From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m16.mail.163.com (m16.mail.163.com [117.135.210.2]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 8F35728C039; Sat, 16 Aug 2025 10:06:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=117.135.210.2 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755338768; cv=none; b=Qz/J9unV9G3nfZ41m2bN2O3jRoKKDY9SyyH60u42kjbMNsmtYuDBW4fUGnOc3KsE//UePJtkvY1ZzA7pk59b4xGKgTzUkNIu3yhGPaefI7Zwopui62R5n+zx4/hec9prdHueLZ/tJ3qkX5DCMOp8a+kIjy12do7llH9XgTrsn2I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755338768; c=relaxed/simple; bh=/tvCba59DndcHKT1wO2n4S6E84FC8hxSXkLUPaJM1oI=; h=Date:From:To:Cc:Subject:In-Reply-To:References:Content-Type: MIME-Version:Message-ID; b=JhOsq/aPy4TxoVQHnZUVsFigUVgI9ro1+t/7HRCHpGFmbBtbT2unrDLbboQvZRS/6NwMChmhq5js/7plSZ5xJaEB9mBux0CgjZQb7IIy8FCwrcCiY7mFQmx/s8hjfc+Rjz7TV/TQeWAdm4AmyUHlHEHY76DCwf6w0n/lAfOlMjk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com; spf=pass smtp.mailfrom=163.com; dkim=fail (1024-bit key) header.d=163.com header.i=@163.com header.b=m0BWYAnD reason="signature verification failed"; arc=none smtp.client-ip=117.135.210.2 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=163.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=163.com Authentication-Results: smtp.subspace.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=163.com header.i=@163.com header.b="m0BWYAnD" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=163.com; s=s110527; h=Date:From:To:Subject:Content-Type:MIME-Version: Message-ID; bh=8RBZaee7DFAtQwlLxj5DjaKUkNFGSPrEBSejl/nsRSQ=; b=m 0BWYAnD1iVKCHtD72+dacuUWLKPD3jtBzrPQceyGIWMAo+ksupPltvjHIVSWUcJL FpWRVYE4efVYXY7obvqR1+QXIJf7LX7mgp7QQcaUUjIRKX8xT0wy6u0auhbngRJD nkZJ8hjhbR9+i0y/RWj37z7zGtZhs8S5ZRtAMgYm3I= Received: from yangshiguang1011$163.com ( [2408:8607:1b00:8:9e7b:efff:fe4e:6d16] ) by ajax-webmail-wmsvr-40-116 (Coremail) ; Sat, 16 Aug 2025 18:05:15 +0800 (CST) Date: Sat, 16 Aug 2025 18:05:15 +0800 (CST) From: yangshiguang To: "Harry Yoo" Cc: vbabka@suse.cz, akpm@linux-foundation.org, cl@gentwo.org, rientjes@google.com, roman.gushchin@linux.dev, glittao@gmail.