函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\quota\quota_tree.c Create Date:2022-07-29 11:09:40
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：write_blk

函数原型：static ssize_t write_blk(struct qtree_mem_dqinfo *info, uint blk, char *buf)

返回类型：ssize_t

参数：

类型参数名称
struct qtree_mem_dqinfo *info
uintblk
char *buf
70  sb等于Sb quota is on
73  ret等于quota_write(sb, Quota type , buf, Space usable in block for quota data , blk << Block size of quota file )
75  如果ret不等于Space usable in block for quota data 则
76  quota_error(sb, "dquota write failed")
77  如果ret大于等于0则ret等于负EIO
80  返回:ret
调用者
名称描述
get_free_dqblkRemove empty block from list and return it
put_free_dqblkInsert empty block to the list
remove_free_dqentryRemove given block from the list of blocks with free entries
insert_free_dqentryInsert given block to the beginning of list with free entries
find_free_dqentryFind space for dquot
do_insert_treeInsert reference to structure into the trie
free_dqentryFree dquot entry in data block
remove_treeRemove reference to dquot from tree