From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jamie Lokier Subject: Re: [Qemu-devel] [PATCH] QEMU: fsync AIO writes on flush request Date: Sat, 29 Mar 2008 01:09:30 +0000 Message-ID: <20080329010930.GA30219@shareable.org> References: <20080328150517.GA18077@dmt> <20080328150703.GA19624@shareable.org> <20080328163116.GA18853@dmt> <20080328180324.GA22555@shareable.org> <20080328183628.GB19547@dmt> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: kvm-devel , Paul Brook , qemu-devel@nongnu.org To: Marcelo Tosatti Return-path: Content-Disposition: inline In-Reply-To: <20080328183628.GB19547@dmt> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces@lists.sourceforge.net Errors-To: kvm-devel-bounces@lists.sourceforge.net List-Id: kvm.vger.kernel.org TWFyY2VsbyBUb3NhdHRpIHdyb3RlOgo+IEkgZG9uJ3QgdGhpbmsgdGhlIGZpcnN0IHFlbXVfYWlv X2ZsdXNoKCkgaXMgbmVjZXNzYXJ5IGJlY2F1c2UgdGhlIGZzeW5jCj4gcmVxdWVzdCB3aWxsIGJl IGVucXVldWVkIGFmdGVyIHBlbmRpbmcgb25lczogCj4gCj4gICAgICAgIGFpb19mc3luYygpIGZ1 bmN0aW9uIGRvZXMgYSBzeW5jIG9uIGFsbCBvdXRzdGFuZGluZwo+ICAgICAgICBhc3luY2hyb25v dXMgSS9PIG9wZXJhdGlvbnMgYXNzb2NpYXRlZCB3aXRoCj4gICAgICAgIGFpb2NicC0+YWlvX2Zp bGRlcy4KPgo+ICAgICAgICBNb3JlIHByZWNpc2VseSwgaWYgb3AgaXMgT19TWU5DLCB0aGVuIGFs bCBjdXJyZW50bHkgcXVldWVkCj4gICAgICAgIEkvTyBvcGVyYXRpb25zIHNoYWxsIGJlIGNvbXBs ZXRlZCBhcyBpZiBieSBhIGNhbGwgb2YKPiAgICAgICAgZnN5bmMoMiksIGFuZCBpZiBvcCBpcyBP X0RTWU5DLCB0aGlzIGNhbGwgaXMgdGhlIGFzeW5jaHJvbm91cwo+ICAgICAgICBhbmFsb2cgb2Yg ZmRhdGFzeW5jKDIpLiAgTm90ZSB0aGF0IHRoaXMgaXMgYSByZXF1ZXN0IG9ubHkg4oCUCj4gICAg ICAgIHRoaXMgY2FsbCBkb2VzIG5vdCB3YWl0IGZvciBJL08gY29tcGxldGlvbi4KPiAKPiBnbGli YyBzZXRzIHRoZSBwcmlvcml0eSBmb3IgZnN5bmMgYXMgMCwgd2hpY2ggaXMgdGhlIHNhbWUgcHJp b3JpdHkgQUlPCj4gcmVhZHMgYW5kIHdyaXRlcyBhcmUgc3VibWl0dGVkIGJ5IFFFTVUuCgpEbyBB SU8gb3BlcmF0aW9ucyBhbHdheXMgZ2V0IGV4ZWN1dGVkIGluIHRoZSBvcmRlciB0aGV5IGFyZSBz dWJtaXR0ZWQ/CgpJIHdhcyB1bmRlciB0aGUgaW1wcmVzc2lvbiB0aGlzIGlzIG5vdCBndWFyYW50 ZWVkLCBhcyByZWxheGVkIG9yZGVyaW5nCnBlcm1pdHMgYmV0dGVyIEkvTyBzY2hlZHVsaW5nIChl