Re: [PATCH] scsi: sd: mark the scsi device in shutdown as deleted

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Please drop this one, I've sent it by mistake.

tomash

On 4/3/23 20:39, Tomas Henzl wrote:
> Set the state to deleted in sd_shutdown so that the attached LLD
> doesn't receive new I/O (can happen when in kexec) later after
> LLD's shutdown function has been called.
> 
> Signed-off-by: Tomas Henzl <thenzl@xxxxxxxxxx>
> ---
>  drivers/scsi/sd.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
> index 4f28dd617eca..8095f0302e66 100644
> --- a/drivers/scsi/sd.c
> +++ b/drivers/scsi/sd.c
> @@ -3694,10 +3694,13 @@ static int sd_start_stop_device(struct scsi_disk *sdkp, int start)
>  static void sd_shutdown(struct device *dev)
>  {
>  	struct scsi_disk *sdkp = dev_get_drvdata(dev);
> +	struct scsi_device *sdp;
>  
>  	if (!sdkp)
>  		return;         /* this can happen */
>  
> +	sdp = sdkp->device;
> +
>  	if (pm_runtime_suspended(dev))
>  		return;
>  
> @@ -3710,6 +3713,10 @@ static void sd_shutdown(struct device *dev)
>  		sd_printk(KERN_NOTICE, sdkp, "Stopping disk\n");
>  		sd_start_stop_device(sdkp, 0);
>  	}
> +
> +	mutex_lock(&sdp->state_mutex);
> +	scsi_device_set_state(sdp, SDEV_DEL);
> +	mutex_unlock(&sdp->state_mutex);
>  }
>  
>  static int sd_suspend_common(struct device *dev, bool ignore_stop_errors)




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