Author: rmacklem Date: Tue Apr 19 01:09:51 2011 New Revision: 220810 URL: http://svn.freebsd.org/changeset/base/220810
Log: Fix up handling of the nfsmount structure in read and write within the experimental NFS client. Mostly add mutex locking and use the same rsize, wsize during the operation by keeping a local copy of it. This is another change that brings it closer to the regular NFS client. MFC after: 2 weeks Modified: head/sys/fs/nfsclient/nfs_clrpcops.c Modified: head/sys/fs/nfsclient/nfs_clrpcops.c ============================================================================== --- head/sys/fs/nfsclient/nfs_clrpcops.c Tue Apr 19 00:47:26 2011 (r220809) +++ head/sys/fs/nfsclient/nfs_clrpcops.c Tue Apr 19 01:09:51 2011 (r220810) @@ -1284,16 +1284,22 @@ nfsrpc_readrpc(vnode_t vp, struct uio *u struct nfsrv_descript nfsd; struct nfsmount *nmp = VFSTONFS(vnode_mount(vp)); struct nfsrv_descript *nd = &nfsd; + int rsize; *attrflagp = 0; tsiz = uio_uio_resid(uiop); - if (uiop->uio_offset + tsiz > 0xffffffff && - !NFSHASNFSV3OR4(nmp)) + NFSLOCKMNT(nmp); + if (uiop->uio_offset + tsiz > nmp->nm_maxfilesize) { + /* XXX Needs overflow/negative check for uio_offset */ + NFSUNLOCKMNT(nmp); return (EFBIG); + } + rsize = nmp->nm_rsize; + NFSUNLOCKMNT(nmp); nd->nd_mrep = NULL; while (tsiz > 0) { *attrflagp = 0; - len = (tsiz > nmp->nm_rsize) ? nmp->nm_rsize : tsiz; + len = (tsiz > rsize) ? rsize : tsiz; NFSCL_REQSTART(nd, NFSPROC_READ, vp); if (nd->nd_flag & ND_NFSV4) nfsm_stateidtom(nd, stateidp, NFSSTATEID_PUTSTATEID); @@ -1333,7 +1339,7 @@ nfsrpc_readrpc(vnode_t vp, struct uio *u NFSM_DISSECT(tl, u_int32_t *, NFSX_UNSIGNED); eof = fxdr_unsigned(int, *tl); } - NFSM_STRSIZ(retlen, nmp->nm_rsize); + NFSM_STRSIZ(retlen, rsize); error = nfsm_mbufuio(nd, uiop, retlen); if (error) goto nfsmout; @@ -1457,8 +1463,7 @@ nfsrpc_writerpc(vnode_t vp, struct uio * *attrflagp = 0; tsiz = uio_uio_resid(uiop); NFSLOCKMNT(nmp); - if (uiop->uio_offset + tsiz > 0xffffffff && - !NFSHASNFSV3OR4(nmp)) { + if (uiop->uio_offset + tsiz > nmp->nm_maxfilesize) { NFSUNLOCKMNT(nmp); return (EFBIG); } @@ -1467,11 +1472,6 @@ nfsrpc_writerpc(vnode_t vp, struct uio * nd->nd_mrep = NULL; /* NFSv2 sometimes does a write with */ nd->nd_repstat = 0; /* uio_resid == 0, so the while is not done */ while (tsiz > 0) { - nmp = VFSTONFS(vnode_mount(vp)); - if (nmp == NULL) { - error = ENXIO; - goto nfsmout; - } *attrflagp = 0; len = (tsiz > wsize) ? wsize : tsiz; NFSCL_REQSTART(nd, NFSPROC_WRITE, vp); _______________________________________________ svn-src-head@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"