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spf=none smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1ieGI7-0000E2-MF; Mon, 09 Dec 2019 10:29:23 +0000 Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1ieGI6-0000Du-Nr for xen-devel@lists.xenproject.org; Mon, 09 Dec 2019 10:29:22 +0000 X-Inumbo-ID: c34e6492-1a6e-11ea-87bb-12813bfff9fa Received: from mx1.suse.de (unknown [195.135.220.15]) by us1-amaz-eas2.inumbo.com (Halon) with ESMTPS id c34e6492-1a6e-11ea-87bb-12813bfff9fa; Mon, 09 Dec 2019 10:29:21 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id DCE12AD18; Mon, 9 Dec 2019 10:29:20 +0000 (UTC) To: SeongJae Park References: <954f7beb-9d40-253e-260b-4750809bf808@suse.com> <20191209102347.17337-1-sjpark@amazon.com> From: =?UTF-8?B?SsO8cmdlbiBHcm/Dnw==?= Message-ID: <7a1dfa22-1108-602f-68ff-ed30a18c1d3d@suse.com> Date: Mon, 9 Dec 2019 11:29:19 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.1 MIME-Version: 1.0 In-Reply-To: <20191209102347.17337-1-sjpark@amazon.com> Content-Language: en-US Subject: Re: [Xen-devel] [PATCH v3 0/1] xen/blkback: Squeeze page pools if a memory pressure X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: linux-block@vger.kernel.org, sj38.park@gmail.com, pdurrant@amazon.com, linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gMDkuMTIuMTkgMTE6MjMsIFNlb25nSmFlIFBhcmsgd3JvdGU6Cj4gT24gICBNb24sIDkgRGVj IDIwMTkgMTA6Mzk6MDIgKzAxMDAgIEp1ZXJnZW4gPGpncm9zc0BzdXNlLmNvbT4gd3JvdGU6Cj4g Cj4+IE9uIDA5LjEyLjE5IDA5OjU4LCBTZW9uZ0phZSBQYXJrIHdyb3RlOgo+Pj4gRWFjaCBgYmxr aWZgIGhhcyBhIGZyZWUgcGFnZXMgcG9vbCBmb3IgdGhlIGdyYW50IG1hcHBpbmcuICBUaGUgc2l6 ZSBvZgo+Pj4gdGhlIHBvb2wgc3RhcnRzIGZyb20gemVybyBhbmQgYmUgaW5jcmVhc2VkIG9uIGRl bWFuZCB3aGlsZSBwcm9jZXNzaW5nCj4+PiB0aGUgSS9PIHJlcXVlc3RzLiAgSWYgY3VycmVudCBJ L08gcmVxdWVzdHMgaGFuZGxpbmcgaXMgZmluaXNoZWQgb3IgMTAwCj4+PiBtaWxsaXNlY29uZHMg aGFzIHBhc3NlZCBzaW5jZSBsYXN0IEkvTyByZXF1ZXN0cyBoYW5kbGluZywgaXQgY2hlY2tzIGFu ZAo+Pj4gc2hyaW5rcyB0aGUgcG9vbCB0byBub3QgZXhjZWVkIHRoZSBzaXplIGxpbWl0LCBgbWF4 X2J1ZmZlcl9wYWdlc2AuCj4+Pgo+Pj4gVGhlcmVmb3JlLCBgYmxrZnJvbnRgIHJ1bm5pbmcgZ3Vl c3RzIGNhbiBjYXVzZSBhIG1lbW9yeSBwcmVzc3VyZSBpbiB0aGUKPj4+IGBibGtiYWNrYCBydW5u aW5nIGd1ZXN0IGJ5IGF0dGFjaGluZyBhIGxhcmdlIG51bWJlciBvZiBibG9jayBkZXZpY2VzIGFu ZAo+Pj4gaW5kdWNpbmcgSS9PLgo+Pgo+PiBJJ20gaGF2aW5nIHByb2JsZW1zIHRvIHVuZGVyc3Rh bmQgaG93IGEgZ3Vlc3QgY2FuIGF0dGFjaCBhIGxhcmdlIG51bWJlcgo+PiBvZiBibG9jayBkZXZp Y2VzIHdpdGhvdXQgdGhvc2UgaGF2aW5nIGJlZW4gY29uZmlndXJlZCBieSB0aGUgaG9zdCBhZG1p bgo+PiBiZWZvcmUuCj4+Cj4+IElmIHRob3NlIGRldmljZXMgaGF2ZSBiZWVuIGNvbmZpZ3VyZWQs IGRvbTAgc2hvdWxkIGJlIHJlYWR5IGZvciB0aGF0Cj4+IG51bWJlciBvZiBkZXZpY2VzLCBlLmcu IGJ5IGhhdmluZyBlbm91Z2ggc3BhcmUgbWVtb3J5IGFyZWEgZm9yIGJhbGxvb25lZAo+PiBwYWdl cy4KPiAKPiBBcyBtZW50aW9uZWQgaW4gdGhlIG9yaWdpbmFsIG1lc3NhZ2UgYXMgYmVsb3csIGFk bWluaXN0cmF0b3JzIF9jYW5fIGF2b2lkIHRoaXMKPiBwcm9ibGVtLCBidXQgZmluZGluZyB0aGUg b3B0aW1hbCBjb25maWd1cmF0aW9uIGlzIGhhcmQsIGVzcGVjaWFsbHkgaWYgdGhlCj4gbnVtYmVy IG9mIHRoZSBndWVzdHMgaXMgbGFyZ2UuCj4gCj4gCVN5c3RlbSBhZG1pbmlzdHJhdG9ycyBjYW4g YXZvaWQgc3VjaCBwcm9ibGVtYXRpYyBzaXR1YXRpb25zIGJ5IGxpbWl0aW5nCj4gCXRoZSBtYXhp bXVtIG51bWJlciBvZiBkZXZpY2VzIGVhY2ggZ3Vlc3QgY2FuIGF0dGFjaC4gIEhvd2V2ZXIsIGZp bmRpbmcKPiAJdGhlIG9wdGltYWwgbGltaXQgaXMgbm90IHNvIGVhc3kuICBJbXByb3BlciBzZXQg b2YgdGhlIGxpbWl0IGNhbgo+IAlyZXN1bHRzIGluIHRoZSBtZW1vcnkgcHJlc3N1cmUgb3IgYSBy ZXNvdXJjZSB1bmRlcnV0aWxpemF0aW9uLgoKVGhpcyBzb3VuZHMgYXMgaWYgdGhlIGFkbWluIHdv dWxkIHNldCBhIGRldmljZSBsaW1pdC4gQnV0IGl0IGlzIHRoZQpvdGhlciB3YXkgcm91bmQ6IFRo ZSBhZG1pbiBuZWVkcyB0byBjb25maWd1cmUgZWFjaCBwb3NzaWJsZSBkZXZpY2UKd2l0aCBhbGwg cGFyYW1ldGVycyAoZS5nLiBiYWNraW5nIGRvbTAgcmVzb3VyY2UpIGZvciBlbmFibGluZyB0aGUK ZnJvbnRlbmQgdG8gdXNlIGl0LgoKCkp1ZXJnZW4KCl9fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxp c3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9s aXN0aW5mby94ZW4tZGV2ZWw=