---
name: "d_backing_dentry"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/d_backing_dentry"
---

# d\_backing\_dentry(9)

Get upper or lower dentry we should be using

## NAME

d\_backing\_dentry - Get upper or lower dentry we should be using

## SYNOPSIS

**struct dentry \* d\_backing\_dentry(struct dentry \*** *upper***);**

## ARGUMENTS

*upper*

The upper layer

## DESCRIPTION

This is the helper that should be used to get the dentry of the inode that will be used if this dentry were opened as a file. It may be the upper dentry or it may be a lower dentry pinned by the upper.

Normal filesystems should not use this to access their own dentries.

## COPYRIGHT