From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 35B31CE7A89 for ; Sat, 23 Sep 2023 16:22:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=lmrS3Hjk1fsRaUD/KJl92Gaj5759nq+EgW4/Yx76yPk=; b=vkJezAOj5yF9Ev 2xMAag/uAWli36MiwcY0IpSPAtJAtLQeQGga4uSP0c42UsL7aVdmy4WFU9MfflOXD1Cv8V6wJL056 Ydpvq9UFVPwkACG0HrwTQOzVTuhEnUAI2THsvvQCE5xWCxak9NTWoPu3LKKDZ1Okp8C8460/pL2YW uJGBrybZ9q8nRYaKV1K0+rvEi160Q9oh2riNyvn7PdUdn3FJcKBuxdj7HH9Qci55kxNIxDsgwv55E k5KFdI2HT7AxIvTA+a+mw6wLYhI1VtqPhdxZ0GZqiYwRXzO0BmxBrRa5O9ttWn7Gj2+vo13Sgi8nm irXpK3T761uz9kmsPMOg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qk5OK-00BByj-0A; Sat, 23 Sep 2023 16:22:00 +0000 Received: from sin.source.kernel.org ([145.40.73.55]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qk5OG-00BBwQ-0c; Sat, 23 Sep 2023 16:21:58 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id AC50ECE1ED5; Sat, 23 Sep 2023 16:21:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 13699C433C7; Sat, 23 Sep 2023 16:21:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1695486112; bh=epTBeih4MHoaHBpc48qML+P/ARMeb7d09SNlM/hQxw0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ofaXj1oNTs/VBLYlvMmVzGA3HsxAlJskkj7XrUmUTDzx/0RPqgkm91Z7JgVfNThA+ jF51Gkq+/u8f3Pl9hK1BmDVAsawYyQVDaZs6NfxlIM+VHJDmPuMKHs1TOy64LPBIRA iuS6IcsT1zTuxev9K6pIMvYP5Qodr6WpU9hqxXwD4ixmanyA2+kLliocF453RBJkLn 2TOewMq1E/GW1XYu4R2CCfYUfUpS+zAxWOefS4IClhNx863WjbFLsgwwYry2hXBCvO tH3ho75+Hir/pB3LPn6CIdrcMEvj+m5czuQ0yH+wcE6dXhoEdwLJTXJ/XABJAw1gmy 81I0fO8rK/6Jg== Date: Sat, 23 Sep 2023 19:20:55 +0300 From: Mike Rapoport To: Song Liu Cc: linux-kernel@vger.kernel.org, Andrew Morton , =?iso-8859-1?Q?Bj=F6rn_T=F6pel?= , Catalin Marinas , Christophe Leroy , "David S. Miller" , Dinh Nguyen , Heiko Carstens , Helge Deller , Huacai Chen , Kent Overstreet , Luis Chamberlain , Mark Rutland , Michael Ellerman , Nadav Amit , "Naveen N. Rao" , Palmer Dabbelt , Puranjay Mohan , Rick Edgecombe , Russell King , Steven Rostedt , Thomas Bogendoerfer , Thomas Gleixner , Will Deacon , bpf@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, linux-modules@vger.kernel.org, linux-parisc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, loongarch@lists.linux.dev, netdev@vger.kernel.org, sparclinux@vger.kernel.org, x86@kernel.org Subject: Re: [PATCH v3 06/13] mm/execmem: introduce execmem_data_alloc() Message-ID: <20230923162055.GL3303@kernel.org> References: <20230918072955.2507221-1-rppt@kernel.org> <20230918072955.2507221-7-rppt@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230923_092156_658711_9E3A4185 X-CRM114-Status: GOOD ( 35.88 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org T24gVGh1LCBTZXAgMjEsIDIwMjMgYXQgMDM6NTI6MjFQTSAtMDcwMCwgU29uZyBMaXUgd3JvdGU6 Cj4gT24gTW9uLCBTZXAgMTgsIDIwMjMgYXQgMTI6MzHigK9BTSBNaWtlIFJhcG9wb3J0IDxycHB0 QGtlcm5lbC5vcmc+IHdyb3RlOgo+ID4KPiBbLi4uXQo+ID4gZGlmZiAtLWdpdCBhL2luY2x1ZGUv bGludXgvZXhlY21lbS5oIGIvaW5jbHVkZS9saW51eC9leGVjbWVtLmgKPiA+IGluZGV4IDUxOWJk ZmRjYTU5NS4uMDlkNDVhYzc4NmU5IDEwMDY0NAo+ID4gLS0tIGEvaW5jbHVkZS9saW51eC9leGVj bWVtLmgKPiA+ICsrKyBiL2luY2x1ZGUvbGludXgvZXhlY21lbS5oCj4gPiBAQCAtMjksNiArMjks NyBAQAo+ID4gICAqIEBFWEVDTUVNX0tQUk9CRVM6IHBhcmFtZXRlcnMgZm9yIGtwcm9iZXMKPiA+ ICAgKiBARVhFQ01FTV9GVFJBQ0U6IHBhcmFtZXRlcnMgZm9yIGZ0cmFjZQo+ID4gICAqIEBFWEVD TUVNX0JQRjogcGFyYW1ldGVycyBmb3IgQlBGCj4gPiArICogQEVYRUNNRU1fTU9EVUxFX0RBVEE6 IHBhcmFtZXRlcnMgZm9yIG1vZHVsZSBkYXRhIHNlY3Rpb25zCj4gPiAgICogQEVYRUNNRU1fVFlQ RV9NQVg6Cj4gPiAgICovCj4gPiAgZW51bSBleGVjbWVtX3R5cGUgewo+ID4gQEAgLTM3LDYgKzM4 LDcgQEAgZW51bSBleGVjbWVtX3R5cGUgewo+ID4gICAgICAgICBFWEVDTUVNX0tQUk9CRVMsCj4g PiAgICAgICAgIEVYRUNNRU1fRlRSQUNFLAo+IAo+IEluIGxvbmdlciB0ZXJtLCBJIHRoaW5rIHdl IGNhbiBpbXByb3ZlIHRoZSBKSVRlZCBjb2RlIGFuZCBtZXJnZQo+IGtwcm9iZS9mdHJhY2UvYnBm LiB0byB1c2UgdGhlIHNhbWUgcmFuZ2VzLiBBbHNvLCBkbyB3ZSBuZWVkIHNwZWNpYWwKPiBzZXR0 aW5nIGZvciBGVFJBQ0U/IElmIG5vdCwgbGV0J3MganVzdCByZW1vdmUgaXQuCgpJIGRvbid0IHRo aW5rIHdlIG5lZWQgdG8gbGltaXQgaG93IHRoZSBKSVRlZCBjb2RlIGlzIGdlbmVyYXRlZCBiZWNh dXNlIHdlCndhbnQgdG8gc3VwcG9ydCBmZXdlciBhZGRyZXNzIHNwYWNlIHJhbmdlcyBmb3IgaXQu IAoKQXMgZm9yIEZUUkFDRSwgbm93IGl0J3Mgb25seSBuZWVkZWQgb24geDg2IGFuZCBzMzkwIGFu ZCB0aGVyZSBpdCBoYXBwZW5zCnRvIHVzZSB0aGUgc2FtZSByYW5nZXMgYXMgTU9EVUxFUyBhbmQg