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Make sure the damned buffer heads are initialized...

This commit is contained in:
pk 1997-12-01 16:33:15 +00:00
parent eefde8bdcd
commit d4a6f93147
1 changed files with 12 additions and 6 deletions
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18
sys/vm/vm_swap.c
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@ -1,4 +1,4 @@
/* $NetBSD: vm_swap.c,v 1.49 1997/11/29 00:35:43 pk Exp $ */
/* $NetBSD: vm_swap.c,v 1.50 1997/12/01 16:33:15 pk Exp $ */
/*
* Copyright (c) 1995, 1996, 1997 Matthew R. Green
@ -547,7 +547,8 @@ sys_swapctl(p, v, retval)
sdp = (struct swapdev *)
malloc(sizeof *sdp, M_VMSWAP, M_WAITOK);
sdp->swd_inuse = sdp->swd_flags = 0;
bzero(sdp, sizeof(*sdp));
sdp->swd_vp = vp;
sdp->swd_dev = (vp->v_type == VBLK) ? vp->v_rdev : NODEV;
@ -1257,22 +1258,27 @@ sw_reg_iodone(bp)
pbp->b_flags |= B_ERROR;
pbp->b_error = vnx->vx_error;
if ((vnx->vx_flags & VX_BUSY) == 0 && vnx->vx_pending == 0) {
#ifdef SWAPDEBUG
if (vmswapdebug & VMSDB_SWFLOW)
printf("swiodone: pbp %p iodone: error %d\n",
pbp, vnx->vx_error);
#endif
putvndxfer(vnx);
biodone(pbp);
}
}
if (pbp->b_resid == 0) {
} else if (pbp->b_resid == 0) {
#ifdef DIAGNOSTIC
if (vnx->vx_pending != 0)
panic("swiodone: vnx pending: %d", vnx->vx_pending);
#endif
if ((vnx->vx_flags & VX_BUSY) == 0) {
putvndxfer(vnx);
#ifdef SWAPDEBUG
if (vmswapdebug & VMSDB_SWFLOW)
printf("swiodone: pbp %p iodone\n", pbp);
#endif
putvndxfer(vnx);
biodone(pbp);
}
}