- In getnewbuf() unlock the bq lock prior to sleeping when we're out of

buffers.

Submitted by:	tegge

sys/kern/vfs_bio.c

@@ -1965,6 +1965,7 @@ getnewbuf(int slpflag, int slptimeo, int size, int maxsize)
 		int flags;
 		char *waitmsg;
 
+		mtx_unlock(&bqlock);
 		if (defrag) {
 			flags = VFS_BIO_NEED_BUFSPACE;
 			waitmsg = "nbufkv";