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VM_PAGE_SLEEP_IF_BUSY(9) BSD Kernel Developer's ManualVM_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

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