Webfifo-> data = kmalloc_array (esize, size, gfp_mask); if (!fifo-> data) { fifo-> mask = 0; return -ENOMEM; } fifo-> mask = size - 1; return 0; } EXPORT_SYMBOL (__kfifo_alloc); void … Webkfifo.h - include/linux/kfifo.h - Linux source code (v5.19) - Bootlin Elixir Cross Referencer - Explore source code in your browser - Particularly useful for the Linux kernel and other …
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Web3 mrt. 1999 · Atomically add a list of elements to a FIFO. This routine adds a list of data items to fifo in one operation. The data items must be in a singly-linked list, with the first … Web内核通用队列的实现称为 kfifo，头文件为 include/linux/kfifo.h。 创建队列# 创建并初始化一个大小为 size 的 kfifo，使用 gfp_mask 分配内存（成功则返回 0，反之返回一个负数错 … dynamat extreme weight
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Webkfifo_size()用来获取环形缓冲区的大小，也就是最大可以容纳多少个数据元素。kfifo_len()用来获取当前环形缓冲区中有多少个有效数据元素。kfifo_is_empty()判断环形缓冲区是否为空。kfifo_is_full()判断环形缓冲区是否为满。 （5）与用户空间数据交互 Web/* Data are stored into a kfifo buffer before passing them to the userspace */ static struct kfifo rx_fifo; /* NOTE: the usage of kfifo is safe (no need for extra locking), until there is … WebSign in. android / kernel / common / 8395d932d24a9b4c01ab33ed0b4b2de06328afc2 / . / samples / kfifo / dma-example.c. blob: 0cf27483cb3613fc420ec13100195ce55bfa8425 crystals that are safe in salt