dGhlIHJlc3QsIGJ1dCBpdCBzdGlsbCBnaXZlcyBzb21lCm5vdGlvbiBvZiBwb3RlbnRpYWwgc2Vt YW50aWMgZGlmZmVyZW5jZXMgYW5kIHRoZSBvdmVyaGVhZCBvZiBrZWVwaW5nIGl0IGlzCnJlYWxs eSBuZWdsaWdpYmxlLgogCj4gPiAgICAgICAgIEVYRUNNRU1fQlBGLAo+ID4gKyAgICAgICBFWEVD TUVNX01PRFVMRV9EQVRBLAo+ID4gICAgICAgICBFWEVDTUVNX1RZUEVfTUFYLAo+ID4gIH07Cj4g Cj4gT3ZlcmFsbCwgaXQgaXMgZ3JlYXQgdGhhdCBrcHJvYmUvZnRyYWNlL2JwZiBubyBsb25nZXIg ZGVwZW5kIG9uIG1vZHVsZXMuCj4gCj4gT1RPSCwgSSB0aGluayB3ZSBzaG91bGQgbWVyZ2UgZXhl Y21lbV90eXBlIGFuZCBleGlzdGluZyBtb2RfbWVtX3R5cGUuCj4gT3RoZXJ3aXNlLCB3ZSBzdGls bCBuZWVkIHRvIGhhbmRsZSBwYWdlIHBlcm1pc3Npb25zIGluIG11bHRpcGxlIHBsYWNlcy4KPiBX aGF0IGlzIG91ciBwbGFuIGZvciB0aGF0PwoKTWF5YmUsIGJ1dCBJIHRoaW5rIHRoaXMgaXMgdG9v IGVhcmx5LiBUaGVyZSBhcmUgc2V2ZXJhbCB0aGluZ3MgbWlzc2luZwpiZWZvcmUgd2UgY291bGQg cmVtb3ZlIHNldF9tZW1vcnkgdXNhZ2UgZnJvbSBtb2R1bGVzLiBFLmcuIHRvIHVzZSBST1gKYWxs b2NhdGlvbnMgb24geDg2IHdlIGF0IGxlYXN0IHNob3VsZCB1cGRhdGUgYWx0ZXJuYXRpdmVzIGhh bmRsaW5nIGFuZApyZWFjaCBhIGNvbnNlbnN1cyBhYm91dCBzeW5jaHJvbml6YXRpb24gQW5keSBt ZW50aW9uZWQgaW4gaGlzIGNvbW1lbnRzIHRvCnYyLgogCj4gVGhhbmtzLAo+IFNvbmcKPiAKPiAK PiA+Cj4gPiBAQCAtMTA3LDYgKzEwOSwyMyBAQCBzdHJ1Y3QgZXhlY21lbV9wYXJhbXMgKmV4ZWNt ZW1fYXJjaF9wYXJhbXModm9pZCk7Cj4gPiAgICovCj4gPiAgdm9pZCAqZXhlY21lbV90ZXh0X2Fs bG9jKGVudW0gZXhlY21lbV90eXBlIHR5cGUsIHNpemVfdCBzaXplKTsKPiA+Cj4gPiArLyoqCj4g PiArICogZXhlY21lbV9kYXRhX2FsbG9jIC0gYWxsb2NhdGUgbWVtb3J5IGZvciBkYXRhIGNvdXBs ZWQgdG8gY29kZQo+ID4gKyAqIEB0eXBlOiB0eXBlIG9mIHRoZSBhbGxvY2F0aW9uCj4gPiArICog QHNpemU6IGhvdyBtYW55IGJ5dGVzIG9mIG1lbW9yeSBhcmUgcmVxdWlyZWQKPiA+ICsgKgo+ID4g KyAqIEFsbG9jYXRlcyBtZW1vcnkgdGhhdCB3aWxsIGNvbnRhaW4gZGF0YSBjb3VwbGVkIHdpdGgg ZXhlY3V0YWJsZSBjb2RlLAo+ID4gKyAqIGxpa2UgZGF0YSBzZWN0aW9ucyBpbiBrZXJuZWwgbW9k dWxlcy4KPiA+ICsgKgo+ID4gKyAqIFRoZSBtZW1vcnkgd2lsbCBoYXZlIHByb3RlY3Rpb25zIGRl ZmluZWQgYnkgYXJjaGl0ZWN0dXJlLgo+ID4gKyAqCj4gPiArICogVGhlIGFsbG9jYXRlZCBtZW1v cnkgd2lsbCByZXNpZGUgaW4gYW4gYXJlYSB0aGF0IGRvZXMgbm90IGltcG9zZQo+ID4gKyAqIHJl c3RyaWN0aW9ucyBvbiB0aGUgYWRkcmVzc2luZyBtb2Rlcy4KPiA+ICsgKgo+ID4gKyAqIFJldHVy bjogYSBwb2ludGVyIHRvIHRoZSBhbGxvY2F0ZWQgbWVtb3J5IG9yICVOVUxMCj4gPiArICovCj4g