From mboxrd@z Thu Jan 1 00:00:00 1970 From: Valdis.Kletnieks@vt.edu Subject: Re: [PATCH v11 00/21] Add support for NV-DIMMs to ext4 Date: Tue, 30 Sep 2014 05:45:01 -0400 Message-ID: <15705.1412070301@turing-police.cc.vt.edu> References: <1411677218-29146-1-git-send-email-matthew.r.wilcox@intel.com> Mime-Version: 1.0 Content-Type: multipart/signed; boundary="==_Exmh_1412070301_2231P"; micalg=pgp-sha1; protocol="application/pgp-signature" Content-Transfer-Encoding: 7bit Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Matthew Wilcox To: Matthew Wilcox Return-path: In-Reply-To: Your message of "Thu, 25 Sep 2014 16:33:17 -0400." <1411677218-29146-1-git-send-email-matthew.r.wilcox@intel.com> Sender: owner-linux-mm@kvack.org List-Id: linux-fsdevel.vger.kernel.org --==_Exmh_1412070301_2231P Content-Type: text/plain; charset=us-ascii On Thu, 25 Sep 2014 16:33:17 -0400, Matthew Wilcox said: > Patch 19 adds some DAX infrastructure to support ext4. > > Patch 20 adds DAX support to ext4. It is broadly similar to ext2's DAX > support, but it is more efficient than ext4's due to its support for > unwritten extents. I don't currently have a use case for NV-DIMM support. However, it would be nice if this code could be leveraged to support 'force O_DIRECT on all I/O to this file' - that I *do* have a use case for. Patch 20 looks to my untrained eye like it *almost* gets there. (And if in fact it *does* do the whole enchilada, the Changelog etc should mention it :) --==_Exmh_1412070301_2231P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Exmh version 2.5 07/13/2001 iQIVAwUBVCp7nQdmEQWDXROgAQLv+Q/+MJrrdItGQo9RwAqKyVmn7uJA2UWWmBJ2 8otETBMl0IQHv+JHbQTUynXMD6AgKpBrAjkW56dTVc5XhnHIwR7ZzYfriYmp6jpe TdNb3iYP1zpKbixfHSCIhmacmJEk9tNYJdSTH1RKagFGM7DRA3LaG5A3PvEr/RGZ NpMgADZDUA3AbDT0CQkBVGJ5Y6osPAVq/fD6S0vyvUsmLAVsrtpYMPsJXXh6NaNw 5qoFjnBNkopPVIDY0vqcqJgNUC0bVRtgkrxhiwDnhzxVdz+qOAri8GbiHkKzAhB+ iXIbxUl+IH+BVAgmrMZPJA3MDr4U1bCj+dfNlfYI+Mgubm1hzSQEf4re9wcVjWiG lyV2NpxhQHkV1P+nw0gVvGd8e5qOWd2WLMdqo4UOGeUSYukhlR4BrkUs8FVt/4Jh a/nWascldQ4Lap270vrHRN8oKp9VRz8WoIqzugOg3Nuhtplg6bol5p6y3HnaCUFI dclwFW3OT0dDWODZFzXdOZQfCDoEbDwP0Zbk6C42XriNgm7cHEv4Mr06aahC81zo /oCZAosXBy61k13hKxRbDR4AHen1oEW/rKNlzhviOCbiIfk2eIrpwgSWtaKRyU5b nAvNr0JrjjmNG+K3AftGxa5wPl+cU1lSYM2gKYiawTH5210CbwfCSQ6j+1q4l2ch EMrC7MqtG0o= =q9v8 -----END PGP SIGNATURE----- --==_Exmh_1412070301_2231P-- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org