58 int ext3_forget(handle_t *handle, int is_metadata, struct inode *inode,  in ext3_forget()  argument
82 			return ext3_journal_forget(handle, bh);  in ext3_forget()
91 	err = ext3_journal_revoke(handle, blocknr, bh);  in ext3_forget()
154 static int try_to_extend_transaction(handle_t *handle, struct inode *inode)  in try_to_extend_transaction()  argument
156 	if (handle->h_buffer_credits > EXT3_RESERVE_TRANS_BLOCKS)  in try_to_extend_transaction()
158 	if (!ext3_journal_extend(handle, blocks_for_truncate(inode)))  in try_to_extend_transaction()
168 static int truncate_restart_transaction(handle_t *handle, struct inode *inode)  in truncate_restart_transaction()  argument
172 	jbd_debug(2, "restarting handle %p\n", handle);  in truncate_restart_transaction()
180 	ret = ext3_journal_restart(handle, blocks_for_truncate(inode));  in truncate_restart_transaction()
192 	handle_t *handle;  in ext3_evict_inode()  local
242 	handle = start_transaction(inode);  in ext3_evict_inode()
243 	if (IS_ERR(handle)) {  in ext3_evict_inode()
254 		handle->h_sync = 1;  in ext3_evict_inode()
264 	ext3_orphan_del(handle, inode);  in ext3_evict_inode()
274 	if (ext3_mark_inode_dirty(handle, inode)) {  in ext3_evict_inode()
279 		ext3_xattr_delete_inode(handle, inode);  in ext3_evict_inode()
283 		ext3_free_inode(handle, inode);  in ext3_evict_inode()
285 	ext3_journal_stop(handle);  in ext3_evict_inode()
575 static int ext3_alloc_blocks(handle_t *handle, struct inode *inode,  in ext3_alloc_blocks()  argument
598 		current_block = ext3_new_blocks(handle,inode,goal,&count,err);  in ext3_alloc_blocks()
622 		ext3_free_blocks(handle, inode, new_blocks[i], 1);  in ext3_alloc_blocks()
653 static int ext3_alloc_branch(handle_t *handle, struct inode *inode,  in ext3_alloc_branch()  argument
665 	num = ext3_alloc_blocks(handle, inode, goal, indirect_blks,  in ext3_alloc_branch()
688 		err = ext3_journal_get_create_access(handle, bh);  in ext3_alloc_branch()
714 		err = ext3_journal_dirty_metadata(handle, bh);  in ext3_alloc_branch()
724 		ext3_journal_forget(handle, branch[i].bh);  in ext3_alloc_branch()
727 		ext3_free_blocks(handle, inode, new_blocks[i], 1);  in ext3_alloc_branch()
729 	ext3_free_blocks(handle, inode, new_blocks[i], num);  in ext3_alloc_branch()
747 static int ext3_splice_branch(handle_t *handle, struct inode *inode,  in ext3_splice_branch()  argument
765 		err = ext3_journal_get_write_access(handle, where->bh);  in ext3_splice_branch()
798 		ext3_mark_inode_dirty(handle, inode);  in ext3_splice_branch()
801 	atomic_set(&ei->i_datasync_tid, handle->h_transaction->t_tid);  in ext3_splice_branch()
815 		err = ext3_journal_dirty_metadata(handle, where->bh);  in ext3_splice_branch()
830 		ext3_journal_forget(handle, where[i].bh);  in ext3_splice_branch()
831 		ext3_free_blocks(handle,inode,le32_to_cpu(where[i-1].key),1);  in ext3_splice_branch()
833 	ext3_free_blocks(handle, inode, le32_to_cpu(where[num].key), blks);  in ext3_splice_branch()
857 int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,  in ext3_get_blocks_handle()  argument
876 	J_ASSERT(handle != NULL || create == 0);  in ext3_get_blocks_handle()
971 	err = ext3_alloc_branch(handle, inode, indirect_blks, &count, goal,  in ext3_get_blocks_handle()
982 		err = ext3_splice_branch(handle, inode, iblock,  in ext3_get_blocks_handle()
