On Sat, Jul 01, 2023 at 08:21:20AM -0700, Randy Dunlap wrote: > > -* kmap_local_page(). This function is used to require short term mappings. > > - It can be invoked from any context (including interrupts) but the mappings > > - can only be used in the context which acquired them. > > - > > - This function should always be used, whereas kmap_atomic() and kmap() have > > +* kmap_local_page(), kmap_local_folio() - These functions are used to require > > acquire ? "create" might be better? > > + short term mappings. They can be invoked from any context (including > > + interrupts) but the mappings can only be used in the context which acquired > > + them. The only differences between them consist in the first taking a pointer > > + to a struct page and the second taking a pointer to struct folio and the byte > > + offset within the folio which identifies the page. > > -- > ~Randy
