144 static int ext4_bh_delay_or_unwritten(handle_t *handle, struct buffer_head *bh);
172 int ext4_truncate_restart_trans(handle_t *handle, struct inode *inode,  in ext4_truncate_restart_trans()  argument
184 	jbd_debug(2, "restarting handle %p\n", handle);  in ext4_truncate_restart_trans()
186 	ret = ext4_journal_restart(handle, nblocks);  in ext4_truncate_restart_trans()
198 	handle_t *handle;  in ext4_evict_inode()  local
273 	handle = ext4_journal_start(inode, EXT4_HT_TRUNCATE,  in ext4_evict_inode()
275 	if (IS_ERR(handle)) {  in ext4_evict_inode()
276 		ext4_std_error(inode->i_sb, PTR_ERR(handle));  in ext4_evict_inode()
289 		ext4_handle_sync(handle);  in ext4_evict_inode()
301 	err = ext4_mark_inode_dirty(handle, inode);  in ext4_evict_inode()
318 	err = ext4_xattr_delete_inode(handle, inode, &ea_inode_array,  in ext4_evict_inode()
323 		ext4_journal_stop(handle);  in ext4_evict_inode()
339 	ext4_orphan_del(handle, inode);  in ext4_evict_inode()
349 	if (ext4_mark_inode_dirty(handle, inode))  in ext4_evict_inode()
353 		ext4_free_inode(handle, inode);  in ext4_evict_inode()
354 	ext4_journal_stop(handle);  in ext4_evict_inode()
457 static void ext4_map_blocks_es_recheck(handle_t *handle,  in ext4_map_blocks_es_recheck()  argument
475 		retval = ext4_ext_map_blocks(handle, inode, map, flags &  in ext4_map_blocks_es_recheck()
478 		retval = ext4_ind_map_blocks(handle, inode, map, flags &  in ext4_map_blocks_es_recheck()
523 int ext4_map_blocks(handle_t *handle, struct inode *inode,  in ext4_map_blocks()  argument
572 		ext4_map_blocks_es_recheck(handle, inode, map,  in ext4_map_blocks()
584 		retval = ext4_ext_map_blocks(handle, inode, map, flags &  in ext4_map_blocks()
587 		retval = ext4_ind_map_blocks(handle, inode, map, flags &  in ext4_map_blocks()
661 		retval = ext4_ext_map_blocks(handle, inode, map, flags);  in ext4_map_blocks()
663 		retval = ext4_ind_map_blocks(handle, inode, map, flags);  in ext4_map_blocks()
750 				ret = ext4_jbd2_inode_add_wait(handle, inode,  in ext4_map_blocks()
753 				ret = ext4_jbd2_inode_add_write(handle, inode,  in ext4_map_blocks()
849 	handle_t *handle;  in ext4_get_block_trans()  local
859 	handle = ext4_journal_start(inode, EXT4_HT_MAP_BLOCKS, dio_credits);  in ext4_get_block_trans()
860 	if (IS_ERR(handle))  in ext4_get_block_trans()
861 		return PTR_ERR(handle);  in ext4_get_block_trans()
864 	ext4_journal_stop(handle);  in ext4_get_block_trans()
973 struct buffer_head *ext4_getblk(handle_t *handle, struct inode *inode,  in ext4_getblk()  argument
981 	J_ASSERT(handle != NULL || create == 0);  in ext4_getblk()
985 	err = ext4_map_blocks(handle, inode, &map, map_flags);  in ext4_getblk()
997 		J_ASSERT(handle != NULL);  in ext4_getblk()
1008 		err = ext4_journal_get_create_access(handle, bh);  in ext4_getblk()
1019 		err = ext4_handle_dirty_metadata(handle, inode, bh);  in ext4_getblk()
1030 struct buffer_head *ext4_bread(handle_t *handle, struct inode *inode,  in ext4_bread()  argument
1035 	bh = ext4_getblk(handle, inode, block, map_flags);  in ext4_bread()
1092 int ext4_walk_page_buffers(handle_t *handle,  in ext4_walk_page_buffers()  argument
1097 			   int (*fn)(handle_t *handle,  in ext4_walk_page_buffers()  argument
1116 		err = (*fn)(handle, bh);  in ext4_walk_page_buffers()
1147 int do_journal_get_write_access(handle_t *handle,  in do_journal_get_write_access()  argument
1166 	ret = ext4_journal_get_write_access(handle, bh);  in do_journal_get_write_access()
1168 		ret = ext4_handle_dirty_metadata(handle, NULL, bh);  in do_journal_get_write_access()
1274 	handle_t *handle;  in ext4_write_begin()  local
1333 	handle = ext4_journal_start(inode, EXT4_HT_WRITE_PAGE, needed_blocks);  in ext4_write_begin()
1334 	if (IS_ERR(handle)) {  in ext4_write_begin()
1336 		return PTR_ERR(handle);  in ext4_write_begin()
1344 		ext4_journal_stop(handle);  in ext4_write_begin()
1365 		ret = ext4_walk_page_buffers(handle, page_buffers(page),  in ext4_write_begin()
1384 			ext4_orphan_add(handle, inode);  in ext4_write_begin()
1386 		ext4_journal_stop(handle);  in ext4_write_begin()
1410 static int write_end_fn(handle_t *handle, struct buffer_head *bh)  in write_end_fn()  argument
1416 	ret = ext4_handle_dirty_metadata(handle, NULL, bh);  in write_end_fn()
1434 	handle_t *handle = ext4_journal_current_handle();  in ext4_write_end()  local
1479 		ext4_mark_inode_dirty(handle, inode);  in ext4_write_end()
1487 		ext4_orphan_add(handle, inode);  in ext4_write_end()
1489 	ret2 = ext4_journal_stop(handle);  in ext4_write_end()
1512 static void ext4_journalled_zero_new_buffers(handle_t *handle,  in ext4_journalled_zero_new_buffers()  argument
1531 					write_end_fn(handle, bh);  in ext4_journalled_zero_new_buffers()
1546 	handle_t *handle = ext4_journal_current_handle();  in ext4_journalled_write_end()  local
1561 	BUG_ON(!ext4_handle_valid(handle));  in ext4_journalled_write_end()
1575 		ext4_journalled_zero_new_buffers(handle, page, from, to);  in ext4_journalled_write_end()
1578 			ext4_journalled_zero_new_buffers(handle, page,  in ext4_journalled_write_end()
1580 		ret = ext4_walk_page_buffers(handle, page_buffers(page), from,  in ext4_journalled_write_end()
1589 	EXT4_I(inode)->i_datasync_tid = handle->h_transaction->t_tid;  in ext4_journalled_write_end()
1597 		ret2 = ext4_mark_inode_dirty(handle, inode);  in ext4_journalled_write_end()
1608 		ext4_orphan_add(handle, inode);  in ext4_journalled_write_end()
1610 	ret2 = ext4_journal_stop(handle);  in ext4_journalled_write_end()
1787 static int ext4_bh_delay_or_unwritten(handle_t *handle, struct buffer_head *bh)  in ext4_bh_delay_or_unwritten()  argument
2025 static int bget_one(handle_t *handle, struct buffer_head *bh)  in bget_one()  argument
2031 static int bput_one(handle_t *handle, struct buffer_head *bh)  in bput_one()  argument
2043 	handle_t *handle = NULL;  in __ext4_journalled_writepage()  local
2062 		ext4_walk_page_buffers(handle, page_bufs, 0, len,  in __ext4_journalled_writepage()
2073 	handle = ext4_journal_start(inode, EXT4_HT_WRITE_PAGE,  in __ext4_journalled_writepage()
2075 	if (IS_ERR(handle)) {  in __ext4_journalled_writepage()
2076 		ret = PTR_ERR(handle);  in __ext4_journalled_writepage()
2080 	BUG_ON(!ext4_handle_valid(handle));  in __ext4_journalled_writepage()
2086 		ext4_journal_stop(handle);  in __ext4_journalled_writepage()
2092 		ret = ext4_mark_inode_dirty(handle, inode);  in __ext4_journalled_writepage()
2094 		ret = ext4_walk_page_buffers(handle, page_bufs, 0, len, NULL,  in __ext4_journalled_writepage()
2097 		err = ext4_walk_page_buffers(handle, page_bufs, 0, len, NULL,  in __ext4_journalled_writepage()
2102 	EXT4_I(inode)->i_datasync_tid = handle->h_transaction->t_tid;  in __ext4_journalled_writepage()
2103 	err = ext4_journal_stop(handle);  in __ext4_journalled_writepage()
2491 static int mpage_map_one_extent(handle_t *handle, struct mpage_da_data *mpd)  in mpage_map_one_extent()  argument
2523 	err = ext4_map_blocks(handle, inode, map, get_blocks_flags);  in mpage_map_one_extent()
2527 		if (!mpd->io_submit.io_end->handle &&  in mpage_map_one_extent()
2528 		    ext4_handle_valid(handle)) {  in mpage_map_one_extent()
2529 			mpd->io_submit.io_end->handle = handle->h_rsv_handle;  in mpage_map_one_extent()
2530 			handle->h_rsv_handle = NULL;  in mpage_map_one_extent()
2559 static int mpage_map_and_submit_extent(handle_t *handle,  in mpage_map_and_submit_extent()  argument
2572 		err = mpage_map_one_extent(handle, mpd);  in mpage_map_and_submit_extent()
2633 		err2 = ext4_mark_inode_dirty(handle, inode);  in mpage_map_and_submit_extent()
2787 	handle_t *handle = NULL;  in ext4_writepages()  local
2838 		handle = ext4_journal_start(inode, EXT4_HT_INODE, 1);  in ext4_writepages()
2839 		if (IS_ERR(handle)) {  in ext4_writepages()
2840 			ret = PTR_ERR(handle);  in ext4_writepages()
2845 		ext4_destroy_inline_data(handle, inode);  in ext4_writepages()
2846 		ext4_journal_stop(handle);  in ext4_writepages()
2922 		handle = ext4_journal_start_with_reserve(inode,  in ext4_writepages()
2924 		if (IS_ERR(handle)) {  in ext4_writepages()
2925 			ret = PTR_ERR(handle);  in ext4_writepages()
2940 				ret = mpage_map_and_submit_extent(handle, &mpd,  in ext4_writepages()
2962 		if (!ext4_handle_valid(handle) || handle->h_sync == 0) {  in ext4_writepages()
2963 			ext4_journal_stop(handle);  in ext4_writepages()
2964 			handle = NULL;  in ext4_writepages()
2979 		if (handle) {  in ext4_writepages()
2981 			ext4_journal_stop(handle);  in ext4_writepages()
3100 	handle_t *handle;  in ext4_da_write_begin()  local
3156 	handle = ext4_journal_start(inode, EXT4_HT_WRITE_PAGE,  in ext4_da_write_begin()
3158 	if (IS_ERR(handle)) {  in ext4_da_write_begin()
3160 		return PTR_ERR(handle);  in ext4_da_write_begin()
3168 		ext4_journal_stop(handle);  in ext4_da_write_begin()
3182 		ext4_journal_stop(handle);  in ext4_da_write_begin()
3233 	handle_t *handle = ext4_journal_current_handle();  in ext4_da_write_end()  local
3261 			ext4_mark_inode_dirty(handle, inode);  in ext4_da_write_end()
3277 	ret2 = ext4_journal_stop(handle);  in ext4_da_write_end()
3553 		handle_t *handle;  in ext4_iomap_begin()  local
3567 		handle = ext4_journal_start(inode, EXT4_HT_MAP_BLOCKS,  in ext4_iomap_begin()
3569 		if (IS_ERR(handle))  in ext4_iomap_begin()
