f2fs: remove the create argument to f2fs_map_blocks

The create argument is always identicaly to map->m_may_create, so use
that consistently.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/data.c

@@ -1477,8 +1477,7 @@ int f2fs_get_block_locked(struct dnode_of_data *dn, pgoff_t index)
  * maps continuous logical blocks to physical blocks, and return such
  * info via f2fs_map_blocks structure.
  */
-int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
-						int create, int flag)
+int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, int flag)
 {
 	unsigned int maxblocks = map->m_len;
 	struct dnode_of_data dn;
@@ -1507,38 +1506,31 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
 	pgofs =	(pgoff_t)map->m_lblk;
 	end = pgofs + maxblocks;
 
-	if (!create && f2fs_lookup_read_extent_cache(inode, pgofs, &ei)) {
-		if (f2fs_lfs_mode(sbi) && flag == F2FS_GET_BLOCK_DIO &&
-							map->m_may_create)
-			goto next_dnode;
+	if (map->m_may_create ||
+	    !f2fs_lookup_read_extent_cache(inode, pgofs, &ei))
+		goto next_dnode;
 
-		map->m_pblk = ei.blk + pgofs - ei.fofs;
-		map->m_len = min((pgoff_t)maxblocks, ei.fofs + ei.len - pgofs);
-		map->m_flags = F2FS_MAP_MAPPED;
-		if (map->m_next_extent)
-			*map->m_next_extent = pgofs + map->m_len;
+	/* Found the map in read extent cache */
+	map->m_pblk = ei.blk + pgofs - ei.fofs;
+	map->m_len = min((pgoff_t)maxblocks, ei.fofs + ei.len - pgofs);
+	map->m_flags = F2FS_MAP_MAPPED;
+	if (map->m_next_extent)
+		*map->m_next_extent = pgofs + map->m_len;
 
-		/* for hardware encryption, but to avoid potential issue in future */
-		if (flag == F2FS_GET_BLOCK_DIO)
-			f2fs_wait_on_block_writeback_range(inode,
+	/* for hardware encryption, but to avoid potential issue in future */
+	if (flag == F2FS_GET_BLOCK_DIO)
+		f2fs_wait_on_block_writeback_range(inode,
 						map->m_pblk, map->m_len);
 
-		if (map->m_multidev_dio) {
-			block_t blk_addr = map->m_pblk;
-
-			bidx = f2fs_target_device_index(sbi, map->m_pblk);
+	if (map->m_multidev_dio) {
+		bidx = f2fs_target_device_index(sbi, map->m_pblk);
 
-			map->m_bdev = FDEV(bidx).bdev;
-			map->m_pblk -= FDEV(bidx).start_blk;
-			map->m_len = min(map->m_len,
+		map->m_bdev = FDEV(bidx).bdev;
+		map->m_pblk -= FDEV(bidx).start_blk;
+		map->m_len = min(map->m_len,
 				FDEV(bidx).end_blk + 1 - map->m_pblk);
-
-			if (map->m_may_create)
-				f2fs_update_device_state(sbi, inode->i_ino,
-							blk_addr, map->m_len);
-		}
-		goto out;
 	}
+	goto out;
 
 next_dnode:
 	if (map->m_may_create)
@@ -1602,7 +1594,7 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
 			set_inode_flag(inode, FI_APPEND_WRITE);
 		}
 	} else {
-		if (create) {
+		if (map->m_may_create) {
 			if (unlikely(f2fs_cp_error(sbi))) {
 				err = -EIO;
 				goto sync_out;
@@ -1776,7 +1768,7 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
 		f2fs_balance_fs(sbi, dn.node_changed);
 	}
 out:
-	trace_f2fs_map_blocks(inode, map, create, flag, err);
+	trace_f2fs_map_blocks(inode, map, flag, err);
 	return err;
 }
 
@@ -1798,7 +1790,7 @@ bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len)
 
 	while (map.m_lblk < last_lblk) {
 		map.m_len = last_lblk - map.m_lblk;
-		err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
+		err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_DEFAULT);
 		if (err || map.m_len == 0)
 			return false;
 		map.m_lblk += map.m_len;
@@ -1972,7 +1964,7 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 		map.m_len = cluster_size - count_in_cluster;
 	}
 
-	ret = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_FIEMAP);
+	ret = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_FIEMAP);
 	if (ret)
 		goto out;
 
@@ -2105,7 +2097,7 @@ static int f2fs_read_single_page(struct inode *inode, struct page *page,
 	map->m_lblk = block_in_file;
 	map->m_len = last_block - block_in_file;
 
-	ret = f2fs_map_blocks(inode, map, 0, F2FS_GET_BLOCK_DEFAULT);
+	ret = f2fs_map_blocks(inode, map, F2FS_GET_BLOCK_DEFAULT);
 	if (ret)
 		goto out;
 got_it:
@@ -3807,7 +3799,7 @@ static sector_t f2fs_bmap(struct address_space *mapping, sector_t block)
 		map.m_next_pgofs = NULL;
 		map.m_seg_type = NO_CHECK_TYPE;
 
-		if (!f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_BMAP))
+		if (!f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_BMAP))
 			blknr = map.m_pblk;
 	}
 out:
@@ -3915,7 +3907,7 @@ static int check_swap_activate(struct swap_info_struct *sis,
 		map.m_seg_type = NO_CHECK_TYPE;
 		map.m_may_create = false;
 
-		ret = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_FIEMAP);
+		ret = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_FIEMAP);
 		if (ret)
 			goto out;
 
@@ -4140,8 +4132,7 @@ static int f2fs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 	if (flags & IOMAP_WRITE)
 		map.m_may_create = true;
 
-	err = f2fs_map_blocks(inode, &map, flags & IOMAP_WRITE,
-			      F2FS_GET_BLOCK_DIO);
+	err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_DIO);
 	if (err)
 		return err;
 

fs/f2fs/f2fs.h

@@ -3811,8 +3811,7 @@ struct page *f2fs_get_lock_data_page(struct inode *inode, pgoff_t index,
 struct page *f2fs_get_new_data_page(struct inode *inode,
 			struct page *ipage, pgoff_t index, bool new_i_size);
 int f2fs_do_write_data_page(struct f2fs_io_info *fio);
-int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
-			int create, int flag);
+int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, int flag);
 int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 			u64 start, u64 len);
 int f2fs_encrypt_one_page(struct f2fs_io_info *fio);

fs/f2fs/file.c

@@ -1743,7 +1743,7 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
 		f2fs_unlock_op(sbi);
 
 		map.m_seg_type = CURSEG_COLD_DATA_PINNED;
-		err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_DIO);
+		err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_PRE_DIO);
 		file_dont_truncate(inode);
 
 		f2fs_up_write(&sbi->pin_sem);
@@ -1756,7 +1756,7 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
 
 		map.m_len = expanded;
 	} else {
-		err = f2fs_map_blocks(inode, &map, 1, F2FS_GET_BLOCK_PRE_AIO);
+		err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_PRE_AIO);
 		expanded = map.m_len;
 	}
 out_err:
@@ -2604,7 +2604,7 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
 	 */
 	while (map.m_lblk < pg_end) {
 		map.m_len = pg_end - map.m_lblk;
-		err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
+		err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_DEFAULT);
 		if (err)
 			goto out;
 
@@ -2651,7 +2651,7 @@ static int f2fs_defragment_range(struct f2fs_sb_info *sbi,
 
 do_map:
 		map.m_len = pg_end - map.m_lblk;
-		err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_DEFAULT);
+		err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_DEFAULT);
 		if (err)
 			goto clear_out;
 
@@ -3225,7 +3225,7 @@ int f2fs_precache_extents(struct inode *inode)
 		map.m_len = end - map.m_lblk;
 
 		f2fs_down_write(&fi->i_gc_rwsem[WRITE]);
-		err = f2fs_map_blocks(inode, &map, 0, F2FS_GET_BLOCK_PRECACHE);
+		err = f2fs_map_blocks(inode, &map, F2FS_GET_BLOCK_PRECACHE);
 		f2fs_up_write(&fi->i_gc_rwsem[WRITE]);
 		if (err)
 			return err;
@@ -4464,7 +4464,7 @@ static int f2fs_preallocate_blocks(struct kiocb *iocb, struct iov_iter *iter,
 		flag = F2FS_GET_BLOCK_PRE_AIO;
 	}
 
-	ret = f2fs_map_blocks(inode, &map, 1, flag);
+	ret = f2fs_map_blocks(inode, &map, flag);
 	/* -ENOSPC|-EDQUOT are fine to report the number of allocated blocks. */
 	if (ret < 0 && !((ret == -ENOSPC || ret == -EDQUOT) && map.m_len > 0))
 		return ret;

include/trace/events/f2fs.h

@@ -569,10 +569,10 @@ TRACE_EVENT(f2fs_file_write_iter,
 );
 
 TRACE_EVENT(f2fs_map_blocks,
-	TP_PROTO(struct inode *inode, struct f2fs_map_blocks *map,
-				int create, int flag, int ret),
+	TP_PROTO(struct inode *inode, struct f2fs_map_blocks *map, int flag,
+		 int ret),
 
-	TP_ARGS(inode, map, create, flag, ret),
+	TP_ARGS(inode, map, flag, ret),
 
 	TP_STRUCT__entry(
 		__field(dev_t,	dev)
@@ -584,7 +584,6 @@ TRACE_EVENT(f2fs_map_blocks,
 		__field(int,	m_seg_type)
 		__field(bool,	m_may_create)
 		__field(bool,	m_multidev_dio)
-		__field(int,	create)
 		__field(int,	flag)
 		__field(int,	ret)
 	),
@@ -599,7 +598,6 @@ TRACE_EVENT(f2fs_map_blocks,
 		__entry->m_seg_type	= map->m_seg_type;
 		__entry->m_may_create	= map->m_may_create;
 		__entry->m_multidev_dio	= map->m_multidev_dio;
-		__entry->create		= create;
 		__entry->flag		= flag;
 		__entry->ret		= ret;
 	),
@@ -607,7 +605,7 @@ TRACE_EVENT(f2fs_map_blocks,
 	TP_printk("dev = (%d,%d), ino = %lu, file offset = %llu, "
 		"start blkaddr = 0x%llx, len = 0x%llx, flags = %u, "
 		"seg_type = %d, may_create = %d, multidevice = %d, "
-		"create = %d, flag = %d, err = %d",
+		"flag = %d, err = %d",
 		show_dev_ino(__entry),
 		(unsigned long long)__entry->m_lblk,
 		(unsigned long long)__entry->m_pblk,
@@ -616,7 +614,6 @@ TRACE_EVENT(f2fs_map_blocks,
 		__entry->m_seg_type,
 		__entry->m_may_create,
 		__entry->m_multidev_dio,
-		__entry->create,
 		__entry->flag,
 		__entry->ret)
 );