sync_filesystem

函数名称：Write out and wait upon all dirty data associated with this* superblock. Filesystem data as well as the underlying block* device. Takes the superblock lock.

函数原型：int sync_filesystem(struct super_block *sb)

返回类型：int

参数：

类型	参数	名称
struct super_block *	sb

**调用者**
名称	描述
freeze_super	ze_super - lock the filesystem and force it into a consistent state@sb: the super to lock Syncs the super to make sure the filesystem is consistent and calls the fs's* freeze_fs. Subsequent calls to this without first thawing the fs will return* -EBUSY.
SYSCALL_DEFINE1	sync a single super
fsync_bdev	Write out and wait upon all dirty data associated with this* device. Filesystem data as well as the underlying block* device. Takes the superblock lock.
try_to_lock_encrypted_files
dquot_load_quota_sb

函数逻辑报告