1024 	handle_t *handle = ext3_journal_current_handle();  in ext3_get_block()  local
1028 	if (create && !handle) {	/* Direct IO write... */  in ext3_get_block()
1031 		handle = ext3_journal_start(inode, DIO_CREDITS +  in ext3_get_block()
1033 		if (IS_ERR(handle)) {  in ext3_get_block()
1034 			ret = PTR_ERR(handle);  in ext3_get_block()
1040 	ret = ext3_get_blocks_handle(handle, inode, iblock,  in ext3_get_block()
1047 		ext3_journal_stop(handle);  in ext3_get_block()
1062 struct buffer_head *ext3_getblk(handle_t *handle, struct inode *inode,  in ext3_getblk()  argument
1068 	J_ASSERT(handle != NULL || create == 0);  in ext3_getblk()
1073 	err = ext3_get_blocks_handle(handle, inode, block, 1,  in ext3_getblk()
1093 			J_ASSERT(handle != NULL);  in ext3_getblk()
1104 			fatal = ext3_journal_get_create_access(handle, bh);  in ext3_getblk()
1111 			err = ext3_journal_dirty_metadata(handle, bh);  in ext3_getblk()
1128 struct buffer_head *ext3_bread(handle_t *handle, struct inode *inode,  in ext3_bread()  argument
1133 	bh = ext3_getblk(handle, inode, block, create, err);  in ext3_bread()
1149 static int walk_page_buffers(	handle_t *handle,  in walk_page_buffers()  argument
1154 				int (*fn)(	handle_t *handle,  in walk_page_buffers()
1174 		err = (*fn)(handle, bh);  in walk_page_buffers()
1206 static int do_journal_get_write_access(handle_t *handle,  in do_journal_get_write_access()  argument
1224 	ret = ext3_journal_get_write_access(handle, bh);  in do_journal_get_write_access()
1226 		ret = ext3_journal_dirty_metadata(handle, bh);  in do_journal_get_write_access()
1256 	handle_t *handle;  in ext3_write_begin()  local
1277 	handle = ext3_journal_start(inode, needed_blocks);  in ext3_write_begin()
1278 	if (IS_ERR(handle)) {  in ext3_write_begin()
1281 		ret = PTR_ERR(handle);  in ext3_write_begin()
1289 		ret = walk_page_buffers(handle, page_buffers(page),  in ext3_write_begin()
1304 			ext3_orphan_add(handle, inode);  in ext3_write_begin()
1305 		ext3_journal_stop(handle);  in ext3_write_begin()
1318 int ext3_journal_dirty_data(handle_t *handle, struct buffer_head *bh)  in ext3_journal_dirty_data()  argument
1320 	int err = journal_dirty_data(handle, bh);  in ext3_journal_dirty_data()
1323 						bh, handle, err);  in ext3_journal_dirty_data()
1328 static int journal_dirty_data_fn(handle_t *handle, struct buffer_head *bh)  in journal_dirty_data_fn()  argument
1335 		return ext3_journal_dirty_data(handle, bh);  in journal_dirty_data_fn()
1340 static int write_end_fn(handle_t *handle, struct buffer_head *bh)  in write_end_fn()  argument
1345 	return ext3_journal_dirty_metadata(handle, bh);  in write_end_fn()
1377 	handle_t *handle = ext3_journal_current_handle();  in ext3_ordered_write_end()  local
1387 	ret = walk_page_buffers(handle, page_buffers(page),  in ext3_ordered_write_end()
1397 		ext3_orphan_add(handle, inode);  in ext3_ordered_write_end()
1398 	ret2 = ext3_journal_stop(handle);  in ext3_ordered_write_end()
1414 	handle_t *handle = ext3_journal_current_handle();  in ext3_writeback_write_end()  local
1426 		ext3_orphan_add(handle, inode);  in ext3_writeback_write_end()
1427 	ret = ext3_journal_stop(handle);  in ext3_writeback_write_end()
1441 	handle_t *handle = ext3_journal_current_handle();  in ext3_journalled_write_end()  local
1459 	ret = walk_page_buffers(handle, page_buffers(page), from,  in ext3_journalled_write_end()
