shithub: gefs

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epoch: remove useless lock

--- a/blk.c

+++ b/blk.c

@@ -967,13 +967,9 @@

 		if((e & Eactive) && e != (ge | Eactive))

 			return;

 	}

-	lock(&fs->freelk);

-	p = fs->limbo[(ge+1)%3];

-	fs->limbo[(ge+1)%3] = nil;

-	unlock(&fs->freelk);

+	p = asetp(&fs->limbo[(ge+1)%3], nil);

 	asetl(&fs->epoch, (ge+1) % 3);

-

 	while(p != nil){

 		n = p->next;

 		cachedel(p->bp.addr);

@@ -1114,8 +1110,6 @@

 	for(i = 0; i < fs->nsyncers; i++){

 		b = cachepluck();

 		b->type = Tmagic;

-		lock(&fs->freelk);

-		unlock(&fs->freelk);

 		qput(&fs->syncq[i], b);

 	}

 	while(fs->syncing != 0)

--- a/dat.h

+++ b/dat.h

@@ -456,7 +456,6 @@

 	Chan	*rdchan;

 	int	nworker;

-	Lock	freelk;

 	vlong	qgen;

 	long	epoch;

 	long	lepoch[32];