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| 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
TheBUF_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 <davidc@acns.ab.ca>.| July 9, 2001 | FreeBSD 13.1-RELEASE |
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