lib9p: fix re-use of root Qid when using createfile(); remove unused dirqidgen

2 files changed, 3 insertions, 3 deletions

diff --git a/sys/include/9p.h b/sys/include/9p.h
index 1a6dfd657..949476232 100644
--- a/sys/include/9p.h
+++ b/sys/include/9p.h
@@ -152,7 +152,6 @@ struct Tree {
 /* below is implementation-specific; don't use */
 	Lock genlock;
 	ulong qidgen;
-	ulong dirqidgen;
 };
 
 Tree*	alloctree(char*, char*, ulong, void(*destroy)(File*));
diff --git a/sys/src/lib9p/file.c b/sys/src/lib9p/file.c
index b2e726cbf..eddef7e4c 100644
--- a/sys/src/lib9p/file.c
+++ b/sys/src/lib9p/file.c
@@ -337,8 +337,9 @@ alloctree(char *uid, char *gid, ulong mode, void (*destroy)(File*))
 
 	incref(f);
 	t->root = f;
-	t->qidgen = 0;
-	t->dirqidgen = 1;
+
+	/* t->qidgen starts at 1 because root Qid.path is 0 */
+	t->qidgen = 1;
 	if(destroy == nil)
 		destroy = nop;
 	t->destroy = destroy;