From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Yang Subject: Re: [PATCH 3/5] mm/mremap: use pmd_addr_end to calculate next in move_page_tables() Date: Wed, 29 Jan 2020 08:28:38 +0800 Message-ID: <20200129002838.GA12835@richard> References: <20200117232254.2792-1-richardw.yang@linux.intel.com> <20200117232254.2792-4-richardw.yang@linux.intel.com> <7147774a-14e9-4ff3-1548-4565f0d214d5@gmail.com> <20200128004301.GD20624@richard> <20200128232907.GA11467@richard> <27b70b0c-7945-cc85-8321-d9e4b6f17865@gmail.com> Reply-To: Wei Yang Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <27b70b0c-7945-cc85-8321-d9e4b6f17865@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane-mx.org@lists.infradead.org To: Dmitry Osipenko Cc: "linux-arm-kernel@lists.infradead.org" , thellstrom@vmware.com, yang.shi@linux.alibaba.com, aneesh.kumar@linux.ibm.com, Russell King - ARM Linux , Jon Hunter , linux-mm@kvack.org, Thierry Reding , Wei Yang , "linux-tegra@vger.kernel.org" , kirill@shutemov.name, akpm@linux-foundation.org, dan.j.williams@intel.com, linux-kernel@vger.kernel.org List-Id: linux-tegra@vger.kernel.org T24gV2VkLCBKYW4gMjksIDIwMjAgYXQgMDI6MzU6MjVBTSArMDMwMCwgRG1pdHJ5IE9zaXBlbmtv IHdyb3RlOgo+MjkuMDEuMjAyMCAwMjoyOSwgV2VpIFlhbmcg0L/QuNGI0LXRgjoKPj4gT24gVHVl LCBKYW4gMjgsIDIwMjAgYXQgMDY6NTk6NDhQTSArMDMwMCwgRG1pdHJ5IE9zaXBlbmtvIHdyb3Rl Ogo+Pj4gMjguMDEuMjAyMCAwMzo0MywgV2VpIFlhbmcg0L/QuNGI0LXRgjoKPj4+PiBPbiBTdW4s IEphbiAyNiwgMjAyMCBhdCAwNTo0Nzo1N1BNICswMzAwLCBEbWl0cnkgT3NpcGVua28gd3JvdGU6 Cj4+Pj4+IDE4LjAxLjIwMjAgMDI6MjIsIFdlaSBZYW5nINC/0LjRiNC10YI6Cj4+Pj4+PiBVc2Ug dGhlIGdlbmVyYWwgaGVscGVyIGluc3RlYWQgb2YgZG8gaXQgYnkgaGFuZC4KPj4+Pj4+Cj4+Pj4+ PiBTaWduZWQtb2ZmLWJ5OiBXZWkgWWFuZyA8cmljaGFyZHcueWFuZ0BsaW51eC5pbnRlbC5jb20+ Cj4+Pj4+PiAtLS0KPj4+Pj4+ICBtbS9tcmVtYXAuYyB8IDcgKystLS0tLQo+Pj4+Pj4gIDEgZmls ZSBjaGFuZ2VkLCAyIGluc2VydGlvbnMoKyksIDUgZGVsZXRpb25zKC0pCj4+Pj4+Pgo+Pj4+Pj4g ZGlmZiAtLWdpdCBhL21tL21yZW1hcC5jIGIvbW0vbXJlbWFwLmMKPj4+Pj4+IGluZGV4IGMyYWY4 YmE0YmE0My4uYTI1ODkxNGYzZWUxIDEwMDY0NAo+Pj4+Pj4gLS0tIGEvbW0vbXJlbWFwLmMKPj4+ Pj4+ICsrKyBiL21tL21yZW1hcC5jCj4+Pj4+PiBAQCAtMjUzLDExICsyNTMsOCBAQCB1bnNpZ25l ZCBsb25nIG1vdmVfcGFnZV90YWJsZXMoc3RydWN0IHZtX2FyZWFfc3RydWN0ICp2bWEsCj4+Pj4+ PiAgCj4+Pj4+PiAgCWZvciAoOyBvbGRfYWRkciA8IG9sZF9lbmQ7IG9sZF9hZGRyICs9IGV4dGVu dCwgbmV3X2FkZHIgKz0gZXh0ZW50KSB7Cj4+Pj4+PiAgCQljb25kX3Jlc2NoZWQoKTsKPj4+Pj4+ IC0JCW5leHQgPSAob2xkX2FkZHIgKyBQTURfU0laRSkgJiBQTURfTUFTSzsKPj4+Pj4+IC0JCS8q IGV2ZW4gaWYgbmV4dCBvdmVyZmxvd2VkLCBleHRlbnQgYmVsb3cgd2lsbCBiZSBvayAqLwo+Pj4+ Pj4gKwkJbmV4dCA9IHBtZF9hZGRyX2VuZChvbGRfYWRkciwgb2xkX2VuZCk7Cj4+Pj4+PiAgCQll eHRlbnQgPSBuZXh0IC0gb2xkX2FkZHI7Cj4+Pj4+PiAtCQlpZiAoZXh0ZW50ID4gb2xkX2VuZCAt