28 static int finish_range(handle_t *handle, struct inode *inode,  in finish_range()  argument
43 	down_write(&EXT4_I(inode)->i_data_sem);  in finish_range()
44 	path = ext4_find_extent(inode, lb->first_block, NULL, 0);  in finish_range()
57 	needed = ext4_ext_calc_credits_for_single_extent(inode,  in finish_range()
65 		up_write((&EXT4_I(inode)->i_data_sem));  in finish_range()
67 		down_write((&EXT4_I(inode)->i_data_sem));  in finish_range()
76 			up_write((&EXT4_I(inode)->i_data_sem));  in finish_range()
78 			down_write((&EXT4_I(inode)->i_data_sem));  in finish_range()
83 	retval = ext4_ext_insert_extent(handle, inode, &path, &newext, 0);  in finish_range()
85 	up_write((&EXT4_I(inode)->i_data_sem));  in finish_range()
92 static int update_extent_range(handle_t *handle, struct inode *inode,  in update_extent_range()  argument
110 	retval = finish_range(handle, inode, lb);  in update_extent_range()
117 static int update_ind_extent_range(handle_t *handle, struct inode *inode,  in update_ind_extent_range()  argument
124 	unsigned long max_entries = inode->i_sb->s_blocksize >> 2;  in update_ind_extent_range()
126 	bh = sb_bread(inode->i_sb, pblock);  in update_ind_extent_range()
133 			retval = update_extent_range(handle, inode,  in update_ind_extent_range()
146 static int update_dind_extent_range(handle_t *handle, struct inode *inode,  in update_dind_extent_range()  argument
153 	unsigned long max_entries = inode->i_sb->s_blocksize >> 2;  in update_dind_extent_range()
155 	bh = sb_bread(inode->i_sb, pblock);  in update_dind_extent_range()
162 			retval = update_ind_extent_range(handle, inode,  in update_dind_extent_range()
176 static int update_tind_extent_range(handle_t *handle, struct inode *inode,  in update_tind_extent_range()  argument
183 	unsigned long max_entries = inode->i_sb->s_blocksize >> 2;  in update_tind_extent_range()
185 	bh = sb_bread(inode->i_sb, pblock);  in update_tind_extent_range()
192 			retval = update_dind_extent_range(handle, inode,  in update_tind_extent_range()
206 static int extend_credit_for_blkdel(handle_t *handle, struct inode *inode)  in extend_credit_for_blkdel()  argument
218 	needed = 3 + EXT4_MAXQUOTAS_TRANS_BLOCKS(inode->i_sb);  in extend_credit_for_blkdel()
227 				struct inode *inode, __le32 i_data)  in free_dind_blocks()  argument
232 	unsigned long max_entries = inode->i_sb->s_blocksize >> 2;  in free_dind_blocks()
234 	bh = sb_bread(inode->i_sb, le32_to_cpu(i_data));  in free_dind_blocks()
241 			extend_credit_for_blkdel(handle, inode);  in free_dind_blocks()
242 			ext4_free_blocks(handle, inode, NULL,  in free_dind_blocks()
249 	extend_credit_for_blkdel(handle, inode);  in free_dind_blocks()
250 	ext4_free_blocks(handle, inode, NULL, le32_to_cpu(i_data), 1,  in free_dind_blocks()
257 				struct inode *inode, __le32 i_data)  in free_tind_blocks()  argument
262 	unsigned long max_entries = inode->i_sb->s_blocksize >> 2;  in free_tind_blocks()
264 	bh = sb_bread(inode->i_sb, le32_to_cpu(i_data));  in free_tind_blocks()
272 					inode, tmp_idata[i]);  in free_tind_blocks()
280 	extend_credit_for_blkdel(handle, inode);  in free_tind_blocks()
281 	ext4_free_blocks(handle, inode, NULL, le32_to_cpu(i_data), 1,  in free_tind_blocks()
287 static int free_ind_block(handle_t *handle, struct inode *inode, __le32 *i_data)  in free_ind_block()  argument
293 		extend_credit_for_blkdel(handle, inode);  in free_ind_block()
294 		ext4_free_blocks(handle, inode, NULL,  in free_ind_block()
302 		retval = free_dind_blocks(handle, inode, i_data[1]);  in free_ind_block()
309 		retval = free_tind_blocks(handle, inode, i_data[2]);  in free_ind_block()
316 static int ext4_ext_swap_inode_data(handle_t *handle, struct inode *inode,  in ext4_ext_swap_inode_data()  argument
317 						struct inode *tmp_inode)  in ext4_ext_swap_inode_data()
321 	struct ext4_inode_info *ei = EXT4_I(inode);  in ext4_ext_swap_inode_data()
339 	down_write(&EXT4_I(inode)->i_data_sem);  in ext4_ext_swap_inode_data()
