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Thu, 19 Dec 2024 12:35:45 +0800 (CST) Date: Thu, 19 Dec 2024 12:35:45 +0800 (CST) From: "David Wang" <00107082@163.com> To: "Zhenhua Huang" Cc: "Suren Baghdasaryan" , kent.overstreet@linux.dev, akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2] lib/alloc_tag: Add accumulative call counter for memory allocation profiling X-Priority: 3 X-Mailer: Coremail Webmail Server Version XT5.0.14 build 20240801(9da12a7b) Copyright (c) 2002-2024 www.mailtech.cn 163com In-Reply-To: <395cab19-e3b4-4581-9fe3-902e9b5d4ea7@quicinc.com> References: <20240913055729.7208-1-00107082@163.com> <710f85e7.a802.193d9d08d8a.Coremail.00107082@163.com> <2ff6b906.2743.193dcc1d53b.Coremail.00107082@163.com> <395cab19-e3b4-4581-9fe3-902e9b5d4ea7@quicinc.com> X-NTES-SC: AL_Qu2YBvmTvUEv4ymcbOkZnEYQheY4XMKyuPkg1YJXOp80oSTPwR8Ycm9FJl3Ly86qEjusoAi6bQNu6OZqcaJUYqKNj7vKOHCdn8dDAiz7emIc Content-Transfer-Encoding: base64 Content-Type: text/plain; charset=UTF-8 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <3fc8410c.46bd.193dd3348a2.Coremail.00107082@163.com> X-Coremail-Locale: zh_CN X-CM-TRANSID:cCgvCgD3XyqiomNngSNDAA--.50164W X-CM-SenderInfo: qqqrilqqysqiywtou0bp/1tbiMwe6qmdjl09vSwADsf X-Coremail-Antispam: 1U5529EdanIXcx71UUUUU7vcSsGvfC2KfnxnUU== CgpBdCAyMDI0LTEyLTE5IDEyOjA2OjA3LCAiWmhlbmh1YSBIdWFuZyIgPHF1aWNfemhlbmh1YWhA cXVpY2luYy5jb20+IHdyb3RlOgo+Cj4KPk9uIDIwMjQvMTIvMTkgMTA6MzEsIERhdmlkIFdhbmcg d3JvdGU6Cj4+IEhJLAo+PiBBdCAyMDI0LTEyLTE5IDAyOjIyOjUzLCAiU3VyZW4gQmFnaGRhc2Fy eWFuIiA8c3VyZW5iQGdvb2dsZS5jb20+IHdyb3RlOgo+Pj4gT24gV2VkLCBEZWMgMTgsIDIwMjQg YXQgNDo0OeKAr0FNIERhdmlkIFdhbmcgPDAwMTA3MDgyQDE2My5jb20+IHdyb3RlOgo+Pj4+Cj4+ Pj4gSGksCj4+Pj4KPj4+PiBJIGZvdW5kIGFub3RoZXIgdXNhZ2UvYmVuZWZpdCBmb3IgYWNjdW11 bGF0aXZlIGNvdW50ZXJzOgo+Pj4+Cj4+Pj4gT24gbXkgc3lzdGVtLCAvcHJvYy9hbGxvY2luZm8g eWllbGRzIGFib3V0IDUwNjUgbGluZXMsICBvZiB3aGljaCAyLzMgbGluZXMgaGF2ZSBhY2N1bXVs YXRpdmUgY291bnRlciAqMCouCj4+Pj4gbWVhbmluZyBubyBtZW1vcnkgYWN0aXZpdGllcy4gKHJp Z2h0PykKPj4+PiBJdCBpcyBxdWl0ZSBhIHdhc3RlIHRvIGtlZXAgdGhvc2UgaXRlbXMgd2hpY2gg YXJlICpub3QgYWxpdmUgeWV0Ki4KPj4+PiBXaXRoIGFkZGl0aW9uYWwgY2hhbmdlcywgb25seSAx Njg0IGxpbmVzIGluIC9wcm9jL2FsbG9jaW5mbyBvbiBteSBzeXN0ZW06Cj4+Pj4KPj4+PiAtLS0g YS9saWIvYWxsb2NfdGFnLmMKPj4+PiArKysgYi9saWIvYWxsb2NfdGFnLmMKPj4+PiBAQCAtOTUs OCArOTUsMTEgQEAgc3RhdGljIHZvaWQgYWxsb2NfdGFnX3RvX3RleHQoc3RydWN0IHNlcV9idWYg Km91dCwgc3RydWN0IGNvZGV0YWcgKmN0KQo+Pj4+ICAgICAgICAgIHN0cnVjdCBhbGxvY190YWdf