On Tue, Dec 04, 2018 at 04:02:36PM +0100, Ard Biesheuvel wrote: > On Tue, 4 Dec 2018 at 16:01, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > > > > Why does this go to linux-block? > > Because xor_blocks() is part of the RAID driver? The only caller of xor_blocks() seems btrfs. And the RAID code has its own list anyway..