函数逻辑报告

函数名称：Note: producer lock is nested within consumer lock, so if you* resize you must make sure all uses nest correctly.* In particular if you consume ring in interrupt or BH context, you must* disable interrupts/BH when doing so.

函数原型：static inline int ptr_ring_resize(struct ptr_ring *r, int size, gfp_t gfp, void (*destroy)(void *))

返回类型：int

参数：