345 	if (!ext4_test_inode_state(inode, EXT4_STATE_EXT_MIGRATE)) {  in ext4_ext_swap_inode_data()
347 		up_write(&EXT4_I(inode)->i_data_sem);  in ext4_ext_swap_inode_data()
350 		ext4_clear_inode_state(inode, EXT4_STATE_EXT_MIGRATE);  in ext4_ext_swap_inode_data()
355 	ext4_set_inode_flag(inode, EXT4_INODE_EXTENTS);  in ext4_ext_swap_inode_data()
367 	spin_lock(&inode->i_lock);  in ext4_ext_swap_inode_data()
368 	inode->i_blocks += tmp_inode->i_blocks;  in ext4_ext_swap_inode_data()
369 	spin_unlock(&inode->i_lock);  in ext4_ext_swap_inode_data()
370 	up_write(&EXT4_I(inode)->i_data_sem);  in ext4_ext_swap_inode_data()
376 	retval = free_ind_block(handle, inode, i_data);  in ext4_ext_swap_inode_data()
377 	ext4_mark_inode_dirty(handle, inode);  in ext4_ext_swap_inode_data()
383 static int free_ext_idx(handle_t *handle, struct inode *inode,  in free_ext_idx()  argument
392 	bh = sb_bread(inode->i_sb, block);  in free_ext_idx()
400 			retval = free_ext_idx(handle, inode, ix);  in free_ext_idx()
406 	extend_credit_for_blkdel(handle, inode);  in free_ext_idx()
407 	ext4_free_blocks(handle, inode, NULL, block, 1,  in free_ext_idx()
415 static int free_ext_block(handle_t *handle, struct inode *inode)  in free_ext_block()  argument
418 	struct ext4_inode_info *ei = EXT4_I(inode);  in free_ext_block()
428 		retval = free_ext_idx(handle, inode, ix);  in free_ext_block()
435 int ext4_ext_migrate(struct inode *inode)  in ext4_ext_migrate()  argument
441 	struct inode *tmp_inode = NULL;  in ext4_ext_migrate()
451 	if (!EXT4_HAS_INCOMPAT_FEATURE(inode->i_sb,  in ext4_ext_migrate()
453 	    (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)))  in ext4_ext_migrate()
456 	if (S_ISLNK(inode->i_mode) && inode->i_blocks == 0)  in ext4_ext_migrate()
467 	handle = ext4_journal_start(inode, EXT4_HT_MIGRATE,  in ext4_ext_migrate()
468 		4 + EXT4_MAXQUOTAS_TRANS_BLOCKS(inode->i_sb));  in ext4_ext_migrate()
474 	goal = (((inode->i_ino - 1) / EXT4_INODES_PER_GROUP(inode->i_sb)) *  in ext4_ext_migrate()
475 		EXT4_INODES_PER_GROUP(inode->i_sb)) + 1;  in ext4_ext_migrate()
476 	owner[0] = i_uid_read(inode);  in ext4_ext_migrate()
477 	owner[1] = i_gid_read(inode);  in ext4_ext_migrate()
478 	tmp_inode = ext4_new_inode(handle, d_inode(inode->i_sb->s_root),  in ext4_ext_migrate()
485 	i_size_write(tmp_inode, i_size_read(inode));  in ext4_ext_migrate()
512 	down_read(&EXT4_I(inode)->i_data_sem);  in ext4_ext_migrate()
513 	ext4_set_inode_state(inode, EXT4_STATE_EXT_MIGRATE);  in ext4_ext_migrate()
514 	up_read((&EXT4_I(inode)->i_data_sem));  in ext4_ext_migrate()
516 	handle = ext4_journal_start(inode, EXT4_HT_MIGRATE, 1);  in ext4_ext_migrate()
528 	ei = EXT4_I(inode);  in ext4_ext_migrate()
533 	max_entries = inode->i_sb->s_blocksize >> 2;  in ext4_ext_migrate()
575 		retval = ext4_ext_swap_inode_data(handle, inode, tmp_inode);  in ext4_ext_migrate()
616 int ext4_ind_migrate(struct inode *inode)  in ext4_ind_migrate()  argument
619 	struct ext4_super_block		*es = EXT4_SB(inode->i_sb)->s_es;  in ext4_ind_migrate()
620 	struct ext4_inode_info		*ei = EXT4_I(inode);  in ext4_ind_migrate()
628 	if (!EXT4_HAS_INCOMPAT_FEATURE(inode->i_sb,  in ext4_ind_migrate()
630 	    (!ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)))  in ext4_ind_migrate()
633 	if (EXT4_HAS_RO_COMPAT_FEATURE(inode->i_sb,  in ext4_ind_migrate()
642 	if (test_opt(inode->i_sb, DELALLOC))  in ext4_ind_migrate()
643 		ext4_alloc_da_blocks(inode);  in ext4_ind_migrate()
645 	handle = ext4_journal_start(inode, EXT4_HT_MIGRATE, 1);  in ext4_ind_migrate()
649 	down_write(&EXT4_I(inode)->i_data_sem);  in ext4_ind_migrate()
650 	ret = ext4_ext_check_inode(inode);  in ext4_ind_migrate()
654 	eh = ext_inode_hdr(inode);  in ext4_ind_migrate()
674 	ext4_clear_inode_flag(inode, EXT4_INODE_EXTENTS);  in ext4_ind_migrate()
678 	ext4_mark_inode_dirty(handle, inode);  in ext4_ind_migrate()
681 	up_write(&EXT4_I(inode)->i_data_sem);  in ext4_ind_migrate()