From owner-svn-src-head@freebsd.org Wed Aug 5 19:34:13 2020 Return-Path: Delivered-To: svn-src-head@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id EA85C3A7616; Wed, 5 Aug 2020 19:34:13 +0000 (UTC) (envelope-from mjg@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) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 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 4BMMJ55v3wz48B9; Wed, 5 Aug 2020 19:34:13 +0000 (UTC) (envelope-from mjg@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 AEF871B19C; Wed, 5 Aug 2020 19:34:13 +0000 (UTC) (envelope-from mjg@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 075JYDI5086768; Wed, 5 Aug 2020 19:34:13 GMT (envelope-from mjg@FreeBSD.org) Received: (from mjg@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 075JYDL0086767; Wed, 5 Aug 2020 19:34:13 GMT (envelope-from mjg@FreeBSD.org) Message-Id: <202008051934.075JYDL0086767@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: mjg set sender to mjg@FreeBSD.org using -f From: Mateusz Guzik Date: Wed, 5 Aug 2020 19:34:13 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r363931 - head/sys/kern X-SVN-Group: head X-SVN-Commit-Author: mjg X-SVN-Commit-Paths: head/sys/kern X-SVN-Commit-Revision: 363931 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.33 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 Aug 2020 19:34:14 -0000 Author: mjg Date: Wed Aug 5 19:34:13 2020 New Revision: 363931 URL: https://svnweb.freebsd.org/changeset/base/363931 Log: vfs hash: annotate the lock with __exclusive_cache_line Note the code does not scale in the current form. Modified: head/sys/kern/vfs_hash.c Modified: head/sys/kern/vfs_hash.c ============================================================================== --- head/sys/kern/vfs_hash.c Wed Aug 5 19:15:59 2020 (r363930) +++ head/sys/kern/vfs_hash.c Wed Aug 5 19:34:13 2020 (r363931) @@ -43,7 +43,7 @@ static MALLOC_DEFINE(M_VFS_HASH, "vfs_hash", "VFS hash static LIST_HEAD(vfs_hash_head, vnode) *vfs_hash_tbl; static LIST_HEAD(,vnode) vfs_hash_side; static u_long vfs_hash_mask; -static struct rwlock vfs_hash_lock; +static struct rwlock __exclusive_cache_line vfs_hash_lock; static void vfs_hashinit(void *dummy __unused)