From owner-dev-commits-src-main@freebsd.org Wed Feb 10 16:10:36 2021 Return-Path: Delivered-To: dev-commits-src-main@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 3D03F54B0CF; Wed, 10 Feb 2021 16:10:36 +0000 (UTC) (envelope-from git@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 "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4DbPqw1JLcz4g96; Wed, 10 Feb 2021 16:10:36 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (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 did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 1FABA20A3C; Wed, 10 Feb 2021 16:10:36 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 11AGAa0f093938; Wed, 10 Feb 2021 16:10:36 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 11AGAadK093936; Wed, 10 Feb 2021 16:10:36 GMT (envelope-from git) Date: Wed, 10 Feb 2021 16:10:36 GMT Message-Id: <202102101610.11AGAadK093936@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Mark Johnston Subject: git: 5c18744ea9b9 - main - vm: Honour the "noreuse" flag to vm_page_unwire_managed() MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: markj X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 5c18744ea9b94cb6a9a091a900fa4999868736e1 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-main@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for the main branch of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Feb 2021 16:10:36 -0000 The branch main has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=5c18744ea9b94cb6a9a091a900fa4999868736e1 commit 5c18744ea9b94cb6a9a091a900fa4999868736e1 Author: Mark Johnston AuthorDate: 2021-02-10 16:10:27 +0000 Commit: Mark Johnston CommitDate: 2021-02-10 16:10:27 +0000 vm: Honour the "noreuse" flag to vm_page_unwire_managed() This flag indicates that the page should be enqueued near the head of the inactive queue, skipping the LRU queue. It is used when unwiring pages from the buffer cache following direct I/O or after I/O when POSIX_FADV_NOREUSE or _DONTNEED advice was specified, or when sendfile(SF_NOCACHE) completes. For the direct I/O and sendfile cases we only enqueue the page if we decide not to free it, typically because it's mapped. Pass "noreuse" through to vm_page_release_toq() so that we actually honour the desired LRU policy for these scenarios. Reported by: bdrewery Reviewed by: alc, kib MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D28555 --- sys/vm/vm_page.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sys/vm/vm_page.c b/sys/vm/vm_page.c index e668bbdc6178..c36b8cdc5762 100644 --- a/sys/vm/vm_page.c +++ b/sys/vm/vm_page.c @@ -3989,7 +3989,7 @@ vm_page_unwire_managed(vm_page_t m, uint8_t nqueue, bool noreuse) * (i.e., the VPRC_OBJREF bit is clear), we only need to * clear leftover queue state. */ - vm_page_release_toq(m, nqueue, false); + vm_page_release_toq(m, nqueue, noreuse); } else if (old == 1) { vm_page_aflag_clear(m, PGA_DEQUEUE); }