函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\ioctl.c Create Date:2022-07-29 10:36:16
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：map_check_flags - check validity of requested flags for fiemap*@fieinfo: Fiemap context passed into ->fiemap*@fs_flags: Set of fiemap flags that the file system understands* Called from file system ->fiemap callback. This will compute the

函数原型：int fiemap_check_flags(struct fiemap_extent_info *fieinfo, unsigned int fs_flags)

返回类型：int

参数：

类型参数名称
struct fiemap_extent_info *fieinfo
unsigned intfs_flags
147  incompat_flags等于Flags as passed from user 按位与FIEMAP_FLAGS_COMPAT按位与fs_flags的值的反
148  如果incompat_flags则
149  Flags as passed from user 等于incompat_flags
150  返回:负EBADR
152  返回:0
调用者
名称描述
__generic_block_fiemap__generic_block_fiemap - FIEMAP for block based inodes (no locking)*@inode: the inode to map*@fieinfo: the fiemap info struct that will be passed back to userspace*@start: where to start mapping in the inode*@len: how much space to map*@get_block: the
iomap_fiemap