Lock page field accesses in mincore().

Approved by: re (blanket)
2002-11-28 08:01:39 +00:00 · 2002-11-28 08:01:39 +00:00 · adf02aa8e3
commit adf02aa8e3
parent 28d6af6981
1 changed files with 2 additions and 0 deletions
--- a/sys/vm/vm_mmap.c
+++ b/sys/vm/vm_mmap.c
@ -883,6 +883,7 @@ mincore(td, uap)
 				pindex = OFF_TO_IDX(offset);
 				m = vm_page_lookup(current->object.vm_object,
 					pindex);
+				vm_page_lock_queues();
 				/*
 				 * if the page is resident, then gather information about
 				 * it.
@ -898,6 +899,7 @@ mincore(td, uap)
 						mincoreinfo |= MINCORE_REFERENCED_OTHER;
 					}
 				}
+				vm_page_unlock_queues();
 			}

 			/*