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.

-- 
Goldwyn