See subject.
ok?
diff --git a/uvm/uvm_amap.c b/uvm/uvm_amap.c
index ef8e505..3cc7ed1 100644
--- a/uvm/uvm_amap.c
+++ b/uvm/uvm_amap.c
@@ -403,49 +403,6 @@ amap_extend(struct vm_map_entry *entry, vsize_t addsize)
}
/*
- * amap_share_protect: change protection of anons in a shared amap
- *
- * for shared amaps, given the current data structure layout, it is
- * not possible for us to directly locate all maps referencing the
- * shared anon (to change the protection). in order to protect data
- * in shared maps we use pmap_page_protect(). [this is useful for IPC
- * mechanisms like map entry passing that may want to write-protect
- * all mappings of a shared amap.] we traverse am_anon or am_slots
- * depending on the current state of the amap.
- */
-void
-amap_share_protect(struct vm_map_entry *entry, vm_prot_t prot)
-{
- struct vm_amap *amap = entry->aref.ar_amap;
- int slots, lcv, slot, stop;
-
- AMAP_B2SLOT(slots, (entry->end - entry->start));
- stop = entry->aref.ar_pageoff + slots;
-
- if (slots < amap->am_nused) {
- /* cheaper to traverse am_anon */
- for (lcv = entry->aref.ar_pageoff ; lcv < stop ; lcv++) {
- if (amap->am_anon[lcv] == NULL)
- continue;
- if (amap->am_anon[lcv]->an_page != NULL)
- pmap_page_protect(amap->am_anon[lcv]->an_page,
- prot);
- }
- return;
- }
-
- /* cheaper to traverse am_slots */
- for (lcv = 0 ; lcv < amap->am_nused ; lcv++) {
- slot = amap->am_slots[lcv];
- if (slot < entry->aref.ar_pageoff || slot >= stop)
- continue;
- if (amap->am_anon[slot]->an_page != NULL)
- pmap_page_protect(amap->am_anon[slot]->an_page, prot);
- }
- return;
-}
-
-/*
* amap_wipeout: wipeout all anon's in an amap; then free the amap!
*
* => called from amap_unref when the final reference to an amap is
diff --git a/uvm/uvm_amap.h b/uvm/uvm_amap.h
index e10e735..adcc1da 100644
--- a/uvm/uvm_amap.h
+++ b/uvm/uvm_amap.h
@@ -88,8 +88,6 @@ void amap_lookups(struct vm_aref *, vaddr_t, struct
vm_anon **, int);
void amap_ref(struct vm_amap *, vaddr_t, vsize_t, int);
/* get number of references of amap */
int amap_refs(struct vm_amap *);
- /* protect pages in a shared amap */
-void amap_share_protect(vm_map_entry_t, vm_prot_t);
/* split reference to amap into two */
void amap_splitref(struct vm_aref *, struct vm_aref *, vaddr_t);
/* remove an anon from an amap */
