shithub: gefs

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snap: fix block leak on dl append

--- a/fs.c

+++ b/fs.c

@@ -392,14 +392,14 @@

 static void

 truncwait(Dent *de, int id)

 {

+	epochend(id);

 	qunlock(&fs->mutlk);

 	qlock(&de->trunclk);

-	epochend(id);

 	while(de->trunc)

 		rsleep(&de->truncrz);

-	epochstart(id);

 	qunlock(&de->trunclk);

 	qlock(&fs->mutlk);

+	epochstart(id);

 }

 static int

--- a/snap.c

+++ b/snap.c

@@ -17,6 +17,7 @@

 		return;

 	traceb("dlflush", dl->ins->bp);

 	enqueue(dl->ins);

+	dropblk(dl->ins);

 	dl->ins = nil;

 	m.op = Oinsert;

 	dlist2kv(dl, &m, kvbuf, sizeof(kvbuf));

@@ -560,8 +561,10 @@

 	}

 	if(dl->ins == nil || Logspc - dl->ins->logsz < Logslop){

 		b = newblk(&fs->snap, Tdlist, 0);

-		if(dl->ins != nil)

+		if(dl->ins != nil){

 			enqueue(dl->ins);

+			dropblk(dl->ins);

+		}

 		if(dl->tl.addr == -1)

 			dl->tl = b->bp;

 		b->logp = dl->hd;