From owner-svn-src-all@freebsd.org Sat Dec 15 11:32:12 2018 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 89AD41342F95; Sat, 15 Dec 2018 11:32:12 +0000 (UTC) (envelope-from trasz@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 2AF056C19F; Sat, 15 Dec 2018 11:32:12 +0000 (UTC) (envelope-from trasz@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 1BBA7EF3F; Sat, 15 Dec 2018 11:32:12 +0000 (UTC) (envelope-from trasz@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id wBFBWBIa058002; Sat, 15 Dec 2018 11:32:11 GMT (envelope-from trasz@FreeBSD.org) Received: (from trasz@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id wBFBWBeU058001; Sat, 15 Dec 2018 11:32:11 GMT (envelope-from trasz@FreeBSD.org) Message-Id: <201812151132.wBFBWBeU058001@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: trasz set sender to trasz@FreeBSD.org using -f From: Edward Tomasz Napierala Date: Sat, 15 Dec 2018 11:32:11 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r342114 - head/sys/rpc/rpcsec_gss X-SVN-Group: head X-SVN-Commit-Author: trasz X-SVN-Commit-Paths: head/sys/rpc/rpcsec_gss X-SVN-Commit-Revision: 342114 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 2AF056C19F X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.82 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-0.99)[-0.989,0]; NEURAL_HAM_SHORT(-0.95)[-0.950,0]; NEURAL_HAM_LONG(-0.88)[-0.883,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 15 Dec 2018 11:32:12 -0000 Author: trasz Date: Sat Dec 15 11:32:11 2018 New Revision: 342114 URL: https://svnweb.freebsd.org/changeset/base/342114 Log: Add kern.rpc.gss.client_max, to make it possible to bump it easily. This can drastically lower the load on gssd(8) on large NFS servers. Submitted by: Per Andersson Reviewed by: rmacklem@ MFC after: 2 weeks Sponsored by: Chalmers University of Technology Differential Revision: https://reviews.freebsd.org/D18393 Modified: head/sys/rpc/rpcsec_gss/svc_rpcsec_gss.c Modified: head/sys/rpc/rpcsec_gss/svc_rpcsec_gss.c ============================================================================== --- head/sys/rpc/rpcsec_gss/svc_rpcsec_gss.c Sat Dec 15 10:38:07 2018 (r342113) +++ head/sys/rpc/rpcsec_gss/svc_rpcsec_gss.c Sat Dec 15 11:32:11 2018 (r342114) @@ -171,9 +171,22 @@ struct svc_rpc_gss_cookedcred { #define CLIENT_HASH_SIZE 256 #define CLIENT_MAX 128 +u_int svc_rpc_gss_client_max = CLIENT_MAX; + +SYSCTL_NODE(_kern, OID_AUTO, rpc, CTLFLAG_RW, 0, "RPC"); +SYSCTL_NODE(_kern_rpc, OID_AUTO, gss, CTLFLAG_RW, 0, "GSS"); + +SYSCTL_UINT(_kern_rpc_gss, OID_AUTO, client_max, CTLFLAG_RW, + &svc_rpc_gss_client_max, 0, + "Max number of rpc-gss clients"); + +static u_int svc_rpc_gss_client_count; +SYSCTL_UINT(_kern_rpc_gss, OID_AUTO, client_count, CTLFLAG_RD, + &svc_rpc_gss_client_count, 0, + "Number of rpc-gss clients"); + struct svc_rpc_gss_client_list svc_rpc_gss_client_hash[CLIENT_HASH_SIZE]; struct svc_rpc_gss_client_list svc_rpc_gss_clients; -static size_t svc_rpc_gss_client_count; static uint32_t svc_rpc_gss_next_clientid = 1; static void @@ -669,7 +682,7 @@ svc_rpc_gss_timeout_clients(void) */ sx_xlock(&svc_rpc_gss_lock); client = TAILQ_LAST(&svc_rpc_gss_clients, svc_rpc_gss_client_list); - while (svc_rpc_gss_client_count > CLIENT_MAX && client != NULL) { + while (svc_rpc_gss_client_count > svc_rpc_gss_client_max && client != NULL) { svc_rpc_gss_forget_client_locked(client); sx_xunlock(&svc_rpc_gss_lock); svc_rpc_gss_release_client(client);