1471 		ext3_orphan_add(handle, inode);  in ext3_journalled_write_end()
1473 	atomic_set(&ei->i_datasync_tid, handle->h_transaction->t_tid);  in ext3_journalled_write_end()
1476 		ret2 = ext3_mark_inode_dirty(handle, inode);  in ext3_journalled_write_end()
1481 	ret2 = ext3_journal_stop(handle);  in ext3_journalled_write_end()
1544 static int bget_one(handle_t *handle, struct buffer_head *bh)  in bget_one()  argument
1550 static int bput_one(handle_t *handle, struct buffer_head *bh)  in bput_one()  argument
1556 static int buffer_unmapped(handle_t *handle, struct buffer_head *bh)  in buffer_unmapped()  argument
1579 	handle_t *handle = NULL;  in ext3_ordered_writepage()  local
1613 	handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode));  in ext3_ordered_writepage()
1615 	if (IS_ERR(handle)) {  in ext3_ordered_writepage()
1616 		ret = PTR_ERR(handle);  in ext3_ordered_writepage()
1620 	walk_page_buffers(handle, page_bufs, 0,  in ext3_ordered_writepage()
1638 		ret = walk_page_buffers(handle, page_bufs, 0, PAGE_CACHE_SIZE,  in ext3_ordered_writepage()
1640 	walk_page_buffers(handle, page_bufs, 0,  in ext3_ordered_writepage()
1642 	err = ext3_journal_stop(handle);  in ext3_ordered_writepage()
1657 	handle_t *handle = NULL;  in ext3_writeback_writepage()  local
1683 	handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode));  in ext3_writeback_writepage()
1684 	if (IS_ERR(handle)) {  in ext3_writeback_writepage()
1685 		ret = PTR_ERR(handle);  in ext3_writeback_writepage()
1691 	err = ext3_journal_stop(handle);  in ext3_writeback_writepage()
1706 	handle_t *handle = NULL;  in ext3_journalled_writepage()  local
1724 		handle = ext3_journal_start(inode,  in ext3_journalled_writepage()
1726 		if (IS_ERR(handle)) {  in ext3_journalled_writepage()
1727 			ret = PTR_ERR(handle);  in ext3_journalled_writepage()
1738 			ext3_journal_stop(handle);  in ext3_journalled_writepage()
1741 		ret = walk_page_buffers(handle, page_buffers(page), 0,  in ext3_journalled_writepage()
1744 		err = walk_page_buffers(handle, page_buffers(page), 0,  in ext3_journalled_writepage()
1750 			   handle->h_transaction->t_tid);  in ext3_journalled_writepage()
1752 		err = ext3_journal_stop(handle);  in ext3_journalled_writepage()
1829 	handle_t *handle;  in ext3_direct_IO()  local
1842 			handle = ext3_journal_start(inode, 2);  in ext3_direct_IO()
1843 			if (IS_ERR(handle)) {  in ext3_direct_IO()
1844 				ret = PTR_ERR(handle);  in ext3_direct_IO()
1847 			ret = ext3_orphan_add(handle, inode);  in ext3_direct_IO()
1849 				ext3_journal_stop(handle);  in ext3_direct_IO()
1854 			ext3_journal_stop(handle);  in ext3_direct_IO()
1878 		handle = ext3_journal_start(inode, 2);  in ext3_direct_IO()
1879 		if (IS_ERR(handle)) {  in ext3_direct_IO()
1884 			ret = PTR_ERR(handle);  in ext3_direct_IO()
1890 			ext3_orphan_del(handle, inode);  in ext3_direct_IO()
1903 				ext3_mark_inode_dirty(handle, inode);  in ext3_direct_IO()
1906 		err = ext3_journal_stop(handle);  in ext3_direct_IO()
2001 	handle_t *handle = NULL;  in ext3_block_truncate_page()  local
2058 		handle = ext3_journal_start(inode, 1);  in ext3_block_truncate_page()
2059 		if (IS_ERR(handle)) {  in ext3_block_truncate_page()
2062 			err = PTR_ERR(handle);  in ext3_block_truncate_page()
2069 		err = ext3_journal_get_write_access(handle, bh);  in ext3_block_truncate_page()
