From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 757D0C4363D for ; Sat, 3 Oct 2020 09:47:33 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 15913206C9 for ; Sat, 3 Oct 2020 09:47:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="XM+fsr0y"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=ffwll.ch header.i=@ffwll.ch header.b="hDibXoHA" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 15913206C9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=ffwll.ch Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:To:Subject:Message-ID:Date:From:In-Reply-To: References:MIME-Version:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=PnLBAP+ZjTjJE2X+rerF63WnvfIWfoqEolezHpPPsHI=; b=XM+fsr0y+Vq2Nakm+r9j2wkPA jIPoS+JlCCXc6JNdSqCY5K0moUvRG6VwmxgY4uzdw0EQ3Q5UJej53OFSZvl5j+bIXUOx7XNqRfnl3 bN+nmJkR774joThMwTTAjJJpZ66Bq/YZzs7NLVquLPLwuOMy6ECwQslehYZwjtB1PIW11SvjIFEo8 nWogwEp/GN4O7/PTbvcE/WrRGz2VQTOGRj5Fb7H/Mnb3IPQ78btq3Rs2ArzCoCVpnJhEI6EMdSKlk OR2LJXomktYwSS+WZMsn5wtx8h+YR3Kt7rbOJL1tkH37GdzWqA+Cv19e3bITyeInpWrre70Wab269 GRZBlSeYQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kOe7E-0001i3-5h; Sat, 03 Oct 2020 09:46:08 +0000 Received: from mail-ot1-x342.google.com ([2607:f8b0:4864:20::342]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kOe7A-0001gQ-VI for linux-arm-kernel@lists.infradead.org; Sat, 03 Oct 2020 09:46:05 +0000 Received: by mail-ot1-x342.google.com with SMTP id y5so3850142otg.5 for ; Sat, 03 Oct 2020 02:46:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ffwll.ch; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=WmsHZ3xTqss6S86de6F2+GmRY4pwh6QmzDJN/bVYlUo=; b=hDibXoHAY2NY8DYQlETzpK27wX4ATsoMa5kzy1M2/palInn8ZKnTsfX9OAvCBMHLJ7 UTXJhzhKn4fSMh0ypNeHIZ7V603V9nGrHtFMY58a+YAo7uy+FISml44C4EG7POAXsSK5 tta54lMbGSCYR/621NNEVOBJzs4fvGGa04aCQ= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=WmsHZ3xTqss6S86de6F2+GmRY4pwh6QmzDJN/bVYlUo=; b=BukTCwS7ybWJy9Hyf7ViRGDUF/exjp3wFmS2hzPOzyEq06ItDqsj5x5Ba0ePog8SJu F8nW/iBG92mpeEOkQHNbRnb/K0gokOM6e85JPOE+NRzl56PQslzBwBZ3hHPFHCVnoTBK UBmAMVYyhVRrsBeL/08PvmyfbioOnEe2kxT3qciHaguAWkA8YbVZyE3JoVGBoYngXEJ9 D9bd6fzZc16vuG+pi1R9KfHqLfaQOKnovDjUvSwYBCfldFm7pm/8Z6TR+0Qj3Gw5KPZq wI8u9Cs5hMl3mFZiKf4Ny/iC+EBdcfdzEXRHJ9+L1LV/rM59kSqgTnDSUOqSwGk762qN MIkw== X-Gm-Message-State: AOAM531N6Xi5IY7I3k3XmR5yyPXyiiHOfRyyRlrwesHV/B/8A26zncrM B9jPI2ADZDB5IeLUZREnu/IoxS7gWjR1G0o7EsnsLA== X-Google-Smtp-Source: ABdhPJx7DZsiJzsUZCobrpWxpW+51JFbUQoJiBR48TvpUyFl0hMBEePfLwnrqOzsuokwHF8YWn4ObJWhXDnnLDo1YzY= X-Received: by 2002:a9d:4b99:: with SMTP id k25mr5004991otf.281.1601718362705; Sat, 