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 4537ECD4F3D for ; Wed, 20 May 2026 21:05:23 +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=JSur2SroTri439FDRb+6/2hr/l2eVosmhADUP/SO7ww=; b=FJyJCtOuqUvwFF y2fhZvhCEU5OHBJYy1XzGj8F6iMldXYxsFtQIs+P4LFTz53GsmueR411OyAAI2p7eyQINPVRlXw7T Bq5MZNaOoAmG4y8/SJk49GCgYXJ3FeSyzEuV+tvWAHJoh9eCOGvLDXQYv3rjHORXGqu+5xnXGELbv 1VsJeSAOKF54uPaKSfkGtN3WOCbkVFf3Gb//7qm0S+pGFWyUxK+zUmxp3ObfTb4EFh6S5xGR/77q0 QrODUptNcHY2mBNRsrFeiw04x06lnGHz94fahzYDxKGbVKyqxUXDNOdfCvR3htWhQbQhi0+Pgu6pg 6B/1r5Hl/lPnDhkgloqg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wPo6D-00000005nJx-2Oiw; Wed, 20 May 2026 21:05:05 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wPo6C-00000005nJX-03xm; Wed, 20 May 2026 21:05:04 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Transfer-Encoding: Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To:From:Date: Sender:Reply-To:Content-ID:Content-Description; bh=NoQFWNK7oWAD/wrjDNQs2N+Z55W1ZBNqkdyVcG17n+A=; b=bR9HCAGSj3BuTqMtUE+DLlE2/V hbqFNHpAblQKp5tyrESGJToQyAt4gGSYt43sRu6JEbVNZTj0qvFZxTyoBxJ1wp0kQ5ZcRxN1nm3Rb gh32K03vbE/E7J0yrggnNOynCTcgltl9vPaiaVZXlPQBWE/JQgInR1dXcExZ8Iz6LVbgTlq8x52mX WL8vfh2Lyfw2a/Tpq2i/SXxctbJ1CzS4YgLicbHSvLU347BFYhk2464cXsmbdNSDNV+5du23ojl3E wPSEPslSUR5LG+Oc0B2L/jDVGsi3Or0fTJoXFl2vl9TX0JbwU5Szrew428V10FYaIsgWdHpxL5RaA 8tHIsB1A==; Received: from willy by casper.infradead.org with local (Exim 4.99.1 #2 (Red Hat Linux)) id 1wPo5z-00000007aEX-3LBW; Wed, 20 May 2026 21:04:51 +0000 Date: Wed, 20 May 2026 22:04:51 +0100 From: Matthew Wilcox To: Barry Song Cc: "Liam R. Howlett" , Suren Baghdasaryan , Lorenzo Stoakes , akpm@linux-foundation.org, linux-mm@kvack.org, david@kernel.org, vbabka@kernel.org, rppt@kernel.org, mhocko@suse.com, jack@suse.cz, pfalcato@suse.de, wanglian@kylinos.cn, chentao@kylinos.cn, lianux.mm@gmail.com, kunwu.chan@gmail.com, liyangouwen1@oppo.com, chrisl@kernel.org, kasong@tencent.com, shikemeng@huaweicloud.com, nphamcs@gmail.com, bhe@redhat.com, youngjun.park@lge.