diff --git a/include/linux/damon.h b/include/linux/damon.h index bb58e36f019e..e1fea3119538 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -934,6 +934,7 @@ static inline unsigned int damon_max_nr_accesses(const struct damon_attrs *attrs 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); int damon_call(struct damon_ctx *ctx, struct damon_call_control *control); int damos_walk(struct damon_ctx *ctx, struct damos_walk_control *control); diff --git a/mm/damon/core.c b/mm/damon/core.c index e8036254cc98..c66583869e95 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -1311,7 +1311,13 @@ int damon_stop(struct damon_ctx **ctxs, int nr_ctxs) return err; } -static bool damon_is_running(struct damon_ctx *ctx) +/** + * damon_is_running() - Returns if a given DAMON context is running. + * @ctx: The DAMON context to see if running. + * + * Return: true if @ctx is running, false otherwise. + */ +bool damon_is_running(struct damon_ctx *ctx) { bool running; diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c index 1b1476b79cdb..79d65dcc9dd0 100644 --- a/mm/damon/sysfs.c +++ b/mm/damon/sysfs.c @@ -1189,16 +1189,6 @@ static void damon_sysfs_kdamond_rm_dirs(struct damon_sysfs_kdamond *kdamond) kobject_put(&kdamond->contexts->kobj); } -static bool damon_sysfs_ctx_running(struct damon_ctx *ctx) -{ - bool running; - - mutex_lock(&ctx->kdamond_lock); - running = ctx->kdamond != NULL; - mutex_unlock(&ctx->kdamond_lock); - return running; -} - /* * enum damon_sysfs_cmd - Commands for a specific kdamond. */ @@ -1275,7 +1265,7 @@ static ssize_t state_show(struct kobject *kobj, struct kobj_attribute *attr, if (!ctx) running = false; else - running = damon_sysfs_ctx_running(ctx); + running = damon_is_running(ctx); return sysfs_emit(buf, "%s\n", running ? damon_sysfs_cmd_strs[DAMON_SYSFS_CMD_ON] : @@ -1429,7 +1419,7 @@ static inline bool damon_sysfs_kdamond_running( struct damon_sysfs_kdamond *kdamond) { return kdamond->damon_ctx && - damon_sysfs_ctx_running(kdamond->damon_ctx); + damon_is_running(kdamond->damon_ctx); } static int damon_sysfs_apply_inputs(struct damon_ctx *ctx,