From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B8FC32FE063; Tue, 18 Nov 2025 07:24:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763450695; cv=none; b=m6d7nErSryawtU4OMg61UuZ5dVBB4BqglwWDQ4aWtftze9QBSaC5OLU99549EKImMtKffHE39JHwhKDtQwN1aXR/+LrTpm17SHEC4yyR0WEPe72sAFFt+mVjFHpK05EsCqWA3E6rqxUPDH5QF0mg4RdbkXhJv6BFNFCW4qk33UY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763450695; c=relaxed/simple; bh=jrjinFXbeDbMX2dy8EHh/ldqeCkJ7jxk4YEibZJS9Kc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=HoH1G0nO4PkeQnDKqBZDFO7sglur6hklTh6YiCKWNo2w62HZr7mf24LA5uRQXZBMfjHcz9q1XVSrbPQfx0UdXh96kD/8kdajyV3rM0X9DRRGhJMXBOJxTUA8nvxARGQbTJbjxUZLTQh2hVO9jM44/zcEnd5WhdprF+DpU7996LY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=24QE6ZMl; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=HemVkTlf; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="24QE6ZMl"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="HemVkTlf" Date: Tue, 18 Nov 2025 08:24:49 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1763450691; 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=I9vA6V+bN9GTdLdJJnTr5BmlcMkR802o3dcmS/oJ4PA=; b=24QE6ZMlr+aPw0mCJ5+WZU96Ur1bJED22ECyuR3qc6mknaLzxVccN1eBwGOEHnhDPXViIi vYgzPxjYImC932JHg5SRA4a/U7iRiyXlufjgEKN4WCeGZs0vyBoTiY57FYZhIlaLZIjOYL +alp7QvobezEF44LShBi4xm5QwByUm+lr5oir3v42WJgDcsNA1jjMRsN3D7i9qQlM6SH/w Q7jKWbml/XlgMaWqRO6CbEuEcKtaMflllcFEPJbOfhRueQ9ruRBPn/TM+ku3PXkSxlYXiS tZlF7YYrv2qXgzM7t0CdOvC+IbV/y+85xI811fdS8iBRo5Im02eMP11MJthBmA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1763450691; 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=I9vA6V+bN9GTdLdJJnTr5BmlcMkR802o3dcmS/oJ4PA=; b=HemVkTlfIKjmIexQaIi7tETka6Ixoo5dyRx/jz0Qu6Db6AH88jYgFE/IZlIzrJ2xfOoL2m 0DLyByvQHHJXBSDA== From: Sebastian Andrzej Siewior To: pengdonglin Cc: tj@kernel.org, tony.luck@intel.com, jani.nikula@linux.intel.com, ap420073@gmail.com, jv@jvosburgh.net, freude@linux.ibm.com, bcrl@kvack.org, trondmy@kernel.org, longman@redhat.com, kees@kernel.org, hdanton@sina.com, paulmck@kernel.org, linux-kernel@vger.kernel.org, linux-rt-devel@lists.linux.dev, linux-nfs@vger.kernel.org, linux-aio@kvack.org, linux-fsdevel@vger.kernel.org, linux-security-module@vger.kernel.org, netdev@vger.kernel.org, intel-gfx@lists.freedesktop.org, linux-wireless@vger.kernel.org, linux-acpi@vger.kernel.org, linux-s390@vger.kernel.org, cgroups@vger.kernel.org Subject: Re: [PATCH v3 00/14] Remove redundant rcu_read_lock/unlock() in spin_lock Message-ID: <20251118072449.PFe_yjOF@linutronix.de> References: <20250916044735.2316171-1-dolinux.peng@gmail.com> Precedence: bulk X-Mailing-List: linux-nfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20250916044735.2316171-1-dolinux.peng@gmail.com> On 2025-09-16 12:47:21 [+0800], pengdonglin wrote: Hi, > There is no need no explicitly start a RCU read section if one has already > been started implicitly by spin_lock(). > > Simplify the code and remove the inner rcu_read_lock() invocation. I'm not going argue if this is a good or not but: If you intend to get this merged I suggest you rebase your series (or what is left since I think a few patches got merged) on top of current tree and resend them individually targeting the relevant tree/ list. Otherwise everyone might think someone else is in charge of this big series. Sebastian