From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tom Marshall Subject: Re: [RFC] Per-file compression Date: Mon, 20 Apr 2015 20:29:10 -0700 Message-ID: <5535c40a.0376460a.6fa2.1d11@mx.google.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: base64 Cc: Tyler Hicks , linux-fsdevel To: Richard Weinberger Return-path: Received: from mail-pa0-f44.google.com ([209.85.220.44]:35010 "EHLO mail-pa0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750998AbbDUD3Q (ORCPT ); Mon, 20 Apr 2015 23:29:16 -0400 Received: by pabtp1 with SMTP id tp1so227314398pab.2 for ; Mon, 20 Apr 2015 20:29:15 -0700 (PDT) Sender: linux-fsdevel-owner@vger.kernel.org List-ID: SSdsbCB0cnkgbXkgaGFuZCBhdCBlY29tcHJlc3NmcyBzaG9ydGx5LCB0aGFua3MhT24gQXByIDIw LCAyMDE1IDk6NTEgQU0sIFJpY2hhcmQgV2VpbmJlcmdlciA8cmljaGFyZEBub2QuYXQ+IHdyb3Rl Ogo+Cj4gQW0gMjAuMDQuMjAxNSB1bSAxNjo1MyBzY2hyaWViIFR5bGVyIEhpY2tzOiAKPiA+IE9u IDIwMTUtMDQtMTggMTc6MDc6MTYsIFJpY2hhcmQgV2VpbmJlcmdlciB3cm90ZTogCj4gPj4gSGkh IAo+ID4+IAo+ID4+IEFtIDE4LjA0LjIwMTUgdW0gMTY6NTggc2NocmllYiBUb20gTWFyc2hhbGw6 IAo+ID4+PiBPbiBTYXQsIEFwciAxOCwgMjAxNSBhdCAwMTo0MTowOVBNICswMjAwLCBSaWNoYXJk IFdlaW5iZXJnZXIgd3JvdGU6IAo+ID4+Pj4gT24gU2F0LCBBcHIgMTgsIDIwMTUgYXQgMTI6MjAg QU0sIFRvbSBNYXJzaGFsbCA8dG9tQGN5bmduLmNvbT4gd3JvdGU6IAo+ID4+Pj4+IFNvLCBJIHdy b3RlIGEgdGhpbmcgY2FsbGVkICd6ZmlsZScgdGhhdCBob29rcyBpbnRvIHRoZSBWRlMgbGF5ZXIg YW5kIAo+ID4+Pj4+IGludGVyY2VwdHMgZmlsZV9vcGVyYXRpb25zIHRvIGRvIGZpbGUgKGRlKWNv bXByZXNzaW9uIG9uIHRoZSBmbHkuIFdoZW4gYSAKPiA+Pj4+PiBmaWxlIGlzIG9wZW5lZCwgaXQg cmVhZHMgYW5kIGRlY29tcHJlc3NlcyB0aGUgZGF0YSBpbnRvIG1lbW9yeS7CoCBUaGUgZmlsZSAK PiA+Pj4+PiBtYXkgYmUgcmVhZCwgd3JpdHRlbiwgYW5kIG1tYXBlZCBpbiB0aGUgdXN1YWwgd2F5 LsKgIElmIHRoZSBjb250ZW50cyBhcmUgCj4gPj4+Pj4gY2hhbmdlZCwgdGhlIGRhdGEgaXMgY29t cHJlc3NlZCBhbmQgd3JpdHRlbiBiYWNrLsKgIEEgd29ya2luZyBwYXRjaCBmb3IgYW4gCj4gPj4+ Pj4gb2xkZXIga2VybmVsIHZlcnNpb24gbWF5IGJlIGZvdW5kIGF0OiAKPiA+Pj4+PiBodHRwOi8v cmV2aWV3LmN5YW5vZ2VubW9kLm9yZy8jL2MvOTUyMjAvIAo+ID4+Pj4gCj4gPj4+PiBTbywgSSd2 ZSBleHRyYWN0ZWQgdGhlIHBhdGNoIGZyb20gdGhhdCB3ZWJzaXRlIGFuZCBnYXZlIGEgcXVpY2sg cmV2aWV3LiAKPiA+Pj4+IAo+ID4+Pj4gSSdtIHByZXR0eSBzdXJlIFZGUyBmb2xrcyB3aWxsIGhh dGUgdGhlIFZGUyBsYXllcmluZyB5b3UgZG8uIAo+ID4+PiAKPiA+Pj4gVGhpcywgSSdtIGFmcmFp