From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jens Axboe Subject: Re: Write cache on SATA drives? Date: Mon, 4 Jul 2005 08:39:32 +0200 Message-ID: <20050704063932.GD1444@suse.de> References: <20050701062416.GQ2243@suse.de> <20050701083308.GZ2243@suse.de> <20050701084717.GA18306@merlin.emma.line.org> <20050701085412.GA2243@suse.de> <20050702070750.GL2243@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from ns.virtualhost.dk ([195.184.98.160]:23741 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S261262AbVGDGh7 (ORCPT ); Mon, 4 Jul 2005 02:37:59 -0400 Content-Disposition: inline In-Reply-To: Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Matthias Andree Cc: "Edwards, Scott (GE Healthcare)" , linux-scsi@vger.kernel.org On Sun, Jul 03 2005, Matthias Andree wrote: > Jens Axboe writes: > > >> Hm. Any buzz^Wkeywords to look for? "barrier" doesn't seem to be the > >> right word, it yields only memory barriers and an as-iosched fix in > >> 2.6.7. I checked ChangeLog-2.6.[56789]. > > > > Grep for blk_queue_ordered or similar in the patch. > > patch-2.6.9 adds this function -- and a call to it to ide-disk.c. Have Ah ok, 2.6.9 it is then. > reiserfs and ext3fs supported this from the very beginning (i. e. 2.6.9) > or is this an issue that affected only the lower layers anyhow? They have. -- Jens Axboe