Return-Path: linux-nfs-owner@vger.kernel.org Received: from mail-ig0-f169.google.com ([209.85.213.169]:38666 "EHLO mail-ig0-f169.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753862AbaDRSqX (ORCPT ); Fri, 18 Apr 2014 14:46:23 -0400 Received: by mail-ig0-f169.google.com with SMTP id h18so1230901igc.0 for ; Fri, 18 Apr 2014 11:46:23 -0700 (PDT) From: Trond Myklebust To: Bruce Fields Cc: linux-nfs@vger.kernel.org Subject: [PATCH 50/70] NFSd: Use the session->se_client in lookup_clientid() Date: Fri, 18 Apr 2014 14:44:44 -0400 Message-Id: <1397846704-14567-51-git-send-email-trond.myklebust@primarydata.com> In-Reply-To: <1397846704-14567-50-git-send-email-trond.myklebust@primarydata.com> References: <1397846704-14567-1-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-2-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-3-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-4-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-5-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-6-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-7-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-8-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-9-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-10-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-11-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-12-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-13-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-14-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-15-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-16-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-17-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-18-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-19-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-20-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-21-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-22-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-23-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-24-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-25-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-26-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-27-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-28-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-29-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-30-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-31-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-32-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-33-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-34-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-35-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-36-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-37-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-38-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-39-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-40-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-41-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-42-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-43-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-44-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-45-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-46-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-47-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-48-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-49-git-send-email-trond.myklebust@primarydata.com> <1397846704-14567-50-git-send-email-trond.myklebust@primarydata.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: In NFSv4.x with x>0, we want to use the session's pointer to the nfs4_client in order to optimise away the extra lookup of the clid. Signed-off-by: Trond Myklebust --- fs/nfsd/nfs4state.c | 25 +++++++++++++++---------- 1 file changed, 15 insertions(+), 10 deletions(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 888acf114e40..6e2d348d3367 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -3571,13 +3571,19 @@ void nfsd4_cleanup_open_state(struct nfsd4_open *open, __be32 status) put_generic_stateid(open->op_stp); } -static __be32 lookup_clientid(clientid_t *clid, bool session, struct nfsd_net *nn, struct nfs4_client **clp) +static __be32 lookup_clientid(clientid_t *clid, struct nfsd4_session *session, struct nfsd_net *nn, struct nfs4_client **clp) { struct nfs4_client *found; - if (STALE_CLIENTID(clid, nn)) - return nfserr_stale_clientid; - found = find_confirmed_client(clid, session, nn); + if (session != NULL) { + found = session->se_client; + if (!same_clid(&found->cl_clientid, clid)) + return nfserr_stale_clientid; + } else { + if (STALE_CLIENTID(clid, nn)) + return nfserr_stale_clientid; + found = find_confirmed_client(clid, false, nn); + } if (clp) *clp = found; return found ? nfs_ok : nfserr_expired; @@ -3594,7 +3600,7 @@ nfsd4_renew(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, nfs4_lock_state(); dprintk("process_renew(%08x/%08x): starting\n", clid->cl_boot, clid->cl_id); - status = lookup_clientid(clid, cstate->minorversion, nn, &clp); + status = lookup_clientid(clid, NULL, nn, &clp); if (status) goto out; status = nfserr_cb_path_down; @@ -3879,14 +3885,13 @@ static __be32 nfsd4_lookup_stateid(struct nfsd4_compound_state *cstate, { struct nfs4_client *cl; __be32 status; - bool sessions = cstate->minorversion != 0; if (ZERO_STATEID(stateid) || ONE_STATEID(stateid)) return nfserr_bad_stateid; - status = lookup_clientid(&stateid->si_opaque.so_clid, sessions, + status = lookup_clientid(&stateid->si_opaque.so_clid, cstate->session, nn, &cl); if (status == nfserr_stale_clientid) { - if (sessions) + if (cstate->session) return nfserr_bad_stateid; return nfserr_stale_stateid; } @@ -4770,7 +4775,7 @@ nfsd4_lockt(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, nfs4_lock_state(); if (!nfsd4_has_session(cstate)) { - status = lookup_clientid(&lockt->lt_clientid, false, nn, NULL); + status = lookup_clientid(&lockt->lt_clientid, NULL, nn, NULL); if (status) goto out; } @@ -4942,7 +4947,7 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp, nfs4_lock_state(); - status = lookup_clientid(clid, cstate->minorversion, nn, NULL); + status = lookup_clientid(clid, NULL, nn, NULL); if (status) goto out; -- 1.9.0