Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\file.c Create Date:2022-07-28 20:08:31
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:__clear_close_on_exec

Proto:static inline void __clear_close_on_exec(unsigned int fd, struct fdtable *fdt)

Type:void

Parameter:

TypeParameterName
unsigned intfd
struct fdtable *fdt
235  If st_bit - Determine whether a bit is set*@nr: bit number to test*@addr: Address to start counting from Then __clear_bit - Clears a bit in memory*@nr: the bit to clear*@addr: the address to start counting from* Unlike clear_bit(), this function is non-atomic. If it is called on the same* region of memory concurrently, the effect may be that only one operation
Caller
NameDescribe
__alloc_fdallocate a file descriptor, mark it busy.
set_close_on_execWe only lock f_pos if we have threads or if the file might be* shared with another process. In both cases we'll have an elevated* file count (done either by fdget() or by fork()).
do_dup2