From patchwork Wed Jan 18 15:44:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrzej Hajda X-Patchwork-Id: 13106580 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 892C2C46467 for ; Wed, 18 Jan 2023 15:48:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=nKz/PpG7Ag7tmXqmg3TmVQYTFkWkCgihvhrhqPiVKs8=; b=QqGLSyClnoaKhl ZbtyLVXeIZdcDo+V9D2DvG0BGbxK5jEArapLxwXcbEeCftMXcLFHGiBMocSW5Yo0+hJzV3mznnL2E bG2nEK+ohgDNQ4ipl4gj16xmi1nztXlD82YvzoAzoXaRXCwUei0qa+4G4HRELr6vOXbh6dyye22w2 aecrtIfQtl+ab4DsPAT5qihVhxZcKej6WMAaalLxog3UxYfhyU/lmanyEssOG4M/Ic0CRX5nQ0f1Z lhm2C7poX61bfGkrwcxLa4KfCT8YAi64PbccmisFCq77gWjz/NpDbxkSZd1dOqoUxDmeDWe/kLfI9 +zwr995D/KNkllfHl0WQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pIAeP-001eTc-D0; Wed, 18 Jan 2023 15:46:58 +0000 Received: from mga11.intel.com ([192.55.52.93]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pIAd1-001db1-3u; Wed, 18 Jan 2023 15:45:34 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1674056731; x=1705592731; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=5UIRHWiv1nZeLK1bOeYIY8HLBo0tEoLtywnXrKNCGWQ=; b=C3Rpi2TjCKzsSBJYxOLBwXrOybnXCWjfGq8L5dvQq8XBAUx2ptKyko7B 8ehOYrLniJSZjRqRfvkvx6A15RdHmx8f0yItH0Y0mHDwmH+DX5x5EdyLd 5c6PeY/Zgb5ZNzvZBt7+Grxe96t2/qhTFXn/gme1Rd/1/D8jKrOATF5hs 4Nqsscek2yCncrR4Y2uVkMcJiDIxGZ/bRs+7RnEXlxRIyhd9pNcfjTC34 8YALgXwokbyaUUDIfGv3M6PQZdnY/wzLaEKTBvdb6XxgUVWuxR/YSlVZk 0S3TS7o7L5kxrbeG0jJl/bSWk+oS6qk+Nxdw0uCXsxNAz2SWxPRK+VHS3 g==; X-IronPort-AV: E=McAfee;i="6500,9779,10594"; a="322701317" X-IronPort-AV: E=Sophos;i="5.97,226,1669104000"; d="scan'208";a="322701317" Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jan 2023 07:45:30 -0800 X-IronPort-AV: E=McAfee;i="6500,9779,10594"; a="661759330" X-IronPort-AV: E=Sophos;i="5.97,226,1669104000"; d="scan'208";a="661759330" Received: from lab-ah.igk.intel.com ([10.102.42.211]) by fmsmga007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Jan 2023 07:45:25 -0800 From: Andrzej Hajda To: linux-alpha@vger.kernel.org, linux-kernel@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, loongarch@lists.linux.dev, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-xtensa@linux-xtensa.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Cc: Andrzej Hajda , Arnd Bergmann , Rodrigo Vivi , Andrew Morton , Andy Shevchenko , Peter Zijlstra , Boqun Feng , Mark Rutland Subject: [PATCH v5 4/7] llist: simplify __llist_del_all Date: Wed, 18 Jan 2023 16:44:47 +0100 Message-Id: <20230118154450.73842-4-andrzej.hajda@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230118154450.73842-1-andrzej.hajda@intel.com> References: <20230118153529.57695-1-andrzej.hajda@intel.com> <20230118154450.73842-1-andrzej.hajda@intel.com> MIME-Version: 1.0 Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230118_074531_368251_D699A5E4 X-CRM114-Status: GOOD ( 10.56 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org llist_del_all uses xchg, let's use __xchg here. Signed-off-by: Andrzej Hajda Reviewed-by: Andi Shyti --- include/linux/llist.h | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/include/linux/llist.h b/include/linux/llist.h index 85bda2d02d65be..4dc1d185ea98ab 100644 --- a/include/linux/llist.h +++ b/include/linux/llist.h @@ -50,6 +50,7 @@ #include #include +#include #include #include @@ -241,10 +242,7 @@ static inline struct llist_node *llist_del_all(struct llist_head *head) static inline struct llist_node *__llist_del_all(struct llist_head *head) { - struct llist_node *first = head->first; - - head->first = NULL; - return first; + return __xchg(&head->first, NULL); } extern struct llist_node *llist_del_first(struct llist_head *head);