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, yangshiguang Subject: Re:Re: [PATCH v2] mm: slub: avoid wake up kswapd in set_track_prepare X-Priority: 3 X-Mailer: Coremail Webmail Server Version XT5.0.14 build 20250519(9504565a) Copyright (c) 2002-2025 www.mailtech.cn 163com In-Reply-To: References: <20250814111641.380629-2-yangshiguang1011@163.com> X-NTES-SC: AL_Qu2eB/+Yt08q4yibZekfmUgRj+k6WsK3s/sn3oNfP5B+jD3p0T0ceV9KLFv96vuKKB6rvRGeUwZw9/RYepVacKsLlpC3vEWLniawSbSmH+6ptg== Content-Transfer-Encoding: base64 Content-Type: text/plain; charset=GBK Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <14b4d82.262b.198b25732bb.Coremail.yangshiguang1011@163.com> X-Coremail-Locale: zh_CN X-CM-TRANSID:dCgvCgAXB+vbV6Bo6nQbAA--.560W X-CM-SenderInfo: 51dqw25klj3ttqjriiqr6rljoofrz/1tbiSByr5WigMtzoyQAIsV X-Coremail-Antispam: 1U5529EdanIXcx71UUUUU7vcSsGvfC2KfnxnUU== CgpBdCAyMDI1LTA4LTE2IDE2OjI1OjI1LCAiSGFycnkgWW9vIiA8aGFycnkueW9vQG9yYWNsZS5j b20+IHdyb3RlOgo+T24gVGh1LCBBdWcgMTQsIDIwMjUgYXQgMDc6MTY6NDJQTSArMDgwMCwgeWFu Z3NoaWd1YW5nMTAxMUAxNjMuY29tIHdyb3RlOgo+PiBGcm9tOiB5YW5nc2hpZ3VhbmcgPHlhbmdz aGlndWFuZ0B4aWFvbWkuY29tPgo+PiAKPj4gRnJvbTogeWFuZ3NoaWd1YW5nIDx5YW5nc2hpZ3Vh bmdAeGlhb21pLmNvbT4KPj4gCj4+IHNldF90cmFja19wcmVwYXJlKCkgY2FuIGluY3VyIGxvY2sg cmVjdXJzaW9uLgo+PiBUaGUgaXNzdWUgaXMgdGhhdCBpdCBpcyBjYWxsZWQgZnJvbSBocnRpbWVy X3N0YXJ0X3JhbmdlX25zCj4+IGhvbGRpbmcgdGhlIHBlcl9jcHUoaHJ0aW1lcl9iYXNlcylbbl0u bG9jaywgYnV0IHdoZW4gZW5hYmxlZAo+PiBDT05GSUdfREVCVUdfT0JKRUNUU19USU1FUlMsIG1h eSB3YWtlIHVwIGtzd2FwZCBpbiBzZXRfdHJhY2tfcHJlcGFyZSwKPj4gYW5kIHRyeSB0byBob2xk IHRoZSBwZXJfY3B1KGhydGltZXJfYmFzZXMpW25dLmxvY2suCj4+IAo+PiBTbyBhdm9pZCB3YWtp bmcgdXAga3N3YXBkLlRoZSBvb3BzIGxvb2tzIHNvbWV0aGluZyBsaWtlOgo+Cj5IaSB5YW5nc2hp Z3VhbmcsIAo+Cj5JbiB0aGUgbmV4dCByZXZpc2lvbiwgY291bGQgeW91IHBsZWFzZSBlbGFib3Jh dGUgdGhlIGNvbW1pdCBtZXNzYWdlCj50byByZWZsZWN0IGhvdyB0aGlzIGNoYW5nZSBhdm9pZHMg d2FraW5nIHVwIGtzd2FwZD8KPgoKb2YgY291cnNlLiBUaGFua3MgZm9yIHRoZSByZW1pbmRlci4K Cj4+IEJVRzogc3BpbmxvY2sgcmVjdXJzaW9uIG9uIENQVSMzLCBzd2FwcGVyLzMvMAo+PiAgbG9j azogMHhmZmZmZmY4YTRiZjI5YzgwLCAubWFnaWM6IGRlYWQ0ZWFkLCAub3duZXI6IHN3YXBwZXIv My8wLCAub3duZXJfY3B1OiAzCj4+IEhhcmR3YXJlIG5hbWU6IFF1YWxjb21tIFRlY2hub2xvZ2ll