With ANYPS5_FREE_SPACE=host, sceSaveDataGetMountInfo and the directory-name
search report a save's free blocks as the smaller of its own free blocks and
the 64 KiB blocks the save's volume still has. A full volume reports none
free, so a title that checks for room sees the same answer the create check
gives. Unset, the free blocks stay the save's own.
With ANYPS5_FREE_SPACE=host, creating a save first checks the free space of
the save directory's volume against the save's size, 16384 blocks when the
title passes none. A save that does not fit fails with NO_SPACE_FS and
reports the blocks missing in required_blocks, and no directory is made.
If the volume cannot be queried, the create keeps today's behaviour and one
line goes to stderr. Opening an existing save and the default fixed mode are
unchanged.
Every sceSaveDataMount3 call reads ANYPS5_FREE_SPACE and stops the title with
an error naming the variable when it is not fixed or host. Unset keeps
today's behaviour, so no save is created differently by default.
MarcZX10