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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id D83ECD13570 for ; Mon, 28 Oct 2024 08:55:14 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 663A66B0088; Mon, 28 Oct 2024 04:55:14 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 614286B008C; Mon, 28 Oct 2024 04:55:14 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 502F46B0092; Mon, 28 Oct 2024 04:55:14 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0015.hostedemail.com [216.40.44.15]) by kanga.kvack.org (Postfix) with ESMTP id 330546B0088 for ; Mon, 28 Oct 2024 04:55:14 -0400 (EDT) Received: from smtpin16.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay06.hostedemail.com (Postfix) with ESMTP id 297F7AC111 for ; Mon, 28 Oct 2024 08:54:29 +0000 (UTC) X-FDA: 82722401244.16.3391925 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by imf08.hostedemail.com (Postfix) with ESMTP id 4010F16000F for ; Mon, 28 Oct 2024 08:54:55 +0000 (UTC) Authentication-Results: imf08.hostedemail.com; dkim=none; dmarc=none; spf=pass (imf08.hostedemail.com: domain of hch@lst.de designates 213.95.11.211 as permitted sender) smtp.mailfrom=hch@lst.de ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1730105555; h=from:from:sender: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: in-reply-to:in-reply-to:references:references; bh=kLA/lkXLwzdki11fHwX8/rZ3POKVHr3Ht5GY11Putvg=; b=0kclyGDRO5fZPzVjn2Luf9bI+XUP2WNC7nRo6/HmUCx1GgRICmiTwBcl2CU+T7XF5qc6Wc ykNxlY7rNKBiaLtyYmNDXVxNiV3MKls3FTjw07wytNpYpGvDIBGKKOtypuB0sjBeuzMv9X /npl1m88gxNt7CIrGouQqlOLbM9vEvA= ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1730105555; a=rsa-sha256; cv=none; b=VS2yW+Q9NAwhbXUDjagULslRINvJGfvt2KNt5+zpiT6hmoY/kRS5F7CtquU3+4zWO6I0a2 rzIGxHGDp2SwF6VW4iewPIlSsrlofBv4/3ET/dS4hkRm5/pd2cliJ3iu1N1DK95Wta6Adj aHqC2nxldq6Zzi5N3cWWuVOykY6mck8= ARC-Authentication-Results: i=1; imf08.hostedemail.com; dkim=none; dmarc=none; spf=pass (imf08.hostedemail.com: domain of hch@lst.de designates 213.95.11.211 as permitted sender) smtp.mailfrom=hch@lst.de Received: by verein.lst.de (Postfix, from userid 2407) id CE52868BEB; Mon, 28 Oct 2024 09:55:06 +0100 (CET) Date: Mon, 28 Oct 2024 09:55:06 +0100 From: Christoph Hellwig To: Hugh Dickins Cc: Alexander Viro , Andrew Morton , Christian Brauner , Matthew Wilcox , Christoph Hellwig , Kent Overstreet , "Darrick J. Wong" , Thomas Gleixner , Peter Zijlstra , linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH] iov_iter: fix copy_page_from_iter_atomic() if KMAP_LOCAL_FORCE_MAP Message-ID: <20241028085506.GA27771@lst.de> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) X-Rspamd-Queue-Id: 4010F16000F X-Stat-Signature: ys5wqmiuwqodgs33fnn3zca7k1gya1jx X-Rspamd-Server: rspam09 X-Rspam-User: X-HE-Tag: 1730105695-363622 X-HE-Meta: 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 27aWfDcn d7emL4em4WBR5W/sjitAWoPEPTAnM2+6YOQ/iOi6ALNwjDZh3HTXm4n30t/bMezK7BAGonsyOoFi0IK5vrgxsn9U2SAtdGJxfONaSDo8bEp6W918HW0unroSnYRTKilZdy6wkvJUeOVDReO+3sd8LDVhSYxkxWU94G8iOB27GcEaeP5zc3jVa0wHBjw== 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: List-Subscribe: List-Unsubscribe: On Sun, Oct 27, 2024 at 03:23:23PM -0700, Hugh Dickins wrote: > generic/077 on x86_32 CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP=y with highmem, > on huge=always tmpfs, issues a warning and then hangs (interruptibly): Looks good: Reviewed-by: Christoph Hellwig