Kill handrolled buffercache and use vfs_bio from the kernel. This is
mostly to get the flag jungle in sync with the kernel.
This commit is contained in:
pooka
parent
3340382aec
commit
243a4686b8
@ -1,4 +1,4 @@
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# $NetBSD: Makefile,v 1.8 2007/08/14 13:24:34 pooka Exp $
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# $NetBSD: Makefile,v 1.9 2007/08/14 13:54:14 pooka Exp $
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#
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.include <bsd.own.mk>
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@ -7,10 +7,11 @@
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LIB= rump
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.PATH: ${NETBSDSRCDIR}/sys/kern ${NETBSDSRCDIR}/sys/lib/libkern \
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${NETBSDSRCDIR}/sys/conf ${NETBSDSRCDIR}/sys/dev
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${NETBSDSRCDIR}/sys/conf ${NETBSDSRCDIR}/sys/dev \
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${NETBSDSRCDIR}/sys/miscfs/syncfs
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# implements something
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SRCS= rump.c buffercache.c emul.c vfs.c genfs.c vm.c pool.c specfs.c
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SRCS= rump.c emul.c vfs.c genfs.c vm.c pool.c specfs.c
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# just stubs
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SRCS+= fstrans_stub.c kauth_stub.c lock_stub.c misc_stub.c \
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@ -18,8 +19,9 @@ SRCS+= fstrans_stub.c kauth_stub.c lock_stub.c misc_stub.c \
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# sys/kern
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SRCS+= clock_subr.c param.c subr_hash.c subr_prf_bitmask.c \
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subr_specificdata.c subr_time.c subr_xxx.c vfs_init.c \
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vfs_cache.c vfs_subr2.c vnode_if.c param.c vfs_vnops.c
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subr_specificdata.c subr_time.c subr_xxx.c sync_subr.c \
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vfs_bio.c vfs_cache.c vfs_vnops.c vfs_init.c vfs_subr2.c \
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vnode_if.c param.c
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# src/lib/libkern
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SRCS+= __assert.c scanc.c skpc.c
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@ -1,201 +0,0 @@
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/* $NetBSD: buffercache.c,v 1.3 2007/08/09 09:11:57 pooka Exp $ */
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/*
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* Copyright (c) 2007 Antti Kantee. All Rights Reserved.
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*
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* Development of this software was supported by Google Summer of Code.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/buf.h>
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#include <sys/vnode.h>
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#include <sys/mount.h>
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#include <sys/queue.h>
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#include "rumpuser.h"
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#define BQUEUES 3
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struct bqueue {
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TAILQ_HEAD(,buf) bq_queue;
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uint64_t bq_bytes;
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} bufqueues[BQUEUES];
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int
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bread(struct vnode *vp, daddr_t blkno, int size, struct kauth_cred *cred,
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struct buf **bpp)
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{
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struct buf *bp;
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bp = getblk(vp, blkno, size, 0, 0);
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bp->b_flags = B_READ;
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VOP_STRATEGY(vp, bp);
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bp->b_flags = B_BUSY;
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*bpp = bp;
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return 0;
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}
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int
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breadn(struct vnode *vp, daddr_t blkno, int size, daddr_t *rablks,
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int *rasizes, int nrablks, struct kauth_cred *cred, struct buf **bpp)
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{
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return bread(vp, blkno, size, cred, bpp);
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}
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int
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bwrite(struct buf *bp)
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{
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bp->b_flags &= ~B_READ;
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VOP_STRATEGY(bp->b_vp, bp);
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brelse(bp);
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return 0;
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}
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void
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bawrite(struct buf *bp)
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{
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bwrite(bp);
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}
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void
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bdwrite(struct buf *bp)
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{
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bwrite(bp);
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}
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void
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brelse(struct buf *bp)
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{
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rumpuser_free(bp->b_data);
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rumpuser_free(bp);
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}
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struct buf *
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getblk(struct vnode *vp, daddr_t blkno, int size, int slpflag, int slptimeo)
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{
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struct buf *bp;
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bp = rumpuser_malloc(sizeof(struct buf), 0);
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memset(bp, 0x55, sizeof(struct buf));
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bp->b_data = rumpuser_malloc(size, 0);
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bp->b_blkno = bp->b_lblkno = blkno;
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bp->b_bcount = bp->b_bufsize = size;
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bp->b_vp = vp;
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return bp;
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}
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struct buf *
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incore(struct vnode *vp, daddr_t blkno)
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{
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return NULL;
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}
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void
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allocbuf(struct buf *bp, int size, int preserve)
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{
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bp->b_bcount = bp->b_bufsize = size;
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bp->b_data = rumpuser_realloc(bp->b_data, size, 0);
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}
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void
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biodone(struct buf *bp)
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{
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/* nada */
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}
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/* everything is always instantly done */
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int
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biowait(struct buf *bp)
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{
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return 0;
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}
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struct buf *
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getiobuf()
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{
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return rumpuser_malloc(sizeof(struct buf), 0);
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}
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struct buf *
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getiobuf_nowait()
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{
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return rumpuser_malloc(sizeof(struct buf), 1);
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}
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void
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putiobuf(struct buf *bp)
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{
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rumpuser_free(bp);
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}
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void
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bgetvp(struct vnode *vp, struct buf *bp)
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{
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if (bp->b_vp)
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panic("%s: vp already set", __func__);
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bp->b_vp = vp;
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}
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void
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bremfree(struct buf *bp)
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{
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return;
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}
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void
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brelvp(struct buf *bp)
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{
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if (bp->b_vp == NULL)
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panic("%s: vp not set", __func__);
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bp->b_vp = NULL;
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}
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void
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reassignbuf(struct buf *bp, struct vnode *vp)
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{
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panic("%s: not implemented", __func__);
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}
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@ -1,4 +1,4 @@
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/* $NetBSD: emul.c,v 1.7 2007/08/13 13:51:39 pooka Exp $ */
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/* $NetBSD: emul.c,v 1.8 2007/08/14 13:54:15 pooka Exp $ */
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/*
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* Copyright (c) 2007 Antti Kantee. All Rights Reserved.
