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

NAME

vm_page_grab - "returns a page from an object"

CONTENTS

Synopsis
Description
Return Values
See Also
Authors

SYNOPSIS


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


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