Re: [Regression] Please revert a91a2785b20

[Thomas Gleixner <tglx@linutronix.de>]

Forgot to cc Jens and fixed up the borked mail address of Mike which
I took from the changelog :(

On Tue, 29 Mar 2011, Thomas Gleixner wrote:

> Out of the blue all my perfectly fine working test machines which use
> RAID stopped working with the very helpful error message:
> 
> 	md/raid1:md1: active with 2 out of 2 mirrors
> 	md: pers->run() failed ...
> 
> Reverting a91a2785b20 fixes the problem.
> 
> Neither the subject line:
> 
>  block: Require subsystems to explicitly allocate bio_set integrity mempool
> 
> nor the changelog have any hint why that wreckage is in any way
> sensible.
> 
> The wreckage happens due to:
> 
> -       md_integrity_register(mddev);
> -       return 0;
> +       return md_integrity_register(mddev);
> 
> But the changelog does not give the courtesy of explaining these
> changes. Also there is no fcking reason why the kernel cannot deal
> with the missing integrity capabilities of a drive just by emitting a
> warning msg and dealing gracefully with the outcome.
> 
> All my RAID setups have been working perfectly fine until now, so
> what's the rationale to break this?
> 
> Did anyone test this shite on a non enterprise class hardware with a
> distro default config ? Obviously _NOT_.
> 
> FYI, the config files of those machines are based off a fedora default
> config, so this would hit all raid users based on popular distro
> configs sooner than later.
> 
> Thanks for stealing my time,
> 
> 	tglx
>