diff options
Diffstat (limited to 'lib/sbitmap.c')
| -rw-r--r-- | lib/sbitmap.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/sbitmap.c b/lib/sbitmap.c index be55f744b771..928b82a733f2 100644 --- a/lib/sbitmap.c +++ b/lib/sbitmap.c @@ -15,6 +15,7 @@ * along with this program. If not, see <https://www.gnu.org/licenses/>. */ +#include <linux/random.h> #include <linux/sbitmap.h> int sbitmap_init_node(struct sbitmap *sb, unsigned int depth, int shift, @@ -211,6 +212,11 @@ int sbitmap_queue_init_node(struct sbitmap_queue *sbq, unsigned int depth, return -ENOMEM; } + if (depth && !round_robin) { + for_each_possible_cpu(i) + *per_cpu_ptr(sbq->alloc_hint, i) = prandom_u32() % depth; + } + sbq->wake_batch = sbq_calc_wake_batch(depth); atomic_set(&sbq->wake_index, 0); |