cywgSW5jLiBQb3BzaWNsZSBiYXNlZCBvbiBTTTg4NTAgKERUKQo+PiBDYWxsIHRyYWNlOgo+PiBz cGluX2J1ZysweDAKPj4gX3Jhd19zcGluX2xvY2tfaXJxc2F2ZSsweDgwCj4+IGhydGltZXJfdHJ5 X3RvX2NhbmNlbCsweDk0Cj4+IHRhc2tfY29udGVuZGluZysweDEwYwo+PiBlbnF1ZXVlX2RsX2Vu dGl0eSsweDJhNAo+PiBkbF9zZXJ2ZXJfc3RhcnQrMHg3NAo+PiBlbnF1ZXVlX3Rhc2tfZmFpcisw eDU2OAo+PiBlbnF1ZXVlX3Rhc2srMHhhYwo+PiBkb19hY3RpdmF0ZV90YXNrKzB4MTRjCj4+IHR0 d3VfZG9fYWN0aXZhdGUrMHhjYwo+PiB0cnlfdG9fd2FrZV91cCsweDZjOAo+PiBkZWZhdWx0X3dh a2VfZnVuY3Rpb24rMHgyMAo+PiBhdXRvcmVtb3ZlX3dha2VfZnVuY3Rpb24rMHgxYwo+PiBfX3dh a2VfdXArMHhhYwo+PiB3YWtldXBfa3N3YXBkKzB4MTljCj4+IHdha2VfYWxsX2tzd2FwZHMrMHg3 OAo+PiBfX2FsbG9jX3BhZ2VzX3Nsb3dwYXRoKzB4MWFjCj4+IF9fYWxsb2NfcGFnZXNfbm9wcm9m KzB4Mjk4Cj4+IHN0YWNrX2RlcG90X3NhdmVfZmxhZ3MrMHg2YjAKPj4gc3RhY2tfZGVwb3Rfc2F2 ZSsweDE0Cj4+IHNldF90cmFja19wcmVwYXJlKzB4NWMKPj4gX19fc2xhYl9hbGxvYysweGNjYwo+ PiBfX2ttYWxsb2NfY2FjaGVfbm9wcm9mKzB4NDcwCj4+IF9fc2V0X3BhZ2Vfb3duZXIrMHgyYmMK Pj4gcG9zdF9hbGxvY19ob29rW2p0XSsweDFiOAo+PiBwcmVwX25ld19wYWdlKzB4MjgKPj4gZ2V0 X3BhZ2VfZnJvbV9mcmVlbGlzdCsweDFlZGMKPj4gX19hbGxvY19wYWdlc19ub3Byb2YrMHgxM2MK Pj4gYWxsb2Nfc2xhYl9wYWdlKzB4MjQ0Cj4+IGFsbG9jYXRlX3NsYWIrMHg3Ywo+PiBfX19zbGFi X2FsbG9jKzB4OGU4Cj4+IGttZW1fY2FjaGVfYWxsb2Nfbm9wcm9mKzB4NDUwCj4+IGRlYnVnX29i amVjdHNfZmlsbF9wb29sKzB4MjJjCj4+IGRlYnVnX29iamVjdF9hY3RpdmF0ZSsweDQwCj4+IGVu cXVldWVfaHJ0aW1lcltqdF0rMHhkYwo+PiBocnRpbWVyX3N0YXJ0X3JhbmdlX25zKzB4NWY4Cj4+ IC4uLgo+PiAKPj4gU2lnbmVkLW9mZi1ieTogeWFuZ3NoaWd1YW5nIDx5YW5nc2hpZ3VhbmdAeGlh b21pLmNvbT4KPj4gRml4ZXM6IDVjZjkwOWM1NTNlOSAoIm1tL3NsdWI6IHVzZSBzdGFja2RlcG90 IHRvIHNhdmUgc3RhY2sgdHJhY2UgaW4gb2JqZWN0cyIpCj4+IC0tLQo+PiB2MSAtPiB2MjoKPj4g ICAgIHByb3BhZ2F0ZSBnZnAgZmxhZ3MgdG8gc2V0X3RyYWNrX3ByZXBhcmUoKQo+PiAKPj4gWzFd IGh0dHBzOi8vbG9yZS5rZXJuZWwub3JnL2FsbC8yMDI1MDgwMTA2NTEyMS44NzY3OTMtMS15YW5n c2hpZ3VhbmcxMDExQDE2My5jb20gCj4+IC0tLQo+PiAgbW0vc2x1Yi5jIHwgMjEgKysrKysrKysr KystLS0tLS0tLS0tCj4+ICAxIGZpbGUgY2hhbmdlZCwgMTEgaW5zZXJ0aW9ucygrKSwgMTAgZGVs ZXRpb25zKC0pCj4+IAo+PiBkaWZmIC0tZ2l0IGEvbW0vc2x1Yi5jIGIvbW0vc2x1Yi5jCj4+IGlu ZGV4IDMwMDAzNzYzZDIyNC4uZGJhOTA1YmYxZTAzIDEwMDY0NAo+PiAtLS0gYS9tbS9zbHViLmMK Pj4gKysrIGIvbW0vc2x1Yi5jCj4+IEBAIC05NjIsMTkgKzk2MiwyMCBAQCBzdGF0aWMgc3RydWN0 