79 ext4_double_up_write_data_sem(struct inode *orig_inode,  in ext4_double_up_write_data_sem()  argument
82 	up_write(&EXT4_I(orig_inode)->i_data_sem);  in ext4_double_up_write_data_sem()
262 	struct inode *orig_inode = file_inode(o_filp);  in move_extent_per_page()  local
266 	unsigned long blocksize = orig_inode->i_sb->s_blocksize;  in move_extent_per_page()
270 	int from = data_offset_in_page << orig_inode->i_blkbits;  in move_extent_per_page()
271 	int blocks_per_page = PAGE_CACHE_SIZE >> orig_inode->i_blkbits;  in move_extent_per_page()
272 	struct super_block *sb = orig_inode->i_sb;  in move_extent_per_page()
281 	jblocks = ext4_writepage_trans_blocks(orig_inode) * 2;  in move_extent_per_page()
282 	handle = ext4_journal_start(orig_inode, EXT4_HT_MOVE_EXTENTS, jblocks);  in move_extent_per_page()
296 	    ((orig_inode->i_size - 1) >> orig_inode->i_blkbits)) {  in move_extent_per_page()
298 		tmp_data_size = orig_inode->i_size & (blocksize - 1);  in move_extent_per_page()
307 			((block_len_in_page - 1) << orig_inode->i_blkbits);  in move_extent_per_page()
309 		data_size = block_len_in_page << orig_inode->i_blkbits;  in move_extent_per_page()
313 	*err = mext_page_double_lock(orig_inode, donor_inode, orig_page_offset,  in move_extent_per_page()
325 		ext4_double_down_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
328 		unwritten = mext_check_coverage(orig_inode, orig_blk_offset,  in move_extent_per_page()
339 			ext4_double_up_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
349 		replaced_count = ext4_swap_extents(handle, orig_inode,  in move_extent_per_page()
354 		ext4_double_up_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
369 	ext4_double_down_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
370 	replaced_count = ext4_swap_extents(handle, orig_inode, donor_inode,  in move_extent_per_page()
373 	ext4_double_up_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
378 				block_len_in_page << orig_inode->i_blkbits;  in move_extent_per_page()
385 		create_empty_buffers(pagep[0], 1 << orig_inode->i_blkbits, 0);  in move_extent_per_page()
390 		*err = ext4_get_block(orig_inode, orig_blk_offset + i, bh, 0);  in move_extent_per_page()
403 	*err = ext4_jbd2_file_inode(handle, orig_inode);  in move_extent_per_page()
428 	ext4_double_down_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
429 	replaced_count = ext4_swap_extents(handle, donor_inode, orig_inode,  in move_extent_per_page()
432 	ext4_double_up_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
434 		EXT4_ERROR_INODE_BLOCK(orig_inode, (sector_t)(orig_blk_offset),  in move_extent_per_page()
457 mext_check_arguments(struct inode *orig_inode,  in mext_check_arguments()  argument
462 	unsigned int blkbits = orig_inode->i_blkbits;  in mext_check_arguments()
465 	orig_eof = (i_size_read(orig_inode) + blocksize - 1) >> blkbits;  in mext_check_arguments()
472 			   orig_inode->i_ino, donor_inode->i_ino);  in mext_check_arguments()
480 	if (IS_SWAPFILE(orig_inode) || IS_SWAPFILE(donor_inode)) {  in mext_check_arguments()
483 			orig_inode->i_ino, donor_inode->i_ino);  in mext_check_arguments()
487 	if (IS_NOQUOTA(orig_inode) || IS_NOQUOTA(donor_inode)) {  in mext_check_arguments()
490 			orig_inode->i_ino, donor_inode->i_ino);  in mext_check_arguments()
495 	if (!(ext4_test_inode_flag(orig_inode, EXT4_INODE_EXTENTS))) {  in mext_check_arguments()
497 			"based file [ino:orig %lu]\n", orig_inode->i_ino);  in mext_check_arguments()
505 	if ((!orig_inode->i_size) || (!donor_inode->i_size)) {  in mext_check_arguments()
511 	if ((orig_start & ~(PAGE_MASK >> orig_inode->i_blkbits)) !=  in mext_check_arguments()
512 	    (donor_start & ~(PAGE_MASK >> orig_inode->i_blkbits))) {  in mext_check_arguments()
515 			orig_inode->i_ino, donor_inode->i_ino);  in mext_check_arguments()
526 			orig_inode->i_ino, donor_inode->i_ino);  in mext_check_arguments()
539 			"[ino:orig %lu, donor %lu]\n", orig_inode->i_ino,  in mext_check_arguments()
565 	struct inode *orig_inode = file_inode(o_filp);  in ext4_move_extents()  local
568 	int blocks_per_page = PAGE_CACHE_SIZE >> orig_inode->i_blkbits;  in ext4_move_extents()
573 	if (orig_inode->i_sb != donor_inode->i_sb) {  in ext4_move_extents()
576 			orig_inode->i_ino, donor_inode->i_ino);  in ext4_move_extents()
581 	if (orig_inode == donor_inode) {  in ext4_move_extents()
584 			orig_inode->i_ino, donor_inode->i_ino);  in ext4_move_extents()
589 	if (!S_ISREG(orig_inode->i_mode) || !S_ISREG(donor_inode->i_mode)) {  in ext4_move_extents()
592 			orig_inode->i_ino, donor_inode->i_ino);  in ext4_move_extents()
598 	if (ext4_should_journal_data(orig_inode) ||  in ext4_move_extents()
600 		ext4_msg(orig_inode->i_sb, KERN_ERR,  in ext4_move_extents()
605 	if (ext4_encrypted_inode(orig_inode) ||  in ext4_move_extents()
607 		ext4_msg(orig_inode->i_sb, KERN_ERR,  in ext4_move_extents()
613 	lock_two_nondirectories(orig_inode, donor_inode);  in ext4_move_extents()
616 	ext4_inode_block_unlocked_dio(orig_inode);  in ext4_move_extents()
618 	inode_dio_wait(orig_inode);  in ext4_move_extents()
622 	ext4_double_down_write_data_sem(orig_inode, donor_inode);  in ext4_move_extents()
624 	ret = mext_check_arguments(orig_inode, donor_inode, orig_blk,  in ext4_move_extents()
637 		ret = get_ext_path(orig_inode, o_start, &path);  in ext4_move_extents()
670 					       orig_inode->i_blkbits);  in ext4_move_extents()
683 		ext4_double_up_write_data_sem(orig_inode, donor_inode);  in ext4_move_extents()
689 		ext4_double_down_write_data_sem(orig_inode, donor_inode);  in ext4_move_extents()
701 		ext4_discard_preallocations(orig_inode);  in ext4_move_extents()
707 	ext4_double_up_write_data_sem(orig_inode, donor_inode);  in ext4_move_extents()
708 	ext4_inode_resume_unlocked_dio(orig_inode);  in ext4_move_extents()
710 	unlock_two_nondirectories(orig_inode, donor_inode);  in ext4_move_extents()