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, Nanzhe Zhao Subject: Re: [PATCH v2 0/5] mm: reduce mmap_lock contention and improve page fault performance Message-ID: References: <5zdaa5uv5oj27q3taopl3amops57ouxgyfsdveudz4ovmbdw7z@6lwrlyvmhcp2> 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 T24gV2VkLCBNYXkgMjAsIDIwMjYgYXQgMDY6MDE6NTZBTSArMDgwMCwgQmFycnkgU29uZyB3cm90 ZToKPiA+IGltcGxpZWQgaXMgdGhhdCB0aGUgcGVyLXZtYSBsb2NraW5nIG1heSBzdGFsbCBtbWFw X2xvY2sgd3JpdGVzIGZvcgo+ID4gbG9uZ2VyIHRoYW4gaWYgdGhlIG1tYXBfbG9jayB3YXMgdGFr ZW4gaW4gcmVhZCBtb2RlPyAgQmFycnksIGlzIHRoYXQKPiA+IGNvcnJlY3Q/Cj4gCj4gTm90IHRo ZSBjYXNlIOKAlCB0aGUgYWN0dWFsIHNpdHVhdGlvbiBpcyAoaWYgd2UgbW9kaWZ5IHRoZQo+IGN1 cnJlbnQga2VybmVsIHRvIHBlcmZvcm0gSS9PIHdpdGhvdXQgcmVsZWFzaW5nIFZNQSByZWFkIGxv Y2tzKToKPiAKPiB0aHJlYWQgMSBQRjogbG9jayB2bWExIHJlYWQgLS0tLSAgSU8gLS0tLS0gOwo+ IHRocmVhZCAyIFBGOiBsb2NrIHZtYTIgcmVhZCAtLS0tLSBJTyAtLS0tLSA7Cj4gdGhyZWFkIDMg UEY6ICBsb2NrIHZtYTMgcmVhZCAtLS0tIElPIC0tLS0tIDsKPiB0aHJlYWQgNCBmb3JrOiAgbW1h cF9sb2NrX3dyaXRlIC0tLS0gbG9jayB2bWExLCB2bWEyLCB2bWEzIHdyaXRlIDsKPiB0aHJlYWQg NSA6ICB0YWtlIG1tYXBfbG9jayBmb3IgYW55IHJlYWQvd3JpdGUgcmVhc29uCj4gCj4gTm93IHlv dSBjYW4gc2VlIHRoYXQgdGhyZWFkIDQgaGFzIHRvIHdhaXQgZm9yIHRoZSBJL08gb2YKPiBWTUEx LCBWTUEyLCBhbmQgVk1BMyB0byBjb21wbGV0ZSwgYW5kIHRocmVhZCA1IHRoZW4gaGFzIHRvCj4g d2FpdCBmb3IgdGhyZWFkIDQgdG8gcmVsZWFzZSBtbWFwX2xvY2suIEJvdGggdGhyZWFkIDQgYW5k Cj4gdGhyZWFkIDUgY2FuIGJlY29tZSBleHRyZW1lbHkgc2xvdywgYmVjYXVzZSBJL08gbWF5IGJl IHN0dWNrCj4gYW55d2hlcmUgaW4gdGhlIGJpby9yZXF1ZXN0IHF1ZXVlIG9yIGZpbGVzeXN0ZW0g R0MuCj4gCj4gU28gbm93IHdlIGhhdmUgdHdvIGNob2ljZXM6Cj4gCj4gMS4gQ2hhbmdlIGZvcmso KSB0byBhdm9pZCB0YWtpbmcgdGhlIHZtYSB3cml0ZSBsb2NrIGZvciB2bWExLzIvMyB3aGVyZSBw b3NzaWJsZTsKPiAyLiBLZWVwIHRoZSBjdXJyZW50IGtlcm5lbCBiZWhhdmlvciBhbmQgZHJvcCB0 aGUgVk1BIGxvY2sgYmVmb3JlIEkvTzoKCk9wdGlvbiAzOiBTYXkgdGhhdCB0aGlzIGlzIGEgdmVy eSBzaWxseSB0aGluZyB0byBvcHRpbWlzZSBmb3IuICBJIGhhdmUgYQpoYXJkIHRpbWUgYmVsaWV2 aW5nIHRoYXQgYW55IGFwcGxpY2F0aW9uIHdpbGwgY2FyZSBhYm91dCB0aGUgbGF0ZW5jeSBvZgpm b3JrKCksIG9yIHRoZSBsYXRlbmN5IG9mIHBhZ2UgZmF1bHRzIHdoaWxlIGl0J3MgaW4gdGhlIG1p ZGRsZSBvZiBmb3JrKCkuCk11bHRpdGhyZWFkZWQgYXBwbGljYXRpb25zIGp1c3QgZG9uJ3QgZm9y ayB0aGF0IG9mdGVuIQoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX18KbGludXgtcmlzY3YgbWFpbGluZyBsaXN0CmxpbnV4LXJpc2N2QGxpc3RzLmluZnJhZGVh ZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1y aXNjdgo=