3570 			return PTR_ERR(handle);  in ext4_iomap_begin()
3572 		ret = ext4_map_blocks(handle, inode, &map,  in ext4_iomap_begin()
3575 			ext4_journal_stop(handle);  in ext4_iomap_begin()
3595 			err = ext4_orphan_add(handle, inode);  in ext4_iomap_begin()
3597 				ext4_journal_stop(handle);  in ext4_iomap_begin()
3601 		ext4_journal_stop(handle);  in ext4_iomap_begin()
3647 	handle_t *handle;  in ext4_iomap_end()  local
3654 	handle = ext4_journal_start(inode, EXT4_HT_INODE, 2);  in ext4_iomap_end()
3655 	if (IS_ERR(handle)) {  in ext4_iomap_end()
3656 		ret = PTR_ERR(handle);  in ext4_iomap_end()
3660 		ext4_mark_inode_dirty(handle, inode);  in ext4_iomap_end()
3679 		ext4_orphan_del(handle, inode);  in ext4_iomap_end()
3680 	ext4_journal_stop(handle);  in ext4_iomap_end()
3762 	handle_t *handle;  in ext4_direct_IO_write()  local
3766 		handle = ext4_journal_start(inode, EXT4_HT_INODE, 2);  in ext4_direct_IO_write()
3767 		if (IS_ERR(handle)) {  in ext4_direct_IO_write()
3768 			ret = PTR_ERR(handle);  in ext4_direct_IO_write()
3771 		ret = ext4_orphan_add(handle, inode);  in ext4_direct_IO_write()
3773 			ext4_journal_stop(handle);  in ext4_direct_IO_write()
3778 		ext4_journal_stop(handle);  in ext4_direct_IO_write()
3861 		handle = ext4_journal_start(inode, EXT4_HT_INODE, 2);  in ext4_direct_IO_write()
3862 		if (IS_ERR(handle)) {  in ext4_direct_IO_write()
3874 				ret = PTR_ERR(handle);  in ext4_direct_IO_write()
3881 			ext4_orphan_del(handle, inode);  in ext4_direct_IO_write()
3895 				ext4_mark_inode_dirty(handle, inode);  in ext4_direct_IO_write()
3898 		err = ext4_journal_stop(handle);  in ext4_direct_IO_write()
4109 static int __ext4_block_zero_page_range(handle_t *handle,  in __ext4_block_zero_page_range()  argument
4175 		err = ext4_journal_get_write_access(handle, bh);  in __ext4_block_zero_page_range()
4183 		err = ext4_handle_dirty_metadata(handle, inode, bh);  in __ext4_block_zero_page_range()
4188 			err = ext4_jbd2_inode_add_write(handle, inode, from,  in __ext4_block_zero_page_range()
4205 static int ext4_block_zero_page_range(handle_t *handle,  in ext4_block_zero_page_range()  argument
4224 	return __ext4_block_zero_page_range(handle, mapping, from, length);  in ext4_block_zero_page_range()
4233 static int ext4_block_truncate_page(handle_t *handle,  in ext4_block_truncate_page()  argument
4248 	return ext4_block_zero_page_range(handle, mapping, from, length);  in ext4_block_truncate_page()
4251 int ext4_zero_partial_blocks(handle_t *handle, struct inode *inode,  in ext4_zero_partial_blocks()  argument
4270 		err = ext4_block_zero_page_range(handle, mapping,  in ext4_zero_partial_blocks()
4276 		err = ext4_block_zero_page_range(handle, mapping,  in ext4_zero_partial_blocks()
4283 		err = ext4_block_zero_page_range(handle, mapping,  in ext4_zero_partial_blocks()
4309 	handle_t *handle;  in ext4_update_disksize_before_punch()  local
4319 	handle = ext4_journal_start(inode, EXT4_HT_MISC, 1);  in ext4_update_disksize_before_punch()
4320 	if (IS_ERR(handle))  in ext4_update_disksize_before_punch()
4321 		return PTR_ERR(handle);  in ext4_update_disksize_before_punch()
4323 	ext4_mark_inode_dirty(handle, inode);  in ext4_update_disksize_before_punch()
4324 	ext4_journal_stop(handle);  in ext4_update_disksize_before_punch()
4377 	handle_t *handle;  in ext4_punch_hole()  local
4462 	handle = ext4_journal_start(inode, EXT4_HT_TRUNCATE, credits);  in ext4_punch_hole()
4463 	if (IS_ERR(handle)) {  in ext4_punch_hole()
4464 		ret = PTR_ERR(handle);  in ext4_punch_hole()
4469 	ret = ext4_zero_partial_blocks(handle, inode, offset,  in ext4_punch_hole()
4495 			ret = ext4_ind_remove_space(handle, inode, first_block,  in ext4_punch_hole()
4501 		ext4_handle_sync(handle);  in ext4_punch_hole()
4504 	ext4_mark_inode_dirty(handle, inode);  in ext4_punch_hole()
4506 		ext4_update_inode_fsync_trans(handle, inode, 1);  in ext4_punch_hole()
4508 	ext4_journal_stop(handle);  in ext4_punch_hole()
4574 	handle_t *handle;  in ext4_truncate()  local
4614 	handle = ext4_journal_start(inode, EXT4_HT_TRUNCATE, credits);  in ext4_truncate()
4615 	if (IS_ERR(handle)) {  in ext4_truncate()
4616 		err = PTR_ERR(handle);  in ext4_truncate()
4621 		ext4_block_truncate_page(handle, mapping, inode->i_size);  in ext4_truncate()
4632 	err = ext4_orphan_add(handle, inode);  in ext4_truncate()
4641 		err = ext4_ext_truncate(handle, inode);  in ext4_truncate()
4643 		ext4_ind_truncate(handle, inode);  in ext4_truncate()
4650 		ext4_handle_sync(handle);  in ext4_truncate()
4661 		ext4_orphan_del(handle, inode);  in ext4_truncate()
4664 	ext4_mark_inode_dirty(handle, inode);  in ext4_truncate()
4665 	ext4_journal_stop(handle);  in ext4_truncate()
5288 static int ext4_inode_blocks_set(handle_t *handle,  in ext4_inode_blocks_set()  argument
5398 static int ext4_do_update_inode(handle_t *handle,  in ext4_do_update_inode()  argument
5419 	err = ext4_inode_blocks_set(handle, raw_inode, ei);  in ext4_do_update_inode()
5518 	err = ext4_handle_dirty_metadata(handle, NULL, bh);  in ext4_do_update_inode()
5524 		err = ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh);  in ext4_do_update_inode()
5528 		ext4_handle_sync(handle);  in ext4_do_update_inode()
5529 		err = ext4_handle_dirty_super(handle, sb);  in ext4_do_update_inode()
5531 	ext4_update_inode_fsync_trans(handle, inode, need_datasync);  in ext4_do_update_inode()
5729 		handle_t *handle;  in ext4_setattr()  local
5733 		handle = ext4_journal_start(inode, EXT4_HT_QUOTA,  in ext4_setattr()
5736 		if (IS_ERR(handle)) {  in ext4_setattr()
5737 			error = PTR_ERR(handle);  in ext4_setattr()
5749 			ext4_journal_stop(handle);  in ext4_setattr()
5758 		error = ext4_mark_inode_dirty(handle, inode);  in ext4_setattr()
5759 		ext4_journal_stop(handle);  in ext4_setattr()
5763 		handle_t *handle;  in ext4_setattr()  local
5803 			handle = ext4_journal_start(inode, EXT4_HT_INODE, 3);  in ext4_setattr()
5804 			if (IS_ERR(handle)) {  in ext4_setattr()
5805 				error = PTR_ERR(handle);  in ext4_setattr()
5808 			if (ext4_handle_valid(handle) && shrink) {  in ext4_setattr()
5809 				error = ext4_orphan_add(handle, inode);  in ext4_setattr()
5823 			rc = ext4_mark_inode_dirty(handle, inode);  in ext4_setattr()
5836 			ext4_journal_stop(handle);  in ext4_setattr()
6055 int ext4_mark_iloc_dirty(handle_t *handle,  in ext4_mark_iloc_dirty()  argument
6071 	err = ext4_do_update_inode(handle, inode, iloc);  in ext4_mark_iloc_dirty()
6082 ext4_reserve_inode_write(handle_t *handle, struct inode *inode,  in ext4_reserve_inode_write()  argument
6093 		err = ext4_journal_get_write_access(handle, iloc->bh);  in ext4_reserve_inode_write()
6106 				     handle_t *handle, int *no_expand)  in __ext4_expand_extra_isize()  argument
6151 					   raw_inode, handle);  in __ext4_expand_extra_isize()
6169 					  handle_t *handle)  in ext4_try_to_expand_extra_isize()  argument
6186 	if (ext4_handle_valid(handle) &&  in ext4_try_to_expand_extra_isize()
6187 	    jbd2_journal_extend(handle,  in ext4_try_to_expand_extra_isize()
6195 					  handle, &no_expand);  in ext4_try_to_expand_extra_isize()
6205 	handle_t *handle;  in ext4_expand_extra_isize()  local
6214 	handle = ext4_journal_start(inode, EXT4_HT_INODE,  in ext4_expand_extra_isize()
6216 	if (IS_ERR(handle)) {  in ext4_expand_extra_isize()
6217 		error = PTR_ERR(handle);  in ext4_expand_extra_isize()
6225 	error = ext4_journal_get_write_access(handle, iloc->bh);  in ext4_expand_extra_isize()
6232 					  handle, &no_expand);  in ext4_expand_extra_isize()
6234 	rc = ext4_mark_iloc_dirty(handle, inode, iloc);  in ext4_expand_extra_isize()
6240 	ext4_journal_stop(handle);  in ext4_expand_extra_isize()
6257 int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode)  in ext4_mark_inode_dirty()  argument
6265 	err = ext4_reserve_inode_write(handle, inode, &iloc);  in ext4_mark_inode_dirty()
6271 					       iloc, handle);  in ext4_mark_inode_dirty()
6273 	return ext4_mark_iloc_dirty(handle, inode, &iloc);  in ext4_mark_inode_dirty()
6296 	handle_t *handle;  in ext4_dirty_inode()  local
6300 	handle = ext4_journal_start(inode, EXT4_HT_INODE, 2);  in ext4_dirty_inode()
6301 	if (IS_ERR(handle))  in ext4_dirty_inode()
6304 	ext4_mark_inode_dirty(handle, inode);  in ext4_dirty_inode()
6306 	ext4_journal_stop(handle);  in ext4_dirty_inode()
6314 	handle_t *handle;  in ext4_change_inode_journal_flag()  local
6386 	handle = ext4_journal_start(inode, EXT4_HT_INODE, 1);  in ext4_change_inode_journal_flag()
6387 	if (IS_ERR(handle))  in ext4_change_inode_journal_flag()
6388 		return PTR_ERR(handle);  in ext4_change_inode_journal_flag()
6390 	err = ext4_mark_inode_dirty(handle, inode);  in ext4_change_inode_journal_flag()
6391 	ext4_handle_sync(handle);  in ext4_change_inode_journal_flag()
6392 	ext4_journal_stop(handle);  in ext4_change_inode_journal_flag()
6398 static int ext4_bh_unmapped(handle_t *handle, struct buffer_head *bh)  in ext4_bh_unmapped()  argument
6414 	handle_t *handle;  in ext4_page_mkwrite()  local
6476 	handle = ext4_journal_start(inode, EXT4_HT_WRITE_PAGE,  in ext4_page_mkwrite()
6478 	if (IS_ERR(handle)) {  in ext4_page_mkwrite()
6484 		if (ext4_walk_page_buffers(handle, page_buffers(page), 0,  in ext4_page_mkwrite()
6488 			ext4_journal_stop(handle);  in ext4_page_mkwrite()
6493 	ext4_journal_stop(handle);  in ext4_page_mkwrite()