diff options
| -rw-r--r-- | include/linux/damon.h | 1 | ||||
| -rw-r--r-- | mm/damon/core.c | 10 |
2 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/damon.h b/include/linux/damon.h index aa7381be388c..cae8c613c5fc 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -938,6 +938,7 @@ static inline unsigned int damon_max_nr_accesses(const struct damon_attrs *attrs } +bool damon_initialized(void); int damon_start(struct damon_ctx **ctxs, int nr_ctxs, bool exclusive); int damon_stop(struct damon_ctx **ctxs, int nr_ctxs); bool damon_is_running(struct damon_ctx *ctx); diff --git a/mm/damon/core.c b/mm/damon/core.c index 775121ae7a9b..93848b4c6944 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -2863,6 +2863,16 @@ void damon_update_region_access_rate(struct damon_region *r, bool accessed, r->nr_accesses++; } +/** + * damon_initialized() - Return if DAMON is ready to be used. + * + * Return: true if DAMON is ready to be used, false otherwise. + */ +bool damon_initialized(void) +{ + return damon_region_cache != NULL; +} + static int __init damon_init(void) { damon_region_cache = KMEM_CACHE(damon_region, 0); |