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nfs41: fix session fore channel negotiation
If the rsize or wsize is not set on the mount command, negotiate the highest supported rsize and wsize in session creation. Fixes a bug where the client negotiated nfs41_maxwrite_overhead as ca_maxrequestsize and nfs41_maxread_overhead as ca_maxresponsesize resulting in NFS4ERR_REQ_TOO_BIG errors on writes. Signed-off-by: Andy Adamson <andros@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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1 changed files with 10 additions and 2 deletions
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@ -4935,14 +4935,22 @@ int nfs4_init_session(struct nfs_server *server)
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{
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struct nfs_client *clp = server->nfs_client;
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struct nfs4_session *session;
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unsigned int rsize, wsize;
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int ret;
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if (!nfs4_has_session(clp))
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return 0;
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rsize = server->rsize;
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if (rsize == 0)
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rsize = NFS_MAX_FILE_IO_SIZE;
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wsize = server->wsize;
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if (wsize == 0)
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wsize = NFS_MAX_FILE_IO_SIZE;
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session = clp->cl_session;
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session->fc_attrs.max_rqst_sz = server->wsize + nfs41_maxwrite_overhead;
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session->fc_attrs.max_resp_sz = server->rsize + nfs41_maxread_overhead;
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session->fc_attrs.max_rqst_sz = wsize + nfs41_maxwrite_overhead;
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session->fc_attrs.max_resp_sz = rsize + nfs41_maxread_overhead;
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ret = nfs4_recover_expired_lease(server);
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if (!ret)
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