ZCwgaXMgdGhlIGJpZ2dlc3Qgb2JzdGFjbGUgdG8gc3VjaCBhIHNvbHV0aW9uLsKgIEkga25vdyB0 aGF0IAo+ID4+PiBPdmVybGF5RlMgaGFzIGJlZW4gbWVyZ2VkLCBzbyBmaWxlc3lzdGVtIHN0YWNr aW5nIGlzIGFjY2VwdGFibGUuwqAgUGVyaGFwcyAKPiA+Pj4gdGhlcmUgd291bGQgYmUgYSB3YXkg dG8gZGVzaWduIGEgZmlsZXN5c3RlbSB0aGF0IHN0YWNrcyBjb21wcmVzc2lvbj8gCj4gPj4gCj4g Pj4gVGhhdCdzIHdoeSBJIHNhaWQgdGhpbmsgb2YgYWRkaW5nIGNvbXByZXNzaW9uIHN1cHBvcnQg dG8gZWNyeXB0ZnMuIAo+ID4gCj4gPiBJIHRoaW5rIGFkZGluZyBjb21wcmVzc2lvbiBzdXBwb3J0 IHRvIGVDcnlwdGZzIGlzIHRoZSB3cm9uZyBhcHByb2FjaC4gCj4gPiBUaGUgIlggaXMgYWxyZWFk eSBhIHN0YWNrZWQgZmlsZXN5c3RlbSBzbyBsb29rIGludG8gYWRkaW5nIGNvbXByZXNzaW9uIAo+ ID4gc3VwcG9ydCB0byBpdCIgbG9naWMgYWxzbyB3b3JrcyB3aGVuIFg9b3ZlcmxheWZzLiBJIGRv dWJ0IHRoYXQgTWlrbG9zIAo+ID4gd291bGQgYmUgd2lsbGluZyB0byBhY2NlcHQgc3VjaCBhIGZl YXR1cmUuIDopIAo+Cj4gTXkgdGhvdWdodCB3YXMgdGhhdCBjb21wcmVzc2lvbiBpcyBub3QgZmFy IGF3YXkgZnJvbSBjcnlwdG8gYW4gaGVuY2UgCj4gYSBsb3Qgb2YgZWNyeXB0ZnMgY291bGQgYmUg cmV1c2VkLiAKPgo+ID4gQSBzdGFja2VkIGZpbGVzeXN0ZW0gdGhhdCBpbXBsZW1lbnRzIGNvbXBy ZXNzaW9uIHNob3VsZCBiZSBmYWlybHkgCj4gPiBzaW1wbGUuIElmIGl0IGlzIG5vdCBzaW1wbGUs IGl0IGlzIHRvbyBjb21wbGljYXRlZCB0byB0cnkgdG8gd2VkZ2UgaW50byAKPiA+IGFuIHVucmVs YXRlZCBzdGFja2VkIGZpbGVzeXN0ZW0uIAo+ID4gCj4gPiBXaGlsZSBpdCBtYXkgYmUgdGhlIHF1 aWNrZXN0IHJvdXRlIHRvIHlvdXIgZW5kIGdvYWwsIGl0IHdpbGwgb3Zlcmx5IAo+ID4gY29tcGxp Y2F0ZSBlQ3J5cHRmcy4gZUNyeXB0ZnMgYWxyZWFkeSBoYXMgcGxlbnR5IG9mIGNvbXBsZXhpdHkg YXJvdW5kIAo+ID4gdGhlIGZpbGUgb2Zmc2V0IHNpbmNlIG1ldGFkYXRhIG1heSBiZSBzdG9yZWQg aW4gdGhlIGZpcnN0IDgxOTIgYnl0ZXMgb2YgCj4gPiB0aGUgbG93ZXIgZmlsZSwgd2hpY2ggb2Zm c2V0cyB0aGUgZW50aXJlIGZpbGUsIGFuZCB0aGUgZW5kIG9mIHRoZSBmaWxlIAo+ID4gaGFzIHRv IGJlIHBhZGRlZC4gTWl4aW5nIGluIGNvbXByZXNzaW9uIHdvdWxkIG1ha2UgdGhpbmdzIG11Y2gg d29yc2UuIAo+Cj4gSSBhc3N1bWVkIHRoYXQgeW91IG5lZWQgYWxzbyBzb21lIG1ldGEgZGF0YSBm b3IgY29tcHJlc3Npb24uIAo+IEF0IGxlYXN0IGlmIHlvdSBkbyBpdCBpbiBhIG5vbi10cml2aWFs IHdheS4gCj4KPiA+IEFsc28sIGVDcnlwdGZzIGhhcyBsb3RzIG9mIGNydWZ0IHRoYXQgaXMgZGVm aW5pdGVseSBub3QgbmVlZGVkIGZvciAKPiA+IGNvbXByZXNzaW9uLiAKPgo+IEFzIHlvdSdyZSB0 aGUgbWFpbnRhaW5lciBvZiBlY3J5cHRmcyB5b3Uga25vdyBvYnZpb3VzbHkgYmV0dGVyIHRoYW4g SSBkby4gOikgCj4gVG9tLCB0byBtYWtlIHRoZSBzdG9yeSBzaG9ydCwgeW91J2xsIGhhdmUgdG8g ZXhwZXJpbWVudCBhIGJpdC4gCj4KPiBUaGFua3MsIAo+IC8vcmljaGFyZCAK