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-rw-r--r--drivers/md/raid5.h9
1 files changed, 7 insertions, 2 deletions
diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
index 52ba99954dec..07a7a4102f05 100644
--- a/drivers/md/raid5.h
+++ b/drivers/md/raid5.h
@@ -383,8 +383,13 @@ struct raid5_private_data {
* (fresh device added).
* Cleared when a sync completes.
*/
-
- struct page *spare_page; /* Used when checking P/Q in raid6 */
+ /* per cpu variables */
+ struct raid5_percpu {
+ struct page *spare_page; /* Used when checking P/Q in raid6 */
+ } *percpu;
+#ifdef CONFIG_HOTPLUG_CPU
+ struct notifier_block cpu_notify;
+#endif
/*
* Free stripes pool