On Tue, May 02, 2017 at 01:42:24PM +1000, NeilBrown wrote: > "flags" arguments are often seen as good API design as they allow > easy extensibility. > bioset_create_nobvec() is implemented internally as a variation in > flags passed to __bioset_create(). >From driver's view, this flag has document benifit too. > > To support future extension, make the internal structure part of the > API. > i.e. add a 'flags' argument to bioset_create() and discard > bioset_create_nobvec(). > > Note that the bio_split allocations in drivers/md/raid* do not need > the bvec mempool - they should have used bioset_create_nobvec(). > > Suggested-by: Christoph Hellwig <hch@xxxxxxxxxxxxx> > Signed-off-by: NeilBrown <neilb@xxxxxxxx> Reviewed-by: Ming Lei <ming.lei@xxxxxxxxxx> Thanks, Ming