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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D349CC433F5 for ; Fri, 12 Nov 2021 07:29:35 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 6A03760F5B for ; Fri, 12 Nov 2021 07:29:35 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 6A03760F5B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linutronix.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id E94FA6B0074; Fri, 12 Nov 2021 02:29:34 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id E43B96B0078; Fri, 12 Nov 2021 02:29:34 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id D32A46B007B; Fri, 12 Nov 2021 02:29:34 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0141.hostedemail.com [216.40.44.141]) by kanga.kvack.org (Postfix) with ESMTP id C0E756B0074 for ; Fri, 12 Nov 2021 02:29:34 -0500 (EST) Received: from smtpin19.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 74EA77D3BC for ; Fri, 12 Nov 2021 07:29:34 +0000 (UTC) X-FDA: 78799452900.19.0951E19 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by imf31.hostedemail.com (Postfix) with ESMTP id E49201056AA5 for ; Fri, 12 Nov 2021 07:28:13 +0000 (UTC) Date: Fri, 12 Nov 2021 08:28:24 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1636702106; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=IK38yM/jKnSbtEguM50AxNnoSZ2HY+Y+D8snmXi9P/4=; b=2hCa1dnrwZuktmorxjmngeuhpGDmKWbYIx8iMP4NlQpeQmLWvB2ELNUl7sq5TEmtgkngSI fQ9WBByoK/LSzEhWwhGiKSeQITnxZhwXXFObCCJa8xWEyUyzSia8UkwkX9Ovh6dvs1D6RZ ON70Ufw/qiNgjgY0OfgPNZD75kF/+WJ07r6WABZJjD7Rei/jM7xAghNZWuPKNe5sOVcV0b RdyXEjgVk8tAjt2ipYPfWE5OeWiOGECMd3p99kKtbNv6uHaH91zHmhgfloCE5nyv91yh15 esmiuhRCbsyc/cApohuNKelli2XHEfkUjKRKpt+ue1Dd8LEOfmLJvgFYocsZog== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1636702106; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=IK38yM/jKnSbtEguM50AxNnoSZ2HY+Y+D8snmXi9P/4=; b=uBzPLMO9UN5e5IwLkdJ1S11XhRx/gQfUHAEPuQQu1F5Bg4VJbiqbhen0XyQ+N3wvy/084j +8wWD0UEneGh3cCg== From: Sebastian Andrzej Siewior To: Minchan Kim Cc: Andrew Morton , Sergey Senozhatsky , linux-mm , Thomas Gleixner Subject: Re: [PATCH 7/8] zsmalloc: replace per zpage lock with pool->migrate_lock Message-ID: <20211112072824.5yl6gs5nubhjfpym@linutronix.de> References: <20211110185433.1981097-1-minchan@kernel.org> <20211110185433.1981097-8-minchan@kernel.org> <20211111090727.eq67hxfpux23dagd@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: E49201056AA5 X-Stat-Signature: 7bqumeo47amjgrrw75h6tfn3fk51c4bn Authentication-Results: imf31.hostedemail.com; dkim=pass header.d=linutronix.de header.s=2020 header.b=2hCa1dnr; dkim=pass header.d=linutronix.de header.s=2020e header.b=uBzPLMO9; spf=pass (imf31.hostedemail.com: domain of bigeasy@linutronix.de designates 193.142.43.55 as permitted sender) smtp.mailfrom=bigeasy@linutronix.de; dmarc=pass (policy=none) header.from=linutronix.de X-HE-Tag: 1636702093-708071 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 2021-11-11 15:11:34 [-0800], Minchan Kim wrote: > From e0bfc5185bbd15c651a7a367b6d053b8c88b1e01 Mon Sep 17 00:00:00 2001 > From: Minchan Kim > Date: Tue, 19 Oct 2021 15:34:09 -0700 > Subject: [PATCH] locking/rwlocks: introduce write_lock_nested > > Signed-off-by: Minchan Kim > --- > include/linux/rwlock.h | 6 ++++++ > include/linux/rwlock_api_smp.h | 9 +++++++++ > include/linux/spinlock_api_up.h | 1 + > kernel/locking/spinlock.c | 6 ++++++ > 4 files changed, 22 insertions(+) > This looks about right. Could you also please wire up PREEMPT_RT's version of it, that would be in include/linux/rwlock_rt.h kernel/locking/spinlock_rt.c Sebastian