From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 26 Jan 2020 15:48:16 +0000 (-0500)
Subject: do_last(): rejoin the common path even earlier in FMODE_{OPENED,CREATED} case
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=973d4b73fbaf705f8fa5208234175606df0999e4;p=uclinux-h8%2Flinux.git

do_last(): rejoin the common path even earlier in FMODE_{OPENED,CREATED} case

... getting may_create_in_sticky() checks in FMODE_OPENED case as well.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/namei.c b/fs/namei.c
index 8cdf8ef41194..798672577367 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3199,14 +3199,7 @@ static const char *do_last(struct nameidata *nd,
 	if (IS_ERR(dentry))
 		return ERR_CAST(dentry);
 
-	if (file->f_mode & FMODE_OPENED) {
-		audit_inode(nd->name, file->f_path.dentry, 0);
-		dput(nd->path.dentry);
-		nd->path.dentry = dentry;
-		goto finish_open_created;
-	}
-
-	if (file->f_mode & FMODE_CREATED) {
+	if (file->f_mode & (FMODE_OPENED | FMODE_CREATED)) {
 		dput(nd->path.dentry);
 		nd->path.dentry = dentry;
 		goto finish_open_created;
@@ -3230,7 +3223,9 @@ finish_open:
 	error = complete_walk(nd);
 	if (error)
 		return ERR_PTR(error);
-	audit_inode(nd->name, nd->path.dentry, 0);
+finish_open_created:
+	if (!(file->f_mode & FMODE_CREATED))
+		audit_inode(nd->name, nd->path.dentry, 0);
 	if (open_flag & O_CREAT) {
 		if (d_is_dir(nd->path.dentry))
 			return ERR_PTR(-EISDIR);
@@ -3242,7 +3237,6 @@ finish_open:
 	if ((nd->flags & LOOKUP_DIRECTORY) && !d_can_lookup(nd->path.dentry))
 		return ERR_PTR(-ENOTDIR);
 
-finish_open_created:
 	do_truncate = false;
 	acc_mode = op->acc_mode;
 	if (file->f_mode & FMODE_CREATED) {