From owner-svn-src-head@freebsd.org Wed Dec 5 17:06:02 2018 Return-Path: Delivered-To: svn-src-head@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 D3B6013213CE; Wed, 5 Dec 2018 17:06:01 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 2531A7DE11; Wed, 5 Dec 2018 17:06:01 +0000 (UTC) (envelope-from markj@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 05E7C174AB; Wed, 5 Dec 2018 17:06:01 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id wB5H60vn088851; Wed, 5 Dec 2018 17:06:00 GMT (envelope-from markj@FreeBSD.org) Received: (from markj@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id wB5H60eE088848; Wed, 5 Dec 2018 17:06:00 GMT (envelope-from markj@FreeBSD.org) Message-Id: <201812051706.wB5H60eE088848@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: markj set sender to markj@FreeBSD.org using -f From: Mark Johnston Date: Wed, 5 Dec 2018 17:06:00 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r341595 - in head/sys: netinet netinet6 X-SVN-Group: head X-SVN-Commit-Author: markj X-SVN-Commit-Paths: in head/sys: netinet netinet6 X-SVN-Commit-Revision: 341595 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 2531A7DE11 X-Spamd-Result: default: False [-0.96 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-0.52)[-0.521,0]; NEURAL_HAM_LONG(-0.03)[-0.031,0]; NEURAL_HAM_SHORT(-0.41)[-0.413,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-Rspamd-Server: mx1.freebsd.org X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Dec 2018 17:06:02 -0000 Author: markj Date: Wed Dec 5 17:06:00 2018 New Revision: 341595 URL: https://svnweb.freebsd.org/changeset/base/341595 Log: Clamp the INPCB port hash tables to IPPORT_MAX + 1 chains. Memory beyond that limit was previously unused, wasting roughly 1MB per 8GB of RAM. Also retire INP_PCBLBGROUP_PORTHASH, which was identical to INP_PCBPORTHASH. Reviewed by: glebius MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D17803 Modified: head/sys/netinet/in_pcb.c head/sys/netinet/in_pcb.h head/sys/netinet6/in6_pcb.c Modified: head/sys/netinet/in_pcb.c ============================================================================== --- head/sys/netinet/in_pcb.c Wed Dec 5 16:55:45 2018 (r341594) +++ head/sys/netinet/in_pcb.c Wed Dec 5 17:06:00 2018 (r341595) @@ -339,8 +339,7 @@ in_pcbinslbgrouphash(struct inpcb *inp) } #endif - idx = INP_PCBLBGROUP_PORTHASH(inp->inp_lport, - pcbinfo->ipi_lbgrouphashmask); + idx = INP_PCBPORTHASH(inp->inp_lport, pcbinfo->ipi_lbgrouphashmask); hdr = &pcbinfo->ipi_lbgrouphashbase[idx]; CK_LIST_FOREACH(grp, hdr, il_list) { if (grp->il_vflag == inp->inp_vflag && @@ -397,9 +396,7 @@ in_pcbremlbgrouphash(struct inpcb *inp) INP_HASH_WLOCK_ASSERT(pcbinfo); hdr = &pcbinfo->ipi_lbgrouphashbase[ - INP_PCBLBGROUP_PORTHASH(inp->inp_lport, - pcbinfo->ipi_lbgrouphashmask)]; - + INP_PCBPORTHASH(inp->inp_lport, pcbinfo->ipi_lbgrouphashmask)]; CK_LIST_FOREACH(grp, hdr, il_list) { for (i = 0; i < grp->il_inpcnt; ++i) { if (grp->il_inp[i] != inp) @@ -439,6 +436,8 @@ in_pcbinfo_init(struct inpcbinfo *pcbinfo, const char char *inpcbzone_name, uma_init inpcbzone_init, u_int hashfields) { + porthash_nelements = imin(porthash_nelements, IPPORT_MAX + 1); + INP_INFO_LOCK_INIT(pcbinfo, name); INP_HASH_LOCK_INIT(pcbinfo, "pcbinfohash"); /* XXXRW: argument? */ INP_LIST_LOCK_INIT(pcbinfo, "pcbinfolist"); @@ -452,7 +451,7 @@ in_pcbinfo_init(struct inpcbinfo *pcbinfo, const char &pcbinfo->ipi_hashmask); pcbinfo->ipi_porthashbase = hashinit(porthash_nelements, M_PCB, &pcbinfo->ipi_porthashmask); - pcbinfo->ipi_lbgrouphashbase = hashinit(hash_nelements, M_PCB, + pcbinfo->ipi_lbgrouphashbase = hashinit(porthash_nelements, M_PCB, &pcbinfo->ipi_lbgrouphashmask); #ifdef PCBGROUP in_pcbgroup_init(pcbinfo, hashfields, hash_nelements); @@ -1950,8 +1949,8 @@ in_pcblookup_lbgroup(const struct inpcbinfo *pcbinfo, INP_HASH_LOCK_ASSERT(pcbinfo); - hdr = &pcbinfo->ipi_lbgrouphashbase[INP_PCBLBGROUP_PORTHASH(lport, - pcbinfo->ipi_lbgrouphashmask)]; + hdr = &pcbinfo->ipi_lbgrouphashbase[ + INP_PCBPORTHASH(lport, pcbinfo->ipi_lbgrouphashmask)]; /* * Order of socket selection: Modified: head/sys/netinet/in_pcb.h ============================================================================== --- head/sys/netinet/in_pcb.h Wed Dec 5 16:55:45 2018 (r341594) +++ head/sys/netinet/in_pcb.h Wed Dec 5 17:06:00 2018 (r341595) @@ -688,8 +688,6 @@ int inp_so_options(const struct inpcb *inp); (((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) & (mask)) #define INP_PCBPORTHASH(lport, mask) \ (ntohs((lport)) & (mask)) -#define INP_PCBLBGROUP_PORTHASH(lport, mask) \ - (ntohs((lport)) & (mask)) #define INP_PCBLBGROUP_PKTHASH(faddr, lport, fport) \ ((faddr) ^ ((faddr) >> 16) ^ ntohs((lport) ^ (fport))) #define INP6_PCBHASHKEY(faddr) ((faddr)->s6_addr32[3]) Modified: head/sys/netinet6/in6_pcb.c ============================================================================== --- head/sys/netinet6/in6_pcb.c Wed Dec 5 16:55:45 2018 (r341594) +++ head/sys/netinet6/in6_pcb.c Wed Dec 5 17:06:00 2018 (r341595) @@ -880,8 +880,8 @@ in6_pcblookup_lbgroup(const struct inpcbinfo *pcbinfo, INP_HASH_LOCK_ASSERT(pcbinfo); - hdr = &pcbinfo->ipi_lbgrouphashbase[INP_PCBLBGROUP_PORTHASH( - lport, pcbinfo->ipi_lbgrouphashmask)]; + hdr = &pcbinfo->ipi_lbgrouphashbase[ + INP_PCBPORTHASH(lport, pcbinfo->ipi_lbgrouphashmask)]; /* * Order of socket selection: