truncate_inode

函数名称：runcate_inode_pages - truncate *all* the pages from an offset*@mapping: mapping to truncate*@lstart: offset from which to truncate* Called under (and serialised by) inode->i_mutex.* Note: When this function returns, there can be a page in the process of

函数原型：void truncate_inode_pages(struct address_space *mapping, loff_t lstart)

返回类型：void

参数：

类型	参数	名称
struct address_space *	mapping	>nrpages can be non-zero when this function returns even after
loff_t	lstart

**调用者**
名称	描述
truncate_inode_pages_final	runcate_inode_pages_final - truncate all pages before inode dies@mapping: mapping to truncate Called under (and serialized by) inode->i_mutex.* Filesystems have to use this in the .evict_inode path to inform the
truncate_pagecache	runcate_pagecache - unmap and remove pagecache that has been truncated@inode: inode@newsize: new file size* inode's new i_size must already be written before truncate_pagecache* is called.* This function should typically be called before the filesystem
dquot_quota_sync	Write all dquot structures to disk and make them visible from userspace
dquot_disable	Turn quota off on a device. type == -1 ==> quotaoff for all types (umount)
kill_bdev	Kill _all_ buffers and pagecache , dirty or not..

函数逻辑报告