'\" t
.\"     Title: fence_init
.\"    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: Device drivers infrastructure
.\"    Source: Kernel Hackers Manual 4.8.15
.\"  Language: English
.\"
.TH "FENCE_INIT" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "Device drivers infrastructure"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el       .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
fence_init \- Initialize a custom fence\&.
.SH "SYNOPSIS"
.HP \w'void\ fence_init('u
.BI "void fence_init(struct\ fence\ *\ " "fence" ", const\ struct\ fence_ops\ *\ " "ops" ", spinlock_t\ *\ " "lock" ", u64\ " "context" ", unsigned\ " "seqno" ");"
.SH "ARGUMENTS"
.PP
\fIfence\fR
.RS 4
[in] the fence to initialize
.RE
.PP
\fIops\fR
.RS 4
[in] the fence_ops for operations on this fence
.RE
.PP
\fIlock\fR
.RS 4
[in] the irqsafe spinlock to use for locking this fence
.RE
.PP
\fIcontext\fR
.RS 4
[in] the execution context this fence is run on
.RE
.PP
\fIseqno\fR
.RS 4
[in] a linear increasing sequence number for this context
.RE
.SH "DESCRIPTION"
.PP
Initializes an allocated fence, the caller doesn\*(Aqt have to keep its refcount after committing with this fence, but it will need to hold a refcount again if fence_ops\&.enable_signaling gets called\&. This can be used for other implementing other types of fence\&.
.PP
context and seqno are used for easy comparison between fences, allowing to check which fence is later by simply using fence_later\&.
.SH "COPYRIGHT"
.br