On 5/11/21 11:47 PM, Matthew Wilcox (Oracle) wrote: > This is the equivalent of page_cache_get_speculative(). Also add > folio_ref_try_add_rcu (the equivalent of page_cache_add_speculative) > and folio_get_unless_zero() (the equivalent of get_page_unless_zero()). > > The new kernel-doc attempts to explain from the user's point of view > when to use folio_try_get_rcu() and when to use folio_get_unless_zero(), > because there seems to be some confusion currently between the users of > page_cache_get_speculative() and get_page_unless_zero(). > > Reimplement page_cache_add_speculative() and page_cache_get_speculative() > as wrappers around the folio equivalents, but leave get_page_unless_zero() > alone for now. > > Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> Acked-by: Vlastimil Babka <vbabka@xxxxxxx>
