Return-Path: Received: from mx2.netapp.com ([216.240.18.37]:41287 "EHLO mx2.netapp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752692Ab1BNTSp (ORCPT ); Mon, 14 Feb 2011 14:18:45 -0500 From: andros@netapp.com To: trond.myklebust@netapp.com Cc: linux-nfs@vger.kernel.org, Andy Adamson Subject: [PATCH 04/16] pnfs: wave 3: send zero stateid seqid on v4.1 i/o Date: Mon, 14 Feb 2011 14:18:24 -0500 Message-Id: <1297711116-3139-5-git-send-email-andros@netapp.com> In-Reply-To: <1297711116-3139-1-git-send-email-andros@netapp.com> References: <1297711116-3139-1-git-send-email-andros@netapp.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: Content-Type: text/plain MIME-Version: 1.0 From: Andy Adamson Data servers require a zero stateid seqid, and there is no advantage to not doing the same for all NFSv4.1 Signed-off-by: Andy Adamson --- fs/nfs/nfs4xdr.c | 10 +++++++--- 1 files changed, 7 insertions(+), 3 deletions(-) diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 4e2c168..2380c45 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -1384,7 +1384,7 @@ static void encode_putrootfh(struct xdr_stream *xdr, struct compound_hdr *hdr) hdr->replen += decode_putrootfh_maxsz; } -static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx) +static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context *ctx, const struct nfs_lock_context *l_ctx, int zero_seqid) { nfs4_stateid stateid; __be32 *p; @@ -1392,6 +1392,8 @@ static void encode_stateid(struct xdr_stream *xdr, const struct nfs_open_context p = reserve_space(xdr, NFS4_STATEID_SIZE); if (ctx->state != NULL) { nfs4_copy_stateid(&stateid, ctx->state, l_ctx->lockowner, l_ctx->pid); + if (zero_seqid) + stateid.stateid.seqid = 0; xdr_encode_opaque_fixed(p, stateid.data, NFS4_STATEID_SIZE); } else xdr_encode_opaque_fixed(p, zero_stateid.data, NFS4_STATEID_SIZE); @@ -1404,7 +1406,8 @@ static void encode_read(struct xdr_stream *xdr, const struct nfs_readargs *args, p = reserve_space(xdr, 4); *p = cpu_to_be32(OP_READ); - encode_stateid(xdr, args->context, args->lock_context); + encode_stateid(xdr, args->context, args->lock_context, + hdr->minorversion); p = reserve_space(xdr, 12); p = xdr_encode_hyper(p, args->offset); @@ -1592,7 +1595,8 @@ static void encode_write(struct xdr_stream *xdr, const struct nfs_writeargs *arg p = reserve_space(xdr, 4); *p = cpu_to_be32(OP_WRITE); - encode_stateid(xdr, args->context, args->lock_context); + encode_stateid(xdr, args->context, args->lock_context, + hdr->minorversion); p = reserve_space(xdr, 16); p = xdr_encode_hyper(p, args->offset); -- 1.7.2.3