svn commit: r302232 - stable/10/sys/kern

[Bryan Drewery]

Author: bdrewery
Date: Mon Jun 27 21:37:30 2016
New Revision: 302232
URL: https://svnweb.freebsd.org/changeset/base/302232

Log:
  MFC r285513:
  
    exec: textvp -> oldtextvp; binvp -> newtextvp

Modified:
  stable/10/sys/kern/kern_exec.c
Directory Properties:
  stable/10/   (props changed)

Modified: stable/10/sys/kern/kern_exec.c
==============================================================================
--- stable/10/sys/kern/kern_exec.c	Mon Jun 27 21:35:19 2016	(r302231)
+++ stable/10/sys/kern/kern_exec.c	Mon Jun 27 21:37:30 2016	(r302232)
@@ -372,7 +372,7 @@ do_execve(td, args, mac_p)
 	struct vnode *tracevp = NULL;
 	struct ucred *tracecred = NULL;
 #endif
-	struct vnode *textvp = NULL, *binvp;
+	struct vnode *oldtextvp = NULL, *newtextvp;
 	cap_rights_t rights;
 	int credential_changing;
 	int textset;
@@ -446,20 +446,20 @@ interpret:
 		if (error)
 			goto exec_fail;
 
-		binvp = nd.ni_vp;
-		imgp->vp = binvp;
+		newtextvp = nd.ni_vp;
+		imgp->vp = newtextvp;
 	} else {
 		AUDIT_ARG_FD(args->fd);
 		/*
 		 * Descriptors opened only with O_EXEC or O_RDONLY are allowed.
 		 */
 		error = fgetvp_exec(td, args->fd,
-		    cap_rights_init(&rights, CAP_FEXECVE), &binvp);
+		    cap_rights_init(&rights, CAP_FEXECVE), &newtextvp);
 		if (error)
 			goto exec_fail;
-		vn_lock(binvp, LK_EXCLUSIVE | LK_RETRY);
-		AUDIT_ARG_VNODE1(binvp);
-		imgp->vp = binvp;
+		vn_lock(newtextvp, LK_EXCLUSIVE | LK_RETRY);
+		AUDIT_ARG_VNODE1(newtextvp);
+		imgp->vp = newtextvp;
 	}
 
 	/*
@@ -536,13 +536,13 @@ interpret:
 		if (args->fname != NULL)
 			NDFREE(&nd, NDF_ONLY_PNBUF);
 #ifdef MAC
-		mac_execve_interpreter_enter(binvp, &interpvplabel);
+		mac_execve_interpreter_enter(newtextvp, &interpvplabel);
 #endif
 		if (imgp->opened) {
-			VOP_CLOSE(binvp, FREAD, td->td_ucred, td);
+			VOP_CLOSE(newtextvp, FREAD, td->td_ucred, td);
 			imgp->opened = 0;
 		}
-		vput(binvp);
+		vput(newtextvp);
 		vm_object_deallocate(imgp->object);
 		imgp->object = NULL;
 		/* set new name to that of the interpreter */
@@ -643,7 +643,7 @@ interpret:
 	if (args->fname)
 		bcopy(nd.ni_cnd.cn_nameptr, p->p_comm,
 		    min(nd.ni_cnd.cn_namelen, MAXCOMLEN));
-	else if (vn_commname(binvp, p->p_comm, sizeof(p->p_comm)) != 0)
+	else if (vn_commname(newtextvp, p->p_comm, sizeof(p->p_comm)) != 0)
 		bcopy(fexecv_proc_title, p->p_comm, sizeof(fexecv_proc_title));
 	bcopy(p->p_comm, td->td_name, sizeof(td->td_name));
 #ifdef KTR
@@ -782,8 +782,8 @@ interpret:
 	 * Store the vp for use in procfs.  This vnode was referenced by namei
 	 * or fgetvp_exec.
 	 */
-	textvp = p->p_textvp;
-	p->p_textvp = binvp;
+	oldtextvp = p->p_textvp;
+	p->p_textvp = newtextvp;
 
 #ifdef KDTRACE_HOOKS
 	/*
@@ -860,8 +860,8 @@ done1:
 	/*
 	 * Handle deferred decrement of ref counts.
 	 */
-	if (textvp != NULL)
-		vrele(textvp);
+	if (oldtextvp != NULL)
+		vrele(oldtextvp);
 #ifdef KTRACE
 	if (tracevp != NULL)
 		vrele(tracevp);