xnu-201.42.3.tar.gz

[apple/xnu.git] / osfmk / vm / vm_pageout.c

diff --git a/osfmk/vm/vm_pageout.c b/osfmk/vm/vm_pageout.c
index b5c35da6214d06b7f15f6d03dcde9bb925a0ed51..57ecaa12bec12daa08c95694cf68d65551619bd9 100644 (file)
--- a/osfmk/vm/vm_pageout.c
+++ b/osfmk/vm/vm_pageout.c
@@ -1876,13 +1876,14 @@ vm_pageout(void)
 
 static upl_t
 upl_create(
-       boolean_t       internal)
+          boolean_t    internal,
+          vm_size_t       size)
 {
        upl_t   upl;
 
        if(internal) {
                upl = (upl_t)kalloc(sizeof(struct upl)
-                       + (sizeof(struct upl_page_info)*MAX_UPL_TRANSFER));
+                       + (sizeof(struct upl_page_info)*(size/page_size)));
        } else {
                upl = (upl_t)kalloc(sizeof(struct upl));
        }
@@ -1927,7 +1928,7 @@ upl_destroy(
        if(upl->flags & UPL_INTERNAL) {
                kfree((vm_offset_t)upl,
                        sizeof(struct upl) + 
-                       (sizeof(struct upl_page_info) * MAX_UPL_TRANSFER));
+                       (sizeof(struct upl_page_info) * (upl->size/page_size)));
        } else {
                kfree((vm_offset_t)upl, sizeof(struct upl));
        }
@@ -2043,12 +2044,12 @@ vm_object_upl_request(
        }
        if(upl_ptr) {
                if(cntrl_flags & UPL_SET_INTERNAL) {
-                       upl = upl_create(TRUE);
+                       upl = upl_create(TRUE, size);
                        user_page_list = (upl_page_info_t *)
                                (((vm_offset_t)upl) + sizeof(struct upl));
                        upl->flags |= UPL_INTERNAL;
                } else {
-                       upl = upl_create(FALSE);
+                       upl = upl_create(FALSE, size);
                }
                if(object->phys_contiguous) {
                        upl->size = size;