usr/src/sys/ufs/lfs/lfs_bio.c

/*
 * Copyright (c) 1982, 1986, 1989 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 *
 *      @(#)lfs_bio.c   5.1 (Berkeley) %G%
 */

#include "param.h"
#include "proc.h"
#include "buf.h"
#include "vnode.h"
#include "specdev.h"
#include "mount.h"
#include "trace.h"
#include "resourcevar.h"
#include "lfs.h"

/*
 * lfs_bwrite --
 *      LFS version of bawrite, bdwrite, bwrite.  Set the delayed write flag
 *      and use reassignbuf to move the buffer from the clean list to the
 *      dirty one.  Then unlock the buffer.
 */
lfs_bwrite(bp)
        register BUF *bp;
{
        curproc->p_stats->p_ru.ru_oublock++;    /* XXX: no one paid yet */
        bp->b_flags &= ~(B_READ | B_DONE | B_ERROR | B_DELWRI);
        bp->b_flags |= B_DELWRI;
        reassignbuf(bp, bp->b_vp);              /* XXX: do this inline */
        brelse(bp);
}