From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from frost.carfax.org.uk ([85.119.82.111]:38976 "EHLO frost.carfax.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752729Ab3JUP6Q (ORCPT ); Mon, 21 Oct 2013 11:58:16 -0400 Date: Mon, 21 Oct 2013 16:58:13 +0100 From: Hugo Mills To: lilofile Cc: linux-btrfs Subject: Re: BTRFS_INODE_NODATACOW Message-ID: <20131021155813.GF6598@carfax.org.uk> References: <547ffa6f-f5d8-45d1-8412-ec9890928173@aliyun.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="GV0iVqYguTV4Q9ER" In-Reply-To: <547ffa6f-f5d8-45d1-8412-ec9890928173@aliyun.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: --GV0iVqYguTV4Q9ER Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Mon, Oct 21, 2013 at 11:53:42PM +0800, lilofile wrote: > > BTRFS_INODE_NODATACOW > what does this macro means? A file with that attribute set will be modified in place, rather than have extents CoWed when they're modified. This is the implementation of the +C attribute. Hugo. -- === Hugo Mills: hugo@... carfax.org.uk | darksatanic.net | lug.org.uk === PGP key: 65E74AC0 from wwwkeys.eu.pgp.net or http://www.carfax.org.uk --- Normaliser unix c'est comme pasteuriser le Camembert --- --GV0iVqYguTV4Q9ER Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIVAwUBUmVPFVheFHXiqx3kAQLFSQ/7BifWj8bn797BbGdARNKrrEmIuVibnNyB 5SFn7ki3Rvppzg3wTn/PgXP7P3TGL7NFWfyatN5gOZ1dTlSwfaMtd8372k4AqJsZ 4s6qGEvNLVzkxCe6vKnAOjqOGsyG3xvKlBn1IRAhua3fXCc9JolJ835mjxKFKdvm AS+ZSD468raK3u1IUSomrTsreBAl9XHj6wH0K93V/6xnJr2wN4PYW7wsgaSfFjx+ 15q62XyDggzn67YCr20AhQ531hIdVwaeXify6P9gjB+yoLtK3kroYjVCJvAwgGb8 FOaTAm/FSkFv5Ix+aoK3y/B+ap7AB2Us2wbG9Ovpm0//fJ1KOQL9cOcf61+Whjtn g+n0sSR4zYDSBwZWs9/yQ4e3GyRzIj0Q7Au+MUTw3p1g4gHiH0eMLZeadEwuyqVl ZCDyhGB2nB9RCZAg9G+LcILf495aS3zlHMcnTcUPRaa15yje9cbPZ8e/hGlWet4T pYtaT3Sl0Y2FL57JdlEmVHVm1BzwC1jrNLGZJNtW26BFLc5c+qFlwdKkqPsLmQRf utzqmDnHFvyetBDIok2ddAbX8UkbzL2YY65ZMj56TwSmr9uu1PuuKmREBDov4mEx GAhqVmdWQfSpNsoPsgoWcD9MAvFF5jVifZtTaf4djLKnkNGz1uUHsHABSEqhQ5IE uPb/KJM9hzs= =MX6Y -----END PGP SIGNATURE----- --GV0iVqYguTV4Q9ER--