2079 		err = ext3_journal_dirty_metadata(handle, bh);  in ext3_block_truncate_page()
2082 			err = ext3_journal_dirty_data(handle, bh);  in ext3_block_truncate_page()
2086 	if (handle)  in ext3_block_truncate_page()
2087 		ext3_journal_stop(handle);  in ext3_block_truncate_page()
2199 static void ext3_clear_blocks(handle_t *handle, struct inode *inode,  in ext3_clear_blocks()  argument
2204 	if (try_to_extend_transaction(handle, inode)) {  in ext3_clear_blocks()
2207 			if (ext3_journal_dirty_metadata(handle, bh))  in ext3_clear_blocks()
2210 		ext3_mark_inode_dirty(handle, inode);  in ext3_clear_blocks()
2211 		truncate_restart_transaction(handle, inode);  in ext3_clear_blocks()
2214 			if (ext3_journal_get_write_access(handle, bh))  in ext3_clear_blocks()
2234 			ext3_forget(handle, 0, inode, bh, nr);  in ext3_clear_blocks()
2238 	ext3_free_blocks(handle, inode, block_to_free, count);  in ext3_clear_blocks()
2260 static void ext3_free_data(handle_t *handle, struct inode *inode,  in ext3_free_data()  argument
2276 		err = ext3_journal_get_write_access(handle, this_bh);  in ext3_free_data()
2294 				ext3_clear_blocks(handle, inode, this_bh,  in ext3_free_data()
2305 		ext3_clear_blocks(handle, inode, this_bh, block_to_free,  in ext3_free_data()
2318 			ext3_journal_dirty_metadata(handle, this_bh);  in ext3_free_data()
2341 static void ext3_free_branches(handle_t *handle, struct inode *inode,  in ext3_free_branches()  argument
2348 	if (is_handle_aborted(handle))  in ext3_free_branches()
2376 			ext3_free_branches(handle, inode, bh,  in ext3_free_branches()
2397 			if (is_handle_aborted(handle))  in ext3_free_branches()
2399 			if (try_to_extend_transaction(handle, inode)) {  in ext3_free_branches()
2400 				ext3_mark_inode_dirty(handle, inode);  in ext3_free_branches()
2401 				truncate_restart_transaction(handle, inode);  in ext3_free_branches()
2427 			ext3_forget(handle, 1, inode, bh, bh->b_blocknr);  in ext3_free_branches()
2429 			ext3_free_blocks(handle, inode, nr, 1);  in ext3_free_branches()
2437 				if (!ext3_journal_get_write_access(handle,  in ext3_free_branches()
2442 					ext3_journal_dirty_metadata(handle,  in ext3_free_branches()
2450 		ext3_free_data(handle, inode, parent_bh, first, last);  in ext3_free_branches()
2495 	handle_t *handle;  in ext3_truncate()  local
2515 	handle = start_transaction(inode);  in ext3_truncate()
2516 	if (IS_ERR(handle))  in ext3_truncate()
2534 	if (ext3_orphan_add(handle, inode))  in ext3_truncate()
2553 		ext3_free_data(handle, inode, NULL, i_data+offsets[0],  in ext3_truncate()
2563 			ext3_free_branches(handle, inode, NULL,  in ext3_truncate()
2572 			ext3_free_branches(handle, inode, partial->bh,  in ext3_truncate()
2579 		ext3_free_branches(handle, inode, partial->bh, partial->p + 1,  in ext3_truncate()
2592 			ext3_free_branches(handle, inode, NULL, &nr, &nr+1, 1);  in ext3_truncate()
2598 			ext3_free_branches(handle, inode, NULL, &nr, &nr+1, 2);  in ext3_truncate()
2604 			ext3_free_branches(handle, inode, NULL, &nr, &nr+1, 3);  in ext3_truncate()
2615 	ext3_mark_inode_dirty(handle, inode);  in ext3_truncate()
2622 		handle->h_sync = 1;  in ext3_truncate()
2632 		ext3_orphan_del(handle, inode);  in ext3_truncate()
2634 	ext3_journal_stop(handle);  in ext3_truncate()
3032 static int ext3_do_update_inode(handle_t *handle,  in ext3_do_update_inode()  argument
