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 8FC475FDBD; Sat, 3 Feb 2024 19:17:14 +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=1706987842; cv=none; b=jvdt3mDxfmUaInppvNjQv7hYabPVUIHdrNZCHqXI7weF1xHOj96f3H2/3CGxWA/uSUJkq/NNUvqzTpv1bpl5/7wXBYCPlh8DxueTYU8uVCRCoJ3nio9sut+PtV/avvbyfWuyShKMeNwnfk/MniRdMsLUcFFqYP6F25SBfKWIhns= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706987842; c=relaxed/simple; bh=cUKQD5l+1MKQ5ALHJqAwUm/2vPwtxJRjNN0WsVYURE0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=kAGhbRvOsLplLtnd19u9sVFkSkeZY88+LMYxNRKKBNDC64j6z0SyEZT5sjY/TYLsFPJYR3DIdA4A3wLKemls6ArIlfHJViHAhKGPl/LHpcVOo/bqw8BXCNq+uRStfguwNo6WmzH3hXH7FV75/rnCUh0M+HEe/ymKWpBXQqWDB6k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (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=Y76r2LQ+; arc=none smtp.client-ip=90.155.50.34 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=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="Y76r2LQ+" 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=OeXvRrWTn2B5fELpXRSJLDCDquzmrC8sae4TRHzYbAg=; b=Y76r2LQ+HoxNn7WwtjSIi/sFJ+ ftpm9b0l50zljouy5cqMeRC0NzZbCA0EEGfsuKs6ohpSkHXs+YHGsBzpXJRsFckotRYN0f1RIw6Gt NGPytj+a7dj+mnXLIek9cd8H97BUizxltVO0pzWiwIqZBH3Z6rXw7qyD1Kgy1BxA0iCvy+3ARzbei Ew8w77/qyviMN4DYUdt7GKW+pR56TSwFmh0nj5lj34eXmMkN0r8D49STNiU9mfqS6TFGO/4YCS/gP dzKKwwnKw81+cFy2K6i104PlPDnH3VZGbLXmwtPjmc+/0WokuSYarUW94+w8kGDI64zHoFDzx0CYl dQf8UMaw==; Received: from willy by casper.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1rWLVf-00000004eZ0-0LnQ; Sat, 03 Feb 2024 19:17:03 +0000 Date: Sat, 3 Feb 2024 19:17:02 +0000 From: Matthew Wilcox To: Greg Kroah-Hartman Cc: stable@vger.kernel.org, patches@lists.linux.dev, Eric Dumazet , Arjun Roy , linux-mm@vger.kernel.org, Andrew Morton , linux-fsdevel@vger.kernel.org, "David S. Miller" , Sasha Levin , ZhangPeng Subject: Re: [PATCH 6.1 194/219] tcp: add sanity checks to rx zerocopy Message-ID: References: <20240203035317.354186483@linuxfoundation.org> <20240203035344.297241145@linuxfoundation.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240203035344.297241145@linuxfoundation.org> On Fri, Feb 02, 2024 at 08:06:07PM -0800, Greg Kroah-Hartman wrote: > 6.1-stable review patch. If anyone has any objections, please let me know. > > ------------------ > > From: Eric Dumazet > > [ Upstream commit 577e4432f3ac810049cb7e6b71f4d96ec7c6e894 ] Um, I thought this was an inapproproate way to fix the problem and I said so at the time. Why did this get applied? I'm starting to get quite angry at networking developers poking around in the guts of MM. They don't know what they're doing and it shows.