befs: don't pass huge structs by value

'struct befs_disk_data_stream' is huge (~144 bytes) and it's being passed
by value in fs/befs/endian.h::cpu_to_fsrun().

It would be better to pass a pointer.

Signed-off-by: Jesper Juhl <[e-mail]>
Cc: Will Dyson <[e-mail]>
Cc: Geert Uytterhoeven <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

fs/befs/endian.h

···
 }
 
 static inline befs_data_stream
-fsds_to_cpu(const struct super_block *sb, befs_disk_data_stream n)
+fsds_to_cpu(const struct super_block *sb, const befs_disk_data_stream *n)
 {
 	befs_data_stream data;
 	int i;
 
 	for (i = 0; i < BEFS_NUM_DIRECT_BLOCKS; ++i)
-		data.direct[i] = fsrun_to_cpu(sb, n.direct[i]);
+		data.direct[i] = fsrun_to_cpu(sb, n->direct[i]);
 
-	data.max_direct_range = fs64_to_cpu(sb, n.max_direct_range);
-	data.indirect = fsrun_to_cpu(sb, n.indirect);
-	data.max_indirect_range = fs64_to_cpu(sb, n.max_indirect_range);
-	data.double_indirect = fsrun_to_cpu(sb, n.double_indirect);
+	data.max_direct_range = fs64_to_cpu(sb, n->max_direct_range);
+	data.indirect = fsrun_to_cpu(sb, n->indirect);
+	data.max_indirect_range = fs64_to_cpu(sb, n->max_indirect_range);
+	data.double_indirect = fsrun_to_cpu(sb, n->double_indirect);
 	data.max_double_indirect_range = fs64_to_cpu(sb,
-						     n.
+						     n->
 						     max_double_indirect_range);
-	data.size = fs64_to_cpu(sb, n.size);
+	data.size = fs64_to_cpu(sb, n->size);
 
 	return data;
 }

fs/befs/linuxvfs.c

···
 		int num_blks;
 
 		befs_ino->i_data.ds =
-		    fsds_to_cpu(sb, raw_inode->data.datastream);
+		    fsds_to_cpu(sb, &raw_inode->data.datastream);
 
 		num_blks = befs_count_blocks(sb, &befs_ino->i_data.ds);
 		inode->i_blocks =