From mboxrd@z Thu Jan 1 00:00:00 1970 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.subspace.kernel.org (Postfix) with ESMTPS id 89817238C16 for ; Thu, 19 Feb 2026 06:11:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771481512; cv=none; b=F0QV5/pMv2bjSsIfredi6VNMXsGcM5fgxKg0G4B5B1V1asUdlXXF+7KSp3N7LNylFzK6eF9sAZMzW8H3MKl5G02VsE7Jdenn2/dA5VLRLSqTwFjfbWdTmp+mh6znA66KhaG0KKgZQFEO5kKhn9tf/625VsHsHK4a1fo2IuzRSUU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771481512; c=relaxed/simple; bh=IbregffE1tO7GaKKVQH3gdCK7brdUY5iBn65E5i866E=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=aUB3V01A5imOCeRCEgDPxbAK7fGSt4y365co3FYvr7MqsamUTYQpFtkMH+wpK23fKnvdRnRJcJQ/PCsIchrZLEPO9S+rEONv6DzdoWiiGxuD7qmySNAkclUEyF8syfkIbFM5Qka6fxhMCstEJWvG+wbW7vb6Uu65+e684rQJRMU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=swuyCfzo; arc=none smtp.client-ip=198.137.202.133 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=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="swuyCfzo" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; 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=pn/5kuMbiMiJoVY3TwQnsbo3vyJ9HdzmvBaOYZtcDLk=; b=swuyCfzoKkYTDC7hRAYdXwgCpE MWkoaiot24PlEcRBKGQ+wN4p8SfRiTTyZr7sV8ZXUq4IwCtvmh0uiL+5FUeyiAe+GgpHAc+hd7BI/ LS9FgnKnFlxxhV1tmGDT89HtMmNfJswyCQgoJMg+mGXnBZVKkVxpcJSuGZs/sUJYKcbvPVOAZiFm3 4r2FxOcA+PAG0Zo9ejIdI1gpOfDCorAlZeuyTGQiR/ruCo50HOmiwYIV+nIpCMwQrdTrxNbKbkIH9 iCSVEv49EWT1mZqC3CL2WlgiYBHhypBcN4gggJYIeLvxv9xlTbqjZyJKSj8u8Rjy9/99MuyJE6ekp CIug6xaw==; Received: from hch by bombadil.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1vsxGQ-0000000AwgJ-1KVo; Thu, 19 Feb 2026 06:11:50 +0000 Date: Wed, 18 Feb 2026 22:11:50 -0800 From: Christoph Hellwig To: "Darrick J. Wong" Cc: Matthew Wilcox , Joanne Koong , brauner@kernel.org, wegao@suse.com, sashal@kernel.org, hch@infradead.org, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH v1 1/1] iomap: don't mark folio uptodate if read IO has bytes pending Message-ID: References: <20260219003911.344478-1-joannelkoong@gmail.com> <20260219003911.344478-2-joannelkoong@gmail.com> <20260219024534.GN6467@frogsfrogsfrogs> <20260219061101.GO6467@frogsfrogsfrogs> Precedence: bulk X-Mailing-List: linux-fsdevel@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: <20260219061101.GO6467@frogsfrogsfrogs> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Wed, Feb 18, 2026 at 10:11:01PM -0800, Darrick J. Wong wrote: > > This isn't "the xor thing has come back to bite us". This is "the iomap > > code is now too complicated and I cannot figure out how to explain to > > Joanne that there's really a simple way to do this". > > > > I'm going to have to set aside my current projects and redo the iomap > > readahead/read_folio code myself, aren't I? > > Well you could try explaining to me what that simpler way is? > > /me gets the sense he's missing a discussion somewhere... Same.