BUF_ISLOCKED.9freebsd

Langue: en

Version: 365119 (ubuntu - 25/10/10)

Section: 9 (Appels noyau Linux)


BSD mandoc

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 .