Provided by: freebsd-manpages_7.0-2_all bug

NAME

     pmap_is_modified, pmap_ts_modified - return information about physical
     pages

SYNOPSIS

     #include <sys/param.h>
     #include <vm/vm.h>
     #include <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

     This manual page was written by Bruce M Simpson 〈bms@spc.org〉.