'\" t
.\"     Title: bdev_dax_supported
.\"    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 "BDEV_DAX_SUPPORTED" "9" "January 2017" "Kernel Hackers Manual 4\&.8\&." "The Linux VFS"
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.SH "NAME"
bdev_dax_supported \- Check if the device supports dax for filesystem
.SH "SYNOPSIS"
.HP \w'int\ bdev_dax_supported('u
.BI "int bdev_dax_supported(struct\ super_block\ *\ " "sb" ", int\ " "blocksize" ");"
.SH "ARGUMENTS"
.PP
\fIsb\fR
.RS 4
The superblock of the device
.RE
.PP
\fIblocksize\fR
.RS 4
The block size of the device
.RE
.SH "DESCRIPTION"
.PP
This is a library function for filesystems to check if the block device can be mounted with dax option\&.
.SH "RETURN"
.PP
negative errno if unsupported, 0 if supported\&.
.SH "COPYRIGHT"
.br