From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx206.postini.com [74.125.245.206]) by kanga.kvack.org (Postfix) with SMTP id 75E866B0044 for ; Tue, 6 Nov 2012 18:23:05 -0500 (EST) Date: Tue, 6 Nov 2012 15:23:03 -0800 From: Andrew Morton Subject: Re: [PATCH v4 0/6] solve deadlock caused by memory allocation with I/O Message-Id: <20121106152303.b1e135ee.akpm@linux-foundation.org> In-Reply-To: <1351931714-11689-1-git-send-email-ming.lei@canonical.com> References: <1351931714-11689-1-git-send-email-ming.lei@canonical.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Ming Lei Cc: linux-kernel@vger.kernel.org, Alan Stern , Oliver Neukum , Minchan Kim , Greg Kroah-Hartman , "Rafael J. Wysocki" , Jens Axboe , "David S. Miller" , netdev@vger.kernel.org, linux-usb@vger.kernel.org, linux-pm@vger.kernel.org, linux-mm@kvack.org"Rafael J. Wysocki" On Sat, 3 Nov 2012 16:35:08 +0800 Ming Lei wrote: > This patchset try to solve one deadlock problem which might be caused > by memory allocation with block I/O during runtime PM and block device > error handling path. Traditionly, the problem is addressed by passing > GFP_NOIO statically to mm, but that is not a effective solution, see > detailed description in patch 1's commit log. It generally looks OK to me. I have a few comments and I expect to grab v5. Rafael, your thoughts? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org