C++ (Cpp) cl_inode2ccc Examples

Example #1

File: llite_mmap.c Project: shengwenhui/aufs4-linux

/**
 * Dual to ll_vm_open().
 */
static void ll_vm_close(struct vm_area_struct *vma)
{
	struct inode      *inode = file_inode(vma->vm_file);
	struct ccc_object *vob   = cl_inode2ccc(inode);

	LASSERT(vma->vm_file);
	atomic_dec(&vob->cob_mmap_cnt);
	LASSERT(atomic_read(&vob->cob_mmap_cnt) >= 0);
}

Example #2

File: glimpse.c Project: Cool-Joe/imx23-audio

/*
 * Check whether file has possible unwriten pages.
 *
 * \retval 1    file is mmap-ed or has dirty pages
 *	 0    otherwise
 */
blkcnt_t dirty_cnt(struct inode *inode)
{
	blkcnt_t cnt = 0;
	struct ccc_object *vob = cl_inode2ccc(inode);
	void	      *results[1];

	if (inode->i_mapping != NULL)
		cnt += radix_tree_gang_lookup_tag(&inode->i_mapping->page_tree,
						  results, 0, 1,
						  PAGECACHE_TAG_DIRTY);
	if (cnt == 0 && atomic_read(&vob->cob_mmap_cnt) > 0)
		cnt = 1;

	return (cnt > 0) ? 1 : 0;
}