From owner-svn-src-stable-12@freebsd.org Wed Jan 2 16:34:37 2019 Return-Path: Delivered-To: svn-src-stable-12@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 C1F321427675; Wed, 2 Jan 2019 16:34:37 +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) 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 63BCC94AE9; Wed, 2 Jan 2019 16:34:37 +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 55110C521; Wed, 2 Jan 2019 16:34:37 +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 x02GYb5a087535; Wed, 2 Jan 2019 16:34:37 GMT (envelope-from markj@FreeBSD.org) Received: (from markj@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x02GYbhY087534; Wed, 2 Jan 2019 16:34:37 GMT (envelope-from markj@FreeBSD.org) Message-Id: <201901021634.x02GYbhY087534@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: markj set sender to markj@FreeBSD.org using -f From: Mark Johnston Date: Wed, 2 Jan 2019 16:34:37 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r342694 - stable/12/sys/riscv/riscv X-SVN-Group: stable-12 X-SVN-Commit-Author: markj X-SVN-Commit-Paths: stable/12/sys/riscv/riscv X-SVN-Commit-Revision: 342694 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 63BCC94AE9 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.96 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_SHORT(-0.96)[-0.963,0]; NEURAL_HAM_LONG(-1.00)[-0.998,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US] X-BeenThere: svn-src-stable-12@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for only the 12-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Jan 2019 16:34:37 -0000 Author: markj Date: Wed Jan 2 16:34:36 2019 New Revision: 342694 URL: https://svnweb.freebsd.org/changeset/base/342694 Log: MFC r342099: Avoid needless TLB invalidations in pmap_remove_pages(). Modified: stable/12/sys/riscv/riscv/pmap.c Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/riscv/riscv/pmap.c ============================================================================== --- stable/12/sys/riscv/riscv/pmap.c Wed Jan 2 16:33:49 2019 (r342693) +++ stable/12/sys/riscv/riscv/pmap.c Wed Jan 2 16:34:36 2019 (r342694) @@ -2754,9 +2754,10 @@ pmap_remove_pages(pmap_t pmap) l3 = pmap_l2_to_l3(l2, pv->pv_va); tl3 = pmap_load(l3); -/* - * We cannot remove wired pages from a process' mapping at this time - */ + /* + * We cannot remove wired pages from a + * process' mapping at this time. + */ if (tl3 & PTE_SW_WIRED) { allfree = 0; continue; @@ -2775,7 +2776,6 @@ pmap_remove_pages(pmap_t pmap) (uintmax_t)tl3)); pmap_load_clear(l3); - pmap_invalidate_page(pmap, pv->pv_va); /* * Update the vm_page_t clean/reference bits. @@ -2804,9 +2804,9 @@ pmap_remove_pages(pmap_t pmap) free_pv_chunk(pc); } } - pmap_invalidate_all(pmap); if (lock != NULL) rw_wunlock(lock); + pmap_invalidate_all(pmap); rw_runlock(&pvh_global_lock); PMAP_UNLOCK(pmap); vm_page_free_pages_toq(&free, false);