Changes in kernel/genarch/src/mm/page_ht.c [c868e2d:de73242] in mainline

File:

• kernel/genarch/src/mm/page_ht.c (modified) (2 diffs)

kernel/genarch/src/mm/page_ht.c

@@ -45 +45 @@
 #include <typedefs.h>
 #include <arch/asm.h>
+#include <arch/barrier.h>
 #include <synch/spinlock.h>
 #include <arch.h>
@@ -207 +208 @@
                 pte->page = ALIGN_DOWN(page, PAGE_SIZE);
                 pte->frame = ALIGN_DOWN(frame, FRAME_SIZE);
+
+                /*
+                 * Make sure that a concurrent ht_mapping_find() will see the
+                 * new entry only after it is fully initialized.
+                 */
+                write_barrier();
                 
                 hash_table_insert(&page_ht, key, &pte->link);