Re: [PATCH v3 2/4] i2c: core: run atomic i2c xfer when !preemptible

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, Mar 27, 2023 at 06:23:24PM +0200, Benjamin Bara wrote:
> On Mon, 27 Mar 2023 at 16:54, Wolfram Sang <wsa@xxxxxxxxxx> wrote:
> > For the !CONFIG_PREEMPT_COUNT case, preemptible() is defined 0. So,
> > don't we lose the irqs_disabled() check in that case?
> 
> Thanks for the feedback!
> PREEMPT_COUNT is selected by PREEMPTION, so I guess in the case of
> !PREEMPT_COUNT,
> we should be atomic (anyways)?

Could you make sure please? Asking Peter Zijlstra might be a good idea.
He helped me with the current implementation.

Attachment: signature.asc
Description: PGP signature


[Index of Archives]     [Linux GPIO]     [Linux SPI]     [Linux Hardward Monitoring]     [LM Sensors]     [Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux