'\" t
.\"     Title: d_backing_inode
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: September 2017
.\"    Manual: The Linux VFS
.\"    Source: Kernel Hackers Manual 4.12.13
.\"  Language: English
.\"
.TH "D_BACKING_INODE" "9" "September 2017" "Kernel Hackers Manual 4\&.12\&" "The Linux VFS"
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.SH "NAME"
d_backing_inode \- Get upper or lower inode we should be using
.SH "SYNOPSIS"
.HP \w'struct\ inode\ *\ d_backing_inode('u
.BI "struct inode * d_backing_inode(const\ struct\ dentry\ *\ " "upper" ");"
.SH "ARGUMENTS"
.PP
\fIconst struct dentry * upper\fR
.RS 4
The upper layer
.RE
.SH "DESCRIPTION"
.PP
This is the helper that should be used to get at the inode that will be used if this dentry were to be opened as a file\&. The inode may be on the upper dentry or it may be on a lower dentry pinned by the upper\&.
.PP
Normal filesystems should not use this to access their own inodes\&.
.SH "COPYRIGHT"
.br