函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\direct-io.c Create Date:2022-07-29 10:46:36
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：drop_refcount

函数原型：static inline int drop_refcount(struct dio *dio)

返回类型：int

参数：

类型参数名称
struct dio *dio
1113  spin_lock_irqsave( & protects BIO fields below , flags)
1114  ret2等于direct_io_worker() and bios 先自减
1115  spin_unlock_irqrestore( & protects BIO fields below , flags)
1116  返回:ret2
调用者
名称描述
do_blockdev_direct_IOThis is a library function for use by filesystem drivers