1 files changed, 0 insertions, 635 deletions

diff --git a/sys/nwfs/nwfs_io.c b/sys/nwfs/nwfs_io.c
deleted file mode 100644
index 4b105c6..0000000
--- a/sys/nwfs/nwfs_io.c
+++ /dev/null
@@ -1,635 +0,0 @@
-/*
- * Copyright (c) 1999, Boris Popov
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *    This product includes software developed by Boris Popov.
- * 4. Neither the name of the author nor the names of any co-contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * $FreeBSD$
- *
- */
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/resourcevar.h>	/* defines plimit structure in proc struct */
-#include <sys/kernel.h>
-#include <sys/bio.h>
-#include <sys/buf.h>
-#include <sys/proc.h>
-#include <sys/mount.h>
-#include <sys/namei.h>
-#include <sys/vnode.h>
-#include <sys/dirent.h>
-#include <sys/signalvar.h>
-#include <sys/sysctl.h>
-
-#include <vm/vm.h>
-#include <vm/vm_page.h>
-#include <vm/vm_extern.h>
-#include <vm/vm_object.h>
-#include <vm/vm_pager.h>
-#include <vm/vnode_pager.h>
-
-#include <netncp/ncp.h>
-#include <netncp/ncp_conn.h>
-#include <netncp/ncp_subr.h>
-#include <netncp/ncp_ncp.h>
-
-#include <nwfs/nwfs.h>
-#include <nwfs/nwfs_node.h>
-#include <nwfs/nwfs_subr.h>
-
-static int nwfs_fastlookup = 1;
-
-extern struct linker_set sysctl_vfs_nwfs;
-
-SYSCTL_DECL(_vfs_nwfs);
-SYSCTL_INT(_vfs_nwfs, OID_AUTO, fastlookup, CTLFLAG_RW, &nwfs_fastlookup, 0, "");
-
-
-extern int nwfs_pbuf_freecnt;
-
-#define DE_SIZE	(sizeof(struct dirent))
-#define	NWFS_RWCACHE
-
-static int
-nwfs_readvdir(struct vnode *vp, struct uio *uio, struct ucred *cred) {
-	struct nwmount *nmp = VTONWFS(vp);
-	int error, count, i;
-	struct dirent dp;
-	struct nwnode *np = VTONW(vp);
-	struct nw_entry_info fattr;
-	struct vnode *newvp;
-	struct componentname cn;
-	ncpfid fid;
-
-	np = VTONW(vp);
-	NCPVNDEBUG("dirname='%s'\n",np->n_name);
-	if (uio->uio_resid < DE_SIZE || (uio->uio_offset < 0))
-		return (EINVAL);
-	error = 0;
-	count = 0;
-	i = uio->uio_offset / DE_SIZE; /* offset in directory */
-	if (i == 0) {
-		error = ncp_initsearch(vp, uio->uio_procp, cred);
-		if (error) {
-			NCPVNDEBUG("cannot initialize search, error=%d",error);
-			return( error );
-		}
-	}
-
-	for (; uio->uio_resid >= DE_SIZE; i++) {
-		bzero((char *) &dp, DE_SIZE);
-		dp.d_reclen = DE_SIZE;
-		switch (i) {
-		    case 0:		/* `.' */
-		    case 1:		/* `..' */
-			dp.d_fileno = (i == 0) ? np->n_fid.f_id : np->n_parent.f_id;
-			if (!dp.d_fileno) dp.d_fileno = NWFS_ROOT_INO;
-			dp.d_namlen = i + 1;
-			dp.d_name[0] = '.';
