Limit /tmp directory on tmpfs to 25% of total RAM

Author: assrinivasan

files/initramfs-tools/union-mount.j2

@@ -213,7 +213,7 @@ mkdir -p ${rootmnt}/host/$image_dir/boot
 mount --bind ${rootmnt}/host/$image_dir/boot ${rootmnt}/boot
 
 ## Mount the /tmp directory as tmpfs
-mount -t tmpfs -o rw,nosuid,nodev tmpfs ${rootmnt}/tmp
+mount -t tmpfs -o rw,nosuid,nodev,size=25% tmpfs ${rootmnt}/tmp
 
 ## Mount loop device or tmpfs for /var/log
 if $logs_inram; then