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BUF_LOCK
BUF_LOCK(9) FreeBSD Kernel Developer's Manual 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 unless LK_NOWAIT
is set.
Its arguments are:
bp The buffer to lock.
locktype Flags controlling the type of lock. See lockmgr(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 <davidcATacns.ca>.
FreeBSD 6.2 July 9, 2001 FreeBSD 6.2
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