-			dp.d_name[1] = '.';
-			dp.d_name[i + 1] = '\0';
-			dp.d_type = DT_DIR;
-			break;
-		    default:
-			error = ncp_search_for_file_or_subdir(nmp, &np->n_seq, &fattr, uio->uio_procp, cred);
-			if (error && error < 0x80) break;
-			dp.d_fileno = fattr.dirEntNum;
-			dp.d_type = (fattr.attributes & aDIR) ? DT_DIR : DT_REG;
-			dp.d_namlen = fattr.nameLen;
-			bcopy(fattr.entryName, dp.d_name, dp.d_namlen);
-			dp.d_name[dp.d_namlen] = '\0';
-#if 0
-			if (error && eofflag) {
-			/*	*eofflag = 1;*/
-			        break;
-			}
-#endif
-			break;
-		}
-		if (nwfs_fastlookup && !error && i > 1) {
-			fid.f_id = fattr.dirEntNum;
-			fid.f_parent = np->n_fid.f_id;
-			error = nwfs_nget(vp->v_mount, fid, &fattr, vp, &newvp);
-			if (!error) {
-				VTONW(newvp)->n_ctime = VTONW(newvp)->n_vattr.va_ctime.tv_sec;
-				cn.cn_nameptr = dp.d_name;
-				cn.cn_namelen = dp.d_namlen;
-			        cache_enter(vp, newvp, &cn);
-				vput(newvp);
-			} else
-				error = 0;
-		}
-		if (error >= 0x80) {
-		    error = 0;
-		    break;
-		}
-		if ((error = uiomove((caddr_t)&dp, DE_SIZE, uio)))
-			break;
-	}
-
-	uio->uio_offset = i * DE_SIZE;
-	return (error);
-}
-
-int
-nwfs_readvnode(struct vnode *vp, struct uio *uiop, struct ucred *cred) {
-	struct nwmount *nmp = VFSTONWFS(vp->v_mount);
-	struct nwnode *np = VTONW(vp);
-	struct proc *p;
-	struct vattr vattr;
-	int error, biosize;
-
-	if (vp->v_type != VREG && vp->v_type != VDIR) {
-		printf("%s: vn types other than VREG or VDIR are unsupported !\n",__FUNCTION__);
-		return EIO;
-	}
-	if (uiop->uio_resid == 0) return 0;
-	if (uiop->uio_offset < 0) return EINVAL;
-/*	if (uiop->uio_offset + uiop->uio_resid > nmp->nm_maxfilesize)
-		return (EFBIG);*/
-	p = uiop->uio_procp;
-	if (vp->v_type == VDIR) {
-		error = nwfs_readvdir(vp, uiop, cred);
-		return error;
-	}
-	biosize = NWFSTOCONN(nmp)->buffer_size;
-	if (np->n_flag & NMODIFIED) {
-		nwfs_attr_cacheremove(vp);
-		error = VOP_GETATTR(vp, &vattr, cred, p);
-		if (error) return (error);
-		np->n_mtime = vattr.va_mtime.tv_sec;
-	} else {
-		error = VOP_GETATTR(vp, &vattr, cred, p);
-		if (error) return (error);
-		if (np->n_mtime != vattr.va_mtime.tv_sec) {
-			error = nwfs_vinvalbuf(vp, V_SAVE, cred, p, 1);
-			if (error) return (error);
-			np->n_mtime = vattr.va_mtime.tv_sec;
-		}
-	}
-	error = ncp_read(NWFSTOCONN(nmp), &np->n_fh, uiop,cred);
-	return (error);
-}
-
-int
-nwfs_writevnode(vp, uiop, cred, ioflag)
-	struct vnode *vp;
-	struct uio *uiop;
-	struct ucred *cred;
-	int ioflag;
-{
-	struct nwmount *nmp = VTONWFS(vp);
