) >> 20;
+	int cmparg = (encoded_op << 20) >> 20;
+	int oldval = 0, ret, tem;
+	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
+		oparg = 1 << oparg;
+
+	if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int)))
+		return -EFAULT;
+
+	inc_preempt_count();
+
+	switch (op) {
+	case FUTEX_OP_SET:
+		__futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg);
+		break;
+	case FUTEX_OP_ADD:
+		__futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval,
+				   uaddr, oparg);
+		break;
+	case FUTEX_OP_OR:
+		__futex_atomic_op2("orl %4, %3", ret, oldval, uaddr, oparg);
+		break;
+	case FUTEX_OP_ANDN:
+		__futex_atomic_op2("andl %4, %3", ret, oldval, uaddr, ~oparg);
+		break;
+	case FUTEX_OP_XOR:
+		__futex_atomic_op2("xorl %4, %3", ret, oldval, uaddr, oparg);
+		break;
+	default:
+		ret = -ENOSYS;
+	}
+
+	dec_preempt_count();
+
+	if (!ret) {
+		switch (cmp) {
+		case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
+		case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
+		case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
+		case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
+		case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
+		case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
+		default: ret = -ENOSYS;
+		}
+	}
+	return ret;
+}
+
+#endif
+#endif
diff --git a/include/asm-x86_64/hdreg.h b/include/asm-x86_64/hdreg.h
deleted file mode 100644
index 5989bbc97cb..00000000000
--- a/include/asm-x86_64/hdreg.h
+++ /dev/null
@@ -1 +0,0 @@
-#warning this file is obsolete, please do not use it
diff --git a/include/asm-x86_64/page.h b/include/asm-x86_64/page.h
index 431318764af..135ffaa0393 100644
--- a/include/asm-x86_64/page.h
+++ b/include/asm-x86_64/page.h
@@ -28,7 +28,6 @@
 #define HPAGE_SIZE	((1UL) << HPAGE_SHIFT)
 #define HPAGE_MASK	(~(HPAGE_SIZE - 1))
 #define HUGETLB_PAGE_ORDER	(HPAGE_SHIFT - PAGE_SHIFT)
-#define ARCH_HAS_HUGETLB_CLEAN_STALE_PGTABLE
 
 #ifdef __KERNEL__
 #ifndef __ASSEMBLY__
@@ -92,20 +91,6 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 
 #include <asm/bug.h>
 
-/* Pure 2^n version of get_order */
-extern __inline__ int get_order(unsigned long size)
-{
-	int order;
-
-	size = (size-1) >> (PAGE_SHIFT-1);
-	order = -1;
-	do {
-		size >>= 1;
-		order++;
-	} while (size);
-	return order;
-}
-
 #endif /* __ASSEMBLY__ */
 
 #define PAGE_OFFSET		((unsigned long)__PAGE_OFFSET)
@@ -141,4 +126,6 @@ extern __inline__ int get_order(unsigned long size)
 
 #endif /* __KERNEL__ */
 
+#include <asm-generic/page.h>
+
 #endif /* _X86_64_PAGE_H */
diff --git a/include/asm-x86_64/pgtable.h b/include/asm-x86_64/pgtable.h
index 4e167b5ea8f..5e0f2fdab0d 100644
--- a/include/asm-x86_64/pgtable.h
+++ b/include/asm-x86_64/pgtable.h
@@ -104,6 +104,19 @@ extern inline void pgd_clear (pgd_t * pgd)
 ((unsigned long) __va(pud_val(pud) & PHYSICAL_PAGE_MASK))
 
 #define ptep_get_and_clear(mm,addr,xp)	__pte(xchg(&(xp)->pte, 0))
+
+static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm, unsigned long addr, pte_t *ptep, int full)
+{
+	pte_t pte;
+	if (full) {
+		pte = *ptep;
+		*ptep = __pte(0);
+	} else {
+		pte = ptep_get_and_clear(mm, addr, ptep);
+	}
+	return pte;
+}
+
 #define pte_same(a, b)		((a).pte == (b).pte)
 
 #define PMD_SIZE	(1UL << PMD_SHIFT)
@@ -143,7 +156,7 @@ extern inline void pgd_clear (pgd_t * pgd)
 #define _PAGE_ACCESSED	0x020
 #define _PAGE_DIRTY	0x040
 #define _PAGE_PSE	0x080	/* 2MB page */
-#define _PAGE_FILE	0x040	/* set:pagecache, unset:swap */
+#define _PAGE_FILE	0x040	/* nonlinear file mapping, saved PTE; unset:swap */
 #define _PAGE_GLOBAL	0x100	/* Global TLB entry */
 
