Received: by 2002:a05:6358:3188:b0:123:57c1:9b43 with SMTP id q8csp27278171rwd; Tue, 4 Jul 2023 00:18:14 -0700 (PDT) X-Google-Smtp-Source: APBJJlHVcBLbxRJ7u2dxA8ECCiWj5o+v+dQgtqkejzq8G+dO6VpO7G2qT0HKmkPqjZhU+1oBQMMq X-Received: by 2002:a17:902:7888:b0:1b7:f654:7bc7 with SMTP id q8-20020a170902788800b001b7f6547bc7mr11065683pll.68.1688455093484; Tue, 04 Jul 2023 00:18:13 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1688455093; cv=none; d=google.com; s=arc-20160816; b=mbGKaL/suiyoqIXAhXBxSZ08701IQhgoLp0RXGwgv02Ta/r/zNYIxayVI4VdGN6BbZ /WUHfMCFaN7OZiIm/QYG2ju/j7BnoB0jZLQytRf1e+tmb3azfYXo4JE9RjNzrVfCl+lH 2IiaxbO0cHhiwBCF7HiK6OndxcG4FPJEXwP6rdSyVGsCacIkhnNtm/PCD6sKMNnoAEIh n9ErfcbdIuhKhUV/JHtmYnNadIa0m4f2Kzd//fmswmzGnqqqxgp+rNK1vY7cyVzEiiXe BDyDSVmKiORLUOzZev94qLdnQ1QpZYFXEFEFQj2CYhzcVwvSfMVyaHww2kK3yCvdzUs/ +ivA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:subject:from:references:cc:to :content-language:user-agent:mime-version:date:message-id :dkim-signature; bh=I2wmCXpl436Dp8ZP2JM7afvCQOhr1hfCC2vxh1ZCMho=; fh=CZ1TwCB6RZM+Nki3HihbRqWZSWShkfQSKiVaaKKHbXE=; b=EEqKjRzqmIhRrEqGNaZm93iy3KI1xtldA4YHrdgVm5iQnys7UE4h+y36WbcU89pIPE ByguMuSg3u9zX6/VThsPsGpKs57o3hunixyMRsMfn4PQG7bOtXl5nvReGorUS/fPpoeJ 9seIEjgfkakjWYbUn/lI/jeyZz9DdkdI3pdEIWDZC457XDbf9edHpJi4y4IOF7bZUCpI GgbX5+0OlZusuPSFuCiaBl9dGk+W58QiasMD+HSA8B82vQc12doARvtpH2hglfDB5NAU JTMm9C4M26XG3K7/hhWk56T8zPYGVYvpm0tg7g4YZQhg1xbAdP63ZdASI0q/bZb2XVzj 0edA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@suse.com header.s=susede1 header.b=bn443Typ; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=suse.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id k15-20020a170902c40f00b001b20e2ba8e1si2066141plk.23.2023.07.04.00.18.01; Tue, 04 Jul 2023 00:18:13 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@suse.com header.s=susede1 header.b=bn443Typ; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=suse.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231142AbjGDHC1 (ORCPT + 99 others); Tue, 4 Jul 2023 03:02:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38474 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230382AbjGDHC0 (ORCPT ); Tue, 4 Jul 2023 03:02:26 -0400 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.220.