On 04/27/2012 06:57 AM, Bartlomiej Zolnierkiewicz wrote:
+/*
+ * compaction supports three modes
+ *
+ * COMPACT_ASYNC_MOVABLE uses asynchronous migration and only scans
+ * MIGRATE_MOVABLE pageblocks as migration sources and targets.
+ * COMPACT_ASYNC_UNMOVABLE uses asynchronous migration and only scans
+ * MIGRATE_MOVABLE pageblocks as migration sources.
+ * MIGRATE_UNMOVABLE pageblocks are scanned as potential migration
+ * targets and convers them to MIGRATE_MOVABLE if possible
^^^^^^^^^^^^ converted to?
+ * COMPACT_SYNC uses synchronous migration and scans all pageblocks
+ */
The rest of the patch looks good to me.
Reviewed-by: Rik van Riel <riel@xxxxxxxxxx>
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