On Wed, Nov 21, 2018 at 02:59:08PM +0100, Christoph Hellwig wrote: > bio_readpage_error currently uses bi_vcnt to decide if it is worth > retrying an I/O. But the vector count is mostly an implementation > artifact - it really should figure out if there is more than a > single sector worth retrying. Use bi_size for that and shift by > PAGE_SHIFT. This really should be blocks/sectors, but given that > btrfs doesn't support a sector size different from the PAGE_SIZE > using the page size keeps the changes to a minimum. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> Reviewed-by: David Sterba <dsterba@xxxxxxxx>
