vn_isdisk(9)

NAME

vn_isdisk - checks if a vnode represents a disk

SYNOPSIS

#include <sys/param.h>
#include <sys/vnode.h>
int
vn_isdisk(struct vnode *vp, int *errp);

DESCRIPTION

The vn_isdisk() function checks to see if vp represents a

disk. In order
for vp to be a disk, it must be a character device, v_rdev

must be valid,
and the cdevsw entry's flags must have D_DISK set.

Its arguments are:

vp The vnode to check.

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 errp will contain the error number.

AUTHORS

This manual page was written by Chad David <davidc@ac

ns.ab.ca>.

BSD July 9, 2001

BSD