forked from luck/tmp_suning_uos_patched
NFSv4: Add encode/decode of the layoutreturn op in CLOSE
Add XDR encoding for the layoutreturn op, and storage for the layoutreturn arguments to the CLOSE compound. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust
parent
d8434d4c54
commit
cf80516579
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@ -3035,10 +3035,14 @@ struct nfs4_closedata {
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struct nfs4_state *state;
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struct nfs_closeargs arg;
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struct nfs_closeres res;
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struct {
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struct nfs4_layoutreturn_args arg;
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struct nfs4_layoutreturn_res res;
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u32 roc_barrier;
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bool roc;
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} lr;
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struct nfs_fattr fattr;
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unsigned long timestamp;
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bool roc;
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u32 roc_barrier;
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};
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static void nfs4_free_closedata(void *data)
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@ -3047,7 +3051,7 @@ static void nfs4_free_closedata(void *data)
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struct nfs4_state_owner *sp = calldata->state->owner;
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struct super_block *sb = calldata->state->inode->i_sb;
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if (calldata->roc)
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if (calldata->lr.roc)
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pnfs_roc_release(calldata->state->inode);
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nfs4_put_open_state(calldata->state);
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nfs_free_seqid(calldata->arg.seqid);
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@ -3067,15 +3071,41 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
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if (!nfs4_sequence_done(task, &calldata->res.seq_res))
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return;
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trace_nfs4_close(state, &calldata->arg, &calldata->res, task->tk_status);
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/* Handle Layoutreturn errors */
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if (calldata->arg.lr_args && task->tk_status != 0) {
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switch (calldata->res.lr_ret) {
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default:
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calldata->res.lr_ret = -NFS4ERR_NOMATCHING_LAYOUT;
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break;
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case 0:
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calldata->arg.lr_args = NULL;
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calldata->res.lr_res = NULL;
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break;
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case -NFS4ERR_ADMIN_REVOKED:
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case -NFS4ERR_DELEG_REVOKED:
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case -NFS4ERR_EXPIRED:
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case -NFS4ERR_BAD_STATEID:
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case -NFS4ERR_OLD_STATEID:
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case -NFS4ERR_UNKNOWN_LAYOUTTYPE:
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case -NFS4ERR_WRONG_CRED:
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calldata->arg.lr_args = NULL;
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calldata->res.lr_res = NULL;
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calldata->res.lr_ret = 0;
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rpc_restart_call_prepare(task);
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return;
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}
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}
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/* hmm. we are done with the inode, and in the process of freeing
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* the state_owner. we keep this around to process errors
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*/
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switch (task->tk_status) {
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case 0:
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res_stateid = &calldata->res.stateid;
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if (calldata->roc)
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if (calldata->lr.roc)
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pnfs_roc_set_barrier(state->inode,
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calldata->roc_barrier);
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calldata->lr.roc_barrier);
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renew_lease(server, calldata->timestamp);
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break;
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case -NFS4ERR_ADMIN_REVOKED:
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@ -3151,7 +3181,7 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
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goto out_no_action;
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}
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if (nfs4_wait_on_layoutreturn(inode, task)) {
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if (!calldata->arg.lr_args && nfs4_wait_on_layoutreturn(inode, task)) {
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nfs_release_seqid(calldata->arg.seqid);
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goto out_wait;
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}
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@ -3165,8 +3195,8 @@ static void nfs4_close_prepare(struct rpc_task *task, void *data)
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else
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calldata->arg.bitmask = NULL;
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}
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if (calldata->roc)
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pnfs_roc_get_barrier(inode, &calldata->roc_barrier);
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if (calldata->lr.roc)
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pnfs_roc_get_barrier(inode, &calldata->lr.roc_barrier);
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calldata->arg.share_access =
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nfs4_map_atomic_open_share(NFS_SERVER(inode),
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@ -3250,7 +3280,8 @@ int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait)
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calldata->res.fattr = &calldata->fattr;
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calldata->res.seqid = calldata->arg.seqid;
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calldata->res.server = server;
