134 static int ext4_bh_delay_or_unwritten(handle_t *handle, struct buffer_head *bh);
157 int ext4_truncate_restart_trans(handle_t *handle, struct inode *inode,  in ext4_truncate_restart_trans()  argument
169 	jbd_debug(2, "restarting handle %p\n", handle);  in ext4_truncate_restart_trans()
171 	ret = ext4_journal_restart(handle, nblocks);  in ext4_truncate_restart_trans()
183 	handle_t *handle;  in ext4_evict_inode()  local
237 	handle = ext4_journal_start(inode, EXT4_HT_TRUNCATE,  in ext4_evict_inode()
239 	if (IS_ERR(handle)) {  in ext4_evict_inode()
240 		ext4_std_error(inode->i_sb, PTR_ERR(handle));  in ext4_evict_inode()
252 		ext4_handle_sync(handle);  in ext4_evict_inode()
254 	err = ext4_mark_inode_dirty(handle, inode);  in ext4_evict_inode()
269 	if (!ext4_handle_has_enough_credits(handle, 3)) {  in ext4_evict_inode()
270 		err = ext4_journal_extend(handle, 3);  in ext4_evict_inode()
272 			err = ext4_journal_restart(handle, 3);  in ext4_evict_inode()
277 			ext4_journal_stop(handle);  in ext4_evict_inode()
292 	ext4_orphan_del(handle, inode);  in ext4_evict_inode()
302 	if (ext4_mark_inode_dirty(handle, inode))  in ext4_evict_inode()
306 		ext4_free_inode(handle, inode);  in ext4_evict_inode()
307 	ext4_journal_stop(handle);  in ext4_evict_inode()
389 static void ext4_map_blocks_es_recheck(handle_t *handle,  in ext4_map_blocks_es_recheck()  argument
408 		retval = ext4_ext_map_blocks(handle, inode, map, flags &  in ext4_map_blocks_es_recheck()
411 		retval = ext4_ind_map_blocks(handle, inode, map, flags &  in ext4_map_blocks_es_recheck()
457 int ext4_map_blocks(handle_t *handle, struct inode *inode,  in ext4_map_blocks()  argument
501 		ext4_map_blocks_es_recheck(handle, inode, map,  in ext4_map_blocks()
514 		retval = ext4_ext_map_blocks(handle, inode, map, flags &  in ext4_map_blocks()
517 		retval = ext4_ind_map_blocks(handle, inode, map, flags &  in ext4_map_blocks()
592 		retval = ext4_ext_map_blocks(handle, inode, map, flags);  in ext4_map_blocks()
594 		retval = ext4_ind_map_blocks(handle, inode, map, flags);  in ext4_map_blocks()
693 	handle_t *handle = ext4_journal_current_handle();  in _ext4_get_block()  local
704 	if (flags && !(flags & EXT4_GET_BLOCKS_NO_LOCK) && !handle) {  in _ext4_get_block()
709 		handle = ext4_journal_start(inode, EXT4_HT_MAP_BLOCKS,  in _ext4_get_block()
711 		if (IS_ERR(handle)) {  in _ext4_get_block()
712 			ret = PTR_ERR(handle);  in _ext4_get_block()
718 	ret = ext4_map_blocks(handle, inode, &map, flags);  in _ext4_get_block()
740 		ext4_journal_stop(handle);  in _ext4_get_block()
754 struct buffer_head *ext4_getblk(handle_t *handle, struct inode *inode,  in ext4_getblk()  argument
761 	J_ASSERT(handle != NULL || create == 0);  in ext4_getblk()
765 	err = ext4_map_blocks(handle, inode, &map,  in ext4_getblk()
778 		J_ASSERT(handle != NULL);  in ext4_getblk()
789 		err = ext4_journal_get_create_access(handle, bh);  in ext4_getblk()
800 		err = ext4_handle_dirty_metadata(handle, inode, bh);  in ext4_getblk()
811 struct buffer_head *ext4_bread(handle_t *handle, struct inode *inode,  in ext4_bread()  argument
816 	bh = ext4_getblk(handle, inode, block, create);  in ext4_bread()
829 int ext4_walk_page_buffers(handle_t *handle,  in ext4_walk_page_buffers()  argument
834 			   int (*fn)(handle_t *handle,  in ext4_walk_page_buffers()  argument
853 		err = (*fn)(handle, bh);  in ext4_walk_page_buffers()
884 int do_journal_get_write_access(handle_t *handle,  in do_journal_get_write_access()  argument
903 	ret = ext4_journal_get_write_access(handle, bh);  in do_journal_get_write_access()
905 		ret = ext4_handle_dirty_metadata(handle, NULL, bh);  in do_journal_get_write_access()
1006 	handle_t *handle;  in ext4_write_begin()  local
1045 	handle = ext4_journal_start(inode, EXT4_HT_WRITE_PAGE, needed_blocks);  in ext4_write_begin()
1046 	if (IS_ERR(handle)) {  in ext4_write_begin()
1048 		return PTR_ERR(handle);  in ext4_write_begin()
1056 		ext4_journal_stop(handle);  in ext4_write_begin()
1076 		ret = ext4_walk_page_buffers(handle, page_buffers(page),  in ext4_write_begin()
1092 			ext4_orphan_add(handle, inode);  in ext4_write_begin()
1094 		ext4_journal_stop(handle);  in ext4_write_begin()
1118 static int write_end_fn(handle_t *handle, struct buffer_head *bh)  in write_end_fn()  argument
1124 	ret = ext4_handle_dirty_metadata(handle, NULL, bh);  in write_end_fn()
1142 	handle_t *handle = ext4_journal_current_handle();  in ext4_write_end()  local
1150 		ret = ext4_jbd2_file_inode(handle, inode);  in ext4_write_end()
1184 		ext4_mark_inode_dirty(handle, inode);  in ext4_write_end()
1191 		ext4_orphan_add(handle, inode);  in ext4_write_end()
1193 	ret2 = ext4_journal_stop(handle);  in ext4_write_end()
1216 	handle_t *handle = ext4_journal_current_handle();  in ext4_journalled_write_end()  local
1228 	BUG_ON(!ext4_handle_valid(handle));  in ext4_journalled_write_end()
1240 		ret = ext4_walk_page_buffers(handle, page_buffers(page), from,  in ext4_journalled_write_end()
1247 	EXT4_I(inode)->i_datasync_tid = handle->h_transaction->t_tid;  in ext4_journalled_write_end()
1255 		ret2 = ext4_mark_inode_dirty(handle, inode);  in ext4_journalled_write_end()
1265 		ext4_orphan_add(handle, inode);  in ext4_journalled_write_end()
1267 	ret2 = ext4_journal_stop(handle);  in ext4_journalled_write_end()
1506 static int ext4_bh_delay_or_unwritten(handle_t *handle, struct buffer_head *bh)  in ext4_bh_delay_or_unwritten()  argument
1694 static int bget_one(handle_t *handle, struct buffer_head *bh)  in bget_one()  argument
1700 static int bput_one(handle_t *handle, struct buffer_head *bh)  in bput_one()  argument
1712 	handle_t *handle = NULL;  in __ext4_journalled_writepage()  local
1731 		ext4_walk_page_buffers(handle, page_bufs, 0, len,  in __ext4_journalled_writepage()
1742 	handle = ext4_journal_start(inode, EXT4_HT_WRITE_PAGE,  in __ext4_journalled_writepage()
1744 	if (IS_ERR(handle)) {  in __ext4_journalled_writepage()
1745 		ret = PTR_ERR(handle);  in __ext4_journalled_writepage()
1749 	BUG_ON(!ext4_handle_valid(handle));  in __ext4_journalled_writepage()
1755 		ext4_journal_stop(handle);  in __ext4_journalled_writepage()
1762 		ret = ext4_journal_get_write_access(handle, inode_bh);  in __ext4_journalled_writepage()
1764 		err = ext4_handle_dirty_metadata(handle, inode, inode_bh);  in __ext4_journalled_writepage()
1767 		ret = ext4_walk_page_buffers(handle, page_bufs, 0, len, NULL,  in __ext4_journalled_writepage()
1770 		err = ext4_walk_page_buffers(handle, page_bufs, 0, len, NULL,  in __ext4_journalled_writepage()
1775 	EXT4_I(inode)->i_datasync_tid = handle->h_transaction->t_tid;  in __ext4_journalled_writepage()
1776 	err = ext4_journal_stop(handle);  in __ext4_journalled_writepage()
2118 static int mpage_map_one_extent(handle_t *handle, struct mpage_da_data *mpd)  in mpage_map_one_extent()  argument
2149 	err = ext4_map_blocks(handle, inode, map, get_blocks_flags);  in mpage_map_one_extent()
2153 		if (!mpd->io_submit.io_end->handle &&  in mpage_map_one_extent()
2154 		    ext4_handle_valid(handle)) {  in mpage_map_one_extent()
2155 			mpd->io_submit.io_end->handle = handle->h_rsv_handle;  in mpage_map_one_extent()
2156 			handle->h_rsv_handle = NULL;  in mpage_map_one_extent()
2192 static int mpage_map_and_submit_extent(handle_t *handle,  in mpage_map_and_submit_extent()  argument
2205 		err = mpage_map_one_extent(handle, mpd);  in mpage_map_and_submit_extent()
2264 		err2 = ext4_mark_inode_dirty(handle, inode);  in mpage_map_and_submit_extent()
2422 	handle_t *handle = NULL;  in ext4_writepages()  local
2480 		handle = ext4_journal_start(inode, EXT4_HT_INODE, 1);  in ext4_writepages()
2481 		if (IS_ERR(handle)) {  in ext4_writepages()
2482 			ret = PTR_ERR(handle);  in ext4_writepages()
2487 		ext4_destroy_inline_data(handle, inode);  in ext4_writepages()
2488 		ext4_journal_stop(handle);  in ext4_writepages()
2532 		handle = ext4_journal_start_with_reserve(inode,  in ext4_writepages()
2534 		if (IS_ERR(handle)) {  in ext4_writepages()
2535 			ret = PTR_ERR(handle);  in ext4_writepages()
2548 				ret = mpage_map_and_submit_extent(handle, &mpd,  in ext4_writepages()
2560 		ext4_journal_stop(handle);  in ext4_writepages()
2660 	handle_t *handle;  in ext4_da_write_begin()  local
2702 	handle = ext4_journal_start(inode, EXT4_HT_WRITE_PAGE,  in ext4_da_write_begin()
2704 	if (IS_ERR(handle)) {  in ext4_da_write_begin()
2706 		return PTR_ERR(handle);  in ext4_da_write_begin()
2714 		ext4_journal_stop(handle);  in ext4_da_write_begin()
2728 		ext4_journal_stop(handle);  in ext4_da_write_begin()
2779 	handle_t *handle = ext4_journal_current_handle();  in ext4_da_write_end()  local
2806 			ext4_mark_inode_dirty(handle, inode);  in ext4_da_write_end()
2822 	ret2 = ext4_journal_stop(handle);  in ext4_da_write_end()
3362 static int __ext4_block_zero_page_range(handle_t *handle,  in __ext4_block_zero_page_range()  argument
3429 		err = ext4_journal_get_write_access(handle, bh);  in __ext4_block_zero_page_range()
3437 		err = ext4_handle_dirty_metadata(handle, inode, bh);  in __ext4_block_zero_page_range()
3442 			err = ext4_jbd2_file_inode(handle, inode);  in __ext4_block_zero_page_range()
3458 static int ext4_block_zero_page_range(handle_t *handle,  in ext4_block_zero_page_range()  argument
3475 	return __ext4_block_zero_page_range(handle, mapping, from, length);  in ext4_block_zero_page_range()
3484 static int ext4_block_truncate_page(handle_t *handle,  in ext4_block_truncate_page()  argument
