diff options
Diffstat (limited to 'sys/vm/vm_object.c')
| -rw-r--r-- | sys/vm/vm_object.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/sys/vm/vm_object.c b/sys/vm/vm_object.c index a4aac95..0a3c2ef 100644 --- a/sys/vm/vm_object.c +++ b/sys/vm/vm_object.c @@ -1963,15 +1963,15 @@ skipmemq: } /* - * vm_object_page_cache: + * vm_object_page_noreuse: * - * For the given object, attempt to move the specified clean - * pages to the cache queue. If a page is wired for any reason, - * then it will not be changed. Pages are specified by the given - * range ["start", "end"). As a special case, if "end" is zero, - * then the range extends from "start" to the end of the object. - * Any mappings to the specified pages are removed before the - * pages are moved to the cache queue. + * For the given object, attempt to move the specified pages to + * the head of the inactive queue. This bypasses regular LRU + * operation and allows the pages to be reused quickly under memory + * pressure. If a page is wired for any reason, then it will not + * be queued. Pages are specified by the range ["start", "end"). + * As a special case, if "end" is zero, then the range extends from + * "start" to the end of the object. * * This operation should only be performed on objects that * contain non-fictitious, managed pages. @@ -1979,14 +1979,14 @@ skipmemq: * The object must be locked. */ void -vm_object_page_cache(vm_object_t object, vm_pindex_t start, vm_pindex_t end) +vm_object_page_noreuse(vm_object_t object, vm_pindex_t start, vm_pindex_t end) { struct mtx *mtx, *new_mtx; vm_page_t p, next; VM_OBJECT_ASSERT_WLOCKED(object); KASSERT((object->flags & (OBJ_FICTITIOUS | OBJ_UNMANAGED)) == 0, - ("vm_object_page_cache: illegal object %p", object)); + ("vm_object_page_noreuse: illegal object %p", object)); if (object->resident_page_count == 0) return; p = vm_page_find_least(object, start); @@ -2009,7 +2009,7 @@ vm_object_page_cache(vm_object_t object, vm_pindex_t start, vm_pindex_t end) mtx = new_mtx; mtx_lock(mtx); } - vm_page_try_to_cache(p); + vm_page_deactivate_noreuse(p); } if (mtx != NULL) mtx_unlock(mtx); |
