--- zzzz-none-000/linux-3.10.107/drivers/base/devtmpfs.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/base/devtmpfs.c	2021-02-04 17:41:59.000000000 +0000
@@ -157,10 +157,10 @@
 	if (IS_ERR(dentry))
 		return PTR_ERR(dentry);
 
-	err = vfs_mkdir(path.dentry->d_inode, dentry, mode);
+	err = vfs_mkdir(d_inode(path.dentry), dentry, mode);
 	if (!err)
 		/* mark as kernel-created inode */
-		dentry->d_inode->i_private = &thread;
+		d_inode(dentry)->i_private = &thread;
 	done_path_create(&path, dentry);
 	return err;
 }
@@ -207,7 +207,7 @@
 	if (IS_ERR(dentry))
 		return PTR_ERR(dentry);
 
-	err = vfs_mknod(path.dentry->d_inode, dentry, mode, dev->devt);
+	err = vfs_mknod(d_inode(path.dentry), dentry, mode, dev->devt);
 	if (!err) {
 		struct iattr newattrs;
 
@@ -215,12 +215,12 @@
 		newattrs.ia_uid = uid;
 		newattrs.ia_gid = gid;
 		newattrs.ia_valid = ATTR_MODE|ATTR_UID|ATTR_GID;
-		mutex_lock(&dentry->d_inode->i_mutex);
-		notify_change(dentry, &newattrs);
-		mutex_unlock(&dentry->d_inode->i_mutex);
+		mutex_lock(&d_inode(dentry)->i_mutex);
+		notify_change(dentry, &newattrs, NULL);
+		mutex_unlock(&d_inode(dentry)->i_mutex);
 
 		/* mark as kernel-created inode */
-		dentry->d_inode->i_private = &thread;
+		d_inode(dentry)->i_private = &thread;
 	}
 	done_path_create(&path, dentry);
 	return err;
@@ -235,16 +235,16 @@
 	dentry = kern_path_locked(name, &parent);
 	if (IS_ERR(dentry))
 		return PTR_ERR(dentry);
-	if (dentry->d_inode) {
-		if (dentry->d_inode->i_private == &thread)
-			err = vfs_rmdir(parent.dentry->d_inode, dentry);
+	if (d_really_is_positive(dentry)) {
+		if (d_inode(dentry)->i_private == &thread)
+			err = vfs_rmdir(d_inode(parent.dentry), dentry);
 		else
 			err = -EPERM;
 	} else {
 		err = -ENOENT;
 	}
 	dput(dentry);
-	mutex_unlock(&parent.dentry->d_inode->i_mutex);
+	mutex_unlock(&d_inode(parent.dentry)->i_mutex);
 	path_put(&parent);
 	return err;
 }
@@ -299,18 +299,18 @@
 {
 	struct path parent;
 	struct dentry *dentry;
-	int deleted = 1;
+	int deleted = 0;
 	int err;
 
 	dentry = kern_path_locked(nodename, &parent);
 	if (IS_ERR(dentry))
 		return PTR_ERR(dentry);
 
-	if (dentry->d_inode) {
+	if (d_really_is_positive(dentry)) {
 		struct kstat stat;
 		struct path p = {.mnt = parent.mnt, .dentry = dentry};
 		err = vfs_getattr(&p, &stat);
-		if (!err && dev_mynode(dev, dentry->d_inode, &stat)) {
+		if (!err && dev_mynode(dev, d_inode(dentry), &stat)) {
 			struct iattr newattrs;
 			/*
 			 * before unlinking this node, reset permissions
@@ -321,10 +321,10 @@
 			newattrs.ia_mode = stat.mode & ~0777;
 			newattrs.ia_valid =
 				ATTR_UID|ATTR_GID|ATTR_MODE;
-			mutex_lock(&dentry->d_inode->i_mutex);
-			notify_change(dentry, &newattrs);
-			mutex_unlock(&dentry->d_inode->i_mutex);
-			err = vfs_unlink(parent.dentry->d_inode, dentry);
+			mutex_lock(&d_inode(dentry)->i_mutex);
+			notify_change(dentry, &newattrs, NULL);
+			mutex_unlock(&d_inode(dentry)->i_mutex);
+			err = vfs_unlink(d_inode(parent.dentry), dentry, NULL);
 			if (!err || err == -ENOENT)
 				deleted = 1;
 		}
@@ -332,7 +332,7 @@
 		err = -ENOENT;
 	}
 	dput(dentry);
-	mutex_unlock(&parent.dentry->d_inode->i_mutex);
+	mutex_unlock(&d_inode(parent.dentry)->i_mutex);
 
 	path_put(&parent);
 	if (deleted && strchr(nodename, '/'))