Date: Mon, 18 May 2009 21:22:03 +0000 (UTC) From: Rick Macklem <rmacklem@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r192337 - in head/sys/fs: nfs nfsclient Message-ID: <200905182122.n4ILM3p4075036@svn.freebsd.org>
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Author: rmacklem Date: Mon May 18 21:22:03 2009 New Revision: 192337 URL: http://svn.freebsd.org/changeset/base/192337 Log: Change the experimental NFSv4 client so that it does not do the NFSv4 Close operations until ncl_inactive(). This is necessary so that the Open StateIDs are available for doing I/O on mmap'd files after VOP_CLOSE(). I also changed some indentation for the nfscl_getclose() function. Approved by: kib (mentor) Modified: head/sys/fs/nfs/nfs_var.h head/sys/fs/nfsclient/nfs_clnode.c head/sys/fs/nfsclient/nfs_clrpcops.c head/sys/fs/nfsclient/nfs_clstate.c head/sys/fs/nfsclient/nfs_clvnops.c Modified: head/sys/fs/nfs/nfs_var.h ============================================================================== --- head/sys/fs/nfs/nfs_var.h Mon May 18 20:23:16 2009 (r192336) +++ head/sys/fs/nfs/nfs_var.h Mon May 18 21:22:03 2009 (r192337) @@ -351,7 +351,7 @@ int nfsrpc_openrpc(struct nfsmount *, vn u_int32_t, struct ucred *, NFSPROC_T *, int, int); int nfsrpc_opendowngrade(vnode_t, u_int32_t, struct nfsclopen *, struct ucred *, NFSPROC_T *); -int nfsrpc_close(vnode_t, struct ucred *, NFSPROC_T *); +int nfsrpc_close(vnode_t, int, NFSPROC_T *); int nfsrpc_closerpc(struct nfsrv_descript *, struct nfsmount *, struct nfsclopen *, struct ucred *, NFSPROC_T *, int); int nfsrpc_openconfirm(vnode_t, u_int8_t *, int, struct nfsclopen *, @@ -457,8 +457,7 @@ void nfscl_initiate_recovery(struct nfsc int nfscl_hasexpired(struct nfsclclient *, u_int32_t, NFSPROC_T *); void nfscl_dumpstate(struct nfsmount *, int, int, int, int); void nfscl_dupopen(vnode_t, int); -int nfscl_getclose(vnode_t, struct ucred *, NFSPROC_T *, - struct nfsclclient **, struct nfsclopenhead *); +int nfscl_getclose(vnode_t, struct nfsclclient **, struct nfsclopenhead *); int nfscl_deleg(mount_t, struct nfsclclient *, u_int8_t *, int, struct ucred *, NFSPROC_T *, struct nfscldeleg **); void nfscl_lockinit(struct nfsv4lock *); Modified: head/sys/fs/nfsclient/nfs_clnode.c ============================================================================== --- head/sys/fs/nfsclient/nfs_clnode.c Mon May 18 20:23:16 2009 (r192336) +++ head/sys/fs/nfsclient/nfs_clnode.c Mon May 18 21:22:03 2009 (r192337) @@ -190,6 +190,13 @@ ncl_inactive(struct vop_inactive_args *a np = VTONFS(ap->a_vp); if (prtactive && vrefcnt(ap->a_vp) != 0) vprint("ncl_inactive: pushing active", ap->a_vp); + + /* + * Since mmap()'d files to I/O after VOP_CLOSE(), the NFSv4 Close + * operations are delayed until now. + */ + (void) nfsrpc_close(ap->a_vp, 1, td); + if (ap->a_vp->v_type != VDIR) { sp = np->n_sillyrename; np->n_sillyrename = NULL; Modified: head/sys/fs/nfsclient/nfs_clrpcops.c ============================================================================== --- head/sys/fs/nfsclient/nfs_clrpcops.c Mon May 18 20:23:16 2009 (r192336) +++ head/sys/fs/nfsclient/nfs_clrpcops.c Mon May 18 21:22:03 2009 (r192337) @@ -550,7 +550,7 @@ nfsmout: * V4 Close operation. */ APPLESTATIC int -nfsrpc_close(vnode_t vp, struct ucred *cred, NFSPROC_T *p) +nfsrpc_close(vnode_t vp, int doclose, NFSPROC_T *p) { struct nfsclclient *clp; struct nfsclopenhead oh; @@ -558,11 +558,14 @@ nfsrpc_close(vnode_t vp, struct ucred *c if (vnode_vtype(vp) != VREG) return (0); - error = nfscl_getclose(vp, cred, p, &clp, &oh); + if (doclose) + error = nfscl_getclose(vp, &clp, &oh); + else + error = nfscl_getclose(vp, &clp, NULL); if (error) return (error); - if (!LIST_EMPTY(&oh)) + if (doclose && !LIST_EMPTY(&oh)) nfsrpc_doclose(VFSTONFS(vnode_mount(vp)), &oh, p); nfscl_clientrelease(clp); return (0); @@ -997,7 +1000,7 @@ nfsrpc_setattr(vnode_t vp, struct vattr if (lckp != NULL) nfscl_lockderef(lckp); if (!openerr) - (void) nfsrpc_close(vp, cred, p); + (void) nfsrpc_close(vp, 0, p); if (error == NFSERR_GRACE || error == NFSERR_STALESTATEID || error == NFSERR_STALEDONTRECOVER || error == NFSERR_DELAY || error == NFSERR_OLDSTATEID) { Modified: head/sys/fs/nfsclient/nfs_clstate.c ============================================================================== --- head/sys/fs/nfsclient/nfs_clstate.c Mon May 18 20:23:16 2009 (r192336) +++ head/sys/fs/nfsclient/nfs_clstate.c Mon May 18 21:22:03 2009 (r192337) @@ -663,6 +663,9 @@ nfscl_openrelease(struct nfsclopen *op, * client data structures to do the SetClientId/SetClientId_confirm, * but will release that lock and return the clientid with a refernce * count on it. + * If the p argument is NULL, it will not do the SetClientId/Confirm + * and the cred argument is not used, so it can be NULL too. + * It always clpp with a reference count on it, unless returning an error. */ APPLESTATIC int nfscl_getcl(vnode_t vp, struct ucred *cred, NFSPROC_T *p, @@ -2748,8 +2751,8 @@ nfscl_dupopen(vnode_t vp, int dupopens) * on ohp. */ APPLESTATIC int -nfscl_getclose(vnode_t vp, struct ucred *cred, NFSPROC_T *p, - struct nfsclclient **clpp, struct nfsclopenhead *ohp) +nfscl_getclose(vnode_t vp, struct nfsclclient **clpp, + struct nfsclopenhead *ohp) { struct nfsclclient *clp; struct nfsclowner *owp, *nowp; @@ -2758,12 +2761,13 @@ nfscl_getclose(vnode_t vp, struct ucred struct nfsfh *nfhp; int error, notdecr, candelete; - error = nfscl_getcl(vp, cred, p, &clp); + error = nfscl_getcl(vp, NULL, NULL, &clp); if (error) return (error); *clpp = clp; - LIST_INIT(ohp); + if (ohp != NULL) + LIST_INIT(ohp); nfhp = VTONFS(vp)->n_fhp; notdecr = 1; NFSLOCKCLSTATE(); @@ -2798,49 +2802,56 @@ nfscl_getclose(vnode_t vp, struct ucred /* Now process the opens against the server. */ LIST_FOREACH(owp, &clp->nfsc_owner, nfsow_list) { - op = LIST_FIRST(&owp->nfsow_open); - while (op != NULL) { - nop = LIST_NEXT(op, nfso_list); - if (op->nfso_fhlen == nfhp->nfh_len && - !NFSBCMP(op->nfso_fh, nfhp->nfh_fh, nfhp->nfh_len)) { - /* Found an open, decrement cnt if possible */ - if (notdecr && op->nfso_opencnt > 0) { - notdecr = 0; - op->nfso_opencnt--; - } - /* - * There are more opens, so just return after - * putting any opens already found back in the - * state list. - */ - if (op->nfso_opencnt > 0) { - /* reuse op, since we're returning */ - op = LIST_FIRST(ohp); - while (op != NULL) { - nop = LIST_NEXT(op, nfso_list); - LIST_REMOVE(op, nfso_list); - LIST_INSERT_HEAD(&op->nfso_own->nfsow_open, - op, nfso_list); - op = nop; - } - NFSUNLOCKCLSTATE(); - LIST_INIT(ohp); - return (0); - } + op = LIST_FIRST(&owp->nfsow_open); + while (op != NULL) { + nop = LIST_NEXT(op, nfso_list); + if (op->nfso_fhlen == nfhp->nfh_len && + !NFSBCMP(op->nfso_fh, nfhp->nfh_fh, + nfhp->nfh_len)) { + /* Found an open, decrement cnt if possible */ + if (notdecr && op->nfso_opencnt > 0) { + notdecr = 0; + op->nfso_opencnt--; + } + /* + * There are more opens, so just return after + * putting any opens already found back in the + * state list. + */ + if (op->nfso_opencnt > 0) { + if (ohp != NULL) { + /* Reattach open until later */ + op = LIST_FIRST(ohp); + while (op != NULL) { + nop = LIST_NEXT(op, nfso_list); + LIST_REMOVE(op, nfso_list); + LIST_INSERT_HEAD( + &op->nfso_own->nfsow_open, + op, nfso_list); + op = nop; + } + LIST_INIT(ohp); + } + NFSUNLOCKCLSTATE(); + return (0); + } - /* - * Move this entry to the list of opens to be returned. - * (If we find other open(s) still in use, it will be - * put back in the state list in the code just above.) - */ - LIST_REMOVE(op, nfso_list); - LIST_INSERT_HEAD(ohp, op, nfso_list); + /* + * Move this entry to the list of opens to be + * returned. (If we find other open(s) still in + * use, it will be put back in the state list + * in the code just above.) + */ + if (ohp != NULL) { + LIST_REMOVE(op, nfso_list); + LIST_INSERT_HEAD(ohp, op, nfso_list); + } + } + op = nop; } - op = nop; - } } - if (dp != NULL) { + if (dp != NULL && ohp != NULL) { /* * If we are flushing all writes against the server for this * file upon close, we do not need to keep the local opens @@ -2869,8 +2880,8 @@ nfscl_getclose(vnode_t vp, struct ucred } } NFSUNLOCKCLSTATE(); - if (notdecr) - printf("nfscl: never fnd open\n"); + if (notdecr && ohp == NULL) + printf("nfscl: never fnd open\n"); return (0); } Modified: head/sys/fs/nfsclient/nfs_clvnops.c ============================================================================== --- head/sys/fs/nfsclient/nfs_clvnops.c Mon May 18 20:23:16 2009 (r192336) +++ head/sys/fs/nfsclient/nfs_clvnops.c Mon May 18 21:22:03 2009 (r192337) @@ -517,8 +517,7 @@ nfs_open(struct vop_open_args *ap) error = ncl_vinvalbuf(vp, V_SAVE, ap->a_td, 1); if (error == EINTR || error == EIO) { if (NFS_ISV4(vp)) - (void) nfsrpc_close(vp, ap->a_cred, - ap->a_td); + (void) nfsrpc_close(vp, 0, ap->a_td); return (error); } np->n_attrstamp = 0; @@ -527,8 +526,7 @@ nfs_open(struct vop_open_args *ap) error = VOP_GETATTR(vp, &vattr, ap->a_cred); if (error) { if (NFS_ISV4(vp)) - (void) nfsrpc_close(vp, ap->a_cred, - ap->a_td); + (void) nfsrpc_close(vp, 0, ap->a_td); return (error); } mtx_lock(&np->n_mtx); @@ -549,8 +547,7 @@ nfs_open(struct vop_open_args *ap) error = VOP_GETATTR(vp, &vattr, ap->a_cred); if (error) { if (NFS_ISV4(vp)) - (void) nfsrpc_close(vp, ap->a_cred, - ap->a_td); + (void) nfsrpc_close(vp, 0, ap->a_td); return (error); } mtx_lock(&np->n_mtx); @@ -562,8 +559,8 @@ nfs_open(struct vop_open_args *ap) error = ncl_vinvalbuf(vp, V_SAVE, ap->a_td, 1); if (error == EINTR || error == EIO) { if (NFS_ISV4(vp)) - (void) nfsrpc_close(vp, - ap->a_cred, ap->a_td); + (void) nfsrpc_close(vp, 0, + ap->a_td); return (error); } mtx_lock(&np->n_mtx); @@ -583,8 +580,7 @@ nfs_open(struct vop_open_args *ap) error = ncl_vinvalbuf(vp, V_SAVE, ap->a_td, 1); if (error) { if (NFS_ISV4(vp)) - (void) nfsrpc_close(vp, ap->a_cred, - ap->a_td); + (void) nfsrpc_close(vp, 0, ap->a_td); return (error); } mtx_lock(&np->n_mtx); @@ -745,7 +741,7 @@ nfs_close(struct vop_close_args *ap) /* * and do the close. */ - ret = nfsrpc_close(vp, cred, ap->a_td); + ret = nfsrpc_close(vp, 0, ap->a_td); if (!error && ret) error = ret; if (error)
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