plan 9 kernel history: overview | file list | diff list

1995/1014/port/taslock.c (diff list | history)

1992/0222/sys/src/9/port/taslock.c:1,5 – 1992/0321/sys/src/9/port/taslock.c:1,5 (short | long)
Move lib.h to ../port.
rsc Fri Mar 4 12:44:25 2005
1992/0222    
#include "u.h" 
#include "lib.h"
1992/0321    
#include "../port/lib.h"
1992/0222    
#include "mem.h" 
#include "dat.h" 
#include "fns.h"
1992/0321/sys/src/9/port/taslock.c:13,19 – 1992/0428/sys/src/9/port/taslock.c:13,22 (short | long)
1992/0222    
	ulong pc; 
 
	pc = getcallerpc(((uchar*)&l) - sizeof(l)); 
                 
1992/0428    
if(l == 0){ 
print("pc= %lux", pc); 
for(;;); 
}
1992/0222    
	for(i = 0; i < 1000000; i++){ 
    		if (tas(&ll->key) == 0){ 
			if(u)
1992/0428/sys/src/9/port/taslock.c:5,10 – 1992/0602/sys/src/9/port/taslock.c:5,13 (short | long)
1992/0222    
#include "fns.h" 
#include "../port/error.h"
1992/0602    
ulong spinner; 
ulong spinpc;
1992/0222    
void 
lock(Lock *l) 
{
1992/0428/sys/src/9/port/taslock.c:13,22 – 1992/0602/sys/src/9/port/taslock.c:16,27
1992/0222    
	ulong pc; 
 
	pc = getcallerpc(((uchar*)&l) - sizeof(l));
1992/0428    
if(l == 0){ 
print("pc= %lux", pc); 
for(;;); 
}
1992/0602    
    	if (tas(&ll->key) == 0){ 
		if(u) 
			u->p->hasspin = 1; 
		ll->pc = pc; 
		return; 
	}
1992/0222    
	for(i = 0; i < 1000000; i++){ 
    		if (tas(&ll->key) == 0){ 
			if(u)
1992/0428/sys/src/9/port/taslock.c:24,31 – 1992/0602/sys/src/9/port/taslock.c:29,36
1992/0222    
			ll->pc = pc; 
			return; 
		} 
		if(u && u->p->state == Running) 
			sched();
1992/0602    
spinner++; 
spinpc = pc;
1992/0222    
	} 
	i = l->key; 
	l->key = 0;
1992/0602/sys/src/9/port/taslock.c:5,13 – 1992/0905/sys/src/9/port/taslock.c:5,10 (short | long)
1992/0222    
#include "fns.h" 
#include "../port/error.h"
1992/0602    
ulong spinner; 
ulong spinpc; 
                 
1992/0222    
void 
lock(Lock *l) 
{
1992/0602/sys/src/9/port/taslock.c:16,28 – 1992/0905/sys/src/9/port/taslock.c:13,19
1992/0222    
	ulong pc; 
 
	pc = getcallerpc(((uchar*)&l) - sizeof(l));
1992/0602    
    	if (tas(&ll->key) == 0){ 
		if(u) 
			u->p->hasspin = 1; 
		ll->pc = pc; 
		return; 
	}
1992/0222    
	for(i = 0; i < 1000000; i++){
1992/0905    
	for(i = 0; i < 10000000; i++){
1992/0222    
    		if (tas(&ll->key) == 0){ 
			if(u) 
				u->p->hasspin = 1;
1992/0602/sys/src/9/port/taslock.c:29,36 – 1992/0905/sys/src/9/port/taslock.c:20,25
1992/0222    
			ll->pc = pc; 
			return; 
		}
1992/0602    
spinner++; 
spinpc = pc;
1992/0222    
	} 
	i = l->key; 
	l->key = 0;
1992/0905/sys/src/9/port/taslock.c:13,19 – 1992/0912/sys/src/9/port/taslock.c:13,19 (short | long)
1992/0222    
	ulong pc; 
 