3118 				err = ext3_journal_get_write_access(handle,  in ext3_do_update_inode()
3126 				handle->h_sync = 1;  in ext3_do_update_inode()
3127 				err = ext3_journal_dirty_metadata(handle,  in ext3_do_update_inode()
3154 	rc = ext3_journal_dirty_metadata(handle, bh);  in ext3_do_update_inode()
3159 	atomic_set(&ei->i_sync_tid, handle->h_transaction->t_tid);  in ext3_do_update_inode()
3161 		atomic_set(&ei->i_datasync_tid, handle->h_transaction->t_tid);  in ext3_do_update_inode()
3255 		handle_t *handle;  in ext3_setattr()  local
3259 		handle = ext3_journal_start(inode, EXT3_MAXQUOTAS_INIT_BLOCKS(inode->i_sb)+  in ext3_setattr()
3261 		if (IS_ERR(handle)) {  in ext3_setattr()
3262 			error = PTR_ERR(handle);  in ext3_setattr()
3267 			ext3_journal_stop(handle);  in ext3_setattr()
3276 		error = ext3_mark_inode_dirty(handle, inode);  in ext3_setattr()
3277 		ext3_journal_stop(handle);  in ext3_setattr()
3285 		handle_t *handle;  in ext3_setattr()  local
3287 		handle = ext3_journal_start(inode, 3);  in ext3_setattr()
3288 		if (IS_ERR(handle)) {  in ext3_setattr()
3289 			error = PTR_ERR(handle);  in ext3_setattr()
3293 		error = ext3_orphan_add(handle, inode);  in ext3_setattr()
3295 			ext3_journal_stop(handle);  in ext3_setattr()
3299 		error = ext3_mark_inode_dirty(handle, inode);  in ext3_setattr()
3300 		ext3_journal_stop(handle);  in ext3_setattr()
3309 			handle = ext3_journal_start(inode, 3);  in ext3_setattr()
3310 			if (IS_ERR(handle)) {  in ext3_setattr()
3314 			ext3_orphan_del(handle, inode);  in ext3_setattr()
3315 			ext3_journal_stop(handle);  in ext3_setattr()
3391 int ext3_mark_iloc_dirty(handle_t *handle,  in ext3_mark_iloc_dirty()  argument
3400 	err = ext3_do_update_inode(handle, inode, iloc);  in ext3_mark_iloc_dirty()
3411 ext3_reserve_inode_write(handle_t *handle, struct inode *inode,  in ext3_reserve_inode_write()  argument
3415 	if (handle) {  in ext3_reserve_inode_write()
3419 			err = ext3_journal_get_write_access(handle, iloc->bh);  in ext3_reserve_inode_write()
3443 int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode)  in ext3_mark_inode_dirty()  argument
3450 	err = ext3_reserve_inode_write(handle, inode, &iloc);  in ext3_mark_inode_dirty()
3452 		err = ext3_mark_iloc_dirty(handle, inode, &iloc);  in ext3_mark_inode_dirty()
3473 	handle_t *handle;  in ext3_dirty_inode()  local
3475 	handle = ext3_journal_start(inode, 2);  in ext3_dirty_inode()
3476 	if (IS_ERR(handle))  in ext3_dirty_inode()
3479 		current_handle->h_transaction != handle->h_transaction) {  in ext3_dirty_inode()
3486 		ext3_mark_inode_dirty(handle, inode);  in ext3_dirty_inode()
3488 	ext3_journal_stop(handle);  in ext3_dirty_inode()
3501 static int ext3_pin_inode(handle_t *handle, struct inode *inode)
3506 	if (handle) {
3510 			err = journal_get_write_access(handle, iloc.bh);
3512 				err = ext3_journal_dirty_metadata(handle,
3525 	handle_t *handle;  in ext3_change_inode_journal_flag()  local
3563 	handle = ext3_journal_start(inode, 1);  in ext3_change_inode_journal_flag()
3564 	if (IS_ERR(handle))  in ext3_change_inode_journal_flag()
3565 		return PTR_ERR(handle);  in ext3_change_inode_journal_flag()
3567 	err = ext3_mark_inode_dirty(handle, inode);  in ext3_change_inode_journal_flag()
3568 	handle->h_sync = 1;  in ext3_change_inode_journal_flag()
3569 	ext3_journal_stop(handle);  in ext3_change_inode_journal_flag()