From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (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 D6D233D891E for ; Tue, 21 Apr 2026 14:45:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776782707; cv=none; b=dfsMhWyWsvhzCAiNG7SRS7NyJ4DZ7uTdo1aHyNxJh1yYHczQg2uJPjjjjCRHIU+xAeVv0Ddd5yV5jPPSa053oMfWAgCOpbYwB+QZ0ATYaCkSnKLtm3sMe/GsgNFR88O+mS3snHSiVmUQV4Jq9L9vlbGyYMQPJ1KhJvCM1s8Lw7I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776782707; c=relaxed/simple; bh=cCqJVCEYM2Fb/E3Ym760i7H8kvdV9UQAavdHxqRYSGw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ckvwZVfJTsLpEoV0aY9x4FxTESfCVLtvBhOSKlcNnCLlSrX17fPzD23aIyJd5MtElX1NizrdbRZM2jTPk2V2udWRmuzPkJBwSQIHGqyFMP1wvMi9KiyazBEbaGvRvjjpE+Nw9Y5P9OwglMklHzWJ+kivVXp1Wh5+9kGIh2nTpLA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=Sa0gafdX; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="Sa0gafdX" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=DLmLclcRfMzkW1jUxLXdbKibxhGKqa4xL3PsT8Bg+rk=; b=Sa0gafdXdvEy8kv9wV6FSByThH 9ldRnp/6TBdGRNIEt3dwfRE8+SSConuD7hZe7Sh7s+0yAHJImrTvhr9bldmN0SHIWIFqf67q0ppGy oG7YNoK4A/6SS9OVxKGeSzAKEVT00xG8z7hbb3rKHtZLgZx0YagPGFSNHZWZo9NN0ZKpkkKml2VH8 yIBIpOvufpjRTB1FhmNbDigizRM/yAq/hYllV0AAHRGxJn+k2z0nD7YNQsDJjptgCau2e3oR2cxdr HdEZR+SJiAQYpC6e53YfoNMIW+fZmoq+NAp+paGYj0N0nPJqALwAZdTaDj/JkNe4lfN2mT/AC+52s N/azwR5Q==; Received: from willy by casper.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1wFCLW-0000000AHKv-34sD; Tue, 21 Apr 2026 14:45:02 +0000 Date: Tue, 21 Apr 2026 15:45:02 +0100 From: Matthew Wilcox To: Peter Zijlstra Cc: K Prateek Nayak , John Stultz , "Borah, Chaitanya Kumar" , linux-kernel@vger.kernel.org, "intel-gfx@lists.freedesktop.org" , "intel-xe@lists.freedesktop.org" , "Kurmi, Suresh Kumar" , "Saarinen, Jani" , ravitejax.veesam@intel.com Subject: Re: Regression on linux-next (next-20260324 ) Message-ID: References: <20260327163100.GL3738010@noisy.programming.kicks-ass.net> <20260327164353.GM3739106@noisy.programming.kicks-ass.net> <20260330195037.GW2872@noisy.programming.kicks-ass.net> <20260420130318.GD3102924@noisy.programming.kicks-ass.net> <20260421101521.GO3102624@noisy.programming.kicks-ass.net> <95651a71-1adf-45ba-83eb-5744bc6d4a52@amd.com> <20260421143752.GD1064669@noisy.programming.kicks-ass.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260421143752.GD1064669@noisy.programming.kicks-ass.net> On Tue, Apr 21, 2026 at 04:37:52PM +0200, Peter Zijlstra wrote: > Argh, I see... yes. Perhaps something like the below though? This is a documentation bug. I thought it was supposed to add *after* pos, not before. So can we clear that up too? @@ -198,7 +198,7 @@ static inline void __mutex_clear_flag(struct mutex *lock, unsigned long flag) } /* - * Add @waiter to a given location in the lock wait_list and set the + * Add @waiter before a given location in the lock wait_list and set the * FLAG_WAITERS flag if it's the first waiter. */ static void