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 CD2DEEACE; Tue, 7 Oct 2025 05:08:45 +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=1759813727; cv=none; b=uLSGNUYB9rR6PCC1uRoR51HdV4GLchIIwJDRSidGTJiHXFrafx7TbUGI7FqmYs/ndglhTmWOiu/jb1nT+smthz3KQc3EVV1X/0vClS0sPOWQu8DDkh8FukSbIsr12NARcBVsoMPJJCFqX9k/bKpDZ7qmuPSKp/I88fRar9P49iE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759813727; c=relaxed/simple; bh=t9pKeUFjRFIXpM36o4oBUu52/lAn3GijJo/NTUZCRXo=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=e/CjiXFnDvSLy3eeZ/mNUnRLFbTCpyOnFzl9PRnGp5Pka/GnG4uuaz67kjN+gBeHgd+BQi0pTQDfR29Of/em4yE67FPuICGUUZBEyv/HYhJPvZ0AKmGqGcYH+2aEenFnABOyXrhH9N95UPwpykx1A3sycAFXMmpm6VuWm6iA7Bg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (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=M4nZ9erL; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (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="M4nZ9erL" 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=QJsox1RoyKsVxuvdiBggrwtrbSp5l8DXP2P5Uyhj6VM=; b=M4nZ9erLNqzm5OMxQtneS+Km77 oGtC4Wpzxxuch5360H0lKFMERThgfH9ifRQAdK3E4CY+QMiW/dH837WmANtn8CnSNQWzPQnH67B2z mKl0Y2V9Pjd7YGjg+eUUb4dLx6qyUvP2DpI10d4ywrglao1x8dFmmTfK2YyHRJg/naBGtEqGxiK5h XmYnKJvwMWwUXMCccveSJD2NZ8XQfmIVq5NkXxEcF5V/jnEJ/q2QWtDcuh9tqVtbYfEjNNiaZzUS7 cJrE/0epf/UdhxrSheCUgf3mnpiJVraaE4LNlqhLP3n5Q8fy4XDGKbpU5qAUrRoFpiE1vo2BEUGGn mzfoIuNA==; Received: from hch by bombadil.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1v5zwL-00000001Gu5-18D6; Tue, 07 Oct 2025 05:08:45 +0000 Date: Mon, 6 Oct 2025 22:08:45 -0700 From: Christoph Hellwig To: Andy Lutomirski Cc: Christoph Hellwig , Pavel Emelyanov , linux-fsdevel@vger.kernel.org, "Raphael S . Carvalho" , linux-api@vger.kernel.org, linux-xfs@vger.kernel.org Subject: Re: [PATCH] fs: Propagate FMODE_NOCMTIME flag to user-facing O_NOCMTIME Message-ID: References: <20251003093213.52624-1-xemul@scylladb.com> Precedence: bulk X-Mailing-List: linux-api@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: X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Sat, Oct 04, 2025 at 09:08:05AM -0700, Andy Lutomirski wrote: > > Well, we'll need to look into that, including maybe non-blockin > > timestamp updates. > > > > It's been 12 years (!), but maybe it's time to reconsider this: > > https://lore.kernel.org/all/cover.1377193658.git.luto@amacapital.net/ I don't see how that is relevant here. Also writes through shared mmaps are problematic for so many reasons that I'm not sure we want to encourage people to use that more.