135 static int ext4_bh_delay_or_unwritten(handle_t *handle, struct buffer_head *bh);
158 int ext4_truncate_restart_trans(handle_t *handle, struct inode *inode,  in ext4_truncate_restart_trans()  argument
170 	jbd_debug(2, "restarting handle %p\n", handle);  in ext4_truncate_restart_trans()
172 	ret = ext4_journal_restart(handle, nblocks);  in ext4_truncate_restart_trans()
184 	handle_t *handle;  in ext4_evict_inode()  local
238 	handle = ext4_journal_start(inode, EXT4_HT_TRUNCATE,  in ext4_evict_inode()
240 	if (IS_ERR(handle)) {  in ext4_evict_inode()
241 		ext4_std_error(inode->i_sb, PTR_ERR(handle));  in ext4_evict_inode()
253 		ext4_handle_sync(handle);  in ext4_evict_inode()
255 	err = ext4_mark_inode_dirty(handle, inode);  in ext4_evict_inode()
270 	if (!ext4_handle_has_enough_credits(handle, 3)) {  in ext4_evict_inode()
271 		err = ext4_journal_extend(handle, 3);  in ext4_evict_inode()
273 			err = ext4_journal_restart(handle, 3);  in ext4_evict_inode()
278 			ext4_journal_stop(handle);  in ext4_evict_inode()
293 	ext4_orphan_del(handle, inode);  in ext4_evict_inode()
303 	if (ext4_mark_inode_dirty(handle, inode))  in ext4_evict_inode()
307 		ext4_free_inode(handle, inode);  in ext4_evict_inode()
308 	ext4_journal_stop(handle);  in ext4_evict_inode()
390 static void ext4_map_blocks_es_recheck(handle_t *handle,  in ext4_map_blocks_es_recheck()  argument
409 		retval = ext4_ext_map_blocks(handle, inode, map, flags &  in ext4_map_blocks_es_recheck()
412 		retval = ext4_ind_map_blocks(handle, inode, map, flags &  in ext4_map_blocks_es_recheck()
458 int ext4_map_blocks(handle_t *handle, struct inode *inode,  in ext4_map_blocks()  argument
502 		ext4_map_blocks_es_recheck(handle, inode, map,  in ext4_map_blocks()
515 		retval = ext4_ext_map_blocks(handle, inode, map, flags &  in ext4_map_blocks()
518 		retval = ext4_ind_map_blocks(handle, inode, map, flags &  in ext4_map_blocks()
593 		retval = ext4_ext_map_blocks(handle, inode, map, flags);  in ext4_map_blocks()
595 		retval = ext4_ind_map_blocks(handle, inode, map, flags);  in ext4_map_blocks()
694 	handle_t *handle = ext4_journal_current_handle();  in _ext4_get_block()  local
705 	if (flags && !(flags & EXT4_GET_BLOCKS_NO_LOCK) && !handle) {  in _ext4_get_block()
710 		handle = ext4_journal_start(inode, EXT4_HT_MAP_BLOCKS,  in _ext4_get_block()
712 		if (IS_ERR(handle)) {  in _ext4_get_block()
713 			ret = PTR_ERR(handle);  in _ext4_get_block()
719 	ret = ext4_map_blocks(handle, inode, &map, flags);  in _ext4_get_block()
741 		ext4_journal_stop(handle);  in _ext4_get_block()
755 struct buffer_head *ext4_getblk(handle_t *handle, struct inode *inode,  in ext4_getblk()  argument
763 	J_ASSERT(handle != NULL || create == 0);  in ext4_getblk()
767 	err = ext4_map_blocks(handle, inode, &map, map_flags);  in ext4_getblk()
779 		J_ASSERT(handle != NULL);  in ext4_getblk()
790 		err = ext4_journal_get_create_access(handle, bh);  in ext4_getblk()
801 		err = ext4_handle_dirty_metadata(handle, inode, bh);  in ext4_getblk()
812 struct buffer_head *ext4_bread(handle_t *handle, struct inode *inode,  in ext4_bread()  argument
817 	bh = ext4_getblk(handle, inode, block, map_flags);  in ext4_bread()
830 int ext4_walk_page_buffers(handle_t *handle,  in ext4_walk_page_buffers()  argument
835 			   int (*fn)(handle_t *handle,  in ext4_walk_page_buffers()  argument
854 		err = (*fn)(handle, bh);  in ext4_walk_page_buffers()
885 int do_journal_get_write_access(handle_t *handle,  in do_journal_get_write_access()  argument
904 	ret = ext4_journal_get_write_access(handle, bh);  in do_journal_get_write_access()
906 		ret = ext4_handle_dirty_metadata(handle, NULL, bh);  in do_journal_get_write_access()
1007 	handle_t *handle;  in ext4_write_begin()  local
1046 	handle = ext4_journal_start(inode, EXT4_HT_WRITE_PAGE, needed_blocks);  in ext4_write_begin()
1047 	if (IS_ERR(handle)) {  in ext4_write_begin()
1049 		return PTR_ERR(handle);  in ext4_write_begin()
1057 		ext4_journal_stop(handle);  in ext4_write_begin()
1077 		ret = ext4_walk_page_buffers(handle, page_buffers(page),  in ext4_write_begin()
1093 			ext4_orphan_add(handle, inode);  in ext4_write_begin()
1095 		ext4_journal_stop(handle);  in ext4_write_begin()
1119 static int write_end_fn(handle_t *handle, struct buffer_head *bh)  in write_end_fn()  argument
1125 	ret = ext4_handle_dirty_metadata(handle, NULL, bh);  in write_end_fn()
1143 	handle_t *handle = ext4_journal_current_handle();  in ext4_write_end()  local
1151 		ret = ext4_jbd2_file_inode(handle, inode);  in ext4_write_end()
1185 		ext4_mark_inode_dirty(handle, inode);  in ext4_write_end()
1192 		ext4_orphan_add(handle, inode);  in ext4_write_end()
1194 	ret2 = ext4_journal_stop(handle);  in ext4_write_end()
1249 	handle_t *handle = ext4_journal_current_handle();  in ext4_journalled_write_end()  local
1261 	BUG_ON(!ext4_handle_valid(handle));  in ext4_journalled_write_end()
1273 		ret = ext4_walk_page_buffers(handle, page_buffers(page), from,  in ext4_journalled_write_end()
1280 	EXT4_I(inode)->i_datasync_tid = handle->h_transaction->t_tid;  in ext4_journalled_write_end()
1288 		ret2 = ext4_mark_inode_dirty(handle, inode);  in ext4_journalled_write_end()
1298 		ext4_orphan_add(handle, inode);  in ext4_journalled_write_end()
1300 	ret2 = ext4_journal_stop(handle);  in ext4_journalled_write_end()
1527 static int ext4_bh_delay_or_unwritten(handle_t *handle, struct buffer_head *bh)  in ext4_bh_delay_or_unwritten()  argument
1715 static int bget_one(handle_t *handle, struct buffer_head *bh)  in bget_one()  argument
1721 static int bput_one(handle_t *handle, struct buffer_head *bh)  in bput_one()  argument
1733 	handle_t *handle = NULL;  in __ext4_journalled_writepage()  local
1752 		ext4_walk_page_buffers(handle, page_bufs, 0, len,  in __ext4_journalled_writepage()
1763 	handle = ext4_journal_start(inode, EXT4_HT_WRITE_PAGE,  in __ext4_journalled_writepage()
1765 	if (IS_ERR(handle)) {  in __ext4_journalled_writepage()
1766 		ret = PTR_ERR(handle);  in __ext4_journalled_writepage()
1770 	BUG_ON(!ext4_handle_valid(handle));  in __ext4_journalled_writepage()
1776 		ext4_journal_stop(handle);  in __ext4_journalled_writepage()
1783 		ret = ext4_journal_get_write_access(handle, inode_bh);  in __ext4_journalled_writepage()
1785 		err = ext4_handle_dirty_metadata(handle, inode, inode_bh);  in __ext4_journalled_writepage()
1788 		ret = ext4_walk_page_buffers(handle, page_bufs, 0, len, NULL,  in __ext4_journalled_writepage()
1791 		err = ext4_walk_page_buffers(handle, page_bufs, 0, len, NULL,  in __ext4_journalled_writepage()
1796 	EXT4_I(inode)->i_datasync_tid = handle->h_transaction->t_tid;  in __ext4_journalled_writepage()
1797 	err = ext4_journal_stop(handle);  in __ext4_journalled_writepage()
2150 static int mpage_map_one_extent(handle_t *handle, struct mpage_da_data *mpd)  in mpage_map_one_extent()  argument
2181 	err = ext4_map_blocks(handle, inode, map, get_blocks_flags);  in mpage_map_one_extent()
2185 		if (!mpd->io_submit.io_end->handle &&  in mpage_map_one_extent()
2186 		    ext4_handle_valid(handle)) {  in mpage_map_one_extent()
2187 			mpd->io_submit.io_end->handle = handle->h_rsv_handle;  in mpage_map_one_extent()
2188 			handle->h_rsv_handle = NULL;  in mpage_map_one_extent()
2224 static int mpage_map_and_submit_extent(handle_t *handle,  in mpage_map_and_submit_extent()  argument
2237 		err = mpage_map_one_extent(handle, mpd);  in mpage_map_and_submit_extent()
2296 		err2 = ext4_mark_inode_dirty(handle, inode);  in mpage_map_and_submit_extent()
2454 	handle_t *handle = NULL;  in ext4_writepages()  local
2512 		handle = ext4_journal_start(inode, EXT4_HT_INODE, 1);  in ext4_writepages()
2513 		if (IS_ERR(handle)) {  in ext4_writepages()
2514 			ret = PTR_ERR(handle);  in ext4_writepages()
2519 		ext4_destroy_inline_data(handle, inode);  in ext4_writepages()
2520 		ext4_journal_stop(handle);  in ext4_writepages()
2564 		handle = ext4_journal_start_with_reserve(inode,  in ext4_writepages()
2566 		if (IS_ERR(handle)) {  in ext4_writepages()
2567 			ret = PTR_ERR(handle);  in ext4_writepages()
2580 				ret = mpage_map_and_submit_extent(handle, &mpd,  in ext4_writepages()
2592 		ext4_journal_stop(handle);  in ext4_writepages()
2691 	handle_t *handle;  in ext4_da_write_begin()  local
2733 	handle = ext4_journal_start(inode, EXT4_HT_WRITE_PAGE,  in ext4_da_write_begin()
2735 	if (IS_ERR(handle)) {  in ext4_da_write_begin()
2737 		return PTR_ERR(handle);  in ext4_da_write_begin()
2745 		ext4_journal_stop(handle);  in ext4_da_write_begin()
2759 		ext4_journal_stop(handle);  in ext4_da_write_begin()
2810 	handle_t *handle = ext4_journal_current_handle();  in ext4_da_write_end()  local
2837 			ext4_mark_inode_dirty(handle, inode);  in ext4_da_write_end()
2853 	ret2 = ext4_journal_stop(handle);  in ext4_da_write_end()
3404 static int __ext4_block_zero_page_range(handle_t *handle,  in __ext4_block_zero_page_range()  argument
3471 		err = ext4_journal_get_write_access(handle, bh);  in __ext4_block_zero_page_range()
3479 		err = ext4_handle_dirty_metadata(handle, inode, bh);  in __ext4_block_zero_page_range()
3484 			err = ext4_jbd2_file_inode(handle, inode);  in __ext4_block_zero_page_range()
3500 static int ext4_block_zero_page_range(handle_t *handle,  in ext4_block_zero_page_range()  argument
3517 	return __ext4_block_zero_page_range(handle, mapping, from, length);  in ext4_block_zero_page_range()
3526 static int ext4_block_truncate_page(handle_t *handle,  in ext4_block_truncate_page()  argument
