From owner-svn-src-all@freebsd.org Wed Jun 10 23:52:40 2020 Return-Path: Delivered-To: svn-src-all@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 847F8342685; Wed, 10 Jun 2020 23:52:40 +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 TLSv1.3 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 49j3h80Z01z3TyG; Wed, 10 Jun 2020 23:52:39 +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 E1048EDBD; Wed, 10 Jun 2020 23:52:39 +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 05ANqdkC073366; Wed, 10 Jun 2020 23:52:39 GMT (envelope-from markj@FreeBSD.org) Received: (from markj@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 05ANqde3073365; Wed, 10 Jun 2020 23:52:39 GMT (envelope-from markj@FreeBSD.org) Message-Id: <202006102352.05ANqde3073365@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: markj set sender to markj@FreeBSD.org using -f From: Mark Johnston Date: Wed, 10 Jun 2020 23:52:39 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r362036 - head/sys/compat/linux X-SVN-Group: head X-SVN-Commit-Author: markj X-SVN-Commit-Paths: head/sys/compat/linux X-SVN-Commit-Revision: 362036 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.33 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: Wed, 10 Jun 2020 23:52:40 -0000 Author: markj Date: Wed Jun 10 23:52:39 2020 New Revision: 362036 URL: https://svnweb.freebsd.org/changeset/base/362036 Log: Add a comment reflecting the commit log for r361945. Suggested by: alc Reviewed by: alc MFC with: r361945 Modified: head/sys/compat/linux/linux_misc.c Modified: head/sys/compat/linux/linux_misc.c ============================================================================== --- head/sys/compat/linux/linux_misc.c Wed Jun 10 23:52:29 2020 (r362035) +++ head/sys/compat/linux/linux_misc.c Wed Jun 10 23:52:39 2020 (r362036) @@ -167,6 +167,12 @@ linux_sysinfo(struct thread *td, struct linux_sysinfo_ sysinfo.totalram = physmem * PAGE_SIZE; sysinfo.freeram = sysinfo.totalram - vm_wire_count() * PAGE_SIZE; + /* + * sharedram counts pages allocated to named, swap-backed objects such + * as shared memory segments and tmpfs files. There is no cheap way to + * compute this, so just leave the field unpopulated. Linux itself only + * started setting this field in the 3.x timeframe. + */ sysinfo.sharedram = 0; sysinfo.bufferram = 0;