-	struct nwnode *np = VTONW(vp);
-	struct proc *p;
-/*	struct vattr vattr;*/
-	int error = 0;
-
-	if (vp->v_type != VREG) {
-		printf("%s: vn types other than VREG unsupported !\n",__FUNCTION__);
-		return EIO;
-	}
-	NCPVNDEBUG("ofs=%d,resid=%d\n",(int)uiop->uio_offset, uiop->uio_resid);
-	if (uiop->uio_offset < 0) return EINVAL;
-/*	if (uiop->uio_offset + uiop->uio_resid > nmp->nm_maxfilesize)
-		return (EFBIG);*/
-	p = uiop->uio_procp;
-	if (ioflag & (IO_APPEND | IO_SYNC)) {
-		if (np->n_flag & NMODIFIED) {
-			nwfs_attr_cacheremove(vp);
-			error = nwfs_vinvalbuf(vp, V_SAVE, cred, p, 1);
-			if (error) return (error);
-		}
-		if (ioflag & IO_APPEND) {
-		/* We can relay only on local information about file size,
-		 * because until file is closed NetWare will not return
-		 * the correct size. */
-#if notyet
-			nwfs_attr_cacheremove(vp);
-			error = VOP_GETATTR(vp, &vattr, cred, p);
-			if (error) return (error);
-#endif
-			uiop->uio_offset = np->n_size;
-		}
-	}
-	if (uiop->uio_resid == 0) return 0;
-	if (p && uiop->uio_offset + uiop->uio_resid > p->p_rlimit[RLIMIT_FSIZE].rlim_cur) {
-		PROC_LOCK(p);
-		psignal(p, SIGXFSZ);
-		PROC_UNLOCK(p);
-		return (EFBIG);
-	}
-	error = ncp_write(NWFSTOCONN(nmp), &np->n_fh, uiop, cred);
-	NCPVNDEBUG("after: ofs=%d,resid=%d\n",(int)uiop->uio_offset, uiop->uio_resid);
-	if (!error) {
-		if (uiop->uio_offset > np->n_size) {
-			np->n_vattr.va_size = np->n_size = uiop->uio_offset;
-			vnode_pager_setsize(vp, np->n_size);
-		}
-	}
-	return (error);
-}
-
-/*
- * Do an I/O operation to/from a cache block.
- */
-int
-nwfs_doio(bp, cr, p)
-	struct buf *bp;
-	struct ucred *cr;
-	struct proc *p;
-{
-	struct uio *uiop;
-	struct vnode *vp;
-	struct nwnode *np;
-	struct nwmount *nmp;
-	int error = 0;
-	struct uio uio;
-	struct iovec io;
-
-	vp = bp->b_vp;
-	np = VTONW(vp);
-	nmp = VFSTONWFS(vp->v_mount);
-	uiop = &uio;
-	uiop->uio_iov = &io;
-	uiop->uio_iovcnt = 1;
-	uiop->uio_segflg = UIO_SYSSPACE;
-	uiop->uio_procp = p;
-	if (bp->b_iocmd == BIO_READ) {
-	    io.iov_len = uiop->uio_resid = bp->b_bcount;
-	    io.iov_base = bp->b_data;
-	    uiop->uio_rw = UIO_READ;
-	    switch (vp->v_type) {
-	      case VREG:
-		uiop->uio_offset = ((off_t)bp->b_blkno) * DEV_BSIZE;
-		error = ncp_read(NWFSTOCONN(nmp), &np->n_fh, uiop, cr);
-		if (error)
-			break;
-		if (uiop->uio_resid) {
-			int left = uiop->uio_resid;
-			int nread = bp->b_bcount - left;
-			if (left > 0)
-			    bzero((char *)bp->b_data + nread, left);
-		}
-		break;
-/*	    case VDIR:
-		nfsstats.readdir_bios++;
