On Fri, Mar 19, 2021 at 04:39:41PM +0300, Dmitry Osipenko wrote: > 19.03.2021 15:44, Dmitry Osipenko пишет: > ... > >> #include <linux/debugfs.h> > >> +#include <linux/kobject.h> > >> + > >> +struct cma_stat { > >> + spinlock_t lock; > >> + /* the number of CMA page successful allocations */ > >> + unsigned long nr_pages_succeeded; > >> + /* the number of CMA page allocation failures */ > >> + unsigned long nr_pages_failed; > >> + struct kobject kobj; > >> +}; > >> > >> struct cma { > >> unsigned long base_pfn; > >> @@ -16,6 +26,9 @@ struct cma { > >> struct debugfs_u32_array dfs_bitmap; > >> #endif > >> char name[CMA_MAX_NAME]; > >> +#ifdef CONFIG_CMA_SYSFS > >> + struct cma_stat *stat; > >> +#endif > > What is the point of allocating stat dynamically? Because static kobjects make me cry.