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 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C500ACD5BB0 for ; Fri, 22 May 2026 15:42:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=v//xXE41Vdljj5F7R9lwxiT7tDFZDudx3YfFBzMeq2A=; b=hXf+Dw3xic0CT/ WqSlb3fmYgctezqne/F/vuFUfpv1kSAc80w5twqAzpUxnskAqvM8YNX4ImLVJG/MMfwC2iaOwvr9k ChhDDNDvShoMjY4symGaM43Hk7KbC1pTcU6hXqj3dRmWFZ2BNI3r+F9enqKFB1NIT+dwTfqHBnM1G a22puDBdjU8an1a3NtE+tXNzKboLSZzJxEYmUb2+BUPsQ8IMsI6z58uwSI9jExgIhqfFGZ7GSBdmh AgoszSk1F8x541b5Mmo1phpJ/VbbS8ettkA4dViyw+MlAO9wm4MWBtcTCY7TuhW25pIWMOoKKSs5m fuT9lkjQGaiU2aqOb/wQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wQS1O-0000000BJE9-348M; Fri, 22 May 2026 15:42:46 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wQS1M-0000000BJDY-20EA; Fri, 22 May 2026 15:42:44 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id CECB060138; Fri, 22 May 2026 15:42:43 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 37E9D1F000E9; Fri, 22 May 2026 15:42:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1779464563; bh=JCpY0JkuhcYxNLRV1IUbXIozIjXdostYdAAnrNS61cE=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=fevBbZWW+amNTaTyKMVEGcATHJGI5beCyHSrNicjKpiIEwqwkPh/z0cIoe3sMBOEF 9KpGqhtEFq0bU7LJzRPro+xlky95JCucz80W5KK1l7KFP6+a4UbvOddg/RjiUMRrBc TnJmst4YvoB1b0exji4XGaiDzIYHqxZdQizL+lY9YRCXPqsiUNa4Iwizpjdil6w8kp avB7IiJOReUiZACrj/lPByfzfPgo+MU9KSfdz4bAzD5EbUs+mS2HRvW6EaIzmE8J07 jvv3I3rp4Q5xcvMk2ehvO5RHd+1nyNoGg6Bez7jfcnci4AcbssWI275h4ttA7+QWrP 1r5bMWvNKzJAA== Date: Fri, 22 May 2026 16:42:34 +0100 From: Lorenzo Stoakes To: Barry Song Cc: Matthew Wilcox , akpm@linux-foundation.org, bhe@redhat.com, chentao@kylinos.cn, chrisl@kernel.org, david@kernel.org, jack@suse.cz, kasong@tencent.com, kunwu.chan@gmail.com, liam@infradead.org, lianux.mm@gmail.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, liyangouwen1@oppo.com, loongarch@lists.linux.dev, mhocko@suse.com, nphamcs@gmail.com, nzzhao@126.com, pfalcato@suse.de, rppt@kernel.org, shikemeng@huaweicloud.com, surenb@google.com, vbabka@kernel.org, wanglian@kylinos.cn, youngjun.park@lge.com Subject: Re: [PATCH v2 0/5] mm: reduce mmap_lock contention and improve page fault performance Message-ID: References: <20260522023305.98223-1-baohua@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org T24gRnJpLCBNYXkgMjIsIDIwMjYgYXQgMDk6NDg6MzVQTSArMDgwMCwgQmFycnkgU29uZyB3cm90 ZToKPiBPbiBGcmksIE1heSAyMiwgMjAyNiBhdCA5OjM24oCvUE0gQmFycnkgU29uZyA8YmFvaHVh QGtlcm5lbC5vcmc+IHdyb3RlOgo+ID4KPiA+IE9uIEZyaSwgTWF5IDIyLCAyMDI2IGF0IDk6MDni gK9QTSBNYXR0aGV3IFdpbGNveCA8d2lsbHlAaW5mcmFkZWFkLm9yZz4gd3JvdGU6Cj4gPiA+Cj4g