	pc = getcallerpc(((uchar*)&l) - sizeof(l));
1992/0905    
	for(i = 0; i < 10000000; i++){
1992/0912    
	for(i = 0; i < 100000000; i++){
1992/0222    
    		if (tas(&ll->key) == 0){ 
			if(u) 
				u->p->hasspin = 1;
1992/0912/sys/src/9/port/taslock.c:42,47 – 1992/0913/sys/src/9/port/taslock.c:42,49 (short | long)
1992/0222    
void 
unlock(Lock *l) 
{
1992/0913    
	int s;
1992/0222    
	l->pc = 0; 
	l->key = 0; 
	if(u && u->p)
1992/0913/sys/src/9/port/taslock.c:8,31 – 1992/0914/sys/src/9/port/taslock.c:8,29 (short | long)
1992/0222    
void 
lock(Lock *l) 
{ 
	Lock *ll = l; 
	int i; 
	ulong pc; 
 
	pc = getcallerpc(((uchar*)&l) - sizeof(l));
1992/0912    
	for(i = 0; i < 100000000; i++){
1992/0222    
    		if (tas(&ll->key) == 0){
1992/0914    
 
	for(i = 0; i < 10000000; i++){ 
    		if (tas(&l->key) == 0){
1992/0222    
			if(u) 
				u->p->hasspin = 1; 
			ll->pc = pc;
1992/0914    
			l->pc = pc;
1992/0222    
			return; 
		} 
	} 
	i = l->key; 
	l->key = 0; 
                 
	panic("lock loop 0x%lux key 0x%lux pc 0x%lux held by pc 0x%lux\n", l, i, 
		pc, l->pc);
1992/0914    
	panic("lock loop 0x%lux key 0x%lux pc 0x%lux held by pc 0x%lux\n", 
			l->key, i, pc, l->pc);
1992/0222    
} 
 
int
1992/0913/sys/src/9/port/taslock.c:42,49 – 1992/0914/sys/src/9/port/taslock.c:40,45
1992/0222    
void 
unlock(Lock *l) 
{
1992/0913    
	int s; 
                 
1992/0222    
	l->pc = 0; 
	l->key = 0; 
	if(u && u->p)
1992/0914/sys/src/9/port/taslock.c:15,22 – 1993/0501/sys/src/9/port/taslock.c:15,20 (short | long)
1992/0914    
 
	for(i = 0; i < 10000000; i++){ 
    		if (tas(&l->key) == 0){
1992/0222    
			if(u) 
				u->p->hasspin = 1;
1992/0914    
			l->pc = pc;
1992/0222    
			return; 
		}
1992/0914/sys/src/9/port/taslock.c:32,39 – 1993/0501/sys/src/9/port/taslock.c:30,35
1992/0222    
	if(tas(&l->key)) 
		return 0; 
	l->pc = getcallerpc(((uchar*)&l) - sizeof(l)); 
	if(u && u->p) 
		u->p->hasspin = 1; 
	return 1; 
}
1992/0914/sys/src/9/port/taslock.c:42,47 – 1993/0501/sys/src/9/port/taslock.c:38,41
1992/0222    
{ 
	l->pc = 0; 
	l->key = 0; 
	if(u && u->p) 
		u->p->hasspin = 0; 
}
1993/0501/sys/src/9/port/taslock.c:19,27 – 1993/0525/sys/src/9/port/taslock.c:19,26 (short | long)
1992/0222    
			return; 
		} 
	} 
	l->key = 0;
1992/0914    
	panic("lock loop 0x%lux key 0x%lux pc 0x%lux held by pc 0x%lux\n", 
			l->key, i, pc, l->pc);
1993/0525    
			i, l->key, pc, l->pc);
1992/0222    
} 
 
int
1993/0525/sys/src/9/port/taslock.c:13,19 – 1993/0528/sys/src/9/port/taslock.c:13,19 (short | long)
1992/0222    
 
