函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\io_uring.c Create Date:2022-07-29 10:55:14
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：io_uring_fasync

函数原型：static int io_uring_fasync(int fd, struct file *file, int on)

返回类型：int

参数：

类型参数名称
intfd
struct file *file
inton
4991  ctx等于 needed for tty driver, and maybe others
4993  返回:async_helper() is used by almost all character device drivers* to set up the fasync queue, and for regular files by the file* lease code. It returns negative on error, 0 if it did no changes* and positive if it added/deleted the entry.