Re: Write barriers on MD RAID1

From: Neil Brown
Date: Tue Jun 23 2009 - 23:43:17 EST

On Sunday June 21, ken.milmore@xxxxxxxxxxxxxx wrote:
> I thought I had better bump my previous post as this regression is still
> present in

Thanks Ken.

> To recap, commit cec0707e40ae25794b5a2de7b7f03c51961f80d9 has broken
> write barriers on md raid1 block devices in 2.6.29 and later kernels.
> Reversing this commit appears to fix the problem.
> Please let me know if I'm harassing the wrong maintainers here!

have you had a chance to look at this?

I think the following patch is appropriate and should go in to