atomically clears the specified bits on the pages
atomically sets the specified bits on the pages
call is the same as
and is the recommended way to mark the page as referenced from
third-party kernel modules.
These functions neither block nor require any locks to be held
around the calls for correctness.
The functions arguments are:
The page whose
The bits that are set or cleared on the pages flags.
can be set or cleared:
The bit may be set to indicate that the page has been recently accessed.
sets this bit to reflect the accessed attribute of the page mapping
typically updated by processors memory management unit on the page access.
A writeable mapping for the page may exist.
bits are only valid for the managed pages.