IG9sZF9hZGRyKQo+Pj4+Pj4gLQkJCWV4dGVudCA9IG9sZF9lbmQgLSBvbGRfYWRkcjsKPj4+Pj4+ ICAJCW9sZF9wbWQgPSBnZXRfb2xkX3BtZCh2bWEtPnZtX21tLCBvbGRfYWRkcik7Cj4+Pj4+PiAg CQlpZiAoIW9sZF9wbWQpCj4+Pj4+PiAgCQkJY29udGludWU7Cj4+Pj4+PiBAQCAtMzAxLDcgKzI5 OCw3IEBAIHVuc2lnbmVkIGxvbmcgbW92ZV9wYWdlX3RhYmxlcyhzdHJ1Y3Qgdm1fYXJlYV9zdHJ1 Y3QgKnZtYSwKPj4+Pj4+ICAKPj4+Pj4+ICAJCWlmIChwdGVfYWxsb2MobmV3X3ZtYS0+dm1fbW0s IG5ld19wbWQpKQo+Pj4+Pj4gIAkJCWJyZWFrOwo+Pj4+Pj4gLQkJbmV4dCA9IChuZXdfYWRkciAr IFBNRF9TSVpFKSAmIFBNRF9NQVNLOwo+Pj4+Pj4gKwkJbmV4dCA9IHBtZF9hZGRyX2VuZChuZXdf YWRkciwgbmV3X2FkZHIgKyBsZW4pOwo+Pj4+Pj4gIAkJaWYgKGV4dGVudCA+IG5leHQgLSBuZXdf YWRkcikKPj4+Pj4+ICAJCQlleHRlbnQgPSBuZXh0IC0gbmV3X2FkZHI7Cj4+Pj4+PiAgCQltb3Zl X3B0ZXModm1hLCBvbGRfcG1kLCBvbGRfYWRkciwgb2xkX2FkZHIgKyBleHRlbnQsIG5ld192bWEs Cj4+Pj4+Pgo+Pj4+Pgo+Pj4+PiBIZWxsbyBXZWksCj4+Pj4+Cj4+Pj4+IFN0YXJ0aW5nIHdpdGgg bmV4dC0yMDIwMDEyMiwgSSdtIHNlZWluZyB0aGUgZm9sbG93aW5nIGluIEtNU0cgb24gTlZJRElB Cj4+Pj4+IFRlZ3JhIChBUk0zMik6Cj4+Pj4+Cj4+Pj4+ICBCVUc6IEJhZCByc3MtY291bnRlciBz dGF0ZSBtbToocHRydmFsKSB0eXBlOk1NX0FOT05QQUdFUyB2YWw6MTkwCj4+Pj4+Cj4+Pj4KPj4+ PiBUaGFua3MuCj4+Pj4KPj4+PiBXb3VsZCB5b3UgbWluZCBsZXR0aW5nIG1lIGtub3cgd2hpY2gg Y2FzZSB5b3UgYXJlIHRlc3Rpbmc/Cj4+Pgo+Pj4gTm90aGluZyBzcGVjaWFsLCBzeXN0ZW1kIHN0 YXJ0cyB0byBmYWxsIGFwYXJ0IGR1cmluZyBib290Lgo+Pj4KPj4+PiBPciB0aGUgc3BlY2lhbCB0 aGluZyBpcyAzMi1iaXQgcGxhdGZvcm0/Cj4+PiBJIGhhdmUgYSBsaW1pdGVkIGtub3dsZWRnZSBh Ym91dCBtbS8sIHNvIGNhbid0IHByb3ZpZGUgZGV0YWlsZWQgZXhwbGFuYXRpb24uCj4+Pgo+Pj4g UGxlYXNlIHRha2UgYSBsb29rIGF0IHRoaXM6Cj4+Pgo+Pj4gWzFdCj4+PiBodHRwczovL2VsaXhp ci5ib290bGluLmNvbS9saW51eC92NS41L3NvdXJjZS9hcmNoL2FybS9pbmNsdWRlL2FzbS9wZ3Rh YmxlLTJsZXZlbC5oI0wyMTAKPj4+Cj4+PiBbMl0KPj4+IGh0dHBzOi8vZWxpeGlyLmJvb3RsaW4u Y29tL2xpbnV4L3Y1LjUvc291cmNlL2luY2x1ZGUvYXNtLWdlbmVyaWMvcGd0YWJsZS5oI0w1NDkK Pj4+Cj4+PiBbM10KPj4+IGh0dHBzOi8vZ2l0Lmtlcm5lbC5vcmcvcHViL3NjbS9saW51eC9rZXJu ZWwvZ2l0L3RvcnZhbGRzL2xpbnV4LmdpdC9jb21taXQvP2lkPWMwYmExMGI1MTJlYjJlMmEzODg4 YjZlNmNjMGUwODlmNWU3YTE5MWIKPj4gCj4+IFRoYW5rcywgSSBzZWUgdGhlIGRpZmZlcmVuY2Ug aGVyZS4KPj4gCj4+IElmIHRoaXMgaXMgdGhlIGNhc2UsIHdlIGNhbid0IHVzZSBwbWRfYWRkcl9l bmQoKSB0byBzaW1wbGlmeSB0aGUgY2FsY3VsYXRpb24uCj4+IFRoaXMgY2hhbmdlcyB0aGUgYmVo YXZpb3IuCj4+IAo+PiBJIHdvdWxkIHByZXBhcmUgYW5vdGhlciBwYXRjaCBzZXQgdG8gZml4IHRo aXMuIFdvdWxkIHlvdSBtaW5kIGhlbHBpbmcgbWUKPj4gdmVyaWZ5IG9uIHlvdXIgcGxhdGZvcm0/ Cj4KPlN1cmUsIHBsZWFzZSBmZWVsIGZyZWUgdG8gQ0MgbWUgb24gdGhhdCBwYXRjaC4KClRoYW5r cywgeW91IGFyZSBpbiB0aGUgY2MgbGlzdCBvZiB2Mi4KCkhvcGUgdGhpcyBvbmUgd29ya3MgZmlu ZSBvbiBBUk0uCgotLSAKV2VpIFlhbmcKSGVscCB5b3UsIEhlbHAgbWUKCl9fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwgbWFpbGlu ZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMu aW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK