kdamonds->kdamonds_arr = NULL;
}
-static int damon_sysfs_nr_running_ctxs(struct damon_sysfs_kdamond **kdamonds,
+static bool damon_sysfs_kdamonds_busy(struct damon_sysfs_kdamond **kdamonds,
int nr_kdamonds)
{
- int nr_running_ctxs = 0;
int i;
for (i = 0; i < nr_kdamonds; i++) {
- struct damon_ctx *ctx = kdamonds[i]->damon_ctx;
-
- if (!ctx)
- continue;
- mutex_lock(&ctx->kdamond_lock);
- if (ctx->kdamond)
- nr_running_ctxs++;
- mutex_unlock(&ctx->kdamond_lock);
+ if (damon_sysfs_kdamond_running(kdamonds[i]) ||
+ damon_sysfs_cmd_request.kdamond == kdamonds[i])
+ return true;
}
- return nr_running_ctxs;
+
+ return false;
}
static int damon_sysfs_kdamonds_add_dirs(struct damon_sysfs_kdamonds *kdamonds,
struct damon_sysfs_kdamond **kdamonds_arr, *kdamond;
int err, i;
- if (damon_sysfs_nr_running_ctxs(kdamonds->kdamonds_arr, kdamonds->nr))
+ if (damon_sysfs_kdamonds_busy(kdamonds->kdamonds_arr, kdamonds->nr))
return -EBUSY;
- for (i = 0; i < kdamonds->nr; i++) {
- if (damon_sysfs_cmd_request.kdamond ==
- kdamonds->kdamonds_arr[i])
- return -EBUSY;
- }
-
damon_sysfs_kdamonds_rm_dirs(kdamonds);
if (!nr_kdamonds)
return 0;