net/core/hwbm.c

13 void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf)
15 	if (likely(bm_pool->frag_size <= PAGE_SIZE))
23 int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp)
25 	int frag_size = bm_pool->frag_size;
36 	if (bm_pool->construct)
37 		if (bm_pool->construct(bm_pool, buf)) {
38 			hwbm_buf_free(bm_pool, buf);
46 int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num)
50 	mutex_lock(&bm_pool->buf_lock);
51 	if (bm_pool->buf_num == bm_pool->size) {
53 		mutex_unlock(&bm_pool->buf_lock);
54 		return bm_pool->buf_num;
57 	if (buf_num + bm_pool->buf_num > bm_pool->size) {
60 		mutex_unlock(&bm_pool->buf_lock);
64 	if ((buf_num + bm_pool->buf_num) < bm_pool->buf_num) {
66 			buf_num,  bm_pool->buf_num);
67 		mutex_unlock(&bm_pool->buf_lock);
72 		err = hwbm_pool_refill(bm_pool, GFP_KERNEL);
78 	bm_pool->buf_num += i;
81 	mutex_unlock(&bm_pool->buf_lock);