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[66.187.233.206]) by smtp.gmail.com with ESMTPSA id d78sm4039758vke.41.2019.06.10.10.26.16 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 10 Jun 2019 10:26:17 -0700 (PDT) Message-ID: <1560187575.6132.70.camel@lca.pw> Subject: Re: [PATCH -next] arm64/mm: fix a bogus GFP flag in pgd_alloc() From: Qian Cai To: Will Deacon , Mark Rutland Date: Mon, 10 Jun 2019 13:26:15 -0400 In-Reply-To: <20190610114326.GF15979@fuggles.cambridge.arm.com> References: <1559656836-24940-1-git-send-email-cai@lca.pw> <20190604142338.GC24467@lakrids.cambridge.arm.com> <20190610114326.GF15979@fuggles.cambridge.arm.com> X-Mailer: Evolution 3.22.6 (3.22.6-10.el7) Mime-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190610_102620_363661_F1D5285D X-CRM114-Status: GOOD ( 21.98 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: catalin.marinas@arm.com, linux-kernel@vger.kernel.org, mhocko@kernel.org, linux-mm@kvack.org, vdavydov.dev@gmail.com, hannes@cmpxchg.org, cgroups@vger.kernel.org, akpm@linux-foundation.org, rppt@linux.ibm.com, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gTW9uLCAyMDE5LTA2LTEwIGF0IDEyOjQzICswMTAwLCBXaWxsIERlYWNvbiB3cm90ZToKPiBP biBUdWUsIEp1biAwNCwgMjAxOSBhdCAwMzoyMzozOFBNICswMTAwLCBNYXJrIFJ1dGxhbmQgd3Jv dGU6Cj4gPiBPbiBUdWUsIEp1biAwNCwgMjAxOSBhdCAxMDowMDozNkFNIC0wNDAwLCBRaWFuIENh aSB3cm90ZToKPiA+ID4gVGhlIGNvbW1pdCAiYXJtNjQ6IHN3aXRjaCB0byBnZW5lcmljIHZlcnNp b24gb2YgcHRlIGFsbG9jYXRpb24iCj4gPiA+IGludHJvZHVjZWQgZW5kbGVzcyBmYWlsdXJlcyBk dXJpbmcgYm9vdCBsaWtlLAo+ID4gPiAKPiA+ID4ga29iamVjdF9hZGRfaW50ZXJuYWwgZmFpbGVk IGZvciBwZ2RfY2FjaGUoMjg1OmNocm9ueWQuc2VydmljZSkgKGVycm9yOgo+ID4gPiAtMiBwYXJl bnQ6IGNncm91cCkKPiA+ID4gCj4gPiA+IEl0IHR1cm5zIG91dCBfX0dGUF9BQ0NPVU5UIGlzIHBh c3NlZCB0byBrZXJuZWwgcGFnZSB0YWJsZSBhbGxvY2F0aW9ucwo+ID4gPiBhbmQgdGhlbiBsYXRl ciBtZW1jZyBmaW5kcyBvdXQgdGhvc2UgZG9uJ3QgYmVsb25nIHRvIGFueSBjZ3JvdXAuCj4gPiAK PiA+IE1pa2UsIEkgdW5kZXJzdG9vZCBmcm9tIFsxXSB0aGF0IHRoaXMgd2Fzbid0IGV4cGVjdGVk IHRvIGJlIGEgcHJvYmxlbSwKPiA+IGFzIHRoZSBhY2NvdW50aW5nIHNob3VsZCBieXBhc3Mga2Vy bmVsIHRocmVhZHMuCj4gPiAKPiA+IFdhcyB0aGF0IGFzc3VtcHRpb24gd3JvbmcsIG9yIGlzIHNv bWV0aGluZyBkaWZmZXJlbnQgaGFwcGVuaW5nIGhlcmU/Cj4gPiAKPiA+ID4gCj4gPiA+IGJhY2t0 cmFjZToKPiA+ID4gwqAga29iamVjdF9hZGRfaW50ZXJuYWwKPiA+ID4gwqAga29iamVjdF9pbml0 X2FuZF9hZGQKPiA+ID4gwqAgc3lzZnNfc2xhYl9hZGQrMHgxYTgKPiA+ID4gwqAgX19rbWVtX2Nh Y2hlX2NyZWF0ZQo+ID4gPiDCoCBjcmVhdGVfY2FjaGUKPiA+ID4gwqAgbWVtY2dfY3JlYXRlX2tt ZW1fY2FjaGUKPiA+ID4gwqAgbWVtY2dfa21lbV9jYWNoZV9jcmVhdGVfZnVuYwo+ID4gPiDCoCBw cm9jZXNzX29uZV93b3JrCj4gPiA+IMKgIHdvcmtlcl90aHJlYWQKPiA+ID4gwqAga3RocmVhZAo+ ID4gPiAKPiA+ID4gU2lnbmVkLW9mZi1ieTogUWlhbiBDYWkgPGNhaUBsY2EucHc+Cj4gPiA+IC0t LQo+ID4gPiDCoGFyY2gvYXJtNjQvbW0vcGdkLmMgfCAyICstCj4gPiA+IMKgMSBmaWxlIGNoYW5n ZWQsIDEgaW5zZXJ0aW9uKCspLCAxIGRlbGV0aW9uKC0pCj4gPiA+IAo+ID4gPiBkaWZmIC0tZ2l0 IGEvYXJjaC9hcm02NC9tbS9wZ2QuYyBiL2FyY2gvYXJtNjQvbW0vcGdkLmMKPiA+ID4gaW5kZXgg NzY5NTE2Y2I2Njc3Li41M2M0OGY1Yzg3NjUgMTAwNjQ0Cj4gPiA+IC0tLSBhL2FyY2gvYXJtNjQv bW0vcGdkLmMKPiA+ID4gKysrIGIvYXJjaC9hcm02NC9tbS9wZ2QuYwo+ID4gPiBAQCAtMzgsNyAr MzgsNyBAQCBwZ2RfdCAqcGdkX2FsbG9jKHN0cnVjdCBtbV9zdHJ1Y3QgKm1tKQo+ID4gPiDCoAlp ZiAoUEdEX1NJWkUgPT0gUEFHRV9TSVpFKQo+ID4gPiDCoAkJcmV0dXJuIChwZ2RfdCAqKV9fZ2V0 X2ZyZWVfcGFnZShnZnApOwo+ID4gPiDCoAllbHNlCj4gPiA+IC0JCXJldHVybiBrbWVtX2NhY2hl X2FsbG9jKHBnZF9jYWNoZSwgZ2ZwKTsKPiA+ID4gKwkJcmV0dXJuIGttZW1fY2FjaGVfYWxsb2Mo cGdkX2NhY2hlLCBHRlBfUEdUQUJMRV9LRVJORUwpOwo+ID4gCj4gPiBUaGlzIGlzIHVzZWQgdG8g YWxsb2NhdGUgUEdEcyBmb3IgYm90aCB1c2VyIGFuZCBrZXJuZWwgcGFnZXRhYmxlcyAoZS5nLgo+ ID4gZm9yIHRoZSBlZmkgcnVudGltZSBzZXJ2aWNlcyksIHNvIHdoaWxlIHRoaXMgbWF5IGZpeCB0 aGUgcmVncmVzc2lvbiwgSSdtCj4gPiBub3Qgc3VyZSBpdCdzIHRoZSByaWdodCBmaXguCj4gPiAK PiA+IERvIHdlIG5lZWQgYSBzZXBhcmF0ZSBwZ2RfYWxsb2Nfa2VybmVsKCk/Cj4gCj4gU28gY2Fu IEkgdGFrZSB0aGUgYWJvdmUgZm9yIC1yYzUsIG9yIGlzIHNvbWVib2R5IGVsc2Ugd29ya2luZyBv biBhIGRpZmZlcmVudAo+IGZpeCB0byBpbXBsZW1lbnQgcGdkX2FsbG9jX2tlcm5lbCgpPwoKVGhl IG9mZmVuc2l2ZSBjb21taXQgImFybTY0OiBzd2l0Y2ggdG8gZ2VuZXJpYyB2ZXJzaW9uIG9mIHB0 ZSBhbGxvY2F0aW9uIiBpcyBub3QKeWV0IGluIHRoZSBtYWlubGluZSwgYnV0IG9ubHkgaW4gdGhl IEFuZHJldydzIHRyZWUgYW5kIGxpbnV4LW5leHQsIGFuZCBJIGRvdWJ0CkFuZHJldyB3aWxsIHB1 c2ggdGhpcyBvdXQgYW55IHRpbWUgc29vbmVyIGdpdmVuIGl0IGlzIGJyb2tlbi4KCl9fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwg bWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8v bGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK