RE: [PATCH] swiotlb: Do not set total_used to 0 in swiotlb_create_debugfs_files()

[Dexuan Cui <decui@xxxxxxxxxxxxx>]

> From: Easwar Hariharan <eahariha@xxxxxxxxxxxxxxxxxxx>
> Sent: Friday, March 29, 2024 12:47 PM
> [...]
> Sorry, I'm missing a why in this commit message. Can you say what happens
> if the total_used and used_hiwater IS blindly set to 0? Is the only effect
> the change  in the readout of the swiotlb debugfs files?
> 
> Thanks,
> Easwar

Right, when the system is not doing any I/O, the readout may 
return a huge number while it should return 0. This is the only effect.

Thanks,
Dexuan