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@ -44,6 +44,8 @@
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#include <machine/cpu.h>
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#include <machine/stdarg.h>
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#include <uvm/uvm_map.h>
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#include "rump.h"
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#include "rumpuser.h"
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@ -55,6 +57,8 @@ struct lwp lwp0;
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struct vnode *rootvp;
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struct device *root_device;
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dev_t rootdev;
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struct vm_map *kernel_map;
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int physmem;
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MALLOC_DEFINE(M_MOUNT, "mount", "vfs mount struct");
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MALLOC_DEFINE(M_UFSMNT, "UFS mount", "UFS mount structure");
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@ -277,11 +281,11 @@ bdev_strategy(struct buf *bp)
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panic("%s: not supported", __func__);
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}
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void
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vn_syncer_remove_from_worklist(struct vnode *vp)
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int
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bdev_type(dev_t dev)
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{
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/* nada */
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return D_DISK;
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}
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int
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@ -1,4 +1,4 @@
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/* $NetBSD: genfs.c,v 1.13 2007/08/13 13:51:39 pooka Exp $ */
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/* $NetBSD: genfs.c,v 1.14 2007/08/14 13:54:15 pooka Exp $ */
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/*
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* Copyright (c) 2007 Antti Kantee. All Rights Reserved.
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@ -192,11 +192,13 @@ genfs_getpages(void *v)
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continue;
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}
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memset(&buf, 0, sizeof(buf));
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buf.b_data = tmpbuf + bufoff;
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buf.b_bcount = xfersize;
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buf.b_blkno = bn;
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buf.b_lblkno = 0;
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buf.b_flags = B_READ;
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buf.b_vp = vp;
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VOP_STRATEGY(devvp, &buf);
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if (buf.b_error)
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@ -265,8 +267,6 @@ genfs_do_putpages(struct vnode *vp, off_t startoff, off_t endoff, int flags,
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int bshift = vp->v_mount->mnt_fs_bshift;
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int bsize = 1 << bshift;
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GOP_SIZE(vp, vp->v_writesize, &eof, 0);
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restart:
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/* check if all pages are clean */
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smallest = -1;
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@ -287,6 +287,8 @@ genfs_do_putpages(struct vnode *vp, off_t startoff, off_t endoff, int flags,
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return 0;
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}
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GOP_SIZE(vp, vp->v_writesize, &eof, 0);
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/* we need to flush */
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for (curoff = smallest; curoff < eof; curoff += PAGE_SIZE) {
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if (curoff - smallest >= MAXPHYS)
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@ -306,6 +308,8 @@ genfs_do_putpages(struct vnode *vp, off_t startoff, off_t endoff, int flags,
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daddr_t bn, lbn;
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int run, error;
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memset(&buf, 0, sizeof(buf));
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lbn = (smallest + bufoff) >> bshift;
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error = VOP_BMAP(vp, lbn, &devvp, &bn, &run);
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if (error)
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@ -332,7 +336,9 @@ genfs_do_putpages(struct vnode *vp, off_t startoff, off_t endoff, int flags,
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buf.b_blkno = bn + (((smallest+bufoff)&(bsize-1))>>DEV_BSHIFT);
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buf.b_data = databuf + bufoff;
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buf.b_flags = B_WRITE;
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buf.b_vp = vp;
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vp->v_numoutput++;
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VOP_STRATEGY(devvp, &buf);
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if (buf.b_error)
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panic("%s: VOP_STRATEGY lazy bum %d",
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@ -1,4 +1,4 @@
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/* $NetBSD: misc_stub.c,v 1.2 2007/08/09 08:56:45 pooka Exp $ */
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/* $NetBSD: misc_stub.c,v 1.3 2007/08/14 13:54:15 pooka Exp $ */
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||||
/*
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* Copyright (c) 2007 Antti Kantee. All Rights Reserved.
