diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/debugobjects.c | 11 | ||||
| -rw-r--r-- | lib/list_debug.c | 22 | ||||
| -rw-r--r-- | lib/mpi/mpi-bit.c | 5 |
3 files changed, 30 insertions, 8 deletions
diff --git a/lib/debugobjects.c b/lib/debugobjects.c index 0ab9ae8057f0..d11808ca4bc4 100644 --- a/lib/debugobjects.c +++ b/lib/debugobjects.c @@ -79,30 +79,29 @@ static const char *obj_states[ODEBUG_STATE_MAX] = { [ODEBUG_STATE_NOTAVAILABLE] = "not available", }; -static int fill_pool(void) +static void fill_pool(void) { gfp_t gfp = GFP_ATOMIC | __GFP_NORETRY | __GFP_NOWARN; struct debug_obj *new; unsigned long flags; if (likely(obj_pool_free >= ODEBUG_POOL_MIN_LEVEL)) - return obj_pool_free; + return; if (unlikely(!obj_cache)) - return obj_pool_free; + return; while (obj_pool_free < ODEBUG_POOL_MIN_LEVEL) { new = kmem_cache_zalloc(obj_cache, gfp); if (!new) - return obj_pool_free; + return; raw_spin_lock_irqsave(&pool_lock, flags); hlist_add_head(&new->node, &obj_pool); obj_pool_free++; raw_spin_unlock_irqrestore(&pool_lock, flags); } - return obj_pool_free; } /* @@ -1052,10 +1051,10 @@ static int __init debug_objects_replace_static_objects(void) cnt++; } } + local_irq_enable(); printk(KERN_DEBUG "ODEBUG: %d of %d active objects replaced\n", cnt, obj_pool_used); - local_irq_enable(); return 0; free: hlist_for_each_entry_safe(obj, node, tmp, &objects, node) { diff --git a/lib/list_debug.c b/lib/list_debug.c index 982b850d4e7a..3810b481f940 100644 --- a/lib/list_debug.c +++ b/lib/list_debug.c @@ -10,6 +10,7 @@ #include <linux/list.h> #include <linux/bug.h> #include <linux/kernel.h> +#include <linux/rculist.h> /* * Insert a new entry between two known consecutive entries. @@ -75,3 +76,24 @@ void list_del(struct list_head *entry) entry->prev = LIST_POISON2; } EXPORT_SYMBOL(list_del); + +/* + * RCU variants. + */ +void __list_add_rcu(struct list_head *new, + struct list_head *prev, struct list_head *next) +{ + WARN(next->prev != prev, + "list_add_rcu corruption. next->prev should be " + "prev (%p), but was %p. (next=%p).\n", + prev, next->prev, next); + WARN(prev->next != next, + "list_add_rcu corruption. prev->next should be " + "next (%p), but was %p. (prev=%p).\n", + next, prev->next, prev); + new->next = next; + new->prev = prev; + rcu_assign_pointer(list_next_rcu(prev), new); + next->prev = new; +} +EXPORT_SYMBOL(__list_add_rcu); diff --git a/lib/mpi/mpi-bit.c b/lib/mpi/mpi-bit.c index 2f526627e4f5..0c505361da19 100644 --- a/lib/mpi/mpi-bit.c +++ b/lib/mpi/mpi-bit.c @@ -177,8 +177,8 @@ int mpi_rshift(MPI x, MPI a, unsigned n) */ int mpi_lshift_limbs(MPI a, unsigned int count) { - mpi_ptr_t ap = a->d; - int n = a->nlimbs; + const int n = a->nlimbs; + mpi_ptr_t ap; int i; if (!count || !n) @@ -187,6 +187,7 @@ int mpi_lshift_limbs(MPI a, unsigned int count) if (RESIZE_IF_NEEDED(a, n + count) < 0) return -ENOMEM; + ap = a->d; for (i = n - 1; i >= 0; i--) ap[i + count] = ap[i]; for (i = 0; i < count; i++) |