diff options
| -rw-r--r-- | include/linux/damon.h | 2 | ||||
| -rw-r--r-- | mm/damon/core.c | 5 |
2 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/damon.h b/include/linux/damon.h index 27c546bfc6d4..60cb8eada3d6 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -630,6 +630,8 @@ struct damon_ctx { unsigned long next_ops_update_sis; /* for waiting until the execution of the kdamond_fn is started */ struct completion kdamond_started; + /* for scheme quotas prioritization */ + unsigned long *regions_score_histogram; /* public: */ struct task_struct *kdamond; diff --git a/mm/damon/core.c b/mm/damon/core.c index 086294279b07..40266d85eebf 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -1957,6 +1957,10 @@ static int kdamond_fn(void *data) ctx->ops.init(ctx); if (ctx->callback.before_start && ctx->callback.before_start(ctx)) goto done; + ctx->regions_score_histogram = kmalloc_array(DAMOS_MAX_SCORE + 1, + sizeof(*ctx->regions_score_histogram), GFP_KERNEL); + if (!ctx->regions_score_histogram) + goto done; sz_limit = damon_region_sz_limit(ctx); @@ -2034,6 +2038,7 @@ done: ctx->callback.before_terminate(ctx); if (ctx->ops.cleanup) ctx->ops.cleanup(ctx); + kfree(ctx->regions_score_histogram); pr_debug("kdamond (%d) finishes\n", current->pid); mutex_lock(&ctx->kdamond_lock); |