VM_PAGE_SLEEP_IF_BUSY(9) BSD Kernel Developer's Manual VM_PAGE_SLEEP_IF_BUSY(9)
NAME
vm_page_sleep_if_busy -- wait for a busy page to become unbusy
SYNOPSIS
#include <sys/param.h>
#include <vm/vm.h>
#include <vm/vm_page.h>
int
vm_page_sleep_if_busy(vm_page_t m, int also_m_busy, const char *wmesg);
DESCRIPTION
The vm_page_sleep_if_busy() function waits until the VPO_BUSY flag is cleared. If also_m_busy is non-zero, it also waits for m->busy to
become zero.
RETURN VALUES
If vm_page_sleep_if_busy() finds the page busy it returns TRUE. If not, it returns FALSE. Returning TRUE does not necessary mean that
vm_page_sleep_if_busy() slept, but only that splvm() was called.
AUTHORS
This manual page was written by Chad David <davidc@acns.ab.ca>.
BSD
July 13, 2001 BSD