	pc = getcallerpc(((uchar*)&l) - sizeof(l));
1992/0914    
 
	for(i = 0; i < 10000000; i++){
1993/0528    
	for(i = 0; i < 20000000; i++){
1992/0914    
    		if (tas(&l->key) == 0){ 
			l->pc = pc;
1992/0222    
			return;
1993/0528/sys/src/9/port/taslock.c:8,26 – 1993/0830/sys/src/9/port/taslock.c:8,19 (short | long)
1992/0222    
void 
lock(Lock *l) 
{ 
	int i; 
	ulong pc; 
                 
	pc = getcallerpc(((uchar*)&l) - sizeof(l));
1992/0914    
                 
1993/0528    
	for(i = 0; i < 20000000; i++){
1992/0914    
    		if (tas(&l->key) == 0){ 
			l->pc = pc;
1993/0830    
	for(;;){ 
		while(l->key) 
			; 
		if(tas(&l->key) == 0)
1992/0222    
			return; 
		} 
	}
1992/0914    
	panic("lock loop 0x%lux key 0x%lux pc 0x%lux held by pc 0x%lux\n",
1993/0525    
			i, l->key, pc, l->pc);
1992/0222    
} 
 
int
1993/0830/sys/src/9/port/taslock.c:8,13 – 1993/1204/sys/src/9/port/taslock.c:8,15 (short | long)
1992/0222    
void 
lock(Lock *l) 
{
1993/1204    
	if(tas(&l->key) == 0) 
		return;
1993/0830    
	for(;;){ 
		while(l->key) 
			;
1993/1204/sys/src/9/port/taslock.c:10,15 – 1994/0322/sys/src/9/port/taslock.c:10,16 (short | long)
1992/0222    
{
1993/1204    
	if(tas(&l->key) == 0) 
		return;
1994/0322    
1993/0830    
	for(;;){ 
		while(l->key) 
			;
1993/1204/sys/src/9/port/taslock.c:18,29 – 1994/0322/sys/src/9/port/taslock.c:19,45
1992/0222    
	} 
}
1994/0322    
void 
ilock(Lock *l) 
{ 
	l->sr = splhi(); 
	if(tas(&l->key) == 0) 
		return; 
 
	for(;;){ 
		while(l->key) 
			; 
		if(tas(&l->key) == 0) 
			return; 
	} 
}
1992/0222    
int 
canlock(Lock *l) 
{ 
	if(tas(&l->key)) 
		return 0; 
	l->pc = getcallerpc(((uchar*)&l) - sizeof(l));
1994/0322    
1992/0222    
	return 1; 
}
1993/1204/sys/src/9/port/taslock.c:30,35 – 1994/0322/sys/src/9/port/taslock.c:46,60
1992/0222    
void 
unlock(Lock *l) 
{ 
	l->pc = 0; 
	l->key = 0;
1994/0322    
} 
 
void 
iunlock(Lock *l) 
{ 
	ulong sr; 
 
	sr = l->sr; 
	l->key = 0; 
	splx(sr);
1992/0222    
}
1994/0322/sys/src/9/port/taslock.c:22,36 – 1994/0323/sys/src/9/port/taslock.c:22,42 (short | long)
1994/0322    
void 
ilock(Lock *l) 
{ 
	l->sr = splhi(); 
	if(tas(&l->key) == 0)
1994/0323    
	ulong x; 
 
	x = splhi(); 
	if(tas(&l->key) == 0){ 
		l->sr = x;
1994/0322    
		return;
1994/0323    
	}
1994/0322    
 
	for(;;){ 
		while(l->key) 
			; 
		if(tas(&l->key) == 0)
1994/0323    
		if(tas(&l->key) == 0){ 
			l->sr = x;
1994/0322    
			return;
1994/0323    
		}
1994/0322    
	} 
}
1994/0323/sys/src/9/port/taslock.c:29,35 – 1994/0507/sys/src/9/port/taslock.c:29,35 (short | long)
1994/0323    
		l->sr = x;
1994/0322    
		return;
1994/0323    
	}
1994/0322    
                 
