From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-14.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C9E02C433E7 for ; Mon, 12 Oct 2020 17:08:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 93EF420878 for ; Mon, 12 Oct 2020 17:08:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="28bcxx51"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="PZaApUfb" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404073AbgJLRIe (ORCPT ); Mon, 12 Oct 2020 13:08:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35126 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2403845AbgJLRI3 (ORCPT ); Mon, 12 Oct 2020 13:08:29 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [IPv6:2a0a:51c0:0:12e:550::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6997CC0613D0; Mon, 12 Oct 2020 10:08:29 -0700 (PDT) Date: Mon, 12 Oct 2020 17:08:27 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1602522507; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=kD4AE9Xjhy1xBbpVilqLgTZel6YalRUgINSHXo6BGKk=; b=28bcxx51ftZbCchvyRprFM2u8Ij41aWJ1fC28W2ROT3ZV8giFDXjg+Jpmj6miwtDDq6xuy UbZDdXv9a3Q5IebGzHfPv9eHUvohU473+8CKzgMaZBDEPWxglhVtcnaSgddutPZiWOkSFo Y3c5MjvXD/HWk/jQezsrGBYr2Gb9pB6mvUuQ8At8DtgyZxV6/fHVjqYPexsyWHpy0ybPia ubVx4sDt9ZG2h6aPzUmkwn5OC4mDe4fiJqUOQrLcwH92W1LDu3mOUTwbHUo+fGqLVul89S /IQPSXUG3qkCRPWlhNYPaV+uGC3v7v0FeBb7yMRdRGFks9oXEOZL02ZgS9VrwA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1602522507; h=from:from:sender:sender:reply-to:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=kD4AE9Xjhy1xBbpVilqLgTZel6YalRUgINSHXo6BGKk=; b=PZaApUfb0QgzMnyDPTlugskiKtbiB7ywc7OOujyQ4XgIo+keahmSYeon+COwzdXKAVPx7c KnZx0viGIrYDipBQ== From: "tip-bot2 for Peter Zijlstra" Sender: tip-bot2@linutronix.de Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: perf/kprobes] llist: Add nonatomic __llist_add() and __llist_dell_all() Cc: "Peter Zijlstra (Intel)" , Masami Hiramatsu , Ingo Molnar , x86 , LKML In-Reply-To: <159870619318.1229682.13027387548510028721.stgit@devnote2> References: <159870619318.1229682.13027387548510028721.stgit@devnote2> MIME-Version: 1.0 Message-ID: <160252250706.7002.737254513470475787.tip-bot2@tip-bot2> Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the perf/kprobes branch of tip: Commit-ID: 476c5818c37a7828d558f34ae01f0c32f8bfadde Gitweb: https://git.kernel.org/tip/476c5818c37a7828d558f34ae01f0c32f8bfadde Author: Peter Zijlstra AuthorDate: Sat, 29 Aug 2020 22:03:13 +09:00 Committer: Ingo Molnar CommitterDate: Mon, 12 Oct 2020 18:27:27 +02:00 llist: Add nonatomic __llist_add() and __llist_dell_all() We'll use these in the new, lockless kretprobes code. Signed-off-by: Peter Zijlstra (Intel) Signed-off-by: Masami Hiramatsu Signed-off-by: Ingo Molnar Link: https://lore.kernel.org/r/159870619318.1229682.13027387548510028721.stgit@devnote2 --- drivers/gpu/drm/i915/i915_request.c | 6 ------ include/linux/llist.h | 23 +++++++++++++++++++++++ 2 files changed, 23 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c index 0b2fe55..0e851b9 100644 --- a/drivers/gpu/drm/i915/i915_request.c +++ b/drivers/gpu/drm/i915/i915_request.c @@ -357,12 +357,6 @@ void i915_request_retire_upto(struct i915_request *rq) } while (i915_request_retire(tmp) && tmp != rq); } -static void __llist_add(struct llist_node *node, struct llist_head *head) -{ - node->next = head->first; - head->first = node; -} - static struct i915_request * const * __engine_active(struct intel_engine_cs *engine) { diff --git a/include/linux/llist.h b/include/linux/llist.h index 2e9c721..24f207b 100644 --- a/include/linux/llist.h +++ b/include/linux/llist.h @@ -197,6 +197,16 @@ static inline struct llist_node *llist_next(struct llist_node *node) extern bool llist_add_batch(struct llist_node *new_first, struct llist_node *new_last, struct llist_head *head); + +static inline bool __llist_add_batch(struct llist_node *new_first, + struct llist_node *new_last, + struct llist_head *head) +{ + new_last->next = head->first; + head->first = new_first; + return new_last->next == NULL; +} + /** * llist_add - add a new entry * @new: new entry to be added @@ -209,6 +219,11 @@ static inline bool llist_add(struct llist_node *new, struct llist_head *head) return llist_add_batch(new, new, head); } +static inline bool __llist_add(struct llist_node *new, struct llist_head *head) +{ + return __llist_add_batch(new, new, head); +} + /** * llist_del_all - delete all entries from lock-less list * @head: the head of lock-less list to delete all entries @@ -222,6 +237,14 @@ static inline struct llist_node *llist_del_all(struct llist_head *head) return xchg(&head->first, NULL); } +static inline struct llist_node *__llist_del_all(struct llist_head *head) +{ + struct llist_node *first = head->first; + + head->first = NULL; + return first; +} + extern struct llist_node *llist_del_first(struct llist_head *head); struct llist_node *llist_reverse_order(struct llist_node *head);