kernel/drivers/md/raid5.h
.. .. @@ -637,6 +637,7 @@ 637 637 int recovery_disabled; 638 638 /* per cpu variables */ 639 639 struct raid5_percpu { 640 + spinlock_t lock; /* Protection for -RT */640 641 struct page *spare_page; /* Used when checking P/Q in raid6 */ 641 642 struct flex_array *scribble; /* space for constructing buffer 642 643 * lists and performing address