using /swapfile page swapfile : 

sudo filefrag -v /swapfile
>				     physical_offset:
>				17199104..  17231871:

sudo vim /etc/default/grub
>				GRUB_CMDLINE_LINUX="resume=UUID=999e89d0-bfc0-433d-bac5-f812d495de03 resume_offset=17199104"
sudo vim /etc/mkinitcpio.conf
>				HOOKS=(base udev autodetect keyboard modconf block filesystems resume fsck) 
### add encrypt resume between block and filesystems
sudo grub-mkconfig -o /boot/grub/grub.cfg
sudo mkinitcpio -p linux-lts
mk
gr
sudo swapon /swapfile

To use that swapfile : 

sudo vim systemd-logind.service
>				[Service]       
>				Environment=SYSTEMD_BYPASS_HIBERNATION_MEMORY_CHECK=1
gr