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Thu, 16 Jan 2020 07:52:55 -0800 (PST) Received: from N-20L6PF1KTYA2 ([131.228.2.20]) by smtp.gmail.com with ESMTPSA id m24sm13139255ljb.81.2020.01.16.07.52.52 (version=TLS1_2 cipher=AES128-GCM-SHA256 bits=128/128); Thu, 16 Jan 2020 07:52:54 -0800 (PST) Date: Thu, 16 Jan 2020 23:52:52 +0800 From: "Li Xinhai" To: yang.shi , akpm Cc: "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] mm: mempolicy: use VM_BUG_ON_VMA in queue_pages_test_walk() References: <1579068565-110432-1-git-send-email-yang.shi@linux.alibaba.com>, <2020011520081970082765@gmail.com>, <2a9ad6d6-af98-987a-0878-6058702db912@linux.alibaba.com> X-Priority: 3 X-GUID: C73F71BE-B475-4FB7-B14C-D1CF98651D45 X-Has-Attach: no X-Mailer: Foxmail 7.2.13.365[cn] Mime-Version: 1.0 Message-ID: <20200116235250155994144@gmail.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: T24gMjAyMC0wMS0xNsKgYXQgMDE6MjfCoFlhbmcgU2hpwqB3cm90ZToKPgo+Cj5PbiAxLzE1LzIw IDQ6MDggQU0sIExpIFhpbmhhaSB3cm90ZToKPj4gT24gMjAyMC0wMS0xNcKgYXQgMTQ6MDnCoFlh bmcgU2hpwqB3cm90ZToKPj4+IFRoZSBWTV9CVUdfT04oKSBpcyBhbHJlYWR5IHVzZWQgYnkgcXVl dWVfcGFnZXNfdGVzdF93YWxrKCksIGl0IHNvdW5kcwo+Pj4gYmV0dGVyIHRvIGR1bXAgbW9yZSBk ZWJ1ZyBpbmZvcm1hdGlvbiBieSB1c2luZyBWTV9CVUdfT05fVk1BKCkgdG8gaGVscAo+Pj4gZGVi dWdnaW5nLgo+Pj4KPj4+IFNpZ25lZC1vZmYtYnk6IFlhbmcgU2hpIDx5YW5nLnNoaUBsaW51eC5h bGliYWJhLmNvbT4KPj4gVGhlIC50ZXN0X3dhbGsoKSBpcyB0byBiZSBjYWxsZWQgZnJvbSBwYWdl d2FsayB3aXRoIHRoZSBydWxlIHRoYXQgJ3N0YXJ0Jwo+PiBhbmQgJ2VuZCcgbXVzdCB3aXRoaW4g cmFuZ2Ugb2Ygdm1hLCBpbiBjYXNlIHRoZSBydWxlIGlzIGJyb2tlLCB3ZSBkZXRlY3QKPj4gaXQu IFRoaXMgaXMgbm90IHF1aXRlIHJlbGV2YW50IHRvIGEgYnVnIG9mIHBhcnRpY3VsYXIgdm1hLgo+ Cj5CdXQgd2hlbiB5b3UgcnVuIGludG8gVk1BIHJhbmdlIGNoZWNrIGZhaWx1cmUsIGlzbid0IGl0 IGhlbHBmdWwgdG8gZHVtcAo+dGhlIFZNQSByYW5nZSBpbmZvcm1hdGlvbiB0byBlYXNlIGRlYnVn Z2luZz8gQW5kLCBWTV9CVUdfT04gaXMgYWxyZWFkeQo+dXNlZCBpbiB0aGUgY29kZSwgSSdtIHN1 cHBvc2VkIHRoZSB1c2VycyBtYXkgcHJlZmVyIG1vcmUgZGVidWcKPmluZm9ybWF0aW9uIGR1bXBl ZCBmb3IgZGVidWcga2VybmVsLgo+IApHb3QgeW91ciBwb2ludCwgaXQgaXMgYWxyZWFkeSB1c2Vk IGJldHRlciBwdXQgbW9yZSBpbmZvcm1hdGlvbi4KPj4KPj4+IC0tLQo+Pj4gbW0vbWVtcG9saWN5 LmMgfCAyICstCj4+PiAxIGZpbGUgY2hhbmdlZCwgMSBpbnNlcnRpb24oKyksIDEgZGVsZXRpb24o LSkKPj4+Cj4+PiBkaWZmIC0tZ2l0IGEvbW0vbWVtcG9saWN5LmMgYi9tbS9tZW1wb2xpY3kuYwo+ Pj4gaW5kZXggMDY3Y2Y3ZC4uODAxZDQ1ZCAxMDA2NDQKPj4+IC0tLSBhL21tL21lbXBvbGljeS5j Cj4+PiArKysgYi9tbS9tZW1wb2xpY3kuYwo+Pj4gQEAgLTYyMSw3ICs2MjEsNyBAQCBzdGF0aWMg aW50IHF1ZXVlX3BhZ2VzX3Rlc3Rfd2Fsayh1bnNpZ25lZCBsb25nIHN0YXJ0LCB1bnNpZ25lZCBs b25nIGVuZCwKPj4+IHVuc2lnbmVkIGxvbmcgZmxhZ3MgPSBxcC0+ZmxhZ3M7Cj4+Pgo+Pj4gLyog cmFuZ2UgY2hlY2sgZmlyc3QgKi8KPj4+IC0JVk1fQlVHX09OKCh2bWEtPnZtX3N0YXJ0ID4gc3Rh cnQpIHx8ICh2bWEtPnZtX2VuZCA8IGVuZCkpOwo+Pj4gKwlWTV9CVUdfT05fVk1BKCh2bWEtPnZt X3N0YXJ0ID4gc3RhcnQpIHx8ICh2bWEtPnZtX2VuZCA8IGVuZCksIHZtYSk7Cj4+Pgo+Pj4gaWYg KCFxcC0+Zmlyc3QpIHsKPj4+IHFwLT5maXJzdCA9IHZtYTsKPj4+IC0tCj4+PiAxLjguMy4xCj4+ Pgo+PiA+Cj4=