IO controller Mini-Summit 2009

2009-10-14 Thread Ryo Tsuruta
Hello, I have summarized the topics for the IO controller mini-summit and written the ideas seen in the mailing list. - The place where IO controller should be implemented - Block layer in conjunction with the IO scheduler - Common layer right above the IO scheduler - CFQ enhancement. -

Re: IO controller Mini-Summit 2009

2009-10-14 Thread Vivek Goyal
On Wed, Oct 14, 2009 at 09:24:44PM +0900, Ryo Tsuruta wrote: Hello, Hi Ryo, CCing people who are planning to attend the mini summit either in person or phone. (As per your list on io mini summit wiki page). Not sure if everybody is scanning mailing list for update on mini summit. I am

Re: Bug on barriers for virtio_blk device - end_request: I/O error, dev vda, sector 0

2009-10-14 Thread Frans Pop
Added CCs for the author of and people CCed on the patch. The patch has been submitted twice (6 Aug, 3 Sept), the first time there was one concern voiced which seems to have been addressed in replies. The second time there were no reactions. The patch seems to work for Massimo... Massimo

Re: [dm-devel] [PATCH resend] block: silently error unsupported empty barriers too

2009-10-14 Thread Alasdair G Kergon
On Thu, Sep 03, 2009 at 04:47:50PM +0100, Mark McLoughlin wrote: We should error all barriers, even empty barriers, on devices like virtio_blk which don't support them. Acked-by: Alasdair G Kergon a...@redhat.com ___ Virtualization mailing list

Re: IO controller Mini-Summit 2009

2009-10-14 Thread Takuya Yoshikawa
Hi all, As Fernando said below, I will be glad if I can help you by taking notes of the mini summit. I would also be glad if someone helps me take notes. Tsuruta-san, thank you for summarizing the topics. It looks good! The only thing I am worrying about is whether we can summarize our