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calldata->roc = nfs4_roc(state->inode);
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calldata->res.lr_ret = -NFS4ERR_NOMATCHING_LAYOUT;
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calldata->lr.roc = nfs4_roc(state->inode);
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nfs_sb_active(calldata->inode->i_sb);
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msg.rpc_argp = &calldata->arg;
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@ -415,6 +415,8 @@ static int nfs4_stat_to_errno(int);
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#else /* CONFIG_NFS_V4_1 */
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#define encode_sequence_maxsz 0
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#define decode_sequence_maxsz 0
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#define encode_layoutreturn_maxsz 0
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#define decode_layoutreturn_maxsz 0
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#endif /* CONFIG_NFS_V4_1 */
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#define NFS4_enc_compound_sz (1024) /* XXX: large enough? */
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@ -508,11 +510,13 @@ static int nfs4_stat_to_errno(int);
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#define NFS4_enc_close_sz (compound_encode_hdr_maxsz + \
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encode_sequence_maxsz + \
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encode_putfh_maxsz + \
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encode_layoutreturn_maxsz + \
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encode_close_maxsz + \
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encode_getattr_maxsz)
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#define NFS4_dec_close_sz (compound_decode_hdr_maxsz + \
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decode_sequence_maxsz + \
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decode_putfh_maxsz + \
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decode_layoutreturn_maxsz + \
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decode_close_maxsz + \
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decode_getattr_maxsz)
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#define NFS4_enc_setattr_sz (compound_encode_hdr_maxsz + \
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@ -2061,6 +2065,13 @@ static void encode_free_stateid(struct xdr_stream *xdr,
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encode_op_hdr(xdr, OP_FREE_STATEID, decode_free_stateid_maxsz, hdr);
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encode_nfs4_stateid(xdr, &args->stateid);
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}
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#else
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static inline void
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encode_layoutreturn(struct xdr_stream *xdr,
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const struct nfs4_layoutreturn_args *args,
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struct compound_hdr *hdr)
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{
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}
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#endif /* CONFIG_NFS_V4_1 */
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/*
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@ -2248,6 +2259,8 @@ static void nfs4_xdr_enc_close(struct rpc_rqst *req, struct xdr_stream *xdr,
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encode_compound_hdr(xdr, req, &hdr);
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encode_sequence(xdr, &args->seq_args, &hdr);
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encode_putfh(xdr, args->fh, &hdr);
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if (args->lr_args)
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encode_layoutreturn(xdr, args->lr_args, &hdr);
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encode_close(xdr, args, &hdr);
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if (args->bitmask != NULL)
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encode_getfattr(xdr, args->bitmask, &hdr);
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@ -6088,6 +6101,13 @@ static int decode_free_stateid(struct xdr_stream *xdr,
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res->status = decode_op_hdr(xdr, OP_FREE_STATEID);
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return res->status;
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}
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#else
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static inline
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int decode_layoutreturn(struct xdr_stream *xdr,
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struct nfs4_layoutreturn_res *res)
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{
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return 0;
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}
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#endif /* CONFIG_NFS_V4_1 */
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/*
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@ -6440,6 +6460,12 @@ static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
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status = decode_putfh(xdr);
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if (status)
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goto out;
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if (res->lr_res) {
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status = decode_layoutreturn(xdr, res->lr_res);
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res->lr_ret = status;
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if (status)
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goto out;
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}
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status = decode_close(xdr, res);
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if (status != 0)
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goto out;
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@ -469,6 +469,7 @@ struct nfs_closeargs {
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fmode_t fmode;
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u32 share_access;
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const u32 * bitmask;
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struct nfs4_layoutreturn_args *lr_args;
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};
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struct nfs_closeres {
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@ -477,6 +478,8 @@ struct nfs_closeres {
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struct nfs_fattr * fattr;
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struct nfs_seqid * seqid;
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const struct nfs_server *server;
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struct nfs4_layoutreturn_res *lr_res;
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int lr_ret;
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};
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/*
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* * Arguments to the lock,lockt, and locku call.
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