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@ -71,3 +71,10 @@ sysctl_lookup(SYSCTLFN_ARGS)
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return ENOSYS;
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}
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int
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sysctl_query(SYSCTLFN_ARGS)
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{
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return ENOSYS;
|
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}
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1
sys/rump/librump/rumpkern/opt/fs_ffs.h
Normal file
1
sys/rump/librump/rumpkern/opt/fs_ffs.h
Normal file
@ -0,0 +1 @@
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/* $NetBSD: fs_ffs.h,v 1.1 2007/08/14 13:54:15 pooka Exp $ */
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1
sys/rump/librump/rumpkern/opt/opt_bufcache.h
Normal file
1
sys/rump/librump/rumpkern/opt/opt_bufcache.h
Normal file
@ -0,0 +1 @@
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/* $NetBSD: opt_bufcache.h,v 1.1 2007/08/14 13:54:15 pooka Exp $ */
|
||||
1
sys/rump/librump/rumpkern/opt/opt_softdep.h
Normal file
1
sys/rump/librump/rumpkern/opt/opt_softdep.h
Normal file
@ -0,0 +1 @@
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/* $NetBSD: opt_softdep.h,v 1.1 2007/08/14 13:54:15 pooka Exp $ */
|
||||
@ -1,4 +1,4 @@
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||||
/* $NetBSD: pool.c,v 1.1 2007/08/05 22:28:09 pooka Exp $ */
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||||
/* $NetBSD: pool.c,v 1.2 2007/08/14 13:54:15 pooka Exp $ */
|
||||
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||||
/*
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||||
* Copyright (c) 2007 Antti Kantee. All Rights Reserved.
|
||||
@ -109,6 +109,20 @@ pool_put(struct pool *pp, void *item)
|
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rumpuser_free(item);
|
||||
}
|
||||
|
||||
void
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||||
pool_sethiwat(struct pool *pp, int n)
|
||||
{
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
void
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||||
pool_setlowat(struct pool *pp, int n)
|
||||
{
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
/* XXX: for tmpfs, shouldn't be here */
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void *pool_page_alloc_nointr(struct pool *, int);
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void pool_page_free_nointr(struct pool *, void *);
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||||
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||||
@ -1,4 +1,4 @@
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||||
/* $NetBSD: rump.c,v 1.4 2007/08/08 14:09:07 pooka Exp $ */
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||||
/* $NetBSD: rump.c,v 1.5 2007/08/14 13:54:15 pooka Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 2007 Antti Kantee. All Rights Reserved.
|
||||
@ -75,6 +75,7 @@ rump_init()
|
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rump_proc.p_limit = &rump_limits;
|
||||
|
||||
vfsinit();
|
||||
bufinit();
|
||||
|
||||
rumpuser_gethostname(hostname, MAXHOSTNAMELEN, &error);
|
||||
hostnamelen = strlen(hostname);
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
/* $NetBSD: specfs.c,v 1.4 2007/08/14 13:24:07 pooka Exp $ */
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||||
/* $NetBSD: specfs.c,v 1.5 2007/08/14 13:54:15 pooka Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 2007 Antti Kantee. All Rights Reserved.
