Re: RFC: iomap write invalidation

Christoph Hellwig
2020-07-21T14:53:20Z

On Mon, Jul 20, 2020 at 04:51:25PM -0500, Goldwyn Rodrigues wrote:
> Hi Christoph,
>
> On 9:46 13/07, Christoph Hellwig wrote:
> > Hi all,
> >
> > this series has two parts: the first one picks up Dave's patch to avoid
> > invalidation entierly for reads, picked up deep down from the btrfs iomap
> > thread. The second one falls back to buffered writes if invalidation fails
> > instead of leaving a stale cache around. Let me know what you think about
> > this approch.
>
> Which kernel version are these changes expected?
> btrfs dio switch to iomap depends on this.

No idea. Darrick, are you ok with picking this up soon so that
Goldwyn can pull it in?