71 ext4_double_up_write_data_sem(struct inode *orig_inode,  in ext4_double_up_write_data_sem()  argument
74 	up_write(&EXT4_I(orig_inode)->i_data_sem);  in ext4_double_up_write_data_sem()
252 	struct inode *orig_inode = file_inode(o_filp);  in move_extent_per_page()  local
256 	unsigned long blocksize = orig_inode->i_sb->s_blocksize;  in move_extent_per_page()
260 	int from = data_offset_in_page << orig_inode->i_blkbits;  in move_extent_per_page()
261 	int blocks_per_page = PAGE_SIZE >> orig_inode->i_blkbits;  in move_extent_per_page()
262 	struct super_block *sb = orig_inode->i_sb;  in move_extent_per_page()
271 	jblocks = ext4_writepage_trans_blocks(orig_inode) * 2;  in move_extent_per_page()
272 	handle = ext4_journal_start(orig_inode, EXT4_HT_MOVE_EXTENTS, jblocks);  in move_extent_per_page()
286 	    ((orig_inode->i_size - 1) >> orig_inode->i_blkbits)) {  in move_extent_per_page()
288 		tmp_data_size = orig_inode->i_size & (blocksize - 1);  in move_extent_per_page()
297 			((block_len_in_page - 1) << orig_inode->i_blkbits);  in move_extent_per_page()
299 		data_size = block_len_in_page << orig_inode->i_blkbits;  in move_extent_per_page()
303 	*err = mext_page_double_lock(orig_inode, donor_inode, orig_page_offset,  in move_extent_per_page()
315 		ext4_double_down_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
318 		unwritten = mext_check_coverage(orig_inode, orig_blk_offset,  in move_extent_per_page()
329 			ext4_double_up_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
339 		replaced_count = ext4_swap_extents(handle, orig_inode,  in move_extent_per_page()
344 		ext4_double_up_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
359 	ext4_double_down_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
360 	replaced_count = ext4_swap_extents(handle, orig_inode, donor_inode,  in move_extent_per_page()
363 	ext4_double_up_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
368 				block_len_in_page << orig_inode->i_blkbits;  in move_extent_per_page()
375 		create_empty_buffers(pagep[0], 1 << orig_inode->i_blkbits, 0);  in move_extent_per_page()
380 		*err = ext4_get_block(orig_inode, orig_blk_offset + i, bh, 0);  in move_extent_per_page()
393 	*err = ext4_jbd2_inode_add_write(handle, orig_inode,  in move_extent_per_page()
419 	ext4_double_down_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
420 	replaced_count = ext4_swap_extents(handle, donor_inode, orig_inode,  in move_extent_per_page()
423 	ext4_double_up_write_data_sem(orig_inode, donor_inode);  in move_extent_per_page()
425 		ext4_error_inode_block(orig_inode, (sector_t)(orig_blk_offset),  in move_extent_per_page()
448 mext_check_arguments(struct inode *orig_inode,  in mext_check_arguments()  argument
453 	unsigned int blkbits = orig_inode->i_blkbits;  in mext_check_arguments()
456 	orig_eof = (i_size_read(orig_inode) + blocksize - 1) >> blkbits;  in mext_check_arguments()
463 			   orig_inode->i_ino, donor_inode->i_ino);  in mext_check_arguments()
471 	if (IS_SWAPFILE(orig_inode) || IS_SWAPFILE(donor_inode)) {  in mext_check_arguments()
474 			orig_inode->i_ino, donor_inode->i_ino);  in mext_check_arguments()
478 	if (ext4_is_quota_file(orig_inode) && ext4_is_quota_file(donor_inode)) {  in mext_check_arguments()
481 			orig_inode->i_ino, donor_inode->i_ino);  in mext_check_arguments()
486 	if (!(ext4_test_inode_flag(orig_inode, EXT4_INODE_EXTENTS))) {  in mext_check_arguments()
488 			"based file [ino:orig %lu]\n", orig_inode->i_ino);  in mext_check_arguments()
496 	if ((!orig_inode->i_size) || (!donor_inode->i_size)) {  in mext_check_arguments()
502 	if ((orig_start & ~(PAGE_MASK >> orig_inode->i_blkbits)) !=  in mext_check_arguments()
503 	    (donor_start & ~(PAGE_MASK >> orig_inode->i_blkbits))) {  in mext_check_arguments()
506 			orig_inode->i_ino, donor_inode->i_ino);  in mext_check_arguments()
517 			orig_inode->i_ino, donor_inode->i_ino);  in mext_check_arguments()
530 			"[ino:orig %lu, donor %lu]\n", orig_inode->i_ino,  in mext_check_arguments()
556 	struct inode *orig_inode = file_inode(o_filp);  in ext4_move_extents()  local
559 	int blocks_per_page = PAGE_SIZE >> orig_inode->i_blkbits;  in ext4_move_extents()
564 	if (orig_inode->i_sb != donor_inode->i_sb) {  in ext4_move_extents()
567 			orig_inode->i_ino, donor_inode->i_ino);  in ext4_move_extents()
572 	if (orig_inode == donor_inode) {  in ext4_move_extents()
575 			orig_inode->i_ino, donor_inode->i_ino);  in ext4_move_extents()
580 	if (!S_ISREG(orig_inode->i_mode) || !S_ISREG(donor_inode->i_mode)) {  in ext4_move_extents()
583 			orig_inode->i_ino, donor_inode->i_ino);  in ext4_move_extents()
589 	if (ext4_should_journal_data(orig_inode) ||  in ext4_move_extents()
591 		ext4_msg(orig_inode->i_sb, KERN_ERR,  in ext4_move_extents()
596 	if (IS_ENCRYPTED(orig_inode) || IS_ENCRYPTED(donor_inode)) {  in ext4_move_extents()
597 		ext4_msg(orig_inode->i_sb, KERN_ERR,  in ext4_move_extents()
603 	lock_two_nondirectories(orig_inode, donor_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()
626 		ret = get_ext_path(orig_inode, o_start, &path);  in ext4_move_extents()
659 					       orig_inode->i_blkbits);  in ext4_move_extents()
672 		ext4_double_up_write_data_sem(orig_inode, donor_inode);  in ext4_move_extents()
678 		ext4_double_down_write_data_sem(orig_inode, donor_inode);  in ext4_move_extents()
687 		ext4_discard_preallocations(orig_inode, 0);  in ext4_move_extents()
693 	ext4_double_up_write_data_sem(orig_inode, donor_inode);  in ext4_move_extents()
694 	unlock_two_nondirectories(orig_inode, donor_inode);  in ext4_move_extents()