VN_ISDISK(9) BSD Kernel Developer's Manual 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@acns.ab.ca>.
BSD
July 9, 2001 BSD
