函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\fs.h Create Date:2022-07-27 06:44:32
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称:get_write_access() gets write permission for a file.* put_write_access() releases this write permission.* This is used for regular files.* We cannot support write (and maybe mmap read-write shared) accesses and* MAP_DENYWRITE mmappings simultaneously

函数原型:static inline int get_write_access(struct inode *inode)

返回类型:int

参数:

类型参数名称
struct inode *inode
2920  返回:如果atomic_inc_unless_negative( & i_writecount)则0否则负ETXTBSY
调用者
名称描述
vfs_truncate
do_dentry_open
handle_truncate