Re: [RESEND,v5,1/2] bio: limit bio max size

[Bart Van Assche]

On 4/7/21 3:27 AM, Damien Le Moal wrote:
> On 2021/04/07 18:46, Changheun Lee wrote:
> > I'll prepare new patch as you recommand. It will be added setting of
> > limit_bio_size automatically when queue max sectors is determined.
>
> Please do that in the driver for the HW that benefits from it. Do not do this
> for all block devices.

Hmm ... is it ever useful to build a bio with a size that exceeds 
max_hw_sectors when submitting a bio directly to a block device, or in 
other words, if no stacked block driver sits between the submitter and 
the block device? Am I perhaps missing something?

Thanks,

Bart.