VM_PAGE_GRAB(9) MidnightBSD Kernel Developer’s Manual VM_PAGE_GRAB(9)

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 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 allocflags and the function sleeps, either getting the page from the object or while allocating it, NULL is returned.

RETURN VALUES

If successful, vm_page_grab() returns the page; otherwise, NULL is returned.

SEE ALSO

vm_page_alloc(9)

AUTHORS

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

MidnightBSD 0.3 August 7, 2001 MidnightBSD 0.3