|
||||
@ -46,17 +46,20 @@ static int rump_specopen(void *);
|
||||
static int rump_specioctl(void *);
|
||||
static int rump_specclose(void *);
|
||||
static int rump_specfsync(void *);
|
||||
static int rump_specputpages(void *);
|
||||
static int rump_specstrategy(void *);
|
||||
|
||||
int (**spec_vnodeop_p)(void *);
|
||||
const struct vnodeopv_entry_desc rumpspec_vnodeop_entries[] = {
|
||||
{ &vop_default_desc, vn_default_error },
|
||||
{ &vop_bwrite_desc, vn_bwrite }, /* bwrite */
|
||||
{ &vop_lock_desc, genfs_lock }, /* lock */
|
||||
{ &vop_unlock_desc, genfs_unlock }, /* unlock */
|
||||
{ &vop_open_desc, rump_specopen }, /* open */
|
||||
{ &vop_close_desc, rump_specclose }, /* close */
|
||||
{ &vop_ioctl_desc, rump_specioctl }, /* ioctl */
|
||||
{ &vop_fsync_desc, rump_specfsync }, /* fsync */
|
||||
{ &vop_putpages_desc, rump_specputpages }, /* putpages */
|
||||
{ &vop_strategy_desc, rump_specstrategy }, /* strategy */
|
||||
{ NULL, NULL }
|
||||
};
|
||||
@ -149,6 +152,25 @@ rump_specclose(void *v)
|
||||
|
||||
int
|
||||
rump_specfsync(void *v)
|
||||
{
|
||||
struct vop_fsync_args /* {
|
||||
struct vnode *a_vp;
|
||||
kauth_cred_t a_cred;
|
||||
int a_flags;
|
||||
off_t a_offlo;
|
||||
off_t a_offhi;
|
||||
struct lwp *a_l;
|
||||
} */ *ap = v;
|
||||
struct vnode *vp = ap->a_vp;
|
||||
|
||||
assert(vp->v_type == VBLK);
|
||||
vflushbuf(vp, 1);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
rump_specputpages(void *v)
|
||||
{
|
||||
|
||||
return 0;
|
||||
@ -187,6 +209,7 @@ rump_specstrategy(void *v)
|
||||
bp->b_error = error;
|
||||
else
|
||||
bp->b_resid = bp->b_bcount - rv;
|
||||
biodone(bp);
|
||||
|
||||
return error;
|
||||
}
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
/* $NetBSD: vfs.c,v 1.9 2007/08/13 13:51:39 pooka Exp $ */
|
||||
/* $NetBSD: vfs.c,v 1.10 2007/08/14 13:54:15 pooka Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 2007 Antti Kantee. All Rights Reserved.
|
||||
@ -156,6 +156,18 @@ vgone(struct vnode *vp)
|
||||
|
||||
}
|
||||
|
||||
void
|
||||
vholdl(struct vnode *vp)
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
void
|
||||
holdrelel(struct vnode *vp)
|
||||
{
|
||||
|
||||
}
|
||||
|
||||
int
|
||||
vrecycle(struct vnode *vp, struct simplelock *inter_lkp, struct lwp *l)
|
||||
{
|
||||
@ -170,37 +182,6 @@ vrecycle(struct vnode *vp, struct simplelock *inter_lkp, struct lwp *l)
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
vinvalbuf(struct vnode *vp, int flags, kauth_cred_t cred, struct lwp *l,
|
||||
int slpflag, int slptimeo)
|
||||
{
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
vtruncbuf(struct vnode *vp, daddr_t lbn, int splflag, int slptimeo)
|
||||
{
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void
|
||||
vflushbuf(struct vnode *vp, int sync)
|
||||
{
|
||||
|
||||
(void) VOP_PUTPAGES(vp, 0, 0,
|
||||
PGO_CLEANIT | PGO_ALLPAGES | sync ? PGO_SYNCIO : 0);
|
||||
}
|
||||
|
||||
int
|
||||
vn_bwrite(void *v)
|
||||
{
|
||||
struct vop_bwrite_args *ap = v;
|
||||
|
||||
return bwrite(ap->a_bp);
|
||||
}
|
||||
|
||||
int
|
||||
vcount(struct vnode *vp)
|
||||
{
|
||||
@ -396,10 +377,3 @@ vfs_mountedon(struct vnode *vp)
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void
|
||||
vn_initialize_syncerd()
|
||||
{
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
@ -1,4 +1,4 @@
|
||||
/* $NetBSD: vm.c,v 1.11 2007/08/13 13:51:39 pooka Exp $ */
|
||||
/* $NetBSD: vm.c,v 1.12 2007/08/14 13:54:15 pooka Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 2007 Antti Kantee. All Rights Reserved.
|
||||
@ -467,3 +467,34 @@ kmem_free(void *p, size_t size)
|
||||
|
||||
rumpuser_free(p);
|
||||
}
|
||||
|
||||
/*
|
||||
* UVM km
|
||||
*/
|
||||
|
||||
vaddr_t
|
||||
uvm_km_alloc(struct vm_map *map, vsize_t size, vsize_t align, uvm_flag_t flags)
|
||||
{
|
||||
void *rv;
|
||||
|
||||
rv = rumpuser_malloc(size, flags & (UVM_KMF_CANFAIL | UVM_KMF_NOWAIT));
|
||||
if (rv && flags & UVM_KMF_ZERO)
|
||||
memset(rv, 0, size);
|
||||
|
||||
return (vaddr_t)rv;
|
||||
}
|
||||
|
||||
void
|
||||
uvm_km_free(struct vm_map *map, vaddr_t vaddr, vsize_t size, uvm_flag_t flags)
|
||||
{
|
||||
|
||||
rumpuser_free((void *)vaddr);
|
||||
}
|
||||
|
||||
struct vm_map *
|
||||
uvm_km_suballoc(struct vm_map *map, vaddr_t *minaddr, vaddr_t *maxaddr,
|
||||
vsize_t size, int pageable, bool fixed, struct vm_map_kernel *submap)
|
||||
{
|
||||
|
||||
return (struct vm_map *)417416;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user