>    IMO removing tmpfs auto-sizing feature is a way to go.
>    ie. mandate -s option of mount_tmpfs and trust it.
> 
> 
> i want tmpfs to resize based on how much ram i have, or swap, or
> some cmobo, by default.  having to change static configuration
> parameters when i simply add memory is a concept that should be
> dead in this millennium...

i don't think that the appropriate size of the filesystem is
directly related to the total amount of memory on the system.
it's rather related to the purpose of the filesystem.
at least, it can't be mechanically calculated from the amount of memory.

YAMAMOTO Takashi