static int nilfs_palloc_get_bitmap_block(struct inode *inode,
					 unsigned long group,
					 int create, struct buffer_head **bhp)
{
	return nilfs_mdt_get_block(inode,
				   nilfs_palloc_bitmap_blkoff(inode, group),
				   create, NULL, bhp);
}
示例#2
0
文件: alloc.c 项目: AK101111/linux
/**
 * nilfs_palloc_delete_bitmap_block - delete a bitmap block
 * @inode: inode of metadata file using this allocator
 * @group: group number
 */
static int nilfs_palloc_delete_bitmap_block(struct inode *inode,
					    unsigned long group)
{
	struct nilfs_palloc_cache *cache = NILFS_MDT(inode)->mi_palloc_cache;

	return nilfs_palloc_delete_block(inode,
					 nilfs_palloc_bitmap_blkoff(inode,
								    group),
					 &cache->prev_bitmap, &cache->lock);
}
示例#3
0
文件: alloc.c 项目: AK101111/linux
/**
 * nilfs_palloc_entry_blkoff - get block offset of an entry block
 * @inode: inode of metadata file using this allocator
 * @nr: serial number of the entry (e.g. inode number)
 */
static unsigned long
nilfs_palloc_entry_blkoff(const struct inode *inode, __u64 nr)
{
	unsigned long group, group_offset;

	group = nilfs_palloc_group(inode, nr, &group_offset);

	return nilfs_palloc_bitmap_blkoff(inode, group) + 1 +
		group_offset / NILFS_MDT(inode)->mi_entries_per_block;
}
示例#4
0
文件: alloc.c 项目: AK101111/linux
/**
 * nilfs_palloc_get_bitmap_block - get buffer head of a bitmap block
 * @inode: inode of metadata file using this allocator
 * @group: group number
 * @create: create flag
 * @bhp: pointer to store the resultant buffer head
 */
static int nilfs_palloc_get_bitmap_block(struct inode *inode,
					 unsigned long group,
					 int create, struct buffer_head **bhp)
{
	struct nilfs_palloc_cache *cache = NILFS_MDT(inode)->mi_palloc_cache;

	return nilfs_palloc_get_block(inode,
				      nilfs_palloc_bitmap_blkoff(inode, group),
				      create, NULL, bhp,
				      &cache->prev_bitmap, &cache->lock);
}