On Wed 02-10-13 15:32:47, Marciniszyn, Mike wrote: > > > The risk of GUP fast is the loss of the "force" arg on GUP fast, which > > > I don't see as significant give our use case. > > Yes. I was discussing with Roland some time ago whether the force > > argument is needed and he said it is. So I kept the arguments of > > get_user_pages() intact and just simplified the locking... > > The PSM side of the code is a more traditional use of GUP (like direct > I/O), so I think it is a different use case than the locking for IB > memory regions. Ah, I see. Whatever suits you best. I don't really care as long as get_user_pages() locking doesn't leak into IB drivers :) Honza -- Jan Kara <jack@xxxxxxx> SUSE Labs, CR -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>