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PMAP_IS_MODIFIED (9) | Kernel routines | Unix Manual Pages | :man

NAME

pmap_is_modified, pmap_ts_modified - return information about physical pages

CONTENTS

Synopsis
Description
Return Values
See Also
Authors

SYNOPSIS


.In sys/param.h
.In vm/vm.h
.In vm/pmap.h boolean_t pmap_is_modified "vm_page_t m" int pmap_ts_referenced "vm_page_t m"

DESCRIPTION

The pmap_is_modified and pmap_ts_referenced functions return information about physical pages.

RETURN VALUES

The pmap_is_modified function returns the status of the ""page modified"" bit for the physical page m.

The pmap_ts_referenced function returns a count of reference bits for a page m, clearing those bits. It is not necessary for every reference bit to be cleared, but it is necessary that 0 only be returned when there are no remaining reference bits set on the page.

SEE ALSO

pmap(9), pmap_clear_modify(9), pmap_clear_reference(9)

AUTHORS


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