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 46453C77B7A for ; Thu, 1 Jun 2023 22:50:23 +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:Cc:To:Subject:Message-ID:Date:From: In-Reply-To:References:MIME-Version:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=K/6fTXUdt3h+cQ8nWXiiGghdGaPZ7HXPKiDPglxRU5E=; b=JyGxV2g8Qg9yzd fwr54cWfg1HWa5Hg2Tyb/O2B7rk8VKLLKcHMv5hTmk/0nnB5Kt0tGh5oJiB+L5rAuHhfcOBSsZXXn aSu0598emjq3fpPftAwxg/C8bfk3yUQwQcUErUH+u4le0RRlRFGU/RJDxBveFwN4rEoVqMvuLr4qC wN6vzeqOspCKm/90QCSc37RmDssZlshnDblwaZjxcgPbjVLIwiZkW+yySdS9sAfl4cwQxul8yV3b/ n5+wPcFD8PDfVDkzsbn+OJ8GmkpePjjnV6IkEMUzU1j4zisQUfxvma55ul16kI1SstFlRriK2tZ7I tmB7zrOCkSMsbNThysGQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q4r7E-005AuA-2A; Thu, 01 Jun 2023 22:49:56 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q4r7C-005AtT-1J; Thu, 01 Jun 2023 22:49:55 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id A327364A50; Thu, 1 Jun 2023 22:49:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 12018C4339B; Thu, 1 Jun 2023 22:49:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1685659793; bh=s5scddDgq8SCu6I0UWPQExKWJjas9UFzehdQi3Sw4tA=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=K25ToaEbCp02bMG+wiJikwHyiXiwwQBkm/MmN8qlrLj5yam240H0kFAxxnFa3RlG8 bu4BSS/frooyZ20B2VklohnrYULCfishpBQ/wfdUaMkt+oR8gS4E1+AjfNshKja3vS Rv+moH0Y5isDfBQyF8Rj722+0entBKGogJrcfr++cvzRmW73HdsIB35hoxtRn829Ae fyn3i/1QAGvtS1oiJarw65vHM76zJn0jBvddq9Vcz7E6Icr7CQW2U08iG1Oryzm6d3 58DCK+DxQNJ2Qn/JWEej+n8GVZwut1/xKU3k6dkfSYsQUQ9uCCopruEXev0WWNFxor G4HpcCwxRlB1w== Received: by mail-lf1-f41.google.com with SMTP id 2adb3069b0e04-4f4f757d575so1925326e87.0; Thu, 01 Jun 2023 15:49:52 -0700 (PDT) X-Gm-Message-State: AC+VfDzwsnq53CWE5Wf7J+mmdf9csUcouyB0J2yrTAj677QhB6Z097d1 8KSwrowkYYt1gB8ZlTV3EIVmhsQKiOk32DipSIg= X-Google-Smtp-Source: ACHHUZ4uA6ym60CkoL3kD4Xme876wGBHsdD1XRoswJZBV/GnrkgRlI3npJzU+tR131QuPJoGC+7UxG4nzuqJElDeBo4= X-Received: by 2002:ac2:4a8b:0:b0:4f3:aa81:2a6e with SMTP id l11-20020ac24a8b000000b004f3aa812a6emr364328lfp.19.1685659791105; Thu, 01 Jun 2023 15:49:51 -0700 (PDT) MIME-Version: 1.0 References: <20230601101257.530867-1-rppt@kernel.org> <20230601101257.530867-13-rppt@kernel.org> In-Reply-To: <20230601101257.530867-13-rppt@kernel.org> From: Song Liu Date: Thu, 1 Jun 2023 15:49:39 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH 12/13] x86/jitalloc: prepare to allocate exectuatble memory as ROX To: Mike Rapoport Cc: linux-kernel@vger.kernel.org, Andrew Morton , Catalin Marinas , Christophe Leroy , "David S. Miller" , Dinh Nguyen , Heiko Carstens , Helge Deller , Huacai Chen , Kent Overstreet , Luis Chamberlain , Michael Ellerman , "Naveen N. Rao" , Palmer Dabbelt , 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230601_154954_523164_077F8F56 X-CRM114-Status: GOOD ( 18.14 ) 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 