BUF_ISLOCKED (9)

Leading comments

Copyright (C) 2008 Attilio Rao <attilio@FreeBSD.org>
All rights reserved.

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

NAME

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

SYNOPSIS

In sys/param.h In sys/systm.h In sys/uio.h In sys/bio.h In sys/buf.h Ft int Fn BUF_ISLOCKED struct buf *bp

DESCRIPTION

The Fn 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.

SEE ALSO

lockstatus(9), buf(9), BUF_LOCK9, BUF_UNLOCK9, lockmgr(9)

AUTHORS

This manual page was written by An Attilio Rao Aq attilio@FreeBSD.org .