관리-도구

편집 파일: hwbm.h

/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _HWBM_H #define _HWBM_H #include <linux/mutex.h> struct hwbm_pool { /* Capacity of the pool */ int size; /* Size of the buffers managed */ int frag_size; /* Number of buffers currently used by this pool */ int buf_num; /* constructor called during alocation */ int (*construct)(struct hwbm_pool *bm_pool, void *buf); /* protect acces to the buffer counter*/ struct mutex buf_lock; /* private data */ void *priv; }; #ifdef CONFIG_HWBM void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf); int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp); int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num); #else static inline void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf) {} static inline int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp) { return 0; } static inline int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num) { return 0; } #endif /* CONFIG_HWBM */ #endif /* _HWBM_H */