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()
265 	struct inode *orig_inode = file_inode(o_filp);  in move_extent_per_page()  local
269 	unsigned long blocksize = orig_inode->i_sb->s_blocksize;  in move_extent_per_page()
273 	int from = data_offset_in_page << orig_inode->i_blkbits;  in move_extent_per_page()
274 	int blocks_per_page = PAGE_CACHE_SIZE >> orig_inode->i_blkbits;  in move_extent_per_page()
275 	struct super_block *sb = orig_inode->i_sb;  in move_extent_per_page()
284 	jblocks = ext4_writepage_trans_blocks(orig_inode) * 2;  in move_extent_per_page()
285 	handle = ext4_journal_start(orig_inode, EXT4_HT_MOVE_EXTENTS, jblocks);  in move_extent_per_page()
299 	    ((orig_inode->i_size - 1) >> orig_inode->i_blkbits)) {  in move_extent_per_page()
301 		tmp_data_size = orig_inode->i_size & (blocksize - 1);  in move_extent_per_page()
310 			((block_len_in_page - 1) << orig_inode->i_blkbits);  in move_extent_per_page()
312 		data_size = block_len_in_page << orig_inode->i_blkbits;  in move_extent_per_page()
316 	*err = mext_page_double_lock(orig_inode, donor_inode, orig_page_offset,  in move_extent_per_page()
328 		ext4_double_down_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
331 		unwritten = mext_check_coverage(orig_inode, orig_blk_offset,  in move_extent_per_page()
342 			ext4_double_up_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
352 		replaced_count = ext4_swap_extents(handle, orig_inode,  in move_extent_per_page()
357 		ext4_double_up_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
372 	ext4_double_down_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
373 	replaced_count = ext4_swap_extents(handle, orig_inode, donor_inode,  in move_extent_per_page()
376 	ext4_double_up_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
381 				block_len_in_page << orig_inode->i_blkbits;  in move_extent_per_page()
388 		create_empty_buffers(pagep[0], 1 << orig_inode->i_blkbits, 0);  in move_extent_per_page()
393 		*err = ext4_get_block(orig_inode, orig_blk_offset + i, bh, 0);  in move_extent_per_page()
406 	*err = ext4_jbd2_file_inode(handle, orig_inode);  in move_extent_per_page()
431 	ext4_double_down_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
432 	replaced_count = ext4_swap_extents(handle, donor_inode, orig_inode,  in move_extent_per_page()
435 	ext4_double_up_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
437 		EXT4_ERROR_INODE_BLOCK(orig_inode, (sector_t)(orig_blk_offset),  in move_extent_per_page()
460 mext_check_arguments(struct inode *orig_inode,  in mext_check_arguments()  argument
465 	unsigned int blkbits = orig_inode->i_blkbits;  in mext_check_arguments()
468 	orig_eof = (i_size_read(orig_inode) + blocksize - 1) >> blkbits;  in mext_check_arguments()
475 			   orig_inode->i_ino, donor_inode->i_ino);  in mext_check_arguments()
483 	if (IS_SWAPFILE(orig_inode) || IS_SWAPFILE(donor_inode)) {  in mext_check_arguments()
486 			orig_inode->i_ino, donor_inode->i_ino);  in mext_check_arguments()
490 	if (IS_NOQUOTA(orig_inode) || IS_NOQUOTA(donor_inode)) {  in mext_check_arguments()
493 			orig_inode->i_ino, donor_inode->i_ino);  in mext_check_arguments()
498 	if (!(ext4_test_inode_flag(orig_inode, EXT4_INODE_EXTENTS))) {  in mext_check_arguments()
500 			"based file [ino:orig %lu]\n", orig_inode->i_ino);  in mext_check_arguments()
508 	if ((!orig_inode->i_size) || (!donor_inode->i_size)) {  in mext_check_arguments()
514 	if ((orig_start & ~(PAGE_MASK >> orig_inode->i_blkbits)) !=  in mext_check_arguments()
515 	    (donor_start & ~(PAGE_MASK >> orig_inode->i_blkbits))) {  in mext_check_arguments()
518 			orig_inode->i_ino, donor_inode->i_ino);  in mext_check_arguments()
529 			orig_inode->i_ino, donor_inode->i_ino);  in mext_check_arguments()
538 			"[ino:orig %lu, donor %lu]\n", orig_inode->i_ino,  in mext_check_arguments()
564 	struct inode *orig_inode = file_inode(o_filp);  in ext4_move_extents()  local
567 	int blocks_per_page = PAGE_CACHE_SIZE >> orig_inode->i_blkbits;  in ext4_move_extents()
572 	if (orig_inode->i_sb != donor_inode->i_sb) {  in ext4_move_extents()
575 			orig_inode->i_ino, donor_inode->i_ino);  in ext4_move_extents()
580 	if (orig_inode == donor_inode) {  in ext4_move_extents()
583 			orig_inode->i_ino, donor_inode->i_ino);  in ext4_move_extents()
588 	if (!S_ISREG(orig_inode->i_mode) || !S_ISREG(donor_inode->i_mode)) {  in ext4_move_extents()
591 			orig_inode->i_ino, donor_inode->i_ino);  in ext4_move_extents()
596 	if (ext4_should_journal_data(orig_inode) ||  in ext4_move_extents()
601 	lock_two_nondirectories(orig_inode, donor_inode);  in ext4_move_extents()
604 	ext4_inode_block_unlocked_dio(orig_inode);  in ext4_move_extents()
606 	inode_dio_wait(orig_inode);  in ext4_move_extents()
610 	ext4_double_down_write_data_sem(orig_inode, donor_inode);  in ext4_move_extents()
612 	ret = mext_check_arguments(orig_inode, donor_inode, orig_blk,  in ext4_move_extents()
625 		ret = get_ext_path(orig_inode, o_start, &path);  in ext4_move_extents()
658 					       orig_inode->i_blkbits);  in ext4_move_extents()
671 		ext4_double_up_write_data_sem(orig_inode, donor_inode);  in ext4_move_extents()
677 		ext4_double_down_write_data_sem(orig_inode, donor_inode);  in ext4_move_extents()
689 		ext4_discard_preallocations(orig_inode);  in ext4_move_extents()
695 	ext4_double_up_write_data_sem(orig_inode, donor_inode);  in ext4_move_extents()
696 	ext4_inode_resume_unlocked_dio(orig_inode);  in ext4_move_extents()
698 	unlock_two_nondirectories(orig_inode, donor_inode);  in ext4_move_extents()