Merge bk://are.twiddle.net:8080/linux-alpha-2.5

into home.transmeta.com:/home/torvalds/v2.5/linux

include/asm-alpha/bitops.h

@@ -3,6 +3,7 @@
 
 #include <linux/config.h>
 #include <linux/kernel.h>
+#include <asm/compiler.h>
 
 /*
  * Copyright 1994, Linus Torvalds.
@@ -60,14 +61,14 @@ clear_bit(unsigned long nr, volatile void * addr)
 
 	__asm__ __volatile__(
 	"1:	ldl_l %0,%3\n"
-	"	and %0,%2,%0\n"
+	"	bic %0,%2,%0\n"
 	"	stl_c %0,%1\n"
 	"	beq %0,2f\n"
 	".subsection 2\n"
 	"2:	br 1b\n"
 	".previous"
 	:"=&r" (temp), "=m" (*m)
-	:"Ir" (~(1UL << (nr & 31))), "m" (*m));
+	:"Ir" (1UL << (nr & 31)), "m" (*m));
 }
 
 /*
@@ -246,12 +247,15 @@ test_bit(int nr, volatile void * addr)
  */
 static inline unsigned long ffz_b(unsigned long x)
 {
-	unsigned long sum = 0;
+	unsigned long sum, x1, x2, x4;
 
 	x = ~x & -~x;		/* set first 0 bit, clear others */
-	if (x & 0xF0) sum += 4;
-	if (x & 0xCC) sum += 2;
-	if (x & 0xAA) sum += 1;
+	x1 = x & 0xAA;
+	x2 = x & 0xCC;
+	x4 = x & 0xF0;
+	sum = x2 ? 2 : 0;
+	sum += (x4 != 0) * 4;
+	sum += (x1 != 0);
 
 	return sum;
 }
@@ -268,7 +272,7 @@ static inline unsigned long ffz(unsigned long word)
 
 	__asm__("cmpbge %1,%2,%0" : "=r"(bits) : "r"(word), "r"(~0UL));
 	qofs = ffz_b(bits);
-	__asm__("extbl %1,%2,%0" : "=r"(bits) : "r"(word), "r"(qofs));
+	bits = __kernel_extbl(word, qofs);
 	bofs = ffz_b(bits);
 
 	return qofs*8 + bofs;
@@ -290,7 +294,7 @@ static inline unsigned long __ffs(unsigned long word)
 
 	__asm__("cmpbge $31,%1,%0" : "=r"(bits) : "r"(word));
 	qofs = ffz_b(bits);
-	__asm__("extbl %1,%2,%0" : "=r"(bits) : "r"(word), "r"(qofs));
+	bits = __kernel_extbl(word, qofs);
 	bofs = ffz_b(~bits);
 
 	return qofs*8 + bofs;
@@ -349,6 +353,14 @@ static inline unsigned long hweight64(unsigned long w)
 #define hweight16(x) hweight64((x) & 0xfffful)
 #define hweight8(x)  hweight64((x) & 0xfful)
 #else
+static inline unsigned long hweight64(unsigned long w)
+{
+	unsigned long result;
+	for (result = 0; w ; w >>= 1)
+		result += (w & 1);
+	return result;
+}
+
 #define hweight32(x) generic_hweight32(x)
 #define hweight16(x) generic_hweight16(x)
 #define hweight8(x)  generic_hweight8(x)

include/asm-alpha/spinlock.h

@@ -38,12 +38,12 @@ typedef struct {
 #define spin_unlock_wait(x)	({ do { barrier(); } while ((x)->lock); })
 
 #if CONFIG_DEBUG_SPINLOCK
-extern void spin_unlock(spinlock_t * lock);
+extern void _raw_spin_unlock(spinlock_t * lock);
 extern void debug_spin_lock(spinlock_t * lock, const char *, int);
 extern int debug_spin_trylock(spinlock_t * lock, const char *, int);
 
-#define spin_lock(LOCK) debug_spin_lock(LOCK, __BASE_FILE__, __LINE__)
-#define spin_trylock(LOCK) debug_spin_trylock(LOCK, __BASE_FILE__, __LINE__)
+#define _raw_spin_lock(LOCK) debug_spin_lock(LOCK, __BASE_FILE__, __LINE__)
+#define _raw_spin_trylock(LOCK) debug_spin_trylock(LOCK, __BASE_FILE__, __LINE__)
 
 #define spin_lock_own(LOCK, LOCATION)					\
 do {									\
@@ -54,13 +54,13 @@ do {									\
 		       (LOCK)->lock ? "taken" : "freed", (LOCK)->on_cpu); \
 } while (0)
 #else
-static inline void spin_unlock(spinlock_t * lock)
+static inline void _raw_spin_unlock(spinlock_t * lock)
 {
 	mb();
 	lock->lock = 0;
 }
 
-static inline void spin_lock(spinlock_t * lock)
+static inline void _raw_spin_lock(spinlock_t * lock)
 {
 	long tmp;
 
@@ -83,7 +83,11 @@ static inline void spin_lock(spinlock_t * lock)
 	: "m"(lock->lock) : "memory");
 }
 
-#define spin_trylock(lock) (!test_and_set_bit(0,(lock)))
+static inline int _raw_spin_trylock(spinlock_t *lock)
+{
+	return !test_and_set_bit(0, &lock->lock);
+}
+
 #define spin_lock_own(LOCK, LOCATION)	((void)0)
 #endif /* CONFIG_DEBUG_SPINLOCK */
 
@@ -98,10 +102,10 @@ typedef struct {
 #define rwlock_init(x)	do { *(x) = RW_LOCK_UNLOCKED; } while(0)
 
 #if CONFIG_DEBUG_RWLOCK
-extern void write_lock(rwlock_t * lock);
-extern void read_lock(rwlock_t * lock);
+extern void _raw_write_lock(rwlock_t * lock);
+extern void _raw_read_lock(rwlock_t * lock);
 #else
-static inline void write_lock(rwlock_t * lock)
+static inline void _raw_write_lock(rwlock_t * lock)
 {
 	long regx;
 
@@ -121,7 +125,7 @@ static inline void write_lock(rwlock_t * lock)
 	: "0" (*(volatile int *)lock) : "memory");
 }
 
-static inline void read_lock(rwlock_t * lock)
+static inline void _raw_read_lock(rwlock_t * lock)
 {
 	long regx;
 
@@ -142,13 +146,13 @@ static inline void read_lock(rwlock_t * lock)
 }
 #endif /* CONFIG_DEBUG_RWLOCK */
 
-static inline void write_unlock(rwlock_t * lock)
+static inline void _raw_write_unlock(rwlock_t * lock)
 {
 	mb();
 	*(volatile int *)lock = 0;
 }
 
-static inline void read_unlock(rwlock_t * lock)
+static inline void _raw_read_unlock(rwlock_t * lock)
 {
 	long regx;
 	__asm__ __volatile__(