21  * nilfs_palloc_groups_per_desc_block - get the number of groups that a group
63 		 * Number of blocks in a group including entry blocks  in nilfs_palloc_init_blockgroup()
77  * nilfs_palloc_group - get group number and offset from an entry number
80  * @offset: pointer to store offset number in the group
85 	__u64 group = nr;  in nilfs_palloc_group()  local
87 	*offset = do_div(group, nilfs_palloc_entries_per_group(inode));  in nilfs_palloc_group()
88 	return group;  in nilfs_palloc_group()
92  * nilfs_palloc_desc_blkoff - get block offset of a group descriptor block
94  * @group: group number
97  * block which contains a descriptor of the specified group.
100 nilfs_palloc_desc_blkoff(const struct inode *inode, unsigned long group)  in nilfs_palloc_desc_blkoff()  argument
103 		group / nilfs_palloc_groups_per_desc_block(inode);  in nilfs_palloc_desc_blkoff()
110  * @group: group number
113  * block used to allocate/deallocate entries in the specified group.
116 nilfs_palloc_bitmap_blkoff(const struct inode *inode, unsigned long group)  in nilfs_palloc_bitmap_blkoff()  argument
119 		group % nilfs_palloc_groups_per_desc_block(inode);  in nilfs_palloc_bitmap_blkoff()
120 	return nilfs_palloc_desc_blkoff(inode, group) + 1 +  in nilfs_palloc_bitmap_blkoff()
125  * nilfs_palloc_group_desc_nfrees - get the number of free entries in a group
126  * @desc: pointer to descriptor structure for the group
143  * @desc: pointer to descriptor structure for the group
168 	unsigned long group, group_offset;  in nilfs_palloc_entry_blkoff()  local
170 	group = nilfs_palloc_group(inode, nr, &group_offset);  in nilfs_palloc_entry_blkoff()
172 	return nilfs_palloc_bitmap_blkoff(inode, group) + 1 +  in nilfs_palloc_entry_blkoff()
177  * nilfs_palloc_desc_block_init - initialize buffer of a group descriptor block
254  * nilfs_palloc_get_desc_block - get buffer head of a group descriptor block
256  * @group: group number
261 				       unsigned long group,  in nilfs_palloc_get_desc_block()  argument
267 				      nilfs_palloc_desc_blkoff(inode, group),  in nilfs_palloc_get_desc_block()
275  * @group: group number
280 					 unsigned long group,  in nilfs_palloc_get_bitmap_block()  argument
286 				      nilfs_palloc_bitmap_blkoff(inode, group),  in nilfs_palloc_get_bitmap_block()
294  * @group: group number
297 					    unsigned long group)  in nilfs_palloc_delete_bitmap_block()  argument
303 								    group),  in nilfs_palloc_delete_bitmap_block()
340  * nilfs_palloc_block_get_group_desc - get kernel address of a group descriptor
342  * @group: group number
343  * @bh: buffer head of the buffer storing the group descriptor block
348 				  unsigned long group,  in nilfs_palloc_block_get_group_desc()  argument
352 		group % nilfs_palloc_groups_per_desc_block(inode);  in nilfs_palloc_block_get_group_desc()
375  * nilfs_palloc_find_available_slot - find available slot in a group
376  * @bitmap: bitmap of the group
377  * @target: offset number of an entry in the group (start point)
418  *					    in a group descriptor block
420  * @curr: current group number
510 	unsigned long group, maxgroup, ngroups;  in nilfs_palloc_prepare_alloc_entry()  local
519 	group = nilfs_palloc_group(inode, req->pr_entry_nr, &group_offset);  in nilfs_palloc_prepare_alloc_entry()
523 		if (group >= ngroups && wrap) {  in nilfs_palloc_prepare_alloc_entry()
525 			group = 0;  in nilfs_palloc_prepare_alloc_entry()
529 		ret = nilfs_palloc_get_desc_block(inode, group, 1, &desc_bh);  in nilfs_palloc_prepare_alloc_entry()
534 			inode, group, desc_bh, desc_kaddr);  in nilfs_palloc_prepare_alloc_entry()
535 		n = nilfs_palloc_rest_groups_in_desc_block(inode, group,  in nilfs_palloc_prepare_alloc_entry()
537 		for (j = 0; j < n; j++, desc++, group++, group_offset = 0) {  in nilfs_palloc_prepare_alloc_entry()
538 			lock = nilfs_mdt_bgl_lock(inode, group);  in nilfs_palloc_prepare_alloc_entry()
543 			ret = nilfs_palloc_get_bitmap_block(inode, group, 1,  in nilfs_palloc_prepare_alloc_entry()
552 				inode, group, desc_bh, desc_kaddr);  in nilfs_palloc_prepare_alloc_entry()
582 	req->pr_entry_nr = entries_per_group * group + pos;  in nilfs_palloc_prepare_alloc_entry()
615 	unsigned long group, group_offset;  in nilfs_palloc_commit_free_entry()  local
620 	group = nilfs_palloc_group(inode, req->pr_entry_nr, &group_offset);  in nilfs_palloc_commit_free_entry()
622 	desc = nilfs_palloc_block_get_group_desc(inode, group,  in nilfs_palloc_commit_free_entry()
626 	lock = nilfs_mdt_bgl_lock(inode, group);  in nilfs_palloc_commit_free_entry()
658 	unsigned long group, group_offset;  in nilfs_palloc_abort_alloc_entry()  local
661 	group = nilfs_palloc_group(inode, req->pr_entry_nr, &group_offset);  in nilfs_palloc_abort_alloc_entry()
663 	desc = nilfs_palloc_block_get_group_desc(inode, group,  in nilfs_palloc_abort_alloc_entry()
667 	lock = nilfs_mdt_bgl_lock(inode, group);  in nilfs_palloc_abort_alloc_entry()
697 	unsigned long group, group_offset;  in nilfs_palloc_prepare_free_entry()  local
700 	group = nilfs_palloc_group(inode, req->pr_entry_nr, &group_offset);  in nilfs_palloc_prepare_free_entry()
701 	ret = nilfs_palloc_get_desc_block(inode, group, 1, &desc_bh);  in nilfs_palloc_prepare_free_entry()
704 	ret = nilfs_palloc_get_bitmap_block(inode, group, 1, &bitmap_bh);  in nilfs_palloc_prepare_free_entry()
743 	unsigned long group, group_offset;  in nilfs_palloc_freev()  local
756 		group = nilfs_palloc_group(inode, entry_nrs[i], &group_offset);  in nilfs_palloc_freev()
757 		ret = nilfs_palloc_get_desc_block(inode, group, 0, &desc_bh);  in nilfs_palloc_freev()
760 		ret = nilfs_palloc_get_bitmap_block(inode, group, 0,  in nilfs_palloc_freev()
767 		/* Get the first entry number of the group */  in nilfs_palloc_freev()
768 		group_min_nr = (__u64)group * epg;  in nilfs_palloc_freev()
772 		lock = nilfs_mdt_bgl_lock(inode, group);  in nilfs_palloc_freev()
832 			inode, group, desc_bh, desc_kaddr);  in nilfs_palloc_freev()
840 			ret = nilfs_palloc_delete_bitmap_block(inode, group);  in nilfs_palloc_freev()
843 					   "error %d deleting bitmap block of group=%lu, ino=%lu",  in nilfs_palloc_freev()
844 					   ret, group, inode->i_ino);  in nilfs_palloc_freev()