-		uiop->uio_offset = ((u_quad_t)bp->b_lblkno) * NFS_DIRBLKSIZ;
-		if (nmp->nm_flag & NFSMNT_RDIRPLUS) {
-			error = nfs_readdirplusrpc(vp, uiop, cr);
-			if (error == NFSERR_NOTSUPP)
-				nmp->nm_flag &= ~NFSMNT_RDIRPLUS;
-		}
-		if ((nmp->nm_flag & NFSMNT_RDIRPLUS) == 0)
-			error = nfs_readdirrpc(vp, uiop, cr);
-		if (error == 0 && uiop->uio_resid == bp->b_bcount)
-			bp->b_flags |= B_INVAL;
-		break;
-*/
-	    default:
-		printf("nwfs_doio:  type %x unexpected\n",vp->v_type);
-		break;
-	    };
-	    if (error) {
-		bp->b_ioflags |= BIO_ERROR;
-		bp->b_error = error;
-	    }
-	} else { /* write */
-	    if (((bp->b_blkno * DEV_BSIZE) + bp->b_dirtyend) > np->n_size)
-		bp->b_dirtyend = np->n_size - (bp->b_blkno * DEV_BSIZE);
-
-	    if (bp->b_dirtyend > bp->b_dirtyoff) {
-		io.iov_len = uiop->uio_resid = bp->b_dirtyend - bp->b_dirtyoff;
-		uiop->uio_offset = ((off_t)bp->b_blkno) * DEV_BSIZE + bp->b_dirtyoff;
-		io.iov_base = (char *)bp->b_data + bp->b_dirtyoff;
-		uiop->uio_rw = UIO_WRITE;
-		bp->b_flags |= B_WRITEINPROG;
-		error = ncp_write(NWFSTOCONN(nmp), &np->n_fh, uiop, cr);
-		bp->b_flags &= ~B_WRITEINPROG;
-
-		/*
-		 * For an interrupted write, the buffer is still valid
-		 * and the write hasn't been pushed to the server yet,
-		 * so we can't set BIO_ERROR and report the interruption
-		 * by setting B_EINTR. For the B_ASYNC case, B_EINTR
-		 * is not relevant, so the rpc attempt is essentially
-		 * a noop.  For the case of a V3 write rpc not being
-		 * committed to stable storage, the block is still
-		 * dirty and requires either a commit rpc or another
-		 * write rpc with iomode == NFSV3WRITE_FILESYNC before
-		 * the block is reused. This is indicated by setting
-		 * the B_DELWRI and B_NEEDCOMMIT flags.
-		 */
-    		if (error == EINTR
-		    || (!error && (bp->b_flags & B_NEEDCOMMIT))) {
-			int s;
-
-			s = splbio();
-			bp->b_flags &= ~(B_INVAL|B_NOCACHE);
-			if ((bp->b_flags & B_ASYNC) == 0)
-			    bp->b_flags |= B_EINTR;
-			if ((bp->b_flags & B_PAGING) == 0) {
-			    bdirty(bp);
-			    bp->b_flags &= ~B_DONE;
-			}
-			if ((bp->b_flags & B_ASYNC) == 0)
-			    bp->b_flags |= B_EINTR;
-			splx(s);
-	    	} else {
-			if (error) {
-				bp->b_ioflags |= BIO_ERROR;
-				bp->b_error /*= np->n_error */= error;
-/*				np->n_flag |= NWRITEERR;*/
-			}
-			bp->b_dirtyoff = bp->b_dirtyend = 0;
-		}
-	    } else {
-		bp->b_resid = 0;
-		bufdone(bp);
-		return (0);
-	    }
-	}
-	bp->b_resid = uiop->uio_resid;
-	bufdone(bp);
-	return (error);
-}
-
-/*
- * Vnode op for VM getpages.
