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Wed, 15 Jan 2020 04:08:25 -0800 (PST) Received: from N-20L6PF1KTYA2 ([131.228.2.20]) by smtp.gmail.com with ESMTPSA id q10sm9129139ljj.60.2020.01.15.04.08.21 (version=TLS1_2 cipher=AES128-GCM-SHA256 bits=128/128); Wed, 15 Jan 2020 04:08:24 -0800 (PST) Date: Wed, 15 Jan 2020 20:08:21 +0800 From: "Li Xinhai" To: yang.shi , akpm Cc: yang.shi , "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> X-Priority: 3 X-GUID: 44011BEF-3FC3-4880-85FA-D532723838F5 X-Has-Attach: no X-Mailer: Foxmail 7.2.13.365[cn] Mime-Version: 1.0 Message-ID: <2020011520081970082765@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: T24gMjAyMC0wMS0xNcKgYXQgMTQ6MDnCoFlhbmcgU2hpwqB3cm90ZToKPlRoZSBWTV9CVUdfT04o KSBpcyBhbHJlYWR5IHVzZWQgYnkgcXVldWVfcGFnZXNfdGVzdF93YWxrKCksIGl0IHNvdW5kcwo+ YmV0dGVyIHRvIGR1bXAgbW9yZSBkZWJ1ZyBpbmZvcm1hdGlvbiBieSB1c2luZyBWTV9CVUdfT05f Vk1BKCkgdG8gaGVscAo+ZGVidWdnaW5nLgo+Cj5TaWduZWQtb2ZmLWJ5OiBZYW5nIFNoaSA8eWFu Zy5zaGlAbGludXguYWxpYmFiYS5jb20+IAoKVGhlIC50ZXN0X3dhbGsoKSBpcyB0byBiZSBjYWxs ZWQgZnJvbSBwYWdld2FsayB3aXRoIHRoZSBydWxlIHRoYXQgJ3N0YXJ0JwphbmQgJ2VuZCcgbXVz dCB3aXRoaW4gcmFuZ2Ugb2Ygdm1hLCBpbiBjYXNlIHRoZSBydWxlIGlzIGJyb2tlLCB3ZSBkZXRl Y3QKaXQuIFRoaXMgaXMgbm90IHF1aXRlIHJlbGV2YW50IHRvIGEgYnVnIG9mIHBhcnRpY3VsYXIg dm1hLsKgCgo+LS0tCj4gbW0vbWVtcG9saWN5LmMgfCAyICstCj4gMSBmaWxlIGNoYW5nZWQsIDEg aW5zZXJ0aW9uKCspLCAxIGRlbGV0aW9uKC0pCj4KPmRpZmYgLS1naXQgYS9tbS9tZW1wb2xpY3ku YyBiL21tL21lbXBvbGljeS5jCj5pbmRleCAwNjdjZjdkLi44MDFkNDVkIDEwMDY0NAo+LS0tIGEv bW0vbWVtcG9saWN5LmMKPisrKyBiL21tL21lbXBvbGljeS5jCj5AQCAtNjIxLDcgKzYyMSw3IEBA IHN0YXRpYyBpbnQgcXVldWVfcGFnZXNfdGVzdF93YWxrKHVuc2lnbmVkIGxvbmcgc3RhcnQsIHVu c2lnbmVkIGxvbmcgZW5kLAo+IHVuc2lnbmVkIGxvbmcgZmxhZ3MgPSBxcC0+ZmxhZ3M7Cj4KPiAv KiByYW5nZSBjaGVjayBmaXJzdCAqLwo+LQlWTV9CVUdfT04oKHZtYS0+dm1fc3RhcnQgPiBzdGFy dCkgfHwgKHZtYS0+dm1fZW5kIDwgZW5kKSk7Cj4rCVZNX0JVR19PTl9WTUEoKHZtYS0+dm1fc3Rh cnQgPiBzdGFydCkgfHwgKHZtYS0+dm1fZW5kIDwgZW5kKSwgdm1hKTsKPgo+IGlmICghcXAtPmZp cnN0KSB7Cj4gcXAtPmZpcnN0ID0gdm1hOwo+LS0KPjEuOC4zLjEKPgo+