函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\quota\dquot.c Create Date:2022-07-29 11:08:34
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：End of list functions needing dq_list_lock

函数原型：static void wait_on_dquot(struct dquot *dquot)

返回类型：void

参数：

类型参数名称
struct dquot *dquot
335  mutex_lock( & dquot IO lock )
336  mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.
调用者
名称描述
dquot_scan_activeCall callback for every active dquot on given filesystem
dqgetGet reference to dquot* Locking is slightly tricky here. We are guarded from parallel quotaoff()* destroying our dquot by:* a) checking for quota flags under dq_list_lock and* b) getting a reference to dquot before we release dq_list_lock