1994/0507    
/* print("ilock loop %lux\n", getcallerpc(0)); */
1994/0322    
	for(;;){ 
		while(l->key) 
			;
1994/0507/sys/src/9/port/taslock.c:29,35 – 1994/0516/sys/src/9/port/taslock.c:29,35 (short | long)
1994/0323    
		l->sr = x;
1994/0322    
		return;
1994/0323    
	}
1994/0507    
/* print("ilock loop %lux\n", getcallerpc(0)); */
1994/0516    
 print("ilock loop %lux\n", getcallerpc(0));
1994/0322    
	for(;;){ 
		while(l->key) 
			;
1994/0516/sys/src/9/port/taslock.c:29,35 – 1994/0525/sys/src/9/port/taslock.c:29,35 (short | long)
1994/0323    
		l->sr = x;
1994/0322    
		return;
1994/0323    
	}
1994/0516    
 print("ilock loop %lux\n", getcallerpc(0));
1994/0525    
1994/0322    
	for(;;){ 
		while(l->key) 
			;
1994/0525/sys/src/9/port/taslock.c:8,19 – 1994/0805/sys/src/9/port/taslock.c:8,26 (short | long)
1992/0222    
void 
lock(Lock *l) 
{
1994/0805    
	int loop;
1993/1204    
	if(tas(&l->key) == 0) 
		return;
1994/0322    
1994/0805    
	loop = 50000000;
1993/0830    
	for(;;){ 
		while(l->key) 
			;
1994/0805    
		while(l->key) { 
			if(loop-- <= 0) { 
				dumpstack(); 
				panic("lock loop: lock %lux\n", l); 
			} 
		}
1993/0830    
		if(tas(&l->key) == 0)
1992/0222    
			return; 
	}
1994/0805/sys/src/9/port/taslock.c:8,26 – 1994/0808/sys/src/9/port/taslock.c:8,19 (short | long)
1992/0222    
void 
lock(Lock *l) 
{
1994/0805    
	int loop; 
                 
1993/1204    
	if(tas(&l->key) == 0) 
		return;
1994/0322    
1994/0805    
	loop = 50000000;
1993/0830    
	for(;;){
1994/0805    
		while(l->key) { 
			if(loop-- <= 0) { 
				dumpstack(); 
				panic("lock loop: lock %lux\n", l); 
			} 
		}
1994/0808    
		while(l->key) 
			;
1993/0830    
		if(tas(&l->key) == 0)
1992/0222    
			return; 
	}
1994/0808/sys/src/9/port/taslock.c:8,16 – 1995/0108/sys/src/9/port/taslock.c:8,35 (short | long)
1992/0222    
void 
lock(Lock *l) 
{
1995/0108    
	int n; 
 
	if(up) { 
		n = up->inlock+2; 
		up->inlock = n; 
		if(tas(&l->key) == 0) 
			return; 
 
		for(;;){ 
			while(l->key) 
				if(conf.nproc == 1) { 
					up->yield = 1; 
					sched(); 
				} 
			up->inlock = n; 
			if(tas(&l->key) == 0) 
				return; 
		} 
	}
1993/1204    
	if(tas(&l->key) == 0) 
		return;
1994/0322    
                 
1993/0830    
	for(;;){
1994/0808    
		while(l->key) 
			;
1994/0808/sys/src/9/port/taslock.c:52,58 – 1995/0108/sys/src/9/port/taslock.c:71,85
1992/0222    
void 
unlock(Lock *l) 
{
1995/0108    
	int n;
1992/0222    
	l->key = 0;
1995/0108    
	if(up) { 
		n = up->inlock-2; 
		if(n < 0) 
			n = 0; 
		up->inlock = n; 
	}
1994/0322    
} 
 
void
1995/0108/sys/src/9/port/taslock.c:38,70 – 1995/0109/sys/src/9/port/taslock.c:38,60 (short | long)
1992/0222    
	} 
}
1994/0322    
void 
ilock(Lock *l)
1995/0109    
int 
canlock(Lock *l)
1994/0322    
{
1994/0323    
	ulong x;
1995/0109    
	int n;
1994/0323    
 
	x = splhi(); 
	if(tas(&l->key) == 0){ 
		l->sr = x;
1994/0322    
		return;
1994/0323    
	}
1994/0525    
                 
