'\" t
.\"     Title: d_validate
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.78.1 <http://docbook.sf.net/>
.\"      Date: May 2018
.\"    Manual: The Linux VFS
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "D_VALIDATE" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "The Linux VFS"
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.SH "NAME"
d_validate \- verify dentry provided from insecure source (deprecated)
.SH "SYNOPSIS"
.HP \w'int\ d_validate('u
.BI "int d_validate(struct\ dentry\ *\ " "dentry" ", struct\ dentry\ *\ " "dparent" ");"
.SH "ARGUMENTS"
.PP
\fIdentry\fR
.RS 4
The dentry alleged to be valid child of
\fIdparent\fR
.RE
.PP
\fIdparent\fR
.RS 4
The parent dentry (known to be valid)
.RE
.SH "DESCRIPTION"
.PP
An insecure source has sent us a dentry, here we verify it and
\fBdget\fR
it\&. This is used by ncpfs in its readdir implementation\&. Zero is returned in the dentry is invalid\&.
.PP
This function is slow for big directories, and deprecated, do not use it\&.
.SH "COPYRIGHT"
.br