On 28/02/2019 17:00, Christoph Hellwig wrote: > There is no need to only iterate in chunks of PAGE_SIZE or less in > bvec_iter_advance, given that the callers pass in the chunk length that > they are operating on - either that already is less than PAGE_SIZE this? ^ > because they do classic page-based iteration, or it is larger because > the caller operates on multi-page bvecs. > > This should help optimizing shaving off a few cycles of the I/O hot
optimizing || shaving off, both together sounds awkward. Otherwise Reviewed-by: Johannes Thumshirn <jthumsh...@suse.de> -- Johannes Thumshirn SUSE Labs Filesystems jthumsh...@suse.de +49 911 74053 689 SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg) Key fingerprint = EC38 9CAB C2C4 F25D 8600 D0D0 0393 969D 2D76 0850