Linux Certif

Toute la documentation sur la certification Linux LPI

vm_page_grab.9freebsd

BSD mandoc

NAME

vm_page_grab - returns a page from an object

SYNOPSIS

In sys/param.h In vm/vm.h In vm/vm_page.h Ft vm_page_t Fn vm_page_grab vm_object_t object vm_pindex_t pindex int allocflags

DESCRIPTION

The Fn vm_page_grab function returns the page at Fa pindex from the given object. If the page exists and is busy, Fn 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.

RETURN VALUES

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

SEE ALSO

vm_page_alloc9

AUTHORS

This manual page was written by An Chad David Aq davidc@acns.ab.ca .