LmcuIHRvIHJlZHVjZSBkaXNrIHNlZWtzKSAtIHdoaWNoIGlzCm9uZSBvZiB0aGUgbW9zdCB1c2Vm dWwgcG9pbnRzIG9mIEFJTy4gIChPdGhlcndpc2UgeW91IG1pZ2h0IGFzIHdlbGwKanVzdCBoYXZl IG9uZSB3b3JrZXIgdGhyZWFkIGRvaW5nIHN5bmNocm9ub3VzIElPIGluIG9yZGVyKS4KCkFuZCBi ZWNhdXNlIG9mIHRoYXQsIEkgd2FzIHVuZGVyIHRoZSBpbXByZXNzaW9uIHRoZSBvbmx5IHdheSB0 bwppbXBsZW1lbnQgYSB3cml0ZSBiYXJyaWVyK2ZsdXNoIGluIEFJTyB3YXMgKDEpIHdhaXQgZm9y IHBlbmRpbmcgd3JpdGVzCnRvIGNvbXBsZXRlLCB0aGVuICgyKSBhaW9fZnN5bmMsIHRoZW4gKDMp IHdhaXQgZm9yIHRoZSBhaW9fZnN5bmMuCgpJIGNvdWxkIGJlIHdyb25nLCBidXQgSSBoYXZlbid0 IHNlZW4gYW55IGRvY3VtZW50YXRpb24gd2hpY2ggc2F5cwpvdGhlcndpc2UsIGFuZCBpdCdzIHdo YXQgSSdkIGV4cGVjdCBvZiBhbiBpbXBsZW1lbnRhdGlvbi4gIEkuZS4gaXQncwpqdXN0IGFuIGFz eW5jaHJvbm91cyB2ZXJzaW9uIG9mIGZzeW5jKCkuCgpUaGUgcXVvdGVkIG1hbiBwYWdlIGRvZXNu J3QgY29udmluY2UgbWUuICBJdCBzYXlzICJhbGwgY3VycmVudGx5CnF1ZXVlZCBJL08gb3BlcmF0 aW9ucyBzaGFsbCBiZSBjb21wbGV0ZWQiIHdoaWNoIF9jb3VsZF8gbWVhbiB0aGF0CmFpb19mc3lu YyBpcyBhbiBBSU8gYmFycmllciB0b28uCgpCdXQgdGhlbiAiaWYgYnkgYSBjYWxsIG9mIGZzeW5j KDIpIiBpbXBsaWVzIHRoYXQgYWlvX2ZzeW5jK2Fpb19zdXNwZW5kCmNvdWxkIGp1c3QgYmUgcmVw bGFjZWQgYnkgZnN5bmMoKSB3aXRoIG5vIGNoYW5nZSBvZiBzZW1hbnRpY3MuICBTbwoicXVldWVk IEkvTyBvcGVyYXRpb25zIiBtZWFucyB3aGF0IGZzeW5jKCkgaGFuZGxlczogZGlydHkgZmlsZSBk YXRhLApub3QgaW4tZmxpZ2h0IEFJTyB3cml0ZXMuCgpBbmQgeW91IGFscmVhZHkgbm90aWNlZCB0 aGF0IGZzeW5jKCkgaXMgX25vdF8gZ3VhcmFudGVlZCB0byBmbHVzaAppbi1mbGlnaHQgQUlPIHdy aXRlcy4gIEJlaW5nIHRoZSBhc3luY2hyb25vdXMgYW5hbG9nLCBhaW9fZnN5bmMoKQp3b3VsZCBu b3QgZWl0aGVyLgoKLS0gSmFtaWUKCi0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0KQ2hlY2sgb3V0IHRoZSBuZXcg U291cmNlRm9yZ2UubmV0IE1hcmtldHBsYWNlLgpJdCdzIHRoZSBiZXN0IHBsYWNlIHRvIGJ1eSBv ciBzZWxsIHNlcnZpY2VzIGZvcgpqdXN0IGFib3V0IGFueXRoaW5nIE9wZW4gU291cmNlLgpodHRw Oi8vYWQuZG91YmxlY2xpY2submV0L2NsazsxNjQyMTYyMzk7MTM1MDMwMzg7dz9odHRwOi8vc2Yu bmV0L21hcmtldHBsYWNlCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fCmt2bS1kZXZlbCBtYWlsaW5nIGxpc3QKa3ZtLWRldmVsQGxpc3RzLnNvdXJjZWZvcmdl Lm5ldApodHRwczovL2xpc3RzLnNvdXJjZWZvcmdlLm5ldC9saXN0cy9saXN0aW5mby9rdm0tZGV2 ZWwK