3495 	return ext4_block_zero_page_range(handle, mapping, from, length);  in ext4_block_truncate_page()
3498 int ext4_zero_partial_blocks(handle_t *handle, struct inode *inode,  in ext4_zero_partial_blocks()  argument
3517 		err = ext4_block_zero_page_range(handle, mapping,  in ext4_zero_partial_blocks()
3523 		err = ext4_block_zero_page_range(handle, mapping,  in ext4_zero_partial_blocks()
3530 		err = ext4_block_zero_page_range(handle, mapping,  in ext4_zero_partial_blocks()
3556 	handle_t *handle;  in ext4_update_disksize_before_punch()  local
3566 	handle = ext4_journal_start(inode, EXT4_HT_MISC, 1);  in ext4_update_disksize_before_punch()
3567 	if (IS_ERR(handle))  in ext4_update_disksize_before_punch()
3568 		return PTR_ERR(handle);  in ext4_update_disksize_before_punch()
3570 	ext4_mark_inode_dirty(handle, inode);  in ext4_update_disksize_before_punch()
3571 	ext4_journal_stop(handle);  in ext4_update_disksize_before_punch()
3593 	handle_t *handle;  in ext4_punch_hole()  local
3666 	handle = ext4_journal_start(inode, EXT4_HT_TRUNCATE, credits);  in ext4_punch_hole()
3667 	if (IS_ERR(handle)) {  in ext4_punch_hole()
3668 		ret = PTR_ERR(handle);  in ext4_punch_hole()
3673 	ret = ext4_zero_partial_blocks(handle, inode, offset,  in ext4_punch_hole()
3700 		ret = ext4_ind_remove_space(handle, inode, first_block,  in ext4_punch_hole()
3705 		ext4_handle_sync(handle);  in ext4_punch_hole()
3708 	ext4_mark_inode_dirty(handle, inode);  in ext4_punch_hole()
3710 	ext4_journal_stop(handle);  in ext4_punch_hole()
3776 	handle_t *handle;  in ext4_truncate()  local
3815 	handle = ext4_journal_start(inode, EXT4_HT_TRUNCATE, credits);  in ext4_truncate()
3816 	if (IS_ERR(handle)) {  in ext4_truncate()
3817 		ext4_std_error(inode->i_sb, PTR_ERR(handle));  in ext4_truncate()
3822 		ext4_block_truncate_page(handle, mapping, inode->i_size);  in ext4_truncate()
3833 	if (ext4_orphan_add(handle, inode))  in ext4_truncate()
3841 		ext4_ext_truncate(handle, inode);  in ext4_truncate()
3843 		ext4_ind_truncate(handle, inode);  in ext4_truncate()
3848 		ext4_handle_sync(handle);  in ext4_truncate()
3859 		ext4_orphan_del(handle, inode);  in ext4_truncate()
3862 	ext4_mark_inode_dirty(handle, inode);  in ext4_truncate()
3863 	ext4_journal_stop(handle);  in ext4_truncate()
4338 static int ext4_inode_blocks_set(handle_t *handle,  in ext4_inode_blocks_set()  argument
4448 static int ext4_do_update_inode(handle_t *handle,  in ext4_do_update_inode()  argument
4501 	err = ext4_inode_blocks_set(handle, raw_inode, ei);  in ext4_do_update_inode()
4557 	rc = ext4_handle_dirty_metadata(handle, NULL, bh);  in ext4_do_update_inode()
4563 		err = ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh);  in ext4_do_update_inode()
4569 		ext4_handle_sync(handle);  in ext4_do_update_inode()
4570 		err = ext4_handle_dirty_super(handle, sb);  in ext4_do_update_inode()
4572 	ext4_update_inode_fsync_trans(handle, inode, need_datasync);  in ext4_do_update_inode()
4739 		handle_t *handle;  in ext4_setattr()  local
4743 		handle = ext4_journal_start(inode, EXT4_HT_QUOTA,  in ext4_setattr()
4746 		if (IS_ERR(handle)) {  in ext4_setattr()
4747 			error = PTR_ERR(handle);  in ext4_setattr()
