vn_isdisk (9)

Leading comments

Copyright (C) 2001 Chad David <davidc@acns.ab.ca>. All rights reserved.

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(The comments found at the beginning of the groff file "man9/vn_isdisk.9freebsd".)

NAME

vn_isdisk - checks if a vnode represents a disk

SYNOPSIS

In sys/param.h In sys/vnode.h Ft int Fn vn_isdisk struct vnode *vp int *errp

DESCRIPTION

The Fn vn_isdisk function checks to see if Fa vp represents a disk. In order for Fa vp to be a disk, it must be a character device, v_rdev must be valid, and the Vt cdevsw entry's flags must have D_DISK set.

Its arguments are:

Fa vp

The vnode to check.

Fa errp

An integer pointer to store the error number in if the call fails.

RETURN VALUES

If the vnode represents a disk, 1 is returned; otherwise, 0 is returned and Fa errp will contain the error number.

AUTHORS

This manual page was written by An Chad David Aq davidc@acns.ab.ca .