3537 	return ext4_block_zero_page_range(handle, mapping, from, length);  in ext4_block_truncate_page()
3540 int ext4_zero_partial_blocks(handle_t *handle, struct inode *inode,  in ext4_zero_partial_blocks()  argument
3559 		err = ext4_block_zero_page_range(handle, mapping,  in ext4_zero_partial_blocks()
3565 		err = ext4_block_zero_page_range(handle, mapping,  in ext4_zero_partial_blocks()
3572 		err = ext4_block_zero_page_range(handle, mapping,  in ext4_zero_partial_blocks()
3598 	handle_t *handle;  in ext4_update_disksize_before_punch()  local
3608 	handle = ext4_journal_start(inode, EXT4_HT_MISC, 1);  in ext4_update_disksize_before_punch()
3609 	if (IS_ERR(handle))  in ext4_update_disksize_before_punch()
3610 		return PTR_ERR(handle);  in ext4_update_disksize_before_punch()
3612 	ext4_mark_inode_dirty(handle, inode);  in ext4_update_disksize_before_punch()
3613 	ext4_journal_stop(handle);  in ext4_update_disksize_before_punch()
3635 	handle_t *handle;  in ext4_punch_hole()  local
3708 	handle = ext4_journal_start(inode, EXT4_HT_TRUNCATE, credits);  in ext4_punch_hole()
3709 	if (IS_ERR(handle)) {  in ext4_punch_hole()
3710 		ret = PTR_ERR(handle);  in ext4_punch_hole()
3715 	ret = ext4_zero_partial_blocks(handle, inode, offset,  in ext4_punch_hole()
3742 		ret = ext4_ind_remove_space(handle, inode, first_block,  in ext4_punch_hole()
3747 		ext4_handle_sync(handle);  in ext4_punch_hole()
3750 	ext4_mark_inode_dirty(handle, inode);  in ext4_punch_hole()
3752 	ext4_journal_stop(handle);  in ext4_punch_hole()
3818 	handle_t *handle;  in ext4_truncate()  local
3857 	handle = ext4_journal_start(inode, EXT4_HT_TRUNCATE, credits);  in ext4_truncate()
3858 	if (IS_ERR(handle)) {  in ext4_truncate()
3859 		ext4_std_error(inode->i_sb, PTR_ERR(handle));  in ext4_truncate()
3864 		ext4_block_truncate_page(handle, mapping, inode->i_size);  in ext4_truncate()
3875 	if (ext4_orphan_add(handle, inode))  in ext4_truncate()
3883 		ext4_ext_truncate(handle, inode);  in ext4_truncate()
3885 		ext4_ind_truncate(handle, inode);  in ext4_truncate()
3890 		ext4_handle_sync(handle);  in ext4_truncate()
3901 		ext4_orphan_del(handle, inode);  in ext4_truncate()
3904 	ext4_mark_inode_dirty(handle, inode);  in ext4_truncate()
3905 	ext4_journal_stop(handle);  in ext4_truncate()
4382 static int ext4_inode_blocks_set(handle_t *handle,  in ext4_inode_blocks_set()  argument
4492 static int ext4_do_update_inode(handle_t *handle,  in ext4_do_update_inode()  argument
4545 	err = ext4_inode_blocks_set(handle, raw_inode, ei);  in ext4_do_update_inode()
4600 	rc = ext4_handle_dirty_metadata(handle, NULL, bh);  in ext4_do_update_inode()
4606 		err = ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh);  in ext4_do_update_inode()
4611 		ext4_handle_sync(handle);  in ext4_do_update_inode()
4612 		err = ext4_handle_dirty_super(handle, sb);  in ext4_do_update_inode()
4614 	ext4_update_inode_fsync_trans(handle, inode, need_datasync);  in ext4_do_update_inode()
4784 		handle_t *handle;  in ext4_setattr()  local
4788 		handle = ext4_journal_start(inode, EXT4_HT_QUOTA,  in ext4_setattr()
4791 		if (IS_ERR(handle)) {  in ext4_setattr()
4792 			error = PTR_ERR(handle);  in ext4_setattr()