PiArdm9pZCAqZXhlY21lbV9kYXRhX2FsbG9jKGVudW0gZXhlY21lbV90eXBlIHR5cGUsIHNpemVf dCBzaXplKTsKPiA+ICsKPiA+ICAvKioKPiA+ICAgKiBleGVjbWVtX2ZyZWUgLSBmcmVlIGV4ZWN1 dGFibGUgbWVtb3J5Cj4gPiAgICogQHB0cjogcG9pbnRlciB0byB0aGUgbWVtb3J5IHRoYXQgc2hv dWxkIGJlIGZyZWVkCj4gPiBkaWZmIC0tZ2l0IGEva2VybmVsL21vZHVsZS9tYWluLmMgYi9rZXJu ZWwvbW9kdWxlL21haW4uYwo+ID4gaW5kZXggYzQxNDZiZmNkMGE3Li4yYWU4M2E2YWJmNjYgMTAw NjQ0Cj4gPiAtLS0gYS9rZXJuZWwvbW9kdWxlL21haW4uYwo+ID4gKysrIGIva2VybmVsL21vZHVs ZS9tYWluLmMKPiA+IEBAIC0xMTg4LDI1ICsxMTg4LDE2IEBAIHZvaWQgX193ZWFrIG1vZHVsZV9h cmNoX2ZyZWVpbmdfaW5pdChzdHJ1Y3QgbW9kdWxlICptb2QpCj4gPiAgewo+ID4gIH0KPiA+Cj4g PiAtc3RhdGljIGJvb2wgbW9kX21lbV91c2Vfdm1hbGxvYyhlbnVtIG1vZF9tZW1fdHlwZSB0eXBl KQo+ID4gLXsKPiA+IC0gICAgICAgcmV0dXJuIElTX0VOQUJMRUQoQ09ORklHX0FSQ0hfV0FOVFNf TU9EVUxFU19EQVRBX0lOX1ZNQUxMT0MpICYmCj4gPiAtICAgICAgICAgICAgICAgbW9kX21lbV90 eXBlX2lzX2NvcmVfZGF0YSh0eXBlKTsKPiA+IC19Cj4gPiAtCj4gPiAgc3RhdGljIHZvaWQgKm1v ZHVsZV9tZW1vcnlfYWxsb2ModW5zaWduZWQgaW50IHNpemUsIGVudW0gbW9kX21lbV90eXBlIHR5 cGUpCj4gPiAgewo+ID4gLSAgICAgICBpZiAobW9kX21lbV91c2Vfdm1hbGxvYyh0eXBlKSkKPiA+ IC0gICAgICAgICAgICAgICByZXR1cm4gdnphbGxvYyhzaXplKTsKPiA+ICsgICAgICAgaWYgKG1v ZF9tZW1fdHlwZV9pc19kYXRhKHR5cGUpKQo+ID4gKyAgICAgICAgICAgICAgIHJldHVybiBleGVj bWVtX2RhdGFfYWxsb2MoRVhFQ01FTV9NT0RVTEVfREFUQSwgc2l6ZSk7Cj4gPiAgICAgICAgIHJl dHVybiBleGVjbWVtX3RleHRfYWxsb2MoRVhFQ01FTV9NT0RVTEVfVEVYVCwgc2l6ZSk7Cj4gPiAg fQo+ID4KPiA+ICBzdGF0aWMgdm9pZCBtb2R1bGVfbWVtb3J5X2ZyZWUodm9pZCAqcHRyLCBlbnVt IG1vZF9tZW1fdHlwZSB0eXBlKQo+ID4gIHsKPiA+IC0gICAgICAgaWYgKG1vZF9tZW1fdXNlX3Zt YWxsb2ModHlwZSkpCj4gPiAtICAgICAgICAgICAgICAgdmZyZWUocHRyKTsKPiA+IC0gICAgICAg ZWxzZQo+ID4gLSAgICAgICAgICAgICAgIGV4ZWNtZW1fZnJlZShwdHIpOwo+ID4gKyAgICAgICBl eGVjbWVtX2ZyZWUocHRyKTsKPiA+ICB9Cj4gPgo+ID4gIHN0YXRpYyB2b2lkIGZyZWVfbW9kX21l bShzdHJ1Y3QgbW9kdWxlICptb2QpCj4gPiBkaWZmIC0tZ2l0IGEvbW0vZXhlY21lbS5jIGIvbW0v ZXhlY21lbS5jCj4gPiBpbmRleCBhYmNiZDA3ZTA1YWMuLmFlZmY4NTI2MTM2MCAxMDA2NDQKPiA+ IC0tLSBhL21tL2V4ZWNtZW0uYwo+ID4gKysrIGIvbW0vZXhlY21lbS5jCj4gPiBAQCAtNTMsMTEg KzUzLDIzIEBAIHN0YXRpYyB2b2lkICpleGVjbWVtX2FsbG9jKHNpemVfdCBzaXplLCBzdHJ1Y3Qg