Changeset 88dea9d in mainline for kernel/generic/src/mm/frame.c

Timestamp:

2010-04-17T16:28:49Z (15 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

30a5470

Parents:

5ba201d (diff), 95319bd (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

merge from measuring branch

File:

• kernel/generic/src/mm/frame.c (modified) (1 diff)

kernel/generic/src/mm/frame.c

@@ -1218 +1218 @@
 }
 
+void zone_busy_and_free(uint64_t *out_busy, uint64_t *out_free)
+{
+        ipl_t ipl = interrupts_disable();
+        spinlock_lock(&zones.lock);
+
+        uint64_t busy = 0, free = 0;
+        size_t i;
+        for (i = 0; i < zones.count; i++) {
+                bool available = zone_flags_available(zones.info[i].flags);
+                /* Do not count reserved memory */
+                if (available) {
+                        busy += (uint64_t) FRAMES2SIZE(zones.info[i].busy_count);
+                        free += (uint64_t) FRAMES2SIZE(zones.info[i].free_count);
+                }
+        }
+
+        spinlock_unlock(&zones.lock);
+        interrupts_restore(ipl);
+        *out_busy = busy;
+        *out_free = free;
+}
+
 /** Prints list of zones. */
 void zone_print_list(void)