T24gVGh1LCBKdW4gMSwgMjAyMyBhdCAzOjE14oCvQU0gTWlrZSBSYXBvcG9ydCA8cnBwdEBrZXJu ZWwub3JnPiB3cm90ZToKPgo+IEZyb206IFNvbmcgTGl1IDxzb25nQGtlcm5lbC5vcmc+Cj4KPiBS ZXBsYWNlIGRpcmVjdCBtZW1vcnkgd3JpdGVzIHRvIG1lbW9yeSBhbGxvY2F0ZWQgZm9yIGNvZGUg d2l0aCB0ZXh0IHBva2luZwo+IHRvIGFsbG93IGFsbG9jYXRpb24gb2YgZXhlY3V0YWJsZSBtZW1v cnkgYXMgUk9YLgo+Cj4gVGhlIG9ubHkgZXhjZXB0aW9uIGlzIGFyY2hfcHJlcGFyZV9icGZfdHJh bXBvbGluZSgpIHRoYXQgY2Fubm90IGppdAo+IGRpcmVjdGx5IGludG8gbW9kdWxlIG1lbW9yeSB5 ZXQsIHNvIGl0IHVzZXMgc2V0X21lbW9yeSBjYWxscyB0bwo+IHVucHJvdGVjdCB0aGUgbWVtb3J5 IGJlZm9yZSB3cml0aW5nIHRvIGl0IGFuZCB0byBwcm90ZWN0IG1lbW9yeSBpbiB0aGUKPiBlbmQu Cj4KPiBTaWduZWQtb2ZmLWJ5OiBTb25nIExpdSA8c29uZ0BrZXJuZWwub3JnPgo+IENvLWRldmVs b3BlZC1ieTogTWlrZSBSYXBvcG9ydCAoSUJNKSA8cnBwdEBrZXJuZWwub3JnPgo+IFNpZ25lZC1v ZmYtYnk6IE1pa2UgUmFwb3BvcnQgKElCTSkgPHJwcHRAa2VybmVsLm9yZz4KPiAtLS0KPiAgYXJj aC94ODYva2VybmVsL2FsdGVybmF0aXZlLmMgfCA0MyArKysrKysrKysrKysrKysrKysrKysrKy0t LS0tLS0tLS0tLQo+ICBhcmNoL3g4Ni9rZXJuZWwvZnRyYWNlLmMgICAgICB8IDQxICsrKysrKysr KysrKysrKysrKysrKy0tLS0tLS0tLS0tLQo+ICBhcmNoL3g4Ni9rZXJuZWwvbW9kdWxlLmMgICAg ICB8IDI0ICsrKysrLS0tLS0tLS0tLS0tLS0KPiAgYXJjaC94ODYva2VybmVsL3N0YXRpY19jYWxs LmMgfCAxMCArKysrLS0tLQo+ICBhcmNoL3g4Ni9rZXJuZWwvdW53aW5kX29yYy5jICB8IDEzICsr KysrKystLS0tCj4gIGFyY2gveDg2L25ldC9icGZfaml0X2NvbXAuYyAgIHwgMjIgKysrKysrKysr KysrKy0tLS0tCgpXZSBuZWVkIHRoZSBmb2xsb3dpbmcgaW4gdGhpcyBwYXRjaCAob3IgYmVmb3Jl IHRoaXMgcGF0Y2gpLgpPdGhlcndpc2UsIHRoZSBzeXN0ZW0gd2lsbCBjcmFzaCBhdCB0aGUgVklS VFVBTF9CVUdfT04oKQppbiB2bWFsbG9jX3RvX3BhZ2UoKS4KClRoYW5rcywKU29uZwoKZGlmZiAt LWdpdCBhL2tlcm5lbC9icGYvY29yZS5jIGIva2VybmVsL2JwZi9jb3JlLmMKaW5kZXggYmY5NTRk MjcyMWMxLi40ZWZhOGE3OTVlYmMgMTAwNjQ0Ci0tLSBhL2tlcm5lbC9icGYvY29yZS5jCisrKyBi L2tlcm5lbC9icGYvY29yZS5jCkBAIC0xMDg0LDcgKzEwODQsNyBAQCBicGZfaml0X2JpbmFyeV9w YWNrX2FsbG9jKHVuc2lnbmVkIGludCBwcm9nbGVuLAp1OCAqKmltYWdlX3B0ciwKICAgICAgICAg ICAgICAgIHJldHVybiBOVUxMOwogICAgICAgIH0KCi0gICAgICAgKnJ3X2hlYWRlciA9IGt2bWFs bG9jKHNpemUsIEdGUF9LRVJORUwpOworICAgICAgICpyd19oZWFkZXIgPSBrdnphbGxvYyhzaXpl LCBHRlBfS0VSTkVMKTsKICAgICAgICBpZiAoISpyd19oZWFkZXIpIHsKICAgICAgICAgICAgICAg IGJwZl9hcmNoX3RleHRfY29weSgmcm9faGVhZGVyLT5zaXplLCAmc2l6ZSwgc2l6ZW9mKHNpemUp KTsKICAgICAgICAgICAgICAgIGJwZl9wcm9nX3BhY2tfZnJlZShyb19oZWFkZXIpOwpAQCAtMTA5 Miw4ICsxMDkyLDYgQEAgYnBmX2ppdF9iaW5hcnlfcGFja19hbGxvYyh1bnNpZ25lZCBpbnQgcHJv Z2xlbiwKdTggKippbWFnZV9wdHIsCiAgICAgICAgICAgICAgICByZXR1cm4gTlVMTDsKICAgICAg ICB9CgotICAgICAgIC8qIEZpbGwgc3BhY2Ugd2l0aCBpbGxlZ2FsL2FyY2gtZGVwIGluc3RydWN0 aW9ucy4gKi8KLSAgICAgICBicGZfZmlsbF9pbGxfaW5zbnMoKnJ3X2hlYWRlciwgc2l6ZSk7CiAg ICAgICAgKCpyd19oZWFkZXIpLT5zaXplID0gc2l6ZTsKCiAgICAgICAgaG9sZSA9IG1pbl90KHVu c2lnbmVkIGludCwgc2l6ZSAtIChwcm9nbGVuICsgc2l6ZW9mKCpyb19oZWFkZXIpKSwKCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJu ZWwgbWFpbGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRw Oi8vbGlzdHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK