From nobody Thu Mar 20 19:53:56 2025 X-Original-To: dev-commits-src-main@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 4ZJbqn2rNMz5rJHr; Thu, 20 Mar 2025 19:53:57 +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 "R10" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4ZJbqm5yR3z3MkV; Thu, 20 Mar 2025 19:53:56 +0000 (UTC) (envelope-from git@FreeBSD.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1742500436; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=MafCZCL/vd1SsFGUigngnYJDmt2lYOlmOJ88HFsam+M=; b=m4Yl+Md8Shk2y9ivycA0vTBtDR7UepkPFPaLwk2jJgPQOJ73GFjHZDnrRNRvzkzBixiYBh x3nWnXF7uCHNOFI835niFTaizBP5+up1VndjkgKtSb2oGeLin6BsF7caWjaYF37NWg2JXf v9/jjWGydIZRstyb/RQVPxFM95J7dPmM5izw6t9EbazQKTuPMIpZzjmxxzyJt/Mdlsq7Mo rK0FLQM5gjp5g5ifXTCNK2piJvX8OGeM8TroTDkyJ4Zbx74i/djm2NMj/O8v4ZaVnp15yq xKwn327QWS2hapeZaDCQNB+IHSRdiGX/IAD5xl3kKHVaN9j0HF1sn6X1Yvf1IQ== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1742500436; a=rsa-sha256; cv=none; b=q22pQUE4GhVX7ehVnYvcnWx2cz81yofvQHCVTyDoe+m6C42A6cAib9cCvb1DMfan8HxTKJ 48q0+i5hY5Zi3wRpzM4k6a2bT7BBGpefhVzx6C6PAfx00hhcEXx/hnyZkJcPEdyTeuiTNd k8ZLfkuWkre6VjvMLGBAqR0bYpYZb2ZmT3fyB77FlGiEMJ4cHqQY+1zB0wBe74+U//G8gH 7Y+TUHZK+hGw2G7LFB7qauP/TKApK75KOvyxev67TYhmIPJnvfbQD5SZYUgS9flhvj7u2f 8s7uK5UiQu7UiPYMN7gDDyYRgK6Hi9/uqdD9yYDoK7W8efzOAAyPTgthythNsw== ARC-Authentication-Results: i=1; mx1.freebsd.org; none ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1742500436; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=MafCZCL/vd1SsFGUigngnYJDmt2lYOlmOJ88HFsam+M=; b=PApb5BOfRTpuaZbUMIGBaSg0K9uYNbDzMmChqxcWy1Cftos0zNxBbU+SJK4SZhRgFxGzoK p863qKarLXD46xB8rhk5aksJc/foWqyAd0az59BFJAaqAbiJ4AYFnUFVStML7Nq666kLmk bYtq4yaYhM16yl7j2JOORWBiirfu1lgL8Zt/mvQ+EVt75LRM4rSwZQ6jzqzsJr0VQgomWr KTad8uH9zaLxpkGgvuoJuco8bnkT+uAfq+mlzN9/C7Tl+m7M63i7MejdildaLod53evG2G ExIE22ZinxssNM1R0LpnP5hWrkKuBEY3Xu/jhH8IuKZFoZ581Wd1tAh495kYfg== 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 4ZJbqm2xScz1JZ5; Thu, 20 Mar 2025 19:53:56 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.18.1/8.18.1) with ESMTP id 52KJruKl063955; Thu, 20 Mar 2025 19:53:56 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.18.1/8.18.1/Submit) id 52KJruFv063952; Thu, 20 Mar 2025 19:53:56 GMT (envelope-from git) Date: Thu, 20 Mar 2025 19:53:56 GMT Message-Id: <202503201953.52KJruFv063952@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: =?utf-8?Q?Jean-S=C3=A9bastien?= =?utf-8?Q?P=C3=A9dron?= Subject: git: 09ba3ece1817 - main - linuxkpi: Add `list_for_each_rcu()` List-Id: Commit messages for the main branch of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-main@freebsd.org Sender: owner-dev-commits-src-main@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: dumbbell X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 09ba3ece18177c6ed96f8be75c6d648e9d20acdf Auto-Submitted: auto-generated The branch main has been updated by dumbbell: URL: https://cgit.FreeBSD.org/src/commit/?id=09ba3ece18177c6ed96f8be75c6d648e9d20acdf commit 09ba3ece18177c6ed96f8be75c6d648e9d20acdf Author: Jean-Sébastien Pédron AuthorDate: 2025-02-22 18:25:51 +0000 Commit: Jean-Sébastien Pédron CommitDate: 2025-03-20 19:43:44 +0000 linuxkpi: Add `list_for_each_rcu()` This is a variant of `list_for_each()` where the next item in the list is read using `rcu_dereference()`. This is used by the i915 DRM driver starting with Linux 6.8. Reviewed by: emaste Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D49375 --- sys/compat/linuxkpi/common/include/linux/list.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/sys/compat/linuxkpi/common/include/linux/list.h b/sys/compat/linuxkpi/common/include/linux/list.h index eecb517d780e..a6c74a324dac 100644 --- a/sys/compat/linuxkpi/common/include/linux/list.h +++ b/sys/compat/linuxkpi/common/include/linux/list.h @@ -234,6 +234,11 @@ list_del_init(struct list_head *entry) for (; &p->field != (h); \ p = list_prev_entry(p, field)) +#define list_for_each_rcu(p, head) \ + for (p = rcu_dereference((head)->next); \ + p != (head); \ + p = rcu_dereference((p)->next)) + static inline void list_add(struct list_head *new, struct list_head *head) {