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A0A4EEE; Tue, 4 Jul 2023 00:02:24 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id 5E92B224C5; Tue, 4 Jul 2023 07:02:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1688454143; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=I2wmCXpl436Dp8ZP2JM7afvCQOhr1hfCC2vxh1ZCMho=; b=bn443TypRb0QJOcKUIKKDBJ9iTJpFltDCrtc+5qGKaxTKetUK7xwPl8YdC5TXKW5atUxYM XF89NTrHY0zxyeqHS0SZElzSum7Qx+ZiM1PDIgHWs5N+H51231BYHgHnCHrTiz7UOp3QSL WY6oBYdrHUb3H3DRJkYT5WX38FvyP94= Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 1C182133F7; Tue, 4 Jul 2023 07:02:23 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id 4NFmBf/Do2TKAQAAMHmgww (envelope-from ); Tue, 04 Jul 2023 07:02:23 +0000 Message-ID: <0a05588e-68d3-1550-4c21-e282f4d66060@suse.com> Date: Tue, 4 Jul 2023 09:02:22 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.12.0 Content-Language: en-US To: Demi Marie Obenour , Stefano Stabellini , Oleksandr Tyshchenko , Jan Beulich , Konrad Rzeszutek Wilk Cc: Xen developer discussion , Linux Kernel Mailing List , stable@vger.kernel.org References: <20230627172216.1359-1-demi@invisiblethingslab.com> From: Juergen Gross Subject: Re: [PATCH v3] xen: speed up grant-table reclaim In-Reply-To: <20230627172216.1359-1-demi@invisiblethingslab.com> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------MNrRNEu0Gn5vUM6zQYoVYHAv" X-Spam-Status: No, score=-4.5 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --------------MNrRNEu0Gn5vUM6zQYoVYHAv Content-Type: multipart/mixed; boundary="------------B37XGpMk5E2SqDCYefhE8oq7"; protected-headers="v1" From: Juergen Gross To: Demi Marie Obenour , Stefano Stabellini , Oleksandr Tyshchenko , Jan Beulich , Konrad Rzeszutek Wilk Cc: Xen developer discussion , Linux Kernel Mailing List , stable@vger.kernel.org Message-ID: <0a05588e-68d3-1550-4c21-e282f4d66060@suse.com> Subject: Re: [PATCH v3] xen: speed up grant-table reclaim References: <20230627172216.1359-1-demi@invisiblethingslab.com> In-Reply-To: <20230627172216.1359-1-demi@invisiblethingslab.com> --------------B37XGpMk5E2SqDCYefhE8oq7 Content-Type: multipart/mixed; boundary="------------xtWTFltP0EaZv0PU6Wx3Xf2W" --------------xtWTFltP0EaZv0PU6Wx3Xf2W Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: base64 T24gMjcuMDYuMjMgMTk6MjIsIERlbWkgTWFyaWUgT2Jlbm91ciB3cm90ZToNCj4gV2hlbiBh IGdyYW50IGVudHJ5IGlzIHN0aWxsIGluIHVzZSBieSB0aGUgcmVtb3RlIGRvbWFpbiwgTGlu dXggbXVzdCBwdXQNCj4gaXQgb24gYSBkZWZlcnJlZCBsaXN0LiAgTm9ybWFsbHksIHRoaXMg bGlzdCBpcyB2ZXJ5IHNob3J0LCBiZWNhdXNlDQo+IHRoZSBQViBuZXR3b3JrIGFuZCBibG9j ayBwcm90b2NvbHMgZXhwZWN0IHRoZSBiYWNrZW5kIHRvIHVubWFwIHRoZSBncmFudA0KPiBm aXJzdC4gIEhvd2V2ZXIsIFF1YmVzIE9TJ3MgR1VJIHByb3RvY29sIGlzIHN1YmplY3QgdG8g dGhlIGNvbnN0cmFpbnRzDQo+IG9mIHRoZSBYIFdpbmRvdyBTeXN0ZW0sIGFuZCBhcyBzdWNo IHdpbmRzIHVwIHdpdGggdGhlIGZyb250ZW5kIHVubWFwcGluZw0KPiB0aGUgd2luZG93IGZp cnN0LiAgQXMgYSByZXN1bHQsIHRoZSBsaXN0IGNhbiBncm93IHZlcnkgbGFyZ2UsIHJlc3Vs dGluZw0KPiBpbiBhIG1hc3NpdmUgbWVtb3J5IGxlYWsgYW5kIGV2ZW50dWFsIFZNIGZyZWV6 ZS4NCj4gDQo+IFRvIHBhcnRpYWxseSBzb2x2ZSB0aGlzIHByb2JsZW0sIG1ha2UgdGhlIG51 bWJlciBvZiBlbnRyaWVzIHRoYXQgdGhlIFZNDQo+IHdpbGwgYXR0ZW1wdCB0byBmcmVlIGF0 IGVhY2ggaXRlcmF0aW9uIHR1bmFibGUuICBUaGUgZGVmYXVsdCBpcyBzdGlsbA0KPiAxMCwg YnV0IGl0IGNhbiBiZSBvdmVycmlkZGVuIGF0IGNvbXBpbGUtdGltZSAodmlhIEtjb25maWcp LCBib290LXRpbWUNCj4gKHZpYSBhIGtlcm5lbCBjb21tYW5kLWxpbmUgb3B0aW9uKSwgb3Ig cnVudGltZSAodmlhIHN5c2ZzKS4NCg0KWW91IGFyZSBzdGlsbCBtZW50aW9uaW5nIEtjb25m aWcuDQoNCkZvciB0aGUgc3lzZnMgZW50cnkgeW91IHNob3VsZCBhZGQgc29tZXRoaW5nIHVu ZGVyIERvY3VtZW50YXRpb24vQUJJLiBTb3JyeQ0KSSBkaWRuJ3Qgc3BvdCB0aGlzIG9taXNz aW9uIHByZXZpb3VzbHkuDQoNCg0KSnVlcmdlbg0K --------------xtWTFltP0EaZv0PU6Wx3Xf2W Content-Type: application/pgp-keys; name="OpenPGP_0xB0DE9DD628BF132F.asc" Content-Disposition: attachment; filename="OpenPGP_0xB0DE9DD628BF132F.asc" Content-Description: OpenPGP public key Content-Transfer-Encoding: quoted-printable -----BEGIN PGP PUBLIC KEY BLOCK----- xsBNBFOMcBYBCACgGjqjoGvbEouQZw/ToiBg9W98AlM2QHV+iNHsEs7kxWhKMjri oyspZKOBycWxw3ie3j9uvg9EOB3aN4xiTv4qbnGiTr3oJhkB1gsb6ToJQZ8uxGq2 kaV2KL9650I1SJvedYm8Of8Zd621lSmoKOwlNClALZNew72NjJLEzTalU1OdT7/i 1TXkH09XSSI8mEQ/ouNcMvIJNwQpd369y9bfIhWUiVXEK7MlRgUG6MvIj6Y3Am/B BLUVbDa4+gmzDC9ezlZkTZG2t14zWPvxXP3FAp2pkW0xqG7/377qptDmrk42GlSK N4z76ELnLxussxc7I2hx18NUcbP8+uty4bMxABEBAAHNHEp1ZXJnZW4gR3Jvc3Mg PGpnQHBmdXBmLm5ldD7CwHkEEwECACMFAlOMcBYCGwMHCwkIBwMCAQYVCAIJCgsE FgIDAQIeAQIXgAAKCRCw3p3WKL8TL0KdB/93FcIZ3GCNwFU0u3EjNbNjmXBKDY4F UGNQH2lvWAUy+dnyThpwdtF/jQ6j9RwE8VP0+NXcYpGJDWlNb9/JmYqLiX2Q3Tye vpB0CA3dbBQp0OW0fgCetToGIQrg0MbD1C/sEOv8Mr4NAfbauXjZlvTj30H2jO0u +6WGM6nHwbh2l5O8ZiHkH32iaSTfN7Eu5RnNVUJbvoPHZ8SlM4KWm8rG+lIkGurq qu5gu8q8ZMKdsdGC4bBxdQKDKHEFExLJK/nRPFmAuGlId1E3fe10v5QL+qHI3EIP tyfE7i9Hz6rVwi7lWKgh7pe0ZvatAudZ+JNIlBKptb64FaiIOAWDCx1SzR9KdWVy Z2VuIEdyb3NzIDxqZ3Jvc3NAc3VzZS5jb20+wsB5BBMBAgAjBQJTjHCvAhsDBwsJ CAcDAgEGFQgCCQoLBBYCAwECHgECF4AACgkQsN6d1ii/Ey/HmQf/RtI7kv5A2PS4 RF7HoZhPVPogNVbC4YA6lW7DrWf0teC0RR3MzXfy6pJ+7KLgkqMlrAbN/8Dvjoz7 8X+5vhH/rDLa9BuZQlhFmvcGtCF8eR0T1v0nC/nuAFVGy+67q2DH8As3KPu0344T BDpAvr2uYM4tSqxK4DURx5INz4ZZ0WNFHcqsfvlGJALDeE0LhITTd9jLzdDad1pQ SToCnLl6SBJZjDOX9QQcyUigZFtCXFst4dlsvddrxyqT1f17+2cFSdu7+ynLmXBK 7abQ3rwJY8SbRO2iRulogc5vr/RLMMlscDAiDkaFQWLoqHHOdfO9rURssHNN8WkM nQfvUewRz80hSnVlcmdlbiBHcm9zcyA8amdyb3NzQG5vdmVsbC5jb20+wsB5BBMB