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

NAME
     vm_page_busy, vm_page_flash, vm_page_wakeup - handle the busying and
     unbusying of a page


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

     void
     vm_page_busy(vm_page_t m);

     void
     vm_page_flash(vm_page_t m);

     void
     vm_page_wakeup(vm_page_t m);


DESCRIPTION
     These functions handle the busying, unbusying and notification of the
     unbusying of a page.

     vm_page_busy() sets the PG_BUSY flag in the page.

     vm_page_flash() checks to see if there is anybody waiting on the page
     (PG_WANTED will be set), and if so, clears the PG_WANTED flag and
     notifies whoever is waiting via wakeup().

     vm_page_wakeup() clears the PG_BUSY flag on the page, and calls
     vm_page_flash() in case somebody has been waiting for it.


SEE ALSO
     vm_page_sleep_busy(9), wakeup(9)


AUTHORS
     This manual page was written by Chad David 〈davidc@acns.ab.ca〉.