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 <davidc@acns.ab.ca>.

Debian                                            July 9, 2001                                       BUF_LOCK(9)