'\" t
.\"     Title: vfs_unlink
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: January 2017
.\"    Manual: The Linux VFS
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "VFS_UNLINK" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "The Linux VFS"
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.SH "NAME"
vfs_unlink \- unlink a filesystem object
.SH "SYNOPSIS"
.HP \w'int\ vfs_unlink('u
.BI "int vfs_unlink(struct\ inode\ *\ " "dir" ", struct\ dentry\ *\ " "dentry" ", struct\ inode\ **\ " "delegated_inode" ");"
.SH "ARGUMENTS"
.PP
\fIdir\fR
.RS 4
parent directory
.RE
.PP
\fIdentry\fR
.RS 4
victim
.RE
.PP
\fIdelegated_inode\fR
.RS 4
returns victim inode, if the inode is delegated\&.
.RE
.SH "DESCRIPTION"
.PP
The caller must hold dir\->i_mutex\&.
.PP
If vfs_unlink discovers a delegation, it will return \-EWOULDBLOCK and return a reference to the inode in delegated_inode\&. The caller should then break the delegation on that inode and retry\&. Because breaking a delegation may take a long time, the caller should drop dir\->i_mutex before doing so\&.
.PP
Alternatively, a caller may pass NULL for delegated_inode\&. This may be appropriate for callers that expect the underlying filesystem not to be NFS exported\&.
.SH "COPYRIGHT"
.br