shithub: gefs

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fs: return error on out of space

now that reserve space is manual, we should error when out of log space,
rather than panicking.

--- a/blk.c

+++ b/blk.c

@@ -294,7 +294,7 @@

 	 */

 	if(lb == nil || lb->logsz >= Logspc - Logslop){

 		if((o = blkalloc_lk(a)) == -1)

-			error(Efs);

+			error(Efull);

 		nl = mklogblk(a, o);

 		p = lb->data + lb->logsz;

 		PACK64(p, o|LogAlloc1);

@@ -433,10 +433,13 @@

 		free(blks);

 		return -1;

 	}

-	for(i = 0; i < nblks; i++)

-		if((blks[i] = blkalloc_lk(a)) == -1)

-			error(Efs);

-

+	for(i = 0; i < nblks; i++){

+		if((blks[i] = blkalloc_lk(a)) == -1){

+			fprint(2, "out of space to compress log");

+			free(blks);

+			return -1;

+		}

+	}

 	/* fill up the log with the ranges from the tree */

 	i = 0;

 	hd = (Bptr){blks[0], -1, -1};