PiA+IE9uIEZyaSwgTWF5IDIyLCAyMDI2IGF0IDEwOjMzOjA1QU0gKzA4MDAsIEJhcnJ5IFNvbmcg KFhpYW9taSkgd3JvdGU6Cj4gPiA+ID4gbmVlZCB0byB0b3VjaCBgZmlsZW1hcC5jYCBhdCBhbGwg KHByb2JhYmx5IGJlY2F1c2UgeW91IGFyZSBhbHJlYWR5Cj4gPiA+ID4gbWFpbnRhaW5pbmcgYGZp bGVtYXAuY2AgcGVyZmVjdGx5KToKPiA+ID4KPiA+ID4gSSdtIGdvaW5nIHRvIGdpdmUgeW91IG9u ZSBjaGFuY2UgdG8gYXBvbG9naXNlIGZvciB0aGF0Lgo+ID4KPiA+IEFwb2xvZ2llcyBpZiBteSB3 b3JkaW5nIGNhdXNlZCBhbnkgbWlzdW5kZXJzdGFuZGluZy4KPiA+IFRoYXQgd2FzIG5vdCBteSBp bnRlbnRpb24gYXQgYWxsLgo+ID4KPiA+IFdoYXQgSSBtZWFudCBpcyB0aGF0IGZpbGVtYXAuYyBh bHJlYWR5IGhhcyBhIHZlcnkKPiA+IHNvbGlkIGRlc2lnbi4KPiA+Cj4gPiBGb3IgbWVtb3J5LmMs IEkgaGFkIHRvIHRvdWNoIHNldmVyYWwgcGxhY2VzIGZvciB0aGUKPiA+IGJsYWNrbGlzdDsgb3Ro ZXJ3aXNlLCB0aGUga2VybmVsIHdvdWxkIGhhbmcuCj4gPgo+ID4gQnV0IGZvciBmaWxlbWFwLmMs IEkgYmFzaWNhbGx5IGRpZG4ndCBuZWVkIHRvIHRvdWNoCj4gPiBhbnl0aGluZywgYW5kIHByZWxp bWluYXJ5IHRlc3Rpbmcgc2hvd3Mgbm8gaXNzdWVzIGFmdGVyCj4gPiBtb3ZpbmcgaXQgZnJvbSB0 aGUgd2hpdGVsaXN0IHRvIHRoZSBibGFja2xpc3QuIFRoaXMgaXMKPgo+IFNvcnJ5LCBJIGZlZWwg SSBtYXkgYmUgY2F1c2luZyBzb21lIG1pc3VuZGVyc3RhbmRpbmcKPiBhZ2Fpbi4KPgo+IEJ5ICJ3 aGl0ZWxpc3QiLCBJIG1lYW4gSSB1c2VkIHRvIGFsbG93IGNlcnRhaW4gY2FzZXMKPiB0byB1c2Ug cGVyLXZtYSByZXRyeS4KPgo+IEJ5ICJibGFja2xpc3QiLCBJIG1lYW4gSSBhbSBub3cgbW92aW5n IHRvIGRpc2FsbG93Cj4gY2VydGFpbiBjYXNlcyBmcm9tIHVzaW5nIHBlci12bWEgcmV0cnkuCj4K PiBSaWdodCBub3csIEkgaGF2ZSB0byBhZGQgc2V2ZXJhbCBjYXNlcyBpbiBtZW1vcnkuYwo+IHRv IHRoZSBibGFja2xpc3Q7IG90aGVyd2lzZSwgdGhlIGtlcm5lbCB3b3VsZCBoYW5nLgo+Cj4gQnV0 IGl0IHNlZW1zIHRoYXQgZXZlcnl0aGluZyBpbiBmaWxlbWFwLmMgaXMgZmluZSBzbwo+IGZhciBi YXNlZCBvbiB0ZXN0aW5nLgo+Cj4gSSdtIG5vdCBzdXJlIGlmIEkndmUgZXhwbGFpbmVkIHRoaW5n cyBjbGVhcmx5LiBQbGVhc2UKPiBsZXQgbWUga25vdyBpZiBhbnl0aGluZyBpcyBzdGlsbCB1bmNs ZWFyIG9yIGluc3VmZmljaWVudC4KCkJhcnJ5IC0gdGhpcyB0aHJlYWQgaXMgY29tcGxldGVseSBv dXQgb2YgaGFuZCBhbmQgZ2V0dGluZyBfcmFwaWRseV8KdW5wcm9kdWN0aXZlLgoKSXQncyBjZXJ0 YWlubHkgYWJvdXQgYXMgY2xlYXIgYXMgbXVkIHdoZXJlIHdlIHN0YW5kIHJpZ2h0IG5vdywgc28g aGVyZSdzIG15CnN1Z2dlc3Rpb24gLSBsZXQncyBqdXN0IHN0b3AgYWRkaW5nIHRvIHRoZSBub2lz ZSBoZXJlIDopIGFuZCBpbnN0ZWFkLCB5b3UKdGFrZSB0aGUgYXBwcm9hY2ggc3VnZ2VzdGVkIGJ5 IFN1cmVuIGF0IExTRiBhbmQgc2VuZCB0aGF0IGFzIGFuIF9SRkNfCnNlcmllcy4KClRoYXQgd2F5 IHdlIGNhbiBsb29rIGF0IHRoYXQgYW5kIGhvcGVmdWxseSBhY3R1YWxseSBjaXJjbGUgaW4gb24g YSBzb2x1dGlvbgpyYXRoZXIgdGhhbiBoYXZlIGVuZGxlc3Mgc3ViIHRocmVhZHMgYW5kIHN1YiBk aXNjdXNzaW9ucyA6KSBJdCdzIGZhciB0b28Kc3Vubnkgb3V0IGluIHRoZSBVSyByaWdodCBub3cg Zm9yIHRoYXQgOykKClRoYW5rcywgTG9yZW56bwoKX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX18KbGludXgtcmlzY3YgbWFpbGluZyBsaXN0CmxpbnV4LXJpc2N2 QGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9s aXN0aW5mby9saW51eC1yaXNjdgo=