From fa178f29c0f8a0dce748181a5351f4a92fd4f455 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 3 Jan 2006 09:55:38 +0100 Subject: [PATCH] NFSv4: Ensure DELEGRETURN returns attributes Upon return of a write delegation, the server will almost always bump the change attribute. Ensure that we pick up that change so that we don't invalidate our data cache unnecessarily. Signed-off-by: Trond Myklebust --- fs/nfs/delegation.c | 2 -- fs/nfs/nfs4proc.c | 17 +++++++++++++---- fs/nfs/nfs4xdr.c | 33 ++++++++++++++++++++++----------- include/linux/nfs_xdr.h | 6 ++++++ 4 files changed, 41 insertions(+), 17 deletions(-) diff --git a/fs/nfs/delegation.c b/fs/nfs/delegation.c index d2ee09b38c..66cc720e39 100644 --- a/fs/nfs/delegation.c +++ b/fs/nfs/delegation.c @@ -159,8 +159,6 @@ static int nfs_do_return_delegation(struct inode *inode, struct nfs_delegation * { int res = 0; - __nfs_revalidate_inode(NFS_SERVER(inode), inode); - res = nfs4_proc_delegreturn(inode, delegation->cred, &delegation->stateid); nfs_free_delegation(delegation); return res; diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index b334915499..984ca3454d 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -2920,11 +2920,12 @@ nfs4_proc_setclientid_confirm(struct nfs4_client *clp, struct rpc_cred *cred) struct nfs4_delegreturndata { struct nfs4_delegreturnargs args; + struct nfs4_delegreturnres res; struct nfs_fh fh; nfs4_stateid stateid; struct rpc_cred *cred; unsigned long timestamp; - const struct nfs_server *server; + struct nfs_fattr fattr; int rpc_status; }; @@ -2934,8 +2935,10 @@ static void nfs4_delegreturn_prepare(struct rpc_task *task, void *calldata) struct rpc_message msg = { .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_DELEGRETURN], .rpc_argp = &data->args, + .rpc_resp = &data->res, .rpc_cred = data->cred, }; + nfs_fattr_init(data->res.fattr); rpc_call_setup(task, &msg, 0); } @@ -2944,7 +2947,7 @@ static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata) struct nfs4_delegreturndata *data = calldata; data->rpc_status = task->tk_status; if (data->rpc_status == 0) - renew_lease(data->server, data->timestamp); + renew_lease(data->res.server, data->timestamp); } static void nfs4_delegreturn_release(void *calldata) @@ -2964,6 +2967,7 @@ const static struct rpc_call_ops nfs4_delegreturn_ops = { static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4_stateid *stateid) { struct nfs4_delegreturndata *data; + struct nfs_server *server = NFS_SERVER(inode); struct rpc_task *task; int status; @@ -2972,11 +2976,13 @@ static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, co return -ENOMEM; data->args.fhandle = &data->fh; data->args.stateid = &data->stateid; + data->args.bitmask = server->attr_bitmask; nfs_copy_fh(&data->fh, NFS_FH(inode)); memcpy(&data->stateid, stateid, sizeof(data->stateid)); + data->res.fattr = &data->fattr; + data->res.server = server; data->cred = get_rpccred(cred); data->timestamp = jiffies; - data->server = NFS_SERVER(inode); data->rpc_status = 0; task = rpc_run_task(NFS_CLIENT(inode), RPC_TASK_ASYNC, &nfs4_delegreturn_ops, data); @@ -2985,8 +2991,11 @@ static int _nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, co return PTR_ERR(task); } status = nfs4_wait_for_completion_rpc_task(task); - if (status == 0) + if (status == 0) { status = data->rpc_status; + if (status == 0) + nfs_post_op_update_inode(inode, &data->fattr); + } rpc_release_task(task); return status; } diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 5d6bda43df..12be1d6821 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -392,9 +392,11 @@ static int nfs_stat_to_errno(int); decode_getattr_maxsz) #define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \ encode_putfh_maxsz + \ - encode_delegreturn_maxsz) + encode_delegreturn_maxsz + \ + encode_getattr_maxsz) #define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \ - decode_delegreturn_maxsz) + decode_delegreturn_maxsz + \ + decode_getattr_maxsz) #define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \ encode_putfh_maxsz + \ encode_getattr_maxsz) @@ -1983,14 +1985,20 @@ static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, uint32_t *p, const str { struct xdr_stream xdr; struct compound_hdr hdr = { - .nops = 2, + .nops = 3, }; int status; xdr_init_encode(&xdr, &req->rq_snd_buf, p); encode_compound_hdr(&xdr, &hdr); - if ((status = encode_putfh(&xdr, args->fhandle)) == 0) - status = encode_delegreturn(&xdr, args->stateid); + status = encode_putfh(&xdr, args->fhandle); + if (status != 0) + goto out; + status = encode_delegreturn(&xdr, args->stateid); + if (status != 0) + goto out; + status = encode_getfattr(&xdr, args->bitmask); +out: return status; } @@ -4184,7 +4192,7 @@ static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, s /* * DELEGRETURN request */ -static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, void *dummy) +static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_delegreturnres *res) { struct xdr_stream xdr; struct compound_hdr hdr; @@ -4192,11 +4200,14 @@ static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, void *d xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p); status = decode_compound_hdr(&xdr, &hdr); - if (status == 0) { - status = decode_putfh(&xdr); - if (status == 0) - status = decode_delegreturn(&xdr); - } + if (status != 0) + goto out; + status = decode_putfh(&xdr); + if (status != 0) + goto out; + status = decode_delegreturn(&xdr); + decode_getfattr(&xdr, res->fattr, res->server); +out: return status; } diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 9f422fd876..6d6f69ec56 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -220,6 +220,12 @@ struct nfs_lockt_res { struct nfs4_delegreturnargs { const struct nfs_fh *fhandle; const nfs4_stateid *stateid; + const u32 * bitmask; +}; + +struct nfs4_delegreturnres { + struct nfs_fattr * fattr; + const struct nfs_server *server; }; /* -- 2.39.5