Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

arch/sparc/kernel/entry.S

@@ -38,7 +38,7 @@
 
 #define curptr      g6
 
-#define NR_SYSCALLS 284      /* Each OS is different... */
+#define NR_SYSCALLS 299      /* Each OS is different... */
 
 /* These are just handy. */
 #define _SV	save	%sp, -STACKFRAME_SZ, %sp

arch/sparc/math-emu/math.c

@@ -323,11 +323,6 @@ static int do_one_mathemu(u32 insn, unsigned long *pfsr, unsigned long *fregs)
 		case FMOVS:
 		case FABSS:
 		case FNEGS: TYPE(2,1,0,1,0,0,0); break;
-		default:
-#ifdef DEBUG_MATHEMU
-			printk("unknown FPop1: %03lx\n",(insn>>5)&0x1ff);
-#endif
-			break;
 		}
 	} else if ((insn & 0xc1f80000) == 0x81a80000)	/* FPOP2 */ {
 		switch ((insn >> 5) & 0x1ff) {
@@ -337,11 +332,6 @@ static int do_one_mathemu(u32 insn, unsigned long *pfsr, unsigned long *fregs)
 		case FCMPED: TYPE(3,0,0,2,1,2,1); break;
 		case FCMPQ: TYPE(3,0,0,3,1,3,1); break;
 		case FCMPEQ: TYPE(3,0,0,3,1,3,1); break;
-		default:
-#ifdef DEBUG_MATHEMU
-			printk("unknown FPop2: %03lx\n",(insn>>5)&0x1ff);
-#endif
-			break;
 		}
 	}
 

arch/sparc64/kernel/entry.S

@@ -25,7 +25,7 @@
 
 #define curptr      g6
 
-#define NR_SYSCALLS 284      /* Each OS is different... */
+#define NR_SYSCALLS 299      /* Each OS is different... */
 
 	.text
 	.align		32

arch/sparc64/kernel/sys32.S

@@ -84,7 +84,6 @@ SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5)
 SIGN2(sys32_bdflush, sys_bdflush, %o0, %o1)
 SIGN1(sys32_mlockall, sys_mlockall, %o0)
 SIGN1(sys32_nfsservctl, compat_sys_nfsservctl, %o0)
-SIGN1(sys32_clock_settime, compat_sys_clock_settime, %o1)
 SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1)
 SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1)
 SIGN1(sys32_io_submit, compat_sys_io_submit, %o1)

arch/sparc64/kernel/systbls.S

@@ -71,7 +71,7 @@ sys_call_table32:
 /*240*/	.word sys_munlockall, sys32_sched_setparam, sys32_sched_getparam, sys32_sched_setscheduler, sys32_sched_getscheduler
 	.word sys_sched_yield, sys32_sched_get_priority_max, sys32_sched_get_priority_min, sys32_sched_rr_get_interval, compat_sys_nanosleep
 /*250*/	.word sys32_mremap, sys32_sysctl, sys32_getsid, sys_fdatasync, sys32_nfsservctl
-	.word sys_ni_syscall, sys32_clock_settime, compat_sys_clock_gettime, compat_sys_clock_getres, sys32_clock_nanosleep
+	.word sys_ni_syscall, compat_sys_clock_settime, compat_sys_clock_gettime, compat_sys_clock_getres, sys32_clock_nanosleep
 /*260*/	.word compat_sys_sched_getaffinity, compat_sys_sched_setaffinity, sys32_timer_settime, compat_sys_timer_gettime, sys_timer_getoverrun
 	.word sys_timer_delete, compat_sys_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy
 /*270*/	.word sys32_io_submit, sys_io_cancel, compat_sys_io_getevents, sys32_mq_open, sys_mq_unlink

include/asm-sparc64/spinlock.h

@@ -131,6 +131,28 @@ static void inline __read_lock(raw_rwlock_t *lock)
 	: "memory");
 }
 
+static int inline __read_trylock(raw_rwlock_t *lock)
+{
+	int tmp1, tmp2;
+
+	__asm__ __volatile__ (
+"1:	ldsw		[%2], %0\n"
+"	brlz,a,pn	%0, 2f\n"
+"	 mov		0, %0\n"
+"	add		%0, 1, %1\n"
+"	cas		[%2], %0, %1\n"
+"	cmp		%0, %1\n"
+"	membar		#StoreLoad | #StoreStore\n"
+"	bne,pn		%%icc, 1b\n"
+"	 mov		1, %0\n"
+"2:"
+	: "=&r" (tmp1), "=&r" (tmp2)
+	: "r" (lock)
+	: "memory");
+
+	return tmp1;
+}
+
 static void inline __read_unlock(raw_rwlock_t *lock)
 {
 	unsigned long tmp1, tmp2;
@@ -211,12 +233,12 @@ static int inline __write_trylock(raw_rwlock_t *lock)
 }
 
 #define __raw_read_lock(p)	__read_lock(p)
+#define __raw_read_trylock(p)	__read_trylock(p)
 #define __raw_read_unlock(p)	__read_unlock(p)
 #define __raw_write_lock(p)	__write_lock(p)
 #define __raw_write_unlock(p)	__write_unlock(p)
 #define __raw_write_trylock(p)	__write_trylock(p)
 
-#define __raw_read_trylock(lock)	generic__raw_read_trylock(lock)
 #define __raw_read_can_lock(rw)		(!((rw)->lock & 0x80000000UL))
 #define __raw_write_can_lock(rw)	(!(rw)->lock)