diff options
| -rw-r--r-- | sys/uvm/uvm_swap.c | 62 |
1 files changed, 61 insertions, 1 deletions
diff --git a/sys/uvm/uvm_swap.c b/sys/uvm/uvm_swap.c index 225286a9977..8f205b7655e 100644 --- a/sys/uvm/uvm_swap.c +++ b/sys/uvm/uvm_swap.c @@ -1,4 +1,4 @@ -/* $OpenBSD: uvm_swap.c,v 1.4 1999/06/04 00:15:42 art Exp $ */ +/* $OpenBSD: uvm_swap.c,v 1.5 1999/06/04 00:23:17 art Exp $ */ /* $NetBSD: uvm_swap.c,v 1.23 1998/12/26 06:25:59 marc Exp $ */ /* @@ -264,6 +264,8 @@ static void uvm_swap_aiodone __P((struct uvm_aiodesc *)); static void uvm_swap_bufdone __P((struct buf *)); static int uvm_swap_io __P((struct vm_page **, int, int, int)); +static void swapmount __P((void)); + /* * uvm_swap_init: init the swap system data structures and locks * @@ -1948,7 +1950,65 @@ uvm_swap_aiodone(aio) splx(s); /* + * Setup the initial swap partition + */ + swapmount(); + + /* * done! */ } +static void +swapmount() +{ + struct swapdev *sdp; + struct swappri *spp; + struct vnode *vp; + dev_t swap_dev = swdevt[0].sw_dev; + + /* + * No locking here since we happen to know that we will just be called + * once before any other process has forked. + */ + + if (swap_dev == NODEV) { + printf("swapmount: no device\n"); + return; + } + + if (bdevvp(swap_dev, &vp)) { + printf("swapmount: no device 2\n"); + return; + } + + sdp = malloc(sizeof(*sdp), M_VMSWAP, M_WAITOK); + spp = malloc(sizeof(*spp), M_VMSWAP, M_WAITOK); + bzero(sdp, sizeof(*sdp)); + + sdp->swd_flags = SWF_FAKE; + sdp->swd_dev = swap_dev; + sdp->swd_vp = vp; + swaplist_insert(sdp, spp, 0); + sdp->swd_pathlen = strlen("swap_device") + 1; + sdp->swd_path = malloc(sdp->swd_pathlen, M_VMSWAP, M_WAITOK); + if (copystr("swap_device", sdp->swd_path, sdp->swd_pathlen, 0)) + panic("swapmount: copystr"); + + printf("Adding swap(%d, %d):", major(swap_dev), minor(swap_dev)); + + if (swap_on(curproc, sdp)) { + printf(" failed!\n"); + swaplist_find(vp, 1); + swaplist_trim(); + vput(sdp->swd_vp); + free(sdp->swd_path, M_VMSWAP); + free(sdp, M_VMSWAP); + free(spp, M_VMSWAP); + return; + } + + printf(" ok.\n"); + + VOP_UNLOCK(vp, 0, curproc); +} |