IHRyYWNrICpnZXRfdHJhY2soc3RydWN0IGttZW1fY2FjaGUgKnMsIHZvaWQgKm9iamVjdCwKPj4g IH0KPj4gIAo+PiAgI2lmZGVmIENPTkZJR19TVEFDS0RFUE9UCj4+IC1zdGF0aWMgbm9pbmxpbmUg ZGVwb3Rfc3RhY2tfaGFuZGxlX3Qgc2V0X3RyYWNrX3ByZXBhcmUodm9pZCkKPj4gK3N0YXRpYyBu b2lubGluZSBkZXBvdF9zdGFja19oYW5kbGVfdCBzZXRfdHJhY2tfcHJlcGFyZShnZnBfdCBnZnBf ZmxhZ3MpCj4+ICB7Cj4+ICAJZGVwb3Rfc3RhY2tfaGFuZGxlX3QgaGFuZGxlOwo+PiAgCXVuc2ln bmVkIGxvbmcgZW50cmllc1tUUkFDS19BRERSU19DT1VOVF07Cj4+ICAJdW5zaWduZWQgaW50IG5y X2VudHJpZXM7Cj4+ICsJZ2ZwX2ZsYWdzICY9IEdGUF9OT1dBSVQ7Cj4KPklzIHRoZXJlIGFueSBy ZWFzb24gdG8gZG93bmdyYWRlIGl0IHRvIEdGUF9OT1dBSVQgd2hlbiB0aGUgZ2ZwIGZsYWcgYWxs b3dzCj5kaXJlY3QgcmVjbGFtYXRpb24/Cj4KCkhpIEhhcnJ5LAoKVGhlIG9yaWdpbmFsIGFsbG9j YXRpb24gaXMgR0ZQX05PV0FJVC4KU28gSSB0aGluayBpdCdzIGJldHRlciBub3QgdG8gaW5jcmVh c2UgdGhlIGFsbG9jYXRpb24gY29zdCBoZXJlLgoKCj4+ICAJbnJfZW50cmllcyA9IHN0YWNrX3Ry YWNlX3NhdmUoZW50cmllcywgQVJSQVlfU0laRShlbnRyaWVzKSwgMyk7Cj4+IC0JaGFuZGxlID0g c3RhY2tfZGVwb3Rfc2F2ZShlbnRyaWVzLCBucl9lbnRyaWVzLCBHRlBfTk9XQUlUKTsKPj4gKwlo YW5kbGUgPSBzdGFja19kZXBvdF9zYXZlKGVudHJpZXMsIG5yX2VudHJpZXMsIGdmcF9mbGFncyk7 Cj4+ICAKPj4gIAlyZXR1cm4gaGFuZGxlOwo+PiAgfQo+PiAgI2Vsc2UKPj4gLXN0YXRpYyBpbmxp bmUgZGVwb3Rfc3RhY2tfaGFuZGxlX3Qgc2V0X3RyYWNrX3ByZXBhcmUodm9pZCkKPj4gK3N0YXRp YyBpbmxpbmUgZGVwb3Rfc3RhY2tfaGFuZGxlX3Qgc2V0X3RyYWNrX3ByZXBhcmUoZ2ZwX3QgZ2Zw X2ZsYWdzKQo+PiAgewo+PiAgCXJldHVybiAwOwo+PiAgfQo+PiBAQCAtNDQyMiw3ICs0NDIzLDcg QEAgc3RhdGljIG5vaW5saW5lIHZvaWQgZnJlZV90b19wYXJ0aWFsX2xpc3QoCj4+ICAJZGVwb3Rf c3RhY2tfaGFuZGxlX3QgaGFuZGxlID0gMDsKPj4gIAo+PiAgCWlmIChzLT5mbGFncyAmIFNMQUJf U1RPUkVfVVNFUikKPj4gLQkJaGFuZGxlID0gc2V0X3RyYWNrX3ByZXBhcmUoKTsKPj4gKwkJaGFu ZGxlID0gc2V0X3RyYWNrX3ByZXBhcmUoR0ZQX05PV0FJVCk7Cj4KPkkgZG9uJ3QgdGhpbmsgaXQg aXMgc2FmZSB0byB1c2UgR0ZQX05PV0FJVCBkdXJpbmcgZnJlZT8KPgo+TGV0J3Mgc2F5IGZpbGxf cG9vbCgpIC0+IGttZW1fYWxsb2NfYmF0Y2goKSBmYWlscyB0byBhbGxvY2F0ZSBhbiBvYmplY3QK PmFuZCB0aGVuIGZyZWVfb2JqZWN0X2xpc3QoKSBmcmVlcyBhbGxvY2F0ZWQgb2JqZWN0cywKPnNl dF90cmFja19wcmVwYXJlKEdGUF9OT1dBSVQpIG1heSB3YWtlIHVwIGtzd2FwZCwgYW5kIHRoZSBz YW1lIGRlYWRsb2NrCj55b3UgcmVwb3J0ZWQgd2lsbCBvY2N1ci4KPgo+U28gSSB0aGluayBpdCBz aG91bGQgYmUgX19HRlBfTk9XQVJOPwo+CgpZZXMsIHRoaXMgZW5zdXJlcyBzYWZldHkuCgo+LS0g Cj5DaGVlcnMsCj5IYXJyeSAvIEh5ZW9uZ2dvbgo=