Hi Balbir, > diff -puN mm/memcontrol.c~mem-control-lru-and-reclaim mm/memcontrol.c > --- linux-2.6.23-rc1-mm1/mm/memcontrol.c~mem-control-lru-and-reclaim > 2007-07-28 01:12:50.000000000 +0530 > +++ linux-2.6.23-rc1-mm1-balbir/mm/memcontrol.c 2007-07-28 > 01:12:50.000000000 +0530 > /* > * The memory controller data structure. The memory controller controls both > @@ -51,6 +54,10 @@ struct mem_container { > */ > struct list_head active_list; > struct list_head inactive_list; > + /* > + * spin_lock to protect the per container LRU > + */ > + spinlock_t lru_lock; > };
The spinlock is not annotated by lockdep. The following patch should do it. Signed-off-by: Dhaval Giani <[EMAIL PROTECTED]> Signed-off-by: Gautham Shenoy R <[EMAIL PROTECTED]> Index: linux-2.6.23-rc1/mm/memcontrol.c =================================================================== --- linux-2.6.23-rc1.orig/mm/memcontrol.c 2007-07-30 17:27:24.000000000 +0530 +++ linux-2.6.23-rc1/mm/memcontrol.c 2007-07-30 18:43:40.000000000 +0530 @@ -501,6 +501,9 @@ static struct mem_container init_mem_container; +/* lockdep should know about lru_lock */ +static struct lock_class_key lru_lock_key; + static struct container_subsys_state * mem_container_create(struct container_subsys *ss, struct container *cont) { @@ -519,6 +522,7 @@ INIT_LIST_HEAD(&mem->active_list); INIT_LIST_HEAD(&mem->inactive_list); spin_lock_init(&mem->lru_lock); + lockdep_set_class(&mem->lru_lock, &lru_lock_key); mem->control_type = MEM_CONTAINER_TYPE_ALL; return &mem->css; } -- regards, Dhaval I would like to change the world but they don't give me the source code! - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/