From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx142.netapp.com ([216.240.21.19]:29638 "EHLO mx142.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934016AbdGKQou (ORCPT ); Tue, 11 Jul 2017 12:44:50 -0400 From: Olga Kornievskaia To: , , CC: Subject: [RFC v3 32/42] NFSD OFFLOAD_STATUS xdr Date: Tue, 11 Jul 2017 12:44:06 -0400 Message-ID: <20170711164416.1982-33-kolga@netapp.com> In-Reply-To: <20170711164416.1982-1-kolga@netapp.com> References: <20170711164416.1982-1-kolga@netapp.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-nfs-owner@vger.kernel.org List-ID: Signed-off-by: Olga Kornievskaia --- fs/nfsd/nfs4proc.c | 20 ++++++++++++++++++++ fs/nfsd/nfs4xdr.c | 30 ++++++++++++++++++++++++++++-- fs/nfsd/xdr4.h | 10 ++++++++++ 3 files changed, 58 insertions(+), 2 deletions(-) diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index 3d8ed3f..6d20ee1 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -1468,6 +1468,13 @@ extern struct file *nfs42_ssc_open(struct vfsmount *ss_mnt, fput(file); return status; } +static __be32 +nfsd4_offload_status(struct svc_rqst *rqstp, + struct nfsd4_compound_state *cstate, + struct nfsd4_offload_status *os) +{ + return nfserr_notsupp; +} static __be32 nfsd4_allocate(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, @@ -2436,6 +2443,14 @@ static inline u32 nfsd4_copy_notify_rsize(struct svc_rqst *rqstp, * sizeof(__be32); } +static inline u32 nfsd4_offload_status_rsize(struct svc_rqst *rqstp, + struct nfsd4_op *op) +{ + return (op_encode_hdr_size + + 2 /* osr_count */ + + 1 /* osr_complete<1> optional 0 for now */) * sizeof(__be32); +} + #ifdef CONFIG_NFSD_PNFS static inline u32 nfsd4_getdeviceinfo_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) { @@ -2846,6 +2861,11 @@ static inline u32 nfsd4_seek_rsize(struct svc_rqst *rqstp, struct nfsd4_op *op) .op_name = "OP_COPY_NOTIFY", .op_rsize_bop = (nfsd4op_rsize)nfsd4_copy_notify_rsize, }, + [OP_OFFLOAD_STATUS] = { + .op_func = (nfsd4op_func)nfsd4_offload_status, + .op_name = "OP_OFFLOAD_STATUS", + .op_rsize_bop = (nfsd4op_rsize)nfsd4_offload_status_rsize, + }, }; /** diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index c4438ac..f032178 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -1836,6 +1836,13 @@ static __be32 nfsd4_decode_nl4_server(struct nfsd4_compoundargs *argp, } static __be32 +nfsd4_decode_offload_status(struct nfsd4_compoundargs *argp, + struct nfsd4_offload_status *os) +{ + return nfsd4_decode_stateid(argp, &os->stateid); +} + +static __be32 nfsd4_decode_seek(struct nfsd4_compoundargs *argp, struct nfsd4_seek *seek) { DECODE_HEAD; @@ -1942,7 +1949,7 @@ static __be32 nfsd4_decode_nl4_server(struct nfsd4_compoundargs *argp, [OP_LAYOUTERROR] = (nfsd4_dec)nfsd4_decode_notsupp, [OP_LAYOUTSTATS] = (nfsd4_dec)nfsd4_decode_notsupp, [OP_OFFLOAD_CANCEL] = (nfsd4_dec)nfsd4_decode_notsupp, - [OP_OFFLOAD_STATUS] = (nfsd4_dec)nfsd4_decode_notsupp, + [OP_OFFLOAD_STATUS] = (nfsd4_dec)nfsd4_decode_offload_status, [OP_READ_PLUS] = (nfsd4_dec)nfsd4_decode_notsupp, [OP_SEEK] = (nfsd4_dec)nfsd4_decode_seek, [OP_WRITE_SAME] = (nfsd4_dec)nfsd4_decode_notsupp, @@ -4483,6 +4490,25 @@ static __be32 nfsd4_encode_readv(struct nfsd4_compoundres *resp, } static __be32 +nfsd4_encode_offload_status(struct nfsd4_compoundres *resp, __be32 nfserr, + struct nfsd4_offload_status *os) +{ + struct xdr_stream *xdr = &resp->xdr; + __be32 *p; + + if (nfserr) + return nfserr; + + p = xdr_reserve_space(xdr, 8 + 4); + if (!p) + return nfserr_resource; + p = xdr_encode_hyper(p, os->count); + *p++ = cpu_to_be32(0); + + return nfserr; +} + +static __be32 nfsd4_encode_seek(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_seek *seek) { @@ -4588,7 +4614,7 @@ static __be32 nfsd4_encode_readv(struct nfsd4_compoundres *resp, [OP_LAYOUTERROR] = (nfsd4_enc)nfsd4_encode_noop, [OP_LAYOUTSTATS] = (nfsd4_enc)nfsd4_encode_noop, [OP_OFFLOAD_CANCEL] = (nfsd4_enc)nfsd4_encode_noop, - [OP_OFFLOAD_STATUS] = (nfsd4_enc)nfsd4_encode_noop, + [OP_OFFLOAD_STATUS] = (nfsd4_enc)nfsd4_encode_offload_status, [OP_READ_PLUS] = (nfsd4_enc)nfsd4_encode_noop, [OP_SEEK] = (nfsd4_enc)nfsd4_encode_seek, [OP_WRITE_SAME] = (nfsd4_enc)nfsd4_encode_noop, diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h index e6fa914..c3e6907 100644 --- a/fs/nfsd/xdr4.h +++ b/fs/nfsd/xdr4.h @@ -561,6 +561,15 @@ struct nfsd4_copy_notify { struct nl4_servers cpn_src; }; +struct nfsd4_offload_status { + /* request */ + stateid_t stateid; + + /* response */ + u64 count; + u32 status; +}; + struct nfsd4_op { int opnum; __be32 status; @@ -617,6 +626,7 @@ struct nfsd4_op { struct nfsd4_clone clone; struct nfsd4_copy copy; struct nfsd4_copy_notify copy_notify; + struct nfsd4_offload_status offload_status; struct nfsd4_seek seek; } u; struct nfs4_replay * replay; -- 1.8.3.1