 #define _PAGE_PROTNONE	0x080	/* If not present */
@@ -247,6 +260,7 @@ static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot)
  * The following only work if pte_present() is true.
  * Undefined behaviour if not..
  */
+#define __LARGE_PTE (_PAGE_PSE|_PAGE_PRESENT)
 static inline int pte_user(pte_t pte)		{ return pte_val(pte) & _PAGE_USER; }
 extern inline int pte_read(pte_t pte)		{ return pte_val(pte) & _PAGE_USER; }
 extern inline int pte_exec(pte_t pte)		{ return pte_val(pte) & _PAGE_USER; }
@@ -254,8 +268,8 @@ extern inline int pte_dirty(pte_t pte)		{ return pte_val(pte) & _PAGE_DIRTY; }
 extern inline int pte_young(pte_t pte)		{ return pte_val(pte) & _PAGE_ACCESSED; }
 extern inline int pte_write(pte_t pte)		{ return pte_val(pte) & _PAGE_RW; }
 static inline int pte_file(pte_t pte)		{ return pte_val(pte) & _PAGE_FILE; }
+static inline int pte_huge(pte_t pte)		{ return (pte_val(pte) & __LARGE_PTE) == __LARGE_PTE; }
 
-#define __LARGE_PTE (_PAGE_PSE|_PAGE_PRESENT)
 extern inline pte_t pte_rdprotect(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_USER)); return pte; }
 extern inline pte_t pte_exprotect(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_USER)); return pte; }
 extern inline pte_t pte_mkclean(pte_t pte)	{ set_pte(&pte, __pte(pte_val(pte) & ~_PAGE_DIRTY)); return pte; }
@@ -433,6 +447,7 @@ extern int kern_addr_valid(unsigned long addr);
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
 #define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY
 #define __HAVE_ARCH_PTEP_GET_AND_CLEAR
+#define __HAVE_ARCH_PTEP_GET_AND_CLEAR_FULL
 #define __HAVE_ARCH_PTEP_SET_WRPROTECT
 #define __HAVE_ARCH_PTE_SAME
 #include <asm-generic/pgtable.h>
diff --git a/include/asm-x86_64/processor.h b/include/asm-x86_64/processor.h
index 85549e656ee..a8321999448 100644
--- a/include/asm-x86_64/processor.h
+++ b/include/asm-x86_64/processor.h
@@ -398,7 +398,7 @@ static inline void prefetch(void *x)
 #define ARCH_HAS_PREFETCHW 1
 static inline void prefetchw(void *x) 
 { 
-	alternative_input(ASM_NOP5,
+	alternative_input("prefetcht0 (%1)",
 			  "prefetchw (%1)",
 			  X86_FEATURE_3DNOW,
 			  "r" (x));
@@ -437,6 +437,11 @@ static inline void prefetchw(void *x)
 	outb((data), 0x23); \
 } while (0)
 
+static inline void serialize_cpu(void)
+{
+	__asm__ __volatile__ ("cpuid" : : : "ax", "bx", "cx", "dx");
+}
+
 static inline void __monitor(const void *eax, unsigned long ecx,
 		unsigned long edx)
 {
diff --git a/include/asm-x86_64/types.h b/include/asm-x86_64/types.h
index 32bd1426b52..c86c2e6793e 100644
--- a/include/asm-x86_64/types.h
+++ b/include/asm-x86_64/types.h
@@ -51,8 +51,6 @@ typedef u64 dma_addr_t;
 typedef u64 sector_t;
 #define HAVE_SECTOR_T
 
-typedef unsigned short kmem_bufctl_t;
-
 #endif /* __ASSEMBLY__ */
 
 #endif /* __KERNEL__ */
diff --git a/include/asm-x86_64/uaccess.h b/include/asm-x86_64/uaccess.h
index 48f292752c9..1bb8b8a2443 100644
--- a/include/asm-x86_64/uaccess.h
+++ b/include/asm-x86_64/uaccess.h
@@ -49,13 +49,6 @@
 
 #define access_ok(type, addr, size) (__range_not_ok(addr,size) == 0)
 
-/* this function will go away soon - use access_ok() instead */
-extern inline int __deprecated verify_area(int type, const void __user * addr, unsigned long size)
-{
-	return access_ok(type,addr,size) ? 0 : -EFAULT;
-}
-
-
 /*
  * The exception table consists of pairs of addresses: the first is the
  * address of an instruction that is allowed to fault, and the second is