1994/0322    
	for(;;){ 
		while(l->key) 
			;
1994/0323    
		if(tas(&l->key) == 0){ 
			l->sr = x;
1994/0322    
			return;
1995/0109    
	if(up) { 
		n = up->inlock; 
		up->inlock = n+2; 
		if(tas(&l->key)) { 
			up->inlock = n; 
			return 0;
1994/0323    
		}
1995/0109    
		return 1;
1994/0322    
	} 
}
1992/0222    
int 
canlock(Lock *l) 
{ 
	if(tas(&l->key)) 
		return 0;
1994/0322    
                 
1992/0222    
	return 1; 
}
1995/0108/sys/src/9/port/taslock.c:73,79 – 1995/0109/sys/src/9/port/taslock.c:63,68
1992/0222    
{
1995/0108    
	int n;
1992/0222    
	l->key = 0;
1995/0108    
	if(up) { 
		n = up->inlock-2; 
		if(n < 0)
1995/0108/sys/src/9/port/taslock.c:80,93 – 1995/0109/sys/src/9/port/taslock.c:69,93
1995/0108    
			n = 0; 
		up->inlock = n; 
	}
1995/0109    
	l->key = 0;
1994/0322    
} 
 
void
1995/0109    
ilock(Lock *l) 
{ 
	ulong sr; 
 
	sr = splhi(); 
	lock(l); 
	l->sr = sr; 
} 
 
void
1994/0322    
iunlock(Lock *l) 
{ 
	ulong sr; 
 
	sr = l->sr; 
	l->key = 0;
1995/0109    
	unlock(l);
1994/0322    
	splx(sr);
1992/0222    
}
1995/0109/sys/src/9/port/taslock.c:8,40 – 1995/0110/sys/src/9/port/taslock.c:8,42 (short | long)
1992/0222    
void 
lock(Lock *l) 
{
1995/0108    
	int n;
1995/0110    
	if(tas(&l->key) == 0) 
		return;
1995/0108    
 
	if(up) { 
		n = up->inlock+2; 
		up->inlock = n;
1995/0110    
	for(;;){ 
		while(l->key) 
			;
1995/0108    
		if(tas(&l->key) == 0) 
			return; 
                 
		for(;;){ 
			while(l->key) 
				if(conf.nproc == 1) { 
					up->yield = 1; 
					sched(); 
				} 
			up->inlock = n; 
			if(tas(&l->key) == 0) 
				return; 
		} 
	}
1995/0110    
}
1995/0108    
1993/1204    
	if(tas(&l->key) == 0)
1995/0110    
void 
ilock(Lock *l) 
{ 
	ulong x; 
 
	x = splhi(); 
	if(tas(&l->key) == 0){ 
		l->sr = x;
1993/1204    
		return;
1995/0110    
	}
1993/0830    
	for(;;){
1994/0808    
		while(l->key) 
			;
1993/0830    
		if(tas(&l->key) == 0)
1995/0110    
		if(tas(&l->key) == 0){ 
			l->sr = x;
1992/0222    
			return;
1995/0110    
		}
1992/0222    
	} 
}
1995/0109/sys/src/9/port/taslock.c:41,60 – 1995/0110/sys/src/9/port/taslock.c:43,51
1995/0109    
int 
canlock(Lock *l)
1994/0322    
{
1995/0109    
	int n;
1994/0323    
                 
1995/0109    
	if(up) { 
		n = up->inlock; 
		up->inlock = n+2; 
		if(tas(&l->key)) { 
			up->inlock = n; 
			return 0;
1994/0323    
		}
1995/0109    
		return 1;
1994/0322    
	} 
                 
