ovl: drop flags argument from ovl_do_setxattr()

All callers pass zero flags to ovl_do_setxattr().  So drop this argument.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>

fs/overlayfs/copy_up.c

@@ -364,7 +364,7 @@ static int ovl_set_upper_fh(struct dentry *upper, struct dentry *index)
 	if (IS_ERR(fh))
 		return PTR_ERR(fh);
 
-	err = ovl_do_setxattr(index, OVL_XATTR_UPPER, fh->buf, fh->fb.len, 0);
+	err = ovl_do_setxattr(index, OVL_XATTR_UPPER, fh->buf, fh->fb.len);
 
 	kfree(fh);
 	return err;

fs/overlayfs/inode.c

@@ -723,7 +723,7 @@ static int ovl_set_nlink_common(struct dentry *dentry,
 		return -EIO;
 
 	return ovl_do_setxattr(ovl_dentry_upper(dentry),
-			       OVL_XATTR_NLINK, buf, len, 0);
+			       OVL_XATTR_NLINK, buf, len);
 }
 
 int ovl_set_nlink_upper(struct dentry *dentry)

fs/overlayfs/namei.c

@@ -456,7 +456,7 @@ int ovl_verify_set_fh(struct dentry *dentry, const char *name,
 
 	err = ovl_verify_fh(dentry, name, fh);
 	if (set && err == -ENODATA)
-		err = ovl_do_setxattr(dentry, name, fh->buf, fh->fb.len, 0);
+		err = ovl_do_setxattr(dentry, name, fh->buf, fh->fb.len);
 	if (err)
 		goto fail;
 

fs/overlayfs/overlayfs.h

@@ -177,11 +177,11 @@ static inline ssize_t ovl_do_getxattr(struct dentry *dentry, const char *name,
 }
 
 static inline int ovl_do_setxattr(struct dentry *dentry, const char *name,
-				  const void *value, size_t size, int flags)
+				  const void *value, size_t size)
 {
-	int err = vfs_setxattr(dentry, name, value, size, flags);
-	pr_debug("setxattr(%pd2, \"%s\", \"%*pE\", %zu, 0x%x) = %i\n",
-		 dentry, name, min((int)size, 48), value, size, flags, err);
+	int err = vfs_setxattr(dentry, name, value, size, 0);
+	pr_debug("setxattr(%pd2, \"%s\", \"%*pE\", %zu, 0) = %i\n",
+		 dentry, name, min((int)size, 48), value, size, err);
 	return err;
 }
 

fs/overlayfs/super.c

@@ -1319,7 +1319,7 @@ static int ovl_make_workdir(struct super_block *sb, struct ovl_fs *ofs,
 	/*
 	 * Check if upper/work fs supports trusted.overlay.* xattr
 	 */
-	err = ovl_do_setxattr(ofs->workdir, OVL_XATTR_OPAQUE, "0", 1, 0);
+	err = ovl_do_setxattr(ofs->workdir, OVL_XATTR_OPAQUE, "0", 1);
 	if (err) {
 		ofs->noxattr = true;
 		ofs->config.index = false;

fs/overlayfs/util.c

@@ -582,7 +582,7 @@ int ovl_check_setxattr(struct dentry *dentry, struct dentry *upperdentry,
 	if (ofs->noxattr)
 		return xerr;
 
-	err = ovl_do_setxattr(upperdentry, name, value, size, 0);
+	err = ovl_do_setxattr(upperdentry, name, value, size);
 
 	if (err == -EOPNOTSUPP) {
 		pr_warn("cannot set %s xattr on upper\n", name);