AgAjBQJTjHDXAhsDBwsJCAcDAgEGFQgCCQoLBBYCAwECHgECF4AACgkQsN6d1ii/ Ey8PUQf/ehmgCI9jB9hlgexLvgOtf7PJnFOXgMLdBQgBlVPO3/D9R8LtF9DBAFPN hlrsfIG/SqICoRCqUcJ96Pn3P7UUinFG/I0ECGF4EvTE1jnDkfJZr6jrbjgyoZHi w/4BNwSTL9rWASyLgqlA8u1mf+c2yUwcGhgkRAd1gOwungxcwzwqgljf0N51N5Jf VRHRtyfwq/ge+YEkDGcTU6Y0sPOuj4Dyfm8fJzdfHNQsWq3PnczLVELStJNdapwP OoE+lotufe3AM2vAEYJ9rTz3Cki4JFUsgLkHFqGZarrPGi1eyQcXeluldO3m91NK /1xMI3/+8jbO0tsn1tqSEUGIJi7ox80eSnVlcmdlbiBHcm9zcyA8amdyb3NzQHN1 c2UuZGU+wsB5BBMBAgAjBQJTjHDrAhsDBwsJCAcDAgEGFQgCCQoLBBYCAwECHgEC F4AACgkQsN6d1ii/Ey+LhQf9GL45eU5vOowA2u5N3g3OZUEBmDHVVbqMtzwlmNC4 k9Kx39r5s2vcFl4tXqW7g9/ViXYuiDXb0RfUpZiIUW89siKrkzmQ5dM7wRqzgJpJ wK8Bn2MIxAKArekWpiCKvBOB/Cc+3EXE78XdlxLyOi/NrmSGRIov0karw2RzMNOu 5D+jLRZQd1Sv27AR+IP3I8U4aqnhLpwhK7MEy9oCILlgZ1QZe49kpcumcZKORmzB TNh30FVKK1EvmV2xAKDoaEOgQB4iFQLhJCdP1I5aSgM5IVFdn7v5YgEYuJYx37Io N1EblHI//x/e2AaIHpzK5h88NEawQsaNRpNSrcfbFmAg987ATQRTjHAWAQgAyzH6 AOODMBjgfWE9VeCgsrwH3exNAU32gLq2xvjpWnHIs98ndPUDpnoxWQugJ6MpMncr 0xSwFmHEgnSEjK/PAjppgmyc57BwKII3sV4on+gDVFJR6Y8ZRwgnBC5mVM6JjQ5x Dk8WRXljExRfUX9pNhdE5eBOZJrDRoLUmmjDtKzWaDhIg/+1Hzz93X4fCQkNVbVF LELU9bMaLPBG/x5q4iYZ2k2ex6d47YE1ZFdMm6YBYMOljGkZKwYde5ldM9mo45mm we0icXKLkpEdIXKTZeKDO+Hdv1aqFuAcccTg9RXDQjmwhC3yEmrmcfl0+rPghO0I v3OOImwTEe4co3c1mwARAQABwsBfBBgBAgAJBQJTjHAWAhsMAAoJELDendYovxMv Q/gH/1ha96vm4P/L+bQpJwrZ/dneZcmEwTbe8YFsw2V/Buv6Z4Mysln3nQK5ZadD 534CF7TDVft7fC4tU4PONxF5D+/tvgkPfDAfF77zy2AH1vJzQ1fOU8lYFpZXTXIH b+559UqvIB8AdgR3SAJGHHt4RKA0F7f5ipYBBrC6cyXJyyoprT10EMvU8VGiwXvT yJz3fjoYsdFzpWPlJEBRMedCot60g5dmbdrZ5DWClAr0yau47zpWj3enf1tLWaqc suylWsviuGjKGw7KHQd3bxALOknAp4dN3QwBYCKuZ7AddY9yjynVaD5X7nF9nO5B jR/i1DG86lem3iBDXzXsZDn8R38=3D =3D2wuH -----END PGP PUBLIC KEY BLOCK----- --------------xtWTFltP0EaZv0PU6Wx3Xf2W-- --------------B37XGpMk5E2SqDCYefhE8oq7-- --------------MNrRNEu0Gn5vUM6zQYoVYHAv Content-Type: application/pgp-signature; name="OpenPGP_signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="OpenPGP_signature" -----BEGIN PGP SIGNATURE----- wsB5BAABCAAjFiEEhRJncuj2BJSl0Jf3sN6d1ii/Ey8FAmSjw/4FAwAAAAAACgkQsN6d1ii/Ey86 +Qf7BVc79+MQbLa9SjzT0G9ygKhf8N61XHUt58BIVHzXuBPyl08NthIgPjR1XAkwDhjb9gk1TFTR thYepMpEXviC9KuSUeNiVJ0Z64VobeQ2cCuyQ7r6MHWJSLZLtjXjH3/bXnEwXe03k0pZ3Qt0HM+1 aObCnEc26vVpbkc4tmU3W0OlZDq7w9QkVZG21qm8c+GSx3UYTQkfBE5/4s6gisF1+tDinDY0cif7 Nynh+/Ga+5bkhQ5EPHL3CXNZNtmRvzzA/SEWXAlHKEdH7JpQpwUskbzQqoBCWnk58U1np22t7VWt qKPso3z45GZxSU6UYw8i6hMOjgi0SkEmiIVTXXvI4g== =3vJC -----END PGP SIGNATURE----- --------------MNrRNEu0Gn5vUM6zQYoVYHAv--