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vm_page_grab (9)

>> vm_page_grab (9) ( FreeBSD man: Ядро )

BSD mandoc

NAME



vm_page_grab

 - returns a page from an object

SYNOPSIS

   #include <sys/param.h>
   #include <vm/vm.h>
   #include <vm/vm_page.h>
vm_page_t vm_page_grab (vm_object_t object vm_pindex_t pindex int allocflags);

DESCRIPTION

The vm_page_grab ();
function returns the page at Fa pindex from the given object. If the page exists and is busy, vm_page_grab ();
will sleep while waiting for it. If the page does not exist, it is allocated.

If VM_ALLOC_RETRY is not set in Fa allocflags and the function sleeps, either getting the page from the object or while allocating it, NULL is returned.