- * Wish wish .... get rid from multiple IO routines
- */
-int
-nwfs_getpages(ap)
-	struct vop_getpages_args /* {
-		struct vnode *a_vp;
-		vm_page_t *a_m;
-		int a_count;
-		int a_reqpage;
-		vm_ooffset_t a_offset;
-	} */ *ap;
-{
-#ifndef NWFS_RWCACHE
-	return vop_stdgetpages(ap);(ap->a_vp, ap->a_m, ap->a_count,
-#else
-	int i, error, nextoff, size, toff, npages, count;
-	struct uio uio;
-	struct iovec iov;
-	vm_offset_t kva;
-	struct buf *bp;
-	struct vnode *vp;
-	struct proc *p;
-	struct ucred *cred;
-	struct nwmount *nmp;
-	struct nwnode *np;
-	vm_page_t *pages;
-
-	vp = ap->a_vp;
-	p = curproc;				/* XXX */
-	cred = curproc->p_ucred;		/* XXX */
-	np = VTONW(vp);
-	nmp = VFSTONWFS(vp->v_mount);
-	pages = ap->a_m;
-	count = ap->a_count;
-
-	if (vp->v_object == NULL) {
-		printf("nwfs_getpages: called with non-merged cache vnode??\n");
-		return VM_PAGER_ERROR;
-	}
-
-	bp = getpbuf(&nwfs_pbuf_freecnt);
-	npages = btoc(count);
-	kva = (vm_offset_t) bp->b_data;
-	pmap_qenter(kva, pages, npages);
-
-	iov.iov_base = (caddr_t) kva;
-	iov.iov_len = count;
-	uio.uio_iov = &iov;
-	uio.uio_iovcnt = 1;
-	uio.uio_offset = IDX_TO_OFF(pages[0]->pindex);
-	uio.uio_resid = count;
-	uio.uio_segflg = UIO_SYSSPACE;
-	uio.uio_rw = UIO_READ;
-	uio.uio_procp = p;
-
-	error = ncp_read(NWFSTOCONN(nmp), &np->n_fh, &uio,cred);
-	pmap_qremove(kva, npages);
-
-	relpbuf(bp, &nwfs_pbuf_freecnt);
-
-	if (error && (uio.uio_resid == count)) {
-		printf("nwfs_getpages: error %d\n",error);
-		for (i = 0; i < npages; i++) {
-			if (ap->a_reqpage != i)
-				vm_page_free(pages[i]);
-		}
-		return VM_PAGER_ERROR;
-	}
-
-	size = count - uio.uio_resid;
-
-	for (i = 0, toff = 0; i < npages; i++, toff = nextoff) {
-		vm_page_t m;
-		nextoff = toff + PAGE_SIZE;
-		m = pages[i];
-
-		m->flags &= ~PG_ZERO;
-
-		if (nextoff <= size) {
-			m->valid = VM_PAGE_BITS_ALL;
-			m->dirty = 0;
-		} else {
-			int nvalid = ((size + DEV_BSIZE - 1) - toff) & ~(DEV_BSIZE - 1);
-			vm_page_set_validclean(m, 0, nvalid);
-		}
-		
-		if (i != ap->a_reqpage) {
-			/*
-			 * Whether or not to leave the page activated is up in
-			 * the air, but we should put the page on a page queue
-			 * somewhere (it already is in the object).  Result:
-			 * It appears that emperical results show that
-			 * deactivating pages is best.
-			 */
-
-			/*
-			 * Just in case someone was asking for this page we
-			 * now tell them that it is ok to use.
-			 */
-			if (!error) {
-				if (m->flags & PG_WANTED)
-					vm_page_activate(m);
-				else
-					vm_page_deactivate(m);
-				vm_page_wakeup(m);
-			} else {
-				vm_page_free(m);
-			}
-		}
-	}
-	return 0;
-#endif /* NWFS_RWCACHE */
-}
-
-/*
- * Vnode op for VM putpages.
- * possible bug: all IO done in sync mode
- * Note that vop_close always invalidate pages before close, so it's
- * not necessary to open vnode.