4797 			ext4_journal_stop(handle);  in ext4_setattr()
4806 		error = ext4_mark_inode_dirty(handle, inode);  in ext4_setattr()
4807 		ext4_journal_stop(handle);  in ext4_setattr()
4811 		handle_t *handle;  in ext4_setattr()  local
4835 			handle = ext4_journal_start(inode, EXT4_HT_INODE, 3);  in ext4_setattr()
4836 			if (IS_ERR(handle)) {  in ext4_setattr()
4837 				error = PTR_ERR(handle);  in ext4_setattr()
4840 			if (ext4_handle_valid(handle) && shrink) {  in ext4_setattr()
4841 				error = ext4_orphan_add(handle, inode);  in ext4_setattr()
4854 			rc = ext4_mark_inode_dirty(handle, inode);  in ext4_setattr()
4865 			ext4_journal_stop(handle);  in ext4_setattr()
5051 int ext4_mark_iloc_dirty(handle_t *handle,  in ext4_mark_iloc_dirty()  argument
5063 	err = ext4_do_update_inode(handle, inode, iloc);  in ext4_mark_iloc_dirty()
5074 ext4_reserve_inode_write(handle_t *handle, struct inode *inode,  in ext4_reserve_inode_write()  argument
5082 		err = ext4_journal_get_write_access(handle, iloc->bh);  in ext4_reserve_inode_write()
5099 				   handle_t *handle)  in ext4_expand_extra_isize()  argument
5122 					  raw_inode, handle);  in ext4_expand_extra_isize()
5138 int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode)  in ext4_mark_inode_dirty()  argument
5147 	err = ext4_reserve_inode_write(handle, inode, &iloc);  in ext4_mark_inode_dirty()
5150 	if (ext4_handle_valid(handle) &&  in ext4_mark_inode_dirty()
5160 		if ((jbd2_journal_extend(handle,  in ext4_mark_inode_dirty()
5164 						      iloc, handle);  in ext4_mark_inode_dirty()
5180 	return ext4_mark_iloc_dirty(handle, inode, &iloc);  in ext4_mark_inode_dirty()
5203 	handle_t *handle;  in ext4_dirty_inode()  local
5207 	handle = ext4_journal_start(inode, EXT4_HT_INODE, 2);  in ext4_dirty_inode()
5208 	if (IS_ERR(handle))  in ext4_dirty_inode()
5211 	ext4_mark_inode_dirty(handle, inode);  in ext4_dirty_inode()
5213 	ext4_journal_stop(handle);  in ext4_dirty_inode()
5226 static int ext4_pin_inode(handle_t *handle, struct inode *inode)
5231 	if (handle) {
5235 			err = jbd2_journal_get_write_access(handle, iloc.bh);
5237 				err = ext4_handle_dirty_metadata(handle,
5251 	handle_t *handle;  in ext4_change_inode_journal_flag()  local
5313 	handle = ext4_journal_start(inode, EXT4_HT_INODE, 1);  in ext4_change_inode_journal_flag()
5314 	if (IS_ERR(handle))  in ext4_change_inode_journal_flag()
5315 		return PTR_ERR(handle);  in ext4_change_inode_journal_flag()
5317 	err = ext4_mark_inode_dirty(handle, inode);  in ext4_change_inode_journal_flag()
5318 	ext4_handle_sync(handle);  in ext4_change_inode_journal_flag()
5319 	ext4_journal_stop(handle);  in ext4_change_inode_journal_flag()
5325 static int ext4_bh_unmapped(handle_t *handle, struct buffer_head *bh)  in ext4_bh_unmapped()  argument
5339 	handle_t *handle;  in ext4_page_mkwrite()  local
5393 	handle = ext4_journal_start(inode, EXT4_HT_WRITE_PAGE,  in ext4_page_mkwrite()
5395 	if (IS_ERR(handle)) {  in ext4_page_mkwrite()
5401 		if (ext4_walk_page_buffers(handle, page_buffers(page), 0,  in ext4_page_mkwrite()
5405 			ext4_journal_stop(handle);  in ext4_page_mkwrite()
5410 	ext4_journal_stop(handle);  in ext4_page_mkwrite()