ZXhlY21lbV9yYW5nZSAqcmFuZ2UpCj4gPiAgICAgICAgIHJldHVybiBrYXNhbl9yZXNldF90YWco cCk7Cj4gPiAgfQo+ID4KPiA+ICtzdGF0aWMgaW5saW5lIGJvb2wgZXhlY21lbV9yYW5nZV9pc19k YXRhKGVudW0gZXhlY21lbV90eXBlIHR5cGUpCj4gPiArewo+ID4gKyAgICAgICByZXR1cm4gdHlw ZSA9PSBFWEVDTUVNX01PRFVMRV9EQVRBOwo+ID4gK30KPiA+ICsKPiA+ICB2b2lkICpleGVjbWVt X3RleHRfYWxsb2MoZW51bSBleGVjbWVtX3R5cGUgdHlwZSwgc2l6ZV90IHNpemUpCj4gPiAgewo+ ID4gICAgICAgICByZXR1cm4gZXhlY21lbV9hbGxvYyhzaXplLCAmZXhlY21lbV9wYXJhbXMucmFu Z2VzW3R5cGVdKTsKPiA+ICB9Cj4gPgo+ID4gK3ZvaWQgKmV4ZWNtZW1fZGF0YV9hbGxvYyhlbnVt IGV4ZWNtZW1fdHlwZSB0eXBlLCBzaXplX3Qgc2l6ZSkKPiA+ICt7Cj4gPiArICAgICAgIFdBUk5f T05fT05DRSghZXhlY21lbV9yYW5nZV9pc19kYXRhKHR5cGUpKTsKPiA+ICsKPiA+ICsgICAgICAg cmV0dXJuIGV4ZWNtZW1fYWxsb2Moc2l6ZSwgJmV4ZWNtZW1fcGFyYW1zLnJhbmdlc1t0eXBlXSk7 Cj4gPiArfQo+ID4gKwo+ID4gIHZvaWQgZXhlY21lbV9mcmVlKHZvaWQgKnB0cikKPiA+ICB7Cj4g PiAgICAgICAgIC8qCj4gPiBAQCAtOTMsNyArMTA1LDEwIEBAIHN0YXRpYyB2b2lkIGV4ZWNtZW1f aW5pdF9taXNzaW5nKHN0cnVjdCBleGVjbWVtX3BhcmFtcyAqcCkKPiA+ICAgICAgICAgICAgICAg ICBzdHJ1Y3QgZXhlY21lbV9yYW5nZSAqciA9ICZwLT5yYW5nZXNbaV07Cj4gPgo+ID4gICAgICAg ICAgICAgICAgIGlmICghci0+c3RhcnQpIHsKPiA+IC0gICAgICAgICAgICAgICAgICAgICAgIHIt PnBncHJvdCA9IGRlZmF1bHRfcmFuZ2UtPnBncHJvdDsKPiA+ICsgICAgICAgICAgICAgICAgICAg ICAgIGlmIChleGVjbWVtX3JhbmdlX2lzX2RhdGEoaSkpCj4gPiArICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgIHItPnBncHJvdCA9IFBBR0VfS0VSTkVMOwo+ID4gKyAgICAgICAgICAgICAg ICAgICAgICAgZWxzZQo+ID4gKyAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICByLT5wZ3By b3QgPSBkZWZhdWx0X3JhbmdlLT5wZ3Byb3Q7Cj4gPiAgICAgICAgICAgICAgICAgICAgICAgICBy LT5hbGlnbm1lbnQgPSBkZWZhdWx0X3JhbmdlLT5hbGlnbm1lbnQ7Cj4gPiAgICAgICAgICAgICAg ICAgICAgICAgICByLT5zdGFydCA9IGRlZmF1bHRfcmFuZ2UtPnN0YXJ0Owo+ID4gICAgICAgICAg ICAgICAgICAgICAgICAgci0+ZW5kID0gZGVmYXVsdF9yYW5nZS0+ZW5kOwo+ID4gLS0KPiA+IDIu MzkuMgo+ID4KCi0tIApTaW5jZXJlbHkgeW91cnMsCk1pa2UuCgpfX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlz dApsaW51eC1hcm0ta2VybmVsQGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJh ZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==