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Man Pages


Manual Reference Pages  -  BUF_ISLOCKED (9)

NAME

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

CONTENTS

Synopsis
Description
See Also
Authors

SYNOPSIS


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

DESCRIPTION

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.

SEE ALSO

lockstatus(9), buf(9), BUF_LOCK(9), BUF_UNLOCK(9), lockmgr(9)

AUTHORS

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