07-08-2002
i think , "free" also can be used here.
raju
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LEARN ABOUT DEBIAN
vm_page_free_toq
VM_PAGE_FREE(9) BSD Kernel Developer's Manual VM_PAGE_FREE(9)
NAME
vm_page_free, vm_page_free_toq, vm_page_free_zero, vm_page_try_to_free -- free a page
SYNOPSIS
#include <sys/param.h>
#include <vm/vm.h>
#include <vm/vm_page.h>
void
vm_page_free(vm_page_t m);
void
vm_page_free_toq(vm_page_t m);
void
vm_page_free_zero(vm_page_t m);
int
vm_page_try_to_free(vm_page_t m);
DESCRIPTION
The vm_page_free_toq() function moves a page into the free queue, and disassociates it from its object. If the page is held, wired, already
free, or its busy count is not zero, the system will panic. If the PG_ZERO flag is set on the page, it is placed at the end of the free
queue; otherwise, it is placed at the front.
If the page's object is of type OBJT_VNODE and it is the last page associated with the object, the underlying vnode may be freed.
The vm_page_free() and vm_page_free_zero() functions both call vm_page_free_toq() to actually free the page, but vm_page_free_zero() sets the
PG_ZERO flag and vm_page_free() clears the PG_ZERO flag prior to the call to vm_page_free_toq().
The vm_page_try_to_free() function verifies that the page is not held, wired, busy or dirty, and if so, marks the page as busy, drops any
protection that may be set on the page, and frees it.
RETURN VALUES
vm_page_try_to_free() returns 1 if it is able to free the page; otherwise, 0 is returned.
SEE ALSO
vm_page_busy(9), vm_page_hold(9), vm_page_wire(9)
AUTHORS
This manual page was written by Chad David <davidc@acns.ab.ca>.
BSD
July 24, 2001 BSD