1992/0222    
	if(tas(&l->key)) 
		return 0;
1995/0110    
1992/0222    
	return 1; 
}
1995/0109/sys/src/9/port/taslock.c:61,93 – 1995/0110/sys/src/9/port/taslock.c:52,66
1992/0222    
void 
unlock(Lock *l) 
{
1995/0108    
	int n; 
                 
	if(up) { 
		n = up->inlock-2; 
		if(n < 0) 
			n = 0; 
		up->inlock = n; 
	}
1995/0109    
	l->key = 0;
1994/0322    
} 
 
void
1995/0109    
ilock(Lock *l) 
{ 
	ulong sr; 
                 
	sr = splhi(); 
	lock(l); 
	l->sr = sr; 
} 
                 
void
1994/0322    
iunlock(Lock *l) 
{ 
	ulong sr; 
 
	sr = l->sr;
1995/0109    
	unlock(l);
1995/0110    
	l->key = 0;
1994/0322    
	splx(sr);
1992/0222    
}
1995/0110/sys/src/9/port/taslock.c:8,21 – 1995/1009/sys/src/9/port/taslock.c:8,33 (short | long)
1992/0222    
void 
lock(Lock *l) 
{
1995/0110    
	if(tas(&l->key) == 0)
1995/1009    
	int i; 
	ulong pc; 
 
	pc = getcallerpc(l); 
 
	if(tas(&l->key) == 0){ 
		l->pc = pc;
1995/0110    
		return;
1995/1009    
	}
1995/0108    
1995/0110    
	for(;;){
1995/1009    
		i = 0;
1995/0110    
		while(l->key) 
			;
1995/0108    
		if(tas(&l->key) == 0)
1995/1009    
			if(i++ > 10000000) 
				panic("lock loop key 0x%lux pc 0x%lux held by pc 0x%lux\n", 
					l->key, getcallerpc(l), l->pc); 
		if(tas(&l->key) == 0){ 
			l->pc = pc;
1995/0108    
			return;
1995/1009    
		}
1995/0108    
	}
1995/0110    
}
1995/0108    
1995/0110/sys/src/9/port/taslock.c:23,32 – 1995/1009/sys/src/9/port/taslock.c:35,48
1995/0110    
ilock(Lock *l) 
{ 
	ulong x;
1995/1009    
	ulong pc;
1995/0110    
1995/1009    
	pc = getcallerpc(l);
1995/0110    
	x = splhi(); 
	if(tas(&l->key) == 0){ 
		l->sr = x;
1995/1009    
		l->pc = pc;
1993/1204    
		return;
1995/0110    
	}
1995/0110/sys/src/9/port/taslock.c:35,40 – 1995/1009/sys/src/9/port/taslock.c:51,57
1994/0808    
			;
1995/0110    
		if(tas(&l->key) == 0){ 
			l->sr = x;
1995/1009    
			l->pc = pc;
1992/0222    
			return;
1995/0110    
		}
1992/0222    
	}
1995/0110/sys/src/9/port/taslock.c:46,51 – 1995/1009/sys/src/9/port/taslock.c:63,69
1992/0222    
	if(tas(&l->key)) 
		return 0;
1995/0110    
1995/1009    
	l->pc = getcallerpc(l);
1992/0222    
	return 1; 
}
1995/1009/sys/src/9/port/taslock.c:21,29 – 1995/1014/sys/src/9/port/taslock.c:21,29 (short | long)
1995/0110    
	for(;;){
1995/1009    
		i = 0;
1995/0110    
		while(l->key)
1995/1009    
			if(i++ > 10000000) 
				panic("lock loop key 0x%lux pc 0x%lux held by pc 0x%lux\n", 
					l->key, getcallerpc(l), l->pc);
1995/1014    
			if(i++ > 100000000) 
				panic("lock loop key 0x%lux pc 0x%lux held by pc 0x%lux pl 0x%lux\n", 
					l->key, pc, l->pc, splhi());
1995/1009    
		if(tas(&l->key) == 0){ 
			l->pc = pc;
1995/0108    
			return;
1995/1009/sys/src/9/port/taslock.c:71,76 – 1995/1014/sys/src/9/port/taslock.c:71,77
1992/0222    
unlock(Lock *l) 
{
1995/0109    
	l->key = 0;
1995/1014    
	l->pc = 0;
1994/0322    
} 
 
