buf_lock(9)

NAME

BUF_LOCK - locks a buffer

SYNOPSIS

#include <sys/param.h>
#include <sys/systm.h>
#include <sys/uio.h>
#include <sys/bio.h>
#include <sys/buf.h>
int
BUF_LOCK(struct buf *bp, int locktype);

DESCRIPTION

The BUF_LOCK() function locks the given buffer. If the lock

is already
held this call will block until it can acquire the lock un

less LK_NOWAIT
is set.

Its arguments are:

bp The buffer to lock.

locktype Flags controlling the type of lock. See lock

mgr(9) for

details.

RETURN VALUES

A value of 0 is returned upon success. See lockmgr(9) for

information on
non-zero return values.

SEE ALSO

buf(9), BUF_TIMELOCK(9), BUF_UNLOCK(9), lockmgr(9)

AUTHORS

This manual page was written by Chad David <davidc@ac

ns.ab.ca>.

BSD July 9, 2001

BSD