From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752076AbcAEMpR (ORCPT ); Tue, 5 Jan 2016 07:45:17 -0500 Received: from mail-wm0-f51.google.com ([74.125.82.51]:33327 "EHLO mail-wm0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751731AbcAEMpM convert rfc822-to-8bit (ORCPT ); Tue, 5 Jan 2016 07:45:12 -0500 From: Michal Nazarewicz To: Peter Chen , "Du\, Changbin" Cc: "balbi\@ti.com" , "gregkh\@linuxfoundation.org" , "viro\@zeniv.linux.org.uk" , "r.baldyga\@samsung.com" , "rui.silva\@linaro.org" , "k.opasiak\@samsung.com" , "linux-usb\@vger.kernel.org" , "linux-kernel\@vger.kernel.org" Subject: Re: [PATCH] usb: f_fs: avoid race condition with ffs_epfile_io_complete In-Reply-To: <20160105054906.GB29244@shlinux2> Organization: http://mina86.com/ References: <1451371018-14918-1-git-send-email-changbin.du@intel.com> <20160105033216.GA29244@shlinux2> <0C18FE92A7765D4EB9EE5D38D86A563A05C93F77@SHSMSX103.ccr.corp.intel.com> <20160105054906.GB29244@shlinux2> User-Agent: Notmuch/0.19+53~g2e63a09 (http://notmuchmail.org) Emacs/25.1.50.1 (x86_64-unknown-linux-gnu) Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAAJFBMVEWbfGlUPDDHgE57V0jUupKjgIObY0PLrom9mH4dFRK4gmjPs41MxjOgAAACP0lEQVQ4T23Sv2vbQBQHcBk1xE6WyALX107VUEgmn6+ouUwpEQQ6uRjttkWP4CkBg2M0BQLBdPFZYPsyFYo7qEtKDQ7on+t7+nF2Ux8ahD587717OmNYrOvycHsZ+o2r051wHTHysAvGb8ygvgu4QWT0sCmkgZCIEnlV2X8BtyraazFGDuxhmKSQJMlwHQ7v5MHSNxmz78rfElwAa3ieVD9e+hBhjaPDDG6NgFo2f4wBMNIo5YmRtF0RyDgFjJjlMIWbnuM4x9MMfABGTlN4qgIQB4A1DEyA1BHWtfeWNUMwiVJKoqh97KrkOO+qzgluVYLvFCUKAX73nONeBr7BGMdM6Sg0kuep03VywLaIzRiVr+GAzKlpQIsAFnWAG2e6DT5WmWDiudZMIc6hYrMOmeMQK9WX0B+/RfjzL9DI7Y9/Iayn29Ci0r2i4f9gMimMSZLCDMalgQGU5hnUtqAN0OGvEmO1Wnl0C0wWSCEHnuHBqmygxdxA8oWXwbipoc1EoNR9DqOpBpOJrnr0criQab9ZT4LL+wI+K7GBQH30CrhUruilgP9DRTrhVWZCiAyILP+wiuLeCKGTD6r/nc8LOJcAwR6IBTUs+7CASw3QFZ0MdA2PI3zNziH4ZKVhXCRMBjeZ1DWMekKwDCASwExy+NQ86TaykaDAFHO4aP48y4fIcDM5yOG8GcTLbOyp8A8azjJI93JFd1EA6yN8sSxMQJWoABqniRZVykYgRXErzrdqExAoUrRb0xfRp8p2A/4XmfilTtkDZ4cAAAAASUVORK5CYII= X-Face: -TR8(rDTHy/(xl?SfWd1|3:TTgDIatE^t'vop%*gVg[kn$t{EpK(P"VQ=~T2#ysNmJKN$"yTRLB4YQs$4{[.]Fc1)*O]3+XO^oXM>Q#b^ix,O)Zbn)q[y06$`e3?C)`CwR9y5riE=fv^X@x$y?D:XO6L&x4f-}}I4=VRNwiA^t1-ZrVK^07.Pi/57c_du'& X-PGP: 50751FF4 X-PGP-FP: AC1F 5F5C D418 88F8 CC84 5858 2060 4012 5075 1FF4 X-Hashcash: 1:20:160105:linux-usb@vger.kernel.org::k5gvITnRrqX6bx0B:0000000000000000000000000000000000000iGq X-Hashcash: 1:20:160105:k.opasiak@samsung.com::ysByXDfalw0k2i6G:00000000000000000000000000000000000000000cQo X-Hashcash: 1:20:160105:gregkh@linuxfoundation.org::98are9ULbsPUsN6d:000000000000000000000000000000000001jzY X-Hashcash: 1:20:160105:balbi@ti.com::6KvCPSqC8EgKjFpK:000001Myu X-Hashcash: 1:20:160105:changbin.du@intel.com::I3Fa2hUK2UZv6TR6:00000000000000000000000000000000000000001a0C X-Hashcash: 1:20:160105:viro@zeniv.linux.org.uk::q8d3zbMpkVPcW8Rr:000000000000000000000000000000000000002Aqt X-Hashcash: 1:20:160105:linux-kernel@vger.kernel.org::1I9crAuKrU1zrwbv:0000000000000000000000000000000002/sf X-Hashcash: 1:20:160105:rui.silva@linaro.org::Wd8iaGfa/HAm2KP9:000000000000000000000000000000000000000004UUq X-Hashcash: 1:20:160105:r.baldyga@samsung.com::NYHz7WHmDvCmeoHZ:00000000000000000000000000000000000000004fD/ X-Hashcash: 1:20:160105:hzpeterchen@gmail.com::YY3IZgyuDQ2aCU93:0000000000000000000000000000000000000000P7mr Date: Tue, 05 Jan 2016 13:45:06 +0100 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jan 05 2016, Peter Chen wrote: > Why -EINTR, the kernel-doc said it should return -ECONNRESET for > active request, see include/linux/usb/gadget.h. Because EINTR is what read returns to the user if the operation has been interrupted by a signal, see ‘man 2 read’: EINTR The call was interrupted by a signal before any data was read; see signal(7). -- Best regards, _ _ .o. | Liege of Serenely Enlightened Majesty of o' \,=./ `o ..o | Computer Science, ミハウ “mina86” ナザレヴイツ (o o) ooo +------ooO--(_)--Ooo--