From owner-dev-commits-src-main@freebsd.org Wed Apr 28 15:06:07 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 4FB765F7181; Wed, 28 Apr 2021 15:06:07 +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 4FVhlz1dRkz4lpr; Wed, 28 Apr 2021 15:06:07 +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 2AB537E6A; Wed, 28 Apr 2021 15:06:07 +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 13SF67iS004901; Wed, 28 Apr 2021 15:06:07 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 13SF679b004900; Wed, 28 Apr 2021 15:06:07 GMT (envelope-from git) Date: Wed, 28 Apr 2021 15:06:07 GMT Message-Id: <202104281506.13SF679b004900@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Neel Chauhan Subject: git: efe7f12cd37b - main - linuxkpi: Implement rcu_replace_pointer() macro MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: nc X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: efe7f12cd37bf8f2538df387d565e7849112a598 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, 28 Apr 2021 15:06:07 -0000 The branch main has been updated by nc (ports committer): URL: https://cgit.FreeBSD.org/src/commit/?id=efe7f12cd37bf8f2538df387d565e7849112a598 commit efe7f12cd37bf8f2538df387d565e7849112a598 Author: Neel Chauhan AuthorDate: 2021-04-28 15:04:52 +0000 Commit: Neel Chauhan CommitDate: 2021-04-28 15:04:52 +0000 linuxkpi: Implement rcu_replace_pointer() macro This is needed for the drm-kmod 5.5 update. Reviewed by: hselasky (src) MFC after: 3 days Differential Revision: https://reviews.freebsd.org/D30025 --- sys/compat/linuxkpi/common/include/linux/rcupdate.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sys/compat/linuxkpi/common/include/linux/rcupdate.h b/sys/compat/linuxkpi/common/include/linux/rcupdate.h index a43736e0285f..ea97fecee53b 100644 --- a/sys/compat/linuxkpi/common/include/linux/rcupdate.h +++ b/sys/compat/linuxkpi/common/include/linux/rcupdate.h @@ -97,6 +97,13 @@ (uintptr_t)(v)); \ } while (0) +#define rcu_replace_pointer(rcu, ptr, c) \ +({ \ + typeof(ptr) __tmp = rcu_dereference_protected(rcu, c); \ + rcu_assign_pointer(rcu, ptr); \ + __tmp; \ +}) + #define rcu_swap_protected(rcu, ptr, c) do { \ typeof(ptr) p = rcu_dereference_protected(rcu, c); \ rcu_assign_pointer(rcu, ptr); \