'\" t
.\"     Title: inode_permission
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: July 2017
.\"    Manual: The Linux VFS
.\"    Source: Kernel Hackers Manual 4.11.6
.\"  Language: English
.\"
.TH "INODE_PERMISSION" "9" "July 2017" "Kernel Hackers Manual 4\&.11\&" "The Linux VFS"
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.SH "NAME"
inode_permission \- Check for access rights to a given inode
.SH "SYNOPSIS"
.HP \w'int\ inode_permission('u
.BI "int inode_permission(struct\ inode\ *\ " "inode" ", int\ " "mask" ");"
.SH "ARGUMENTS"
.PP
\fIstruct inode * inode\fR
.RS 4
Inode to check permission on
.RE
.PP
\fIint mask\fR
.RS 4
Right to check for (\fBMAY_READ\fR,
\fBMAY_WRITE\fR,
\fBMAY_EXEC\fR)
.RE
.SH "DESCRIPTION"
.PP
Check for read/write/execute permissions on an inode\&. We use fs[ug]id for this, letting us set arbitrary permissions for filesystem access without changing the
\(lqnormal\(rq
UIDs which are used for other things\&.
.PP
When checking for MAY_APPEND, MAY_WRITE must also be set in
\fImask\fR\&.
.SH "COPYRIGHT"
.br