Merge branch 'drm-tda998x-3.12-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-cubox...

[~andy/linux] / kernel / workqueue.c

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 73bdf3c1f9b72eca5932c42a24a25ffe44c6b649..c66912be990fbda0f61e7a58fdbc52cf304566c2 100644 (file)
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -521,14 +521,21 @@ static inline void debug_work_activate(struct work_struct *work) { }
 static inline void debug_work_deactivate(struct work_struct *work) { }
 #endif
 
-/* allocate ID and assign it to @pool */
+/**
+ * worker_pool_assign_id - allocate ID and assing it to @pool
+ * @pool: the pool pointer of interest
+ *
+ * Returns 0 if ID in [0, WORK_OFFQ_POOL_NONE) is allocated and assigned
+ * successfully, -errno on failure.
+ */
 static int worker_pool_assign_id(struct worker_pool *pool)
 {
        int ret;
 
        lockdep_assert_held(&wq_pool_mutex);
 
-       ret = idr_alloc(&worker_pool_idr, pool, 0, 0, GFP_KERNEL);
+       ret = idr_alloc(&worker_pool_idr, pool, 0, WORK_OFFQ_POOL_NONE,
+                       GFP_KERNEL);
        if (ret >= 0) {
                pool->id = ret;
                return 0;
@@ -5020,10 +5027,6 @@ static int __init init_workqueues(void)
        int std_nice[NR_STD_WORKER_POOLS] = { 0, HIGHPRI_NICE_LEVEL };
        int i, cpu;
 
-       /* make sure we have enough bits for OFFQ pool ID */
-       BUILD_BUG_ON((1LU << (BITS_PER_LONG - WORK_OFFQ_POOL_SHIFT)) <
-                    WORK_CPU_END * NR_STD_WORKER_POOLS);
-
        WARN_ON(__alignof__(struct pool_workqueue) < __alignof__(long long));
 
        pwq_cache = KMEM_CACHE(pool_workqueue, SLAB_PANIC);