Manual Pages  — BUF_ISLOCKED

BUF_ISLOCKED – returns the state of the lock linked to the buffer

SYNOPSIS DESCRIPTION SEE ALSO AUTHORS

#include <sys/param.h>

#include <sys/systm.h>

#include <sys/uio.h>

#include <sys/bio.h>

#include <sys/buf.h>

int
BUF_ISLOCKED(struct buf *bp);

The BUF_ISLOCKED() function returns the status of the lock linked to the buffer in relation to curthread.

It can return:

LK_EXCLUSIVE
	An exclusive lock is held by curthread.
LK_EXCLOTHER
	An exclusive lock is held by someone other than curthread.
LK_SHARED	A shared lock is held.
0	The lock is not held by anyone.

This manual page was written by Attilio Rao <Mt attilio@FreeBSD.org>.