Re: [PATCH] f2fs: introduce DEFAULT_IO_TIMEOUT_JIFFIES

[Vyacheslav Dubeyko]

On Mon, 2019-12-23 at 09:41 +0100, Geert Uytterhoeven wrote:
> Hi,
> 
> CC linux-fsdevel
> 
> On Mon, Dec 23, 2019 at 5:01 AM Chao Yu <yuchao0@xxxxxxxxxx> wrote:
> > As Geert Uytterhoeven reported:
> > 
> > for parameter HZ/50 in congestion_wait(BLK_RW_ASYNC, HZ/50);
> > 
> > On some platforms, HZ can be less than 50, then unexpected 0
> > timeout
> > jiffies will be set in congestion_wait().
> > 


It looks like that HZ could have various value on diferent platforms.
So, why does it need to divide HZ on 50? Does it really necessary?
Could it be used HZ only without the division operation?

Thanks,
Viacheslav Dubeyko.