From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io1-f46.google.com (mail-io1-f46.google.com [209.85.166.46]) by mail19.linbit.com (LINBIT Mail Daemon) with ESMTP id A3B3A4203A1 for ; Mon, 21 Nov 2022 23:32:06 +0100 (CET) Received: by mail-io1-f46.google.com with SMTP id y6so9701291iof.9 for ; Mon, 21 Nov 2022 14:32:06 -0800 (PST) Message-ID: <96114bec-1df7-0dcb-ec99-4f907587658d@linuxfoundation.org> Date: Mon, 21 Nov 2022 15:32:02 -0700 MIME-Version: 1.0 Content-Language: en-US To: Benjamin Coddington References: <382872.1669039019@warthog.procyon.org.uk> <51B5418D-34FB-4E87-B87A-6C3FCDF8B21C@redhat.com> <4585e331-03ad-959f-e715-29af15f63712@linuxfoundation.org> <26d98c8f-372b-b9c8-c29f-096cddaff149@linuxfoundation.org> From: Shuah Khan In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: Latchesar Ionkov , samba-technical@lists.samba.org, Dominique Martinet , Shuah Khan , Valentina Manea , linux-nvme@lists.infradead.org, Philipp Reisner , David Howells , Joseph Qi , Eric Dumazet , linux-nfs@vger.kernel.org, Marc Dionne , Shuah Khan , Christoph Hellwig , Mike Christie , drbd-dev@lists.linbit.com, linux-cifs@vger.kernel.org, Sagi Grimberg , linux-scsi@vger.kernel.org, Mark Fasheh , linux-afs@lists.infradead.org, cluster-devel@redhat.com, Christine Caulfield , Jakub Kicinski , Ilya Dryomov , Paolo Abeni , Anna Schumaker , Eric Van Hensbergen , "James E.J. Bottomley" , Josef Bacik , nbd@other.debian.org, linux-block@vger.kernel.org, David Teigland , Joel Becker , v9fs-developer@lists.sourceforge.net, Keith Busch , ceph-devel@vger.kernel.org, Xiubo Li , Trond Myklebust , Jens Axboe , Chris Leech , open-iscsi@googlegroups.com, "Martin K. Petersen" , netdev@vger.kernel.org, linux-usb@vger.kernel.org, Jeff Layton , linux-kernel@vger.kernel.org, Steve French , Chuck Lever , Lee Duncan , Greg Kroah-Hartman , Lars Ellenberg , "David S. Miller" , ocfs2-devel@oss.oracle.com Subject: Re: [Drbd-dev] [PATCH v1 2/3] Treewide: Stop corrupting socket's task_frag List-Id: "*Coordination* of development, patches, contributions -- *Questions* \(even to developers\) go to drbd-user, please." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 11/21/22 15:01, Benjamin Coddington wrote: > On 21 Nov 2022, at 16:43, Shuah Khan wrote: > >> On 11/21/22 14:40, Shuah Khan wrote: >>> On 11/21/22 07:34, Benjamin Coddington wrote: >>>> On 21 Nov 2022, at 8:56, David Howells wrote: >>>> >>>>> Benjamin Coddington wrote: >>>>> >>>>>> Since moving to memalloc_nofs_save/restore, SUNRPC has stopped setting the >>>>>> GFP_NOIO flag on sk_allocation which the networking system uses to decide >>>>>> when it is safe to use current->task_frag. >>>>> >>>>> Um, what's task_frag? >>>> >>>> Its a per-task page_frag used to coalesce small writes for networking -- see: >>>> >>>> 5640f7685831 net: use a per task frag allocator >>>> >>>> Ben >>>> >>>> >>> >>> I am not seeing this in the mainline. Where can find this commit? >>> >> >> Okay. I see this commit in the mainline. However, I don't see the >> sk_use_task_frag in mainline. > > sk_use_task_frag is in patch 1/3 in this posting. > > https://lore.kernel.org/netdev/26d98c8f-372b-b9c8-c29f-096cddaff149@linuxfoundation.org/T/#m3271959c4cf8dcff1c0c6ba023b2b3821d9e7e99 > Aha. I don't have 1/3 in my Inbox - I think it would make sense to cc people on the first patch so we can understand the premise for the change. thanks, -- Shuah