void
1995/1009/sys/src/9/port/taslock.c:80,84 – 1995/1014/sys/src/9/port/taslock.c:81,86
1994/0322    
 
	sr = l->sr;
1995/0110    
	l->key = 0;
1995/1014    
	l->pc = 0;
1994/0322    
	splx(sr);
1992/0222    
}
1995/1014/sys/src/9/port/taslock.c:6,20 – 1995/1030/sys/src/9/port/taslock.c:6,30 (short | long)
1992/0222    
#include "../port/error.h" 
 
void
1995/1030    
lockloop(Lock *l, ulong pc) 
{ 
	print("lock loop key 0x%lux pc 0x%lux held by pc 0x%lux proc %d\n", 
		l->key, pc, l->pc, l->pid); 
	dumpaproc(up); 
} 
 
void
1992/0222    
lock(Lock *l) 
{
1995/1009    
	int i; 
	ulong pc;
1995/1030    
	ulong pc, pid;
1995/1009    
 
	pc = getcallerpc(l);
1995/1030    
	pid = up ? up->pid : 0;
1995/1009    
 
	if(tas(&l->key) == 0){ 
		l->pc = pc;
1995/1030    
		l->pid = pid;
1995/0110    
		return;
1995/1009    
	}
1995/0108    
1995/1014/sys/src/9/port/taslock.c:21,31 – 1995/1030/sys/src/9/port/taslock.c:31,43
1995/0110    
	for(;;){
1995/1009    
		i = 0;
1995/0110    
		while(l->key)
1995/1014    
			if(i++ > 100000000) 
				panic("lock loop key 0x%lux pc 0x%lux held by pc 0x%lux pl 0x%lux\n", 
					l->key, pc, l->pc, splhi());
1995/1030    
			if(i++ > 100000000){ 
				i = 0; 
				lockloop(l, pc); 
			}
1995/1009    
		if(tas(&l->key) == 0){ 
			l->pc = pc;
1995/1030    
			l->pid = pid;
1995/0108    
			return;
1995/1009    
		}
1995/0108    
	}
1995/1014/sys/src/9/port/taslock.c:35,48 – 1995/1030/sys/src/9/port/taslock.c:47,62
1995/0110    
ilock(Lock *l) 
{ 
	ulong x;
1995/1009    
	ulong pc;
1995/1030    
	ulong pc, pid;
1995/0110    
1995/1009    
	pc = getcallerpc(l);
1995/1030    
	pid = up ? up->pid : 0;
1995/1009    
1995/0110    
	x = splhi(); 
	if(tas(&l->key) == 0){ 
		l->sr = x;
1995/1009    
		l->pc = pc;
1995/1030    
		l->pid = pid;
1993/1204    
		return;
1995/0110    
	}
1995/1014/sys/src/9/port/taslock.c:52,57 – 1995/1030/sys/src/9/port/taslock.c:66,72
1995/0110    
		if(tas(&l->key) == 0){ 
			l->sr = x;
1995/1009    
			l->pc = pc;
1995/1030    
			l->pid = pid;
1992/0222    
			return;
1995/0110    
		}
1992/0222    
	}
1995/1014/sys/src/9/port/taslock.c:64,69 – 1995/1030/sys/src/9/port/taslock.c:79,85
1992/0222    
		return 0;
1995/0110    
1995/1009    
	l->pc = getcallerpc(l);
1995/1030    
	l->pid = up ? up->pid : 0;
1992/0222    
	return 1; 
}
Too many diffs (26 > 25). Stopping.


source code copyright © 1990-2005 Lucent Technologies; see license
Plan 9 distribution
comments to russ cox (rsc@swtch.com)