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| BUF_ISLOCKED(9) | FreeBSD Kernel Developer's Manual | BUF_ISLOCKED(9) |
NAME
BUF_ISLOCKED —
returns the state of the lock linked to the buffer
SYNOPSIS
#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);
DESCRIPTION
TheBUF_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
buf(9), BUF_LOCK(9), BUF_UNLOCK(9), lockmgr(9), lockstatus(9)AUTHORS
This manual page was written by Attilio Rao <attilio@FreeBSD.org>.| January 22, 2008 | FreeBSD 13.1-RELEASE |
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