How to increase /tmp folder size manually

Question

I have no free space left on /tmp folder in Fedora 26. That cause several problems.

Folder /tmp takes up all the free RAM:

$ df -h /tmp
Filesystem      Size  Used Avail Use% Mounted on
tmpfs           3.9G   3.9G  12k 100% /tmp
$

So, how i can increase size of this folder manually to get more free space without adding more RAM or deleting files from it?

My question is similar to this and this but it is different:

• in my question i need to increase size of folder while I've reached maximal size

Thanks in advance.

Answer 1

mount -o remount,size=5G /tmp/