From owner-dev-commits-src-all@freebsd.org Sat May 1 00:57:31 2021 Return-Path: Delivered-To: dev-commits-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 B34FB62FAC9; Sat, 1 May 2021 00:57:31 +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 4FX9nR4h0wz3rLK; Sat, 1 May 2021 00:57:31 +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 9386364B6; Sat, 1 May 2021 00:57:31 +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 1410vVAs074363; Sat, 1 May 2021 00:57:31 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 1410vVEB074362; Sat, 1 May 2021 00:57:31 GMT (envelope-from git) Date: Sat, 1 May 2021 00:57:31 GMT Message-Id: <202105010057.1410vVEB074362@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org From: Neel Chauhan Subject: git: bbdd27a5bc84 - stable/13 - 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/stable/13 X-Git-Reftype: branch X-Git-Commit: bbdd27a5bc8496b270d9f39d97f984d092411241 Auto-Submitted: auto-generated X-BeenThere: dev-commits-src-all@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Commit messages for all branches of the src repository List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 01 May 2021 00:57:31 -0000 The branch stable/13 has been updated by nc (ports committer): URL: https://cgit.FreeBSD.org/src/commit/?id=bbdd27a5bc8496b270d9f39d97f984d092411241 commit bbdd27a5bc8496b270d9f39d97f984d092411241 Author: Neel Chauhan AuthorDate: 2021-04-28 15:04:52 +0000 Commit: Neel Chauhan CommitDate: 2021-05-01 00:54:42 +0000 linuxkpi: Implement rcu_replace_pointer() macro This is needed for the drm-kmod 5.5 update. Reviewed by: hselasky (src) Differential Revision: https://reviews.freebsd.org/D30025 (cherry picked from commit efe7f12cd37bf8f2538df387d565e7849112a598) --- 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); \