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VN_ISDISK(9) 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>.
July 9, 2001 Linux 4.19.0-10-amd64