On 12/6/18 12:11 PM, Jeff Moyer wrote: > Jens Axboe <axboe@xxxxxxxxx> writes: > >> From: Christoph Hellwig <hch@xxxxxx> >> >> Just call blk_poll on the iocb cookie, we can derive the block device >> from the inode trivially. > > Does this work for multi-device file systems? It should, that's the whole purpose of having fops->iopoll. You should be able to derive it from inode + cookie. -- Jens Axboe