03 Oct 2020 02:46:02 -0700 (PDT) MIME-Version: 1.0 References: <20201002175303.390363-1-daniel.vetter@ffwll.ch> <20201002175303.390363-2-daniel.vetter@ffwll.ch> In-Reply-To: From: Daniel Vetter Date: Sat, 3 Oct 2020 11:45:51 +0200 Message-ID: Subject: Re: [PATCH 2/2] mm/frame-vec: use FOLL_LONGTERM To: John Hubbard X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201003_054605_013166_ECBAAEFE X-CRM114-Status: GOOD ( 34.95 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-samsung-soc , Jan Kara , LKML , DRI Development , Linux MM , =?UTF-8?B?SsOpcsO0bWUgR2xpc3Nl?= , Daniel Vetter , Andrew Morton , Dan Williams , Linux ARM , "open list:DMA BUFFER SHARING FRAMEWORK" Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gU2F0LCBPY3QgMywgMjAyMCBhdCAxMjozOSBBTSBKb2huIEh1YmJhcmQgPGpodWJiYXJkQG52 aWRpYS5jb20+IHdyb3RlOgo+Cj4gT24gMTAvMi8yMCAxMDo1MyBBTSwgRGFuaWVsIFZldHRlciB3 cm90ZToKPiA+IEZvciAkcmVhc29ucyBJJ3ZlIHN0dW1ibGVkIG92ZXIgdGhpcyBjb2RlIGFuZCBJ J20gbm90IHN1cmUgdGhlIGNoYW5nZQo+ID4gdG8gdGhlIG5ldyBndXAgZnVuY3Rpb25zIGluIDU1 YTY1MGMzNWZlYSAoIm1tL2d1cDogZnJhbWVfdmVjdG9yOgo+ID4gY29udmVydCBnZXRfdXNlcl9w YWdlcygpIC0tPiBwaW5fdXNlcl9wYWdlcygpIikgd2FzIGVudGlyZWx5IGNvcnJlY3QuCj4gPgo+ ID4gVGhpcyBoZXJlIGlzIHVzZWQgZm9yIGxvbmcgdGVybSBidWZmZXJzIChub3QganVzdCBxdWlj ayBJL08pIGxpa2UKPiA+IFJETUEsIGFuZCBKb2huIG5vdGVzIHRoaXMgaW4gaGlzIHBhdGNoLiBC dXQgSSB0aG91Z2h0IHRoZSBydWxlIGZvcgo+ID4gdGhlc2UgaXMgdGhhdCB0aGV5IG5lZWQgdG8g YWRkIEZPTExfTE9OR1RFUk0sIHdoaWNoIEpvaG4ncyBwYXRjaAo+ID4gZGlkbid0IGRvLgo+Cj4g WWVwLiBUaGUgZWFybGllciBndXAgLS0+IHB1cCBjb252ZXJzaW9uIHBhdGNoZXMgd2VyZSBpbnRl bmRlZCB0byBub3QKPiBoYXZlIGFueSBub3RpY2VhYmxlIGJlaGF2aW9yIGNoYW5nZXMsIGFuZCBG T0xMX0xPTkdURVJNLCB3aXRoIGl0J3MKPiBzcGVjaWFsIGNhc2VzIGFuZCBzdWNoLCBhZGRlZCBz b21lIHJpc2sgdGhhdCBJIHdhc24ndCByZWFkeSB0byB0YWtlCj4gb24geWV0LiBBbHNvLCBGT0xM X0xPTkdURVJNIHJ1bGVzIGFyZSBvbmx5ICpyZWNlbnRseSogZ2V0dGluZyBmaXJtZWQKPiB1cC4g U28gdGhlcmUgd2FzIHNvbWUgZG91YnQgYXQgbGVhc3QgaW4gbXkgbWluZCwgYWJvdXQgd2hpY2gg c2l0ZXMKPiBzaG91bGQgaGF2ZSBpdC4KPgo+IEJ1dCBub3cgdGhhdCB3ZSdyZSBoZXJlLCBJIHRo aW5rIGl0J3MgcmVhbGx5IGdvb2QgdGhhdCB5b3UndmUgYnJvdWdodAo+IHRoaXMgdXAuIEl0J3Mg ZGVmaW5pdGVseSB0aW1lIHRvIGFkZCBGT0xMX0xPTkdURVJNIHdoZXJldmVyIGl0J3MgbWlzc2lu Zy4KClNvIHNob3VsZCBJIGtlZXAgdGhpcyBwYXRjaCwgb3Igd2lsbCBpdCBjb2xsaWRlIHdpdGgg YSBzZXJpZXMgeW91J3JlIHdvcmtpbmcgb24/CgpBbHNvIHdpdGggdGhlIGZpcm1lZCB1cCBydWxl cywgY29ycmVjdCB0aGF0IEkgY2FuIGFsc28gZHJvcCB0aGUKdm1hX2lzX2ZzZGF4IGNoZWNrIHdo ZW4gdGhlIEZPTExfTE9OR1RFUk0gZmxhZyBpcyBzZXQ/CgpUaGFua3MsIERhbmllbAoKPgo+IHRo YW5rcywKPiAtLQo+IEpvaG4gSHViYmFyZAo+IE5WSURJQQo+Cj4gPgo+ID4gVGhlcmUgaXMgYWxy ZWFkeSBhIGRheCBzcGVjaWZpYyBjaGVjayAoYWRkZWQgaW4gYjdmMDU1NGE1NmYyICgibW06Cj4g PiBmYWlsIGdldF92YWRkcl9mcmFtZXMoKSBmb3IgZmlsZXN5c3RlbS1kYXggbWFwcGluZ3MiKSks IHNvIHRoaXMgc2VlbXMKPiA+IGxpa2UgdGhlIHBydWRlbnQgdGhpbmcgdG8gZG8uCj4gPgo+ID4g U2lnbmVkLW9mZi1ieTogRGFuaWVsIFZldHRlciA8ZGFuaWVsLnZldHRlckBpbnRlbC5jb20+Cj4g PiBDYzogQW5kcmV3IE1vcnRvbiA8YWtwbUBsaW51eC1mb3VuZGF0aW9uLm9yZz4KPiA+IENjOiBK b2huIEh1YmJhcmQgPGpodWJiYXJkQG52aWRpYS5jb20+Cj4gPiBDYzogSsOpcsO0bWUgR2xpc3Nl IDxqZ2xpc3NlQHJlZGhhdC5jb20+Cj4gPiBDYzogSmFuIEthcmEgPGphY2tAc3VzZS5jej4KPiA+ IENjOiBEYW4gV2lsbGlhbXMgPGRhbi5qLndpbGxpYW1zQGludGVsLmNvbT4KPiA+IENjOiBsaW51 eC1tbUBrdmFjay5vcmcKPiA+IENjOiBsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5v cmcKPiA+IENjOiBsaW51eC1zYW1zdW5nLXNvY0B2Z2VyLmtlcm5lbC5vcmcKPiA+IENjOiBsaW51 eC1tZWRpYUB2Z2VyLmtlcm5lbC5vcmcKPiA+IC0tLQo+ID4gSGkgYWxsLAo+ID4KPiA+IEkgc3R1 bWJsZWQgb3ZlciB0aGlzIGFuZCBmaWd1cmVkIHR5cGluZyB0aGlzIHBhdGNoIGNhbid0IGh1cnQu IFJlYWxseQo+ID4ganVzdCB0byBtYXliZSBsZWFybiBhIGZldyB0aGluZ3MgYWJvdXQgaG93IGd1 cC9wdXAgaXMgc3VwcG9zZWQgdG8gYmUKPiA+IHVzZWQgKHdlIGhhdmUgYSBiaXQgb2YgdGhhdCBp biBkcml2ZXJzL2dwdSksIHRoaXMgaGVyZSBpc24ndCByZWFsbHkKPiA+IHJhbGF0ZWQgdG8gYW55 dGhpbmcgSSdtIGRvaW5nLgo+ID4KPiA+IEknbSBhbHNvIHdvbmRlcmluZyB3aGV0aGVyIHRoZSBl eHBsaWNpdCBkYXggY2hlY2sgc2hvdWxkIGJlIHJlbW92ZWQsCj4gPiBzaW5jZSBGT0xMX0xPTkdU RVJNIHNob3VsZCB0YWtlIGNhcmUgb2YgdGhhdCBhbHJlYWR5Lgo+ID4gLURhbmllbAo+ID4gLS0t Cj4gPiAgIG1tL2ZyYW1lX3ZlY3Rvci5jIHwgMiArLQo+ID4gICAxIGZpbGUgY2hhbmdlZCwgMSBp bnNlcnRpb24oKyksIDEgZGVsZXRpb24oLSkKPiA+Cj4gPiBkaWZmIC0tZ2l0IGEvbW0vZnJhbWVf dmVjdG9yLmMgYi9tbS9mcmFtZV92ZWN0b3IuYwo+ID4gaW5kZXggNWQzNGM5MDQ3ZTljLi4zNTA3 ZTA5Y2IzZmYgMTAwNjQ0Cj4gPiAtLS0gYS9tbS9mcmFtZV92ZWN0b3IuYwo+ID4gKysrIGIvbW0v ZnJhbWVfdmVjdG9yLmMKPiA+IEBAIC0zNSw3ICszNSw3IEBAIGludCBnZXRfdmFkZHJfZnJhbWVz KHVuc2lnbmVkIGxvbmcgc3RhcnQsIHVuc2lnbmVkIGludCBucl9mcmFtZXMsCj4gPiAgIHsKPiA+ ICAgICAgIHN0cnVjdCBtbV9zdHJ1Y3QgKm1tID0gY3VycmVudC0+bW07Cj4gPiAgICAgICBzdHJ1 Y3Qgdm1fYXJlYV9zdHJ1Y3QgKnZtYTsKPiA+IC0gICAgIHVuc2lnbmVkIGludCBndXBfZmxhZ3Mg PSBGT0xMX1dSSVRFIHwgRk9MTF9GT1JDRTsKPiA+ICsgICAgIHVuc2lnbmVkIGludCBndXBfZmxh Z3MgPSBGT0xMX1dSSVRFIHwgRk9MTF9GT1JDRSB8IEZPTExfTE9OR1RFUk07Cj4gPiAgICAgICBp bnQgcmV0ID0gMDsKPiA+ICAgICAgIGludCBlcnI7Cj4gPiAgICAgICBpbnQgbG9ja2VkOwo+ID4K PgoKCi0tIApEYW5pZWwgVmV0dGVyClNvZnR3YXJlIEVuZ2luZWVyLCBJbnRlbCBDb3Jwb3JhdGlv bgpodHRwOi8vYmxvZy5mZndsbC5jaAoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5nIGxpc3QKbGludXgtYXJtLWtl cm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxt YW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo=