Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\file.c Create Date:2022-07-28 20:08:33
Last Modify:2020-03-12 14:18:49 Copyright©Brick
home page Tree
Annotation kernel can get tool activityDownload SCCTChinese

Name:SYSCALL_DEFINE2

Proto:SYSCALL_DEFINE2(dup2, unsigned int, oldfd, unsigned int, newfd)

Type:

Parameter:Nothing

950  If Value for the false possibility is greater at compile time(newfd == oldfd) Then
951  files = files
952  retval = oldfd
954  _read_lock() - mark the beginning of an RCU read-side critical section* When synchronize_rcu() is invoked on one CPU while other CPUs* are within RCU read-side critical sections, then the* synchronize_rcu() is guaranteed to block until after all the other
955  If Not fcheck_files(files, oldfd) Then retval = -EBADF
957  _read_unlock() - marks the end of an RCU read-side critical section.* In most situations, rcu_read_unlock() is immune from deadlock.* However, in kernels built with CONFIG_RCU_BOOST, rcu_read_unlock()
958  Return retval
960  Return ksys_dup3(oldfd, newfd, 0)