Y291bnRlcnMgY291bnRlciA9IGFsbG9jX3RhZ19yZWFkKHRhZyk7Cj4+Pj4gICAgICAgICAgczY0 IGJ5dGVzID0gY291bnRlci5ieXRlczsKPj4+Pgo+Pj4+ICsgICAgICAgaWYgKGNvdW50ZXIuYWNj dV9jYWxscyA9PSAwKQo+Pj4+ICsgICAgICAgICAgICAgICByZXR1cm47Cj4+Pj4gICAgICAgICAg c2VxX2J1Zl9wcmludGYob3V0LCAiJTEybGxpICU4bGx1ICIsIGJ5dGVzLCBjb3VudGVyLmNhbGxz KTsKPj4+Pgo+Pj4+Cj4+Pj4gSSB0aGluayB0aGlzIGlzIHF1aXRlIGFuIGltcHJvdmVtZW50IHdv cnRoIHB1cnN1aW5nLgo+Pj4+IChjb3VudGVyLmNhbGxzIGNvdWxkIGFsc28gYmUgdXNlZCB0byBm aWx0ZXIgb3V0ICJpbmFjdGl2ZSIgaXRlbXMsIGJ1dAo+Pj4+IGxpbmVzIGtlZXAgZGlzYXBwZWFy aW5nL3JlYXBwZWFyaW5nIGNhbiBjb25mdXNlIG1vbml0b3Jpbmcgc3lzdGVtcy4pCj4+Pgo+Pj4g UGxlYXNlIHNlZSBkaXNjdXNzaW9uIGF0Cj4+PiBodHRwczovL2xvcmUua2VybmVsLm9yZy9hbGwv MjAyNDEyMTEwODU2MTYuMjQ3MTkwMS0xLXF1aWNfemhlbmh1YWhAcXVpY2luYy5jb20vCj4+IAo+ PiBUaGFua3MgZm9yIHRoZSBpbmZvcm1hdGlvbi4KPj4gCj4+PiBNeSBwb2ludCBpcyB0aGF0IHdp dGggdGhpcyBjaGFuZ2Ugd2UgbG9zZSBpbmZvcm1hdGlvbiB3aGljaCBjYW4gYmUKPj4+IHVzZWZ1 bC4gRm9yIGV4YW1wbGUgaWYgSSB3YW50IHRvIGFuYWx5emUgYWxsIHRoZSBwbGFjZXMgaW4gdGhl IGtlcm5lbAo+Pj4gd2hlcmUgbWVtb3J5IGNhbiBiZSBwb3RlbnRpYWxseSBhbGxvY2F0ZWQsIHlv dXIgY2hhbmdlIHdvdWxkIHByZXZlbnQKPj4+IG1lIGZyb20gZG9pbmcgdGhhdAo+PiAKPj4gTWF5 YmUgdGhlIGZpbHRlciBjYW4gYmUgZGlzYWJsZWQgd2hlbiBERUJVRyBpcyBvbj8KPj4gCj4+ICAg PiBObywgSSBkaXNhZ3JlZS4gQWxsb2NhdGlvbiB0aGF0IHdhcyBuZXZlciBpbnZva2VkIGlzIG5v dCB0aGUgc2FtZSBhcwo+Pj4gbm8gYWxsb2NhdGlvbiBhdCBhbGwuIEhvdyB3b3VsZCB3ZSBrbm93 IHRoZSBkaWZmZXJlbmNlIGlmIHdlIGZpbHRlcgo+Pj4gb3V0IHRoZSBlbXB0eSBvbmVzPwo+PiAK Pj4gVG90YWxseSBhZ3JlZSB3aXRoIHRoaXMsICBJIHRoaW5rIChieXRlcyB8fCBjb3VudGVyLmNh bGxzKSAgZG9lcyBub3QgbWFrZSBnb29kIGZpbHRlci4gQWNjdW11bGF0aXZlIGNvdW50ZXIgaXMg dGhlIGFuc3dlci4gOikKPgo+aG1tLi4uIGl0IHJlYWxseSBkZXBlbmRzIG9uIHRoZSB1c2UgY2Fz ZSBJTUhPLiBJZiBtZW1vcnkgY29uc3VtcHRpb24gaXMgCj5hIGNvbmNlcm4sIHVzaW5nIGNvdW50 ZXIuY2FsbHMgc2hvdWxkIHN1ZmZpY2UuIEhvd2V2ZXIsIGZvciAKPnBlcmZvcm1hbmNlLXJlbGF0 ZWQgc2NlbmFyaW9zIGFzIHlvdSBzdGF0ZWQsIGl0J3MgZGVmaW5pdGVseSBiZXR0ZXIgdG8gCj51 c2UgYW4gYWNjdW11bGF0aXZlIGNvdW50ZXIuIgo+Qm90aCBvZiB0aGVzZSBjYW4ndCBhZGRyZXNz IFN1cmVuJ3MgY29tbWVudDogImlmIEkgd2FudCB0byBhbmFseXplIGFsbCAKPnRoZSBwbGFjZXMg aW4gdGhlIGtlcm5lbCB3aGVyZSBtZW1vcnkgY2FuIGJlIHBvdGVudGlhbGx5IGFsbG9jYXRlZCwg eW91ciAKPmNoYW5nZSB3b3VsZCBwcmV2ZW50IG1lIGZyb20gZG9pbmcgdGhhdCIsIGJ1dC4KCk9o LCBhcyBJIG1lbnRpb25lZCBhYm92ZSwgbWF5YmUgQ09ORklHX01FTV9BTExPQ19QUk9GSUxJTkdf REVCVUcgY2FuIGhlbHA6CndoZW4gREVCVUcgaXMgb24sIG5vdGhpbmcgaXMgZmlsdGVyZWQuCgoK RGF2aWQKCg==