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

NAME

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

CONTENTS

Synopsis
Description
See Also
Authors

SYNOPSIS


.In sys/param.h
.In vm/vm.h
.In 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


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