'\" t
.\"     Title: blk_integrity_compare
.\"    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: Block Devices
.\"    Source: Kernel Hackers Manual 3.16.56
.\"  Language: English
.\"
.TH "BLK_INTEGRITY_COMPAR" "9" "May 2018" "Kernel Hackers Manual 3\&.16\&" "Block Devices"
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.SH "NAME"
blk_integrity_compare \- Compare integrity profile of two disks
.SH "SYNOPSIS"
.HP \w'int\ blk_integrity_compare('u
.BI "int blk_integrity_compare(struct\ gendisk\ *\ " "gd1" ", struct\ gendisk\ *\ " "gd2" ");"
.SH "ARGUMENTS"
.PP
\fIgd1\fR
.RS 4
Disk to compare
.RE
.PP
\fIgd2\fR
.RS 4
Disk to compare
.RE
.SH "DESCRIPTION"
.PP
Meta\-devices like DM and MD need to verify that all sub\-devices use the same integrity format before advertising to upper layers that they can send/receive integrity metadata\&. This function can be used to check whether two gendisk devices have compatible integrity formats\&.
.SH "COPYRIGHT"
.br