函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\super.c Create Date:2022-07-29 10:32:21
Last Modify:2022-05-24 06:42:17 Copyright©Brick
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函数名称：降低活跃性

函数原型：void deactivate_super(struct super_block *s)

返回类型：void

参数：

类型参数名称
struct super_block *s
364  如果非atomic_add_unless - add unless the number is already a given value*@v: pointer of type atomic_t*@a: the amount to add to v...*@u: ...unless v is equal to u.* Atomically adds @a to @v, if @v was not already @u.* Returns true if the addition was done.则
365  lock for writing
366  deactivate_locked_super - drop an active reference to superblock*@s: superblock to deactivate* Drops an active reference to superblock, converting it into a temporary* one if there is no other active references left
调用者
名称描述
cleanup_mnt
put_fs_contextput_fs_context - Dispose of a superblock configuration context.*@fc: The context to dispose of.
freeze_bdevze_bdev -- lock a filesystem and force it into a consistent state*@bdev: blockdevice to lock* If a superblock is found on this device, we take the s_umount semaphore* on it to make sure nobody unmounts until the snapshot creation is done
devpts_release