Re: [PATCH v2 0/6] kernfs: proposed locking and concurrency improvement

Tejun Heo
2020-06-24T13:19:15Z

Hello, Rick.

On Wed, Jun 24, 2020 at 02:04:15AM -0700, Rick Lindsley wrote:
> In contrast, the provided patch fixes the observed problem with no ripple
> effect to other subsystems or utilities.
>
> Greg had suggested
> Treat the system as a whole please, don't go for a short-term
> fix that we all know is not solving the real problem here.
>
> Your solution affects multiple subsystems; this one affects one. Which is
> the whole system approach in terms of risk? You mentioned you support 30k
> scsi disks but only because they are slow so the inefficiencies of kernfs
> don't show. That doesn't bother you?

I suggest putting honest thoughts into finding a long term solution instead
of these rhetorical retorts. If you really can't see how ill-suited the
current use of interface and proposed solution is, I'm not sure how better
to communicate them to you.

Thanks.

--
tejun