4752 			ext4_journal_stop(handle);  in ext4_setattr()
4761 		error = ext4_mark_inode_dirty(handle, inode);  in ext4_setattr()
4762 		ext4_journal_stop(handle);  in ext4_setattr()
4766 		handle_t *handle;  in ext4_setattr()  local
4786 			handle = ext4_journal_start(inode, EXT4_HT_INODE, 3);  in ext4_setattr()
4787 			if (IS_ERR(handle)) {  in ext4_setattr()
4788 				error = PTR_ERR(handle);  in ext4_setattr()
4791 			if (ext4_handle_valid(handle)) {  in ext4_setattr()
4792 				error = ext4_orphan_add(handle, inode);  in ext4_setattr()
4797 			rc = ext4_mark_inode_dirty(handle, inode);  in ext4_setattr()
4808 			ext4_journal_stop(handle);  in ext4_setattr()
5000 int ext4_mark_iloc_dirty(handle_t *handle,  in ext4_mark_iloc_dirty()  argument
5012 	err = ext4_do_update_inode(handle, inode, iloc);  in ext4_mark_iloc_dirty()
5023 ext4_reserve_inode_write(handle_t *handle, struct inode *inode,  in ext4_reserve_inode_write()  argument
5031 		err = ext4_journal_get_write_access(handle, iloc->bh);  in ext4_reserve_inode_write()
5048 				   handle_t *handle)  in ext4_expand_extra_isize()  argument
5071 					  raw_inode, handle);  in ext4_expand_extra_isize()
5087 int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode)  in ext4_mark_inode_dirty()  argument
5096 	err = ext4_reserve_inode_write(handle, inode, &iloc);  in ext4_mark_inode_dirty()
5097 	if (ext4_handle_valid(handle) &&  in ext4_mark_inode_dirty()
5107 		if ((jbd2_journal_extend(handle,  in ext4_mark_inode_dirty()
5111 						      iloc, handle);  in ext4_mark_inode_dirty()
5128 		err = ext4_mark_iloc_dirty(handle, inode, &iloc);  in ext4_mark_inode_dirty()
5152 	handle_t *handle;  in ext4_dirty_inode()  local
5156 	handle = ext4_journal_start(inode, EXT4_HT_INODE, 2);  in ext4_dirty_inode()
5157 	if (IS_ERR(handle))  in ext4_dirty_inode()
5160 	ext4_mark_inode_dirty(handle, inode);  in ext4_dirty_inode()
5162 	ext4_journal_stop(handle);  in ext4_dirty_inode()
5175 static int ext4_pin_inode(handle_t *handle, struct inode *inode)
5180 	if (handle) {
5184 			err = jbd2_journal_get_write_access(handle, iloc.bh);
5186 				err = ext4_handle_dirty_metadata(handle,
5200 	handle_t *handle;  in ext4_change_inode_journal_flag()  local
5262 	handle = ext4_journal_start(inode, EXT4_HT_INODE, 1);  in ext4_change_inode_journal_flag()
5263 	if (IS_ERR(handle))  in ext4_change_inode_journal_flag()
5264 		return PTR_ERR(handle);  in ext4_change_inode_journal_flag()
5266 	err = ext4_mark_inode_dirty(handle, inode);  in ext4_change_inode_journal_flag()
5267 	ext4_handle_sync(handle);  in ext4_change_inode_journal_flag()
5268 	ext4_journal_stop(handle);  in ext4_change_inode_journal_flag()
5274 static int ext4_bh_unmapped(handle_t *handle, struct buffer_head *bh)  in ext4_bh_unmapped()  argument
5288 	handle_t *handle;  in ext4_page_mkwrite()  local
5342 	handle = ext4_journal_start(inode, EXT4_HT_WRITE_PAGE,  in ext4_page_mkwrite()
5344 	if (IS_ERR(handle)) {  in ext4_page_mkwrite()
5350 		if (ext4_walk_page_buffers(handle, page_buffers(page), 0,  in ext4_page_mkwrite()
5354 			ext4_journal_stop(handle);  in ext4_page_mkwrite()
5359 	ext4_journal_stop(handle);  in ext4_page_mkwrite()