- */
-int
-nwfs_putpages(ap)
-	struct vop_putpages_args /* {
-		struct vnode *a_vp;
-		vm_page_t *a_m;
-		int a_count;
-		int a_sync;
-		int *a_rtvals;
-		vm_ooffset_t a_offset;
-	} */ *ap;
-{
-	int error;
-	struct vnode *vp = ap->a_vp;
-	struct proc *p;
-	struct ucred *cred;
-
-#ifndef NWFS_RWCACHE
-	p = curproc;			/* XXX */
-	cred = p->p_ucred;		/* XXX */
-	VOP_OPEN(vp, FWRITE, cred, p);
-	error = vop_stdputpages(ap);
-	VOP_CLOSE(vp, FWRITE, cred, p);
-	return error;
-#else
-	struct uio uio;
-	struct iovec iov;
-	vm_offset_t kva;
-	struct buf *bp;
-	int i, npages, count;
-	int *rtvals;
-	struct nwmount *nmp;
-	struct nwnode *np;
-	vm_page_t *pages;
-
-	p = curproc;			/* XXX */
-	cred = p->p_ucred;		/* XXX */
-/*	VOP_OPEN(vp, FWRITE, cred, p);*/
-	np = VTONW(vp);
-	nmp = VFSTONWFS(vp->v_mount);
-	pages = ap->a_m;
-	count = ap->a_count;
-	rtvals = ap->a_rtvals;
-	npages = btoc(count);
-
-	for (i = 0; i < npages; i++) {
-		rtvals[i] = VM_PAGER_AGAIN;
-	}
-
-	bp = getpbuf(&nwfs_pbuf_freecnt);
-	kva = (vm_offset_t) bp->b_data;
-	pmap_qenter(kva, pages, npages);
-
-	iov.iov_base = (caddr_t) kva;
-	iov.iov_len = count;
-	uio.uio_iov = &iov;
-	uio.uio_iovcnt = 1;
-	uio.uio_offset = IDX_TO_OFF(pages[0]->pindex);
-	uio.uio_resid = count;
-	uio.uio_segflg = UIO_SYSSPACE;
-	uio.uio_rw = UIO_WRITE;
-	uio.uio_procp = p;
-	NCPVNDEBUG("ofs=%d,resid=%d\n",(int)uio.uio_offset, uio.uio_resid);
-
-	error = ncp_write(NWFSTOCONN(nmp), &np->n_fh, &uio, cred);
-/*	VOP_CLOSE(vp, FWRITE, cred, p);*/
-	NCPVNDEBUG("paged write done: %d\n", error);
-
-	pmap_qremove(kva, npages);
-	relpbuf(bp, &nwfs_pbuf_freecnt);
-
-	if (!error) {
-		int nwritten = round_page(count - uio.uio_resid) / PAGE_SIZE;
-		for (i = 0; i < nwritten; i++) {
-			rtvals[i] = VM_PAGER_OK;
-			pages[i]->dirty = 0;
-		}
-	}
-	return rtvals[0];
-#endif /* NWFS_RWCACHE */
-}
-/*
- * Flush and invalidate all dirty buffers. If another process is already
- * doing the flush, just wait for completion.
- */
-int
-nwfs_vinvalbuf(vp, flags, cred, p, intrflg)
-	struct vnode *vp;
-	int flags;
-	struct ucred *cred;
-	struct proc *p;
-	int intrflg;
-{
-	struct nwnode *np = VTONW(vp);
-/*	struct nwmount *nmp = VTONWFS(vp);*/
-	int error = 0, slpflag, slptimeo;
-
-	if (vp->v_flag & VXLOCK) {
-		return (0);
-	}
-	if (intrflg) {
-		slpflag = PCATCH;
-		slptimeo = 2 * hz;
-	} else {
-		slpflag = 0;
-		slptimeo = 0;
-	}
-	while (np->n_flag & NFLUSHINPROG) {
-		np->n_flag |= NFLUSHWANT;
-		error = tsleep((caddr_t)&np->n_flag, PRIBIO + 2, "nwfsvinv", slptimeo);
-		error = ncp_chkintr(NWFSTOCONN(VTONWFS(vp)), p);
-		if (error == EINTR && intrflg)
-			return EINTR;
-	}
-	np->n_flag |= NFLUSHINPROG;
-	error = vinvalbuf(vp, flags, cred, p, slpflag, 0);
-	while (error) {
-		if (intrflg && (error == ERESTART || error == EINTR)) {
-			np->n_flag &= ~NFLUSHINPROG;
-			if (np->n_flag & NFLUSHWANT) {
-				np->n_flag &= ~NFLUSHWANT;
-				wakeup((caddr_t)&np->n_flag);
-			}
-			return EINTR;
-		}
-		error = vinvalbuf(vp, flags, cred, p, slpflag, 0);
-	}
-	np->n_flag &= ~(NMODIFIED | NFLUSHINPROG);
-	if (np->n_flag & NFLUSHWANT) {
-		np->n_flag &= ~NFLUSHWANT;
-		wakeup((caddr_t)&np->n_flag);
-	}
-	return (error);
-}