From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: [RFC][PATCH] Make io_submit non-blocking Date: Tue, 24 Jul 2012 18:50:26 -0400 Message-ID: <20120724225026.GA21691@infradead.org> References: <500E89D1.9010303@suse.de> <20120724223110.GQ23387@dastard> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Ankit Jain , Al Viro , bcrl@kvack.org, linux-fsdevel@vger.kernel.org, linux-aio@kvack.org, linux-kernel@vger.kernel.org, Jan Kara To: Dave Chinner Return-path: Content-Disposition: inline In-Reply-To: <20120724223110.GQ23387@dastard> Sender: owner-linux-aio@kvack.org List-Id: linux-fsdevel.vger.kernel.org On Wed, Jul 25, 2012 at 08:31:10AM +1000, Dave Chinner wrote: > FWIW, if you are going to change generic code, you need to present > results for other filesystems as well (xfs, btrfs are typical), as > they may not have the same problems as ext4 or react the same way to > your change. The result might simply be "it is 20% slower".... And most importantly block devices, as they are one of the biggest use cases of AIO. With an almost no-op get_blocks callback I can't see how this change would provide any gain there. -- To unsubscribe, send a message with 'unsubscribe linux-aio' in the body to majordomo@kvack.org. For more info on Linux AIO, see: http://www.kvack.org/aio/ Don't email: aart@kvack.org