On Mon 04-06-18 16:12:01, Dan Williams wrote: > In support of enabling memory_failure() handling for device-dax > mappings, set ->index to the pgoff of the page. The rmap implementation > requires ->index to bound the search through the vma interval tree. > > The ->index value is never cleared. There is no possibility for the > page to become associated with another pgoff while the device is > enabled. When the device is disabled the 'struct page' array for the > device is destroyed and ->index is reinitialized to zero. > > Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx> Looks good to me. You can add: Reviewed-by: Jan Kara <jack@xxxxxxx> Honza -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR
