函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\file.c Create Date:2022-07-29 10:38:45
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：fd_install

函数原型：void fd_install(unsigned int fd, struct file *file)

返回类型：void

参数：

类型参数名称
unsigned intfd
struct file *file
613  Install a file pointer in the fd array.* The VFS is full of places where we drop the files lock between* setting the open_fds bitmap and installing the file in the file* array. At any such point, we are vulnerable to a dup2() race
调用者
名称描述
do_pipe_flags
do_pipe2sys_pipe() is the normal C calling standard for creating* a pipe. It's not the way Unix traditionally does this, though.
ksys_dup
f_dupfd
SYSCALL_DEFINE3
SYSCALL_DEFINE3Create a kernel mount representation for a new, prepared superblock* (specified by fs_fd) and attach to an open_tree-like file descriptor.
open_related_ns
copy_event_to_user
do_epoll_createOpen an eventpoll file descriptor.
anon_inode_getfdanon_inode_getfd - creates a new file instance by hooking it up to an* anonymous inode, and a dentry that describe the "class"* of the file*@name: [in] name of the "class" of the new file*@fops: [in] file operations for the new file*@priv: [in] private
io_uring_get_fdAllocate an anonymous fd, this is what constitutes the application* visible backing of an io_uring instance. The application mmaps this* fd to gain access to the SQ/CQ ring details. If UNIX sockets are enabled,
load_misc_binaryhe loader itself
do_handle_open
copy_process创建进程