函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:include\linux\xarray.h Create Date:2022-07-27 06:43:47
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：xa_mk_internal() - Create an internal entry.*@v: Value to turn into an internal entry.* Internal entries are used for a number of purposes. Entries 0-255 are* used for sibling entries (only 0-62 are used by the current code). 256

函数原型：static inline void *xa_mk_internal(unsigned long v)

返回类型：void

参数：

类型参数名称
unsigned longv
145  返回:v左移2位按位或2
调用者
名称描述
grab_mapping_entryFind page cache entry at given index. If it is a DAX entry, return it* with the entry locked. If the page cache doesn't contain an entry at* that index, add a locked empty entry.* When requesting an entry with size DAX_PMD, grab_mapping_entry() will
xa_is_errxa_is_err() - Report whether an XArray operation returned an error*@entry: Result from calling an XArray function* If an XArray operation cannot complete an operation, it will return* a special value indicating an error. This function tells you
xa_mk_siblingPrivate