From: Thomas Veerman <thomas@minix3.org>
Date: Fri, 10 Feb 2012 09:35:19 +0000 (+0000)
Subject: AVFS: reinitialize lookup object before reuse
X-Git-Tag: v3.2.0~52
X-Git-Url: http://zhaoyanbai.com/repos/%22http:/www.isc.org/icons/zlib_tech.html?a=commitdiff_plain;h=0c99f4f4b7d1af16aa6b196cae1f4f256059b687;p=minix.git

AVFS: reinitialize lookup object before reuse
---

diff --git a/servers/avfs/link.c b/servers/avfs/link.c
index 4dc72b4b3..1c0b4af86 100644
--- a/servers/avfs/link.c
+++ b/servers/avfs/link.c
@@ -191,12 +191,9 @@ PUBLIC int do_rename()
      user is allowed to rename */
   if ((old_dirp->v_mode & S_ISVTX) == S_ISVTX) {
 	/* Look up inode of file to unlink to retrieve owner */
-	resolve.l_flags = PATH_RET_SYMLINK;
-	resolve.l_vmp = &vmp2;	/* Shouldn't actually get locked */
+	lookup_init(&resolve, resolve.l_path, PATH_RET_SYMLINK, &vmp2, &vp);
 	resolve.l_vmnt_lock = VMNT_READ;
-	resolve.l_vnode = &vp;
 	resolve.l_vnode_lock = VNODE_READ;
-	resolve.l_flags = PATH_RET_SYMLINK;
 	vp = advance(old_dirp, &resolve, fp);
 	assert(vmp2 == NULL);
 	if (vp != NULL) {
diff --git a/servers/avfs/open.c b/servers/avfs/open.c
index d0c652108..a3fd9dc24 100644
--- a/servers/avfs/open.c
+++ b/servers/avfs/open.c
@@ -317,8 +317,8 @@ PRIVATE struct vnode *new_node(struct lookup *resolve, int oflags, mode_t bits)
   if ((dirp = last_dir(&findnode, fp)) == NULL) return(NULL);
 
   /* The final directory is accessible. Get final component of the path. */
-  findnode.l_vmp = &vp_vmp;
-  findnode.l_vnode = &vp;
+  lookup_init(&findnode, findnode.l_path, findnode.l_flags, &vp_vmp, &vp);
+  findnode.l_vmnt_lock = VMNT_WRITE;
   findnode.l_vnode_lock = (oflags & O_TRUNC) ? VNODE_WRITE : VNODE_OPCL;
   vp = advance(dirp, &findnode, fp);
   assert(vp_vmp == NULL);	/* Lookup to last dir should have yielded lock