Re: [PATCH 09/15] libata-hp: activate hotplug by adding a call to ata_eh_hotplug() from EH

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On Tue, 2006-04-11 at 23:14 +0900, Tejun Heo wrote:
> Now all the required pieces for hotplug support are in place.  Update
> all ->error_handler's to call ata_eh_hotplug() after regular EH is
> finished.  This enables hotplug support for all drivers which use new
> EH.  With this patch, all new EH drivers can do warm unplug and plug.
> 
> Signed-off-by: Tejun Heo <htejun@xxxxxxxxx>
> 
> ---
> 
>  drivers/scsi/ahci.c         |    1 +
>  drivers/scsi/libata-bmdma.c |    1 +
>  drivers/scsi/sata_sil24.c   |    1 +
>  3 files changed, 3 insertions(+), 0 deletions(-)
> 
> 5a9a286e07ca0d216be1b8f81ab6c6e7048ae963
> diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
> index a8b699a..7f478c4 100644
> --- a/drivers/scsi/ahci.c
> +++ b/drivers/scsi/ahci.c
> @@ -864,6 +864,7 @@ static void ahci_error_handler(struct at
>  	ata_eh_revive(ap, action,
>  		      ahci_softreset, ahci_hardreset, ahci_postreset);
>  	ata_eh_finish_qcs(ap, qc, &tf);
> +	ata_eh_hotplug(ap);
>  }
>  
>  static void ahci_post_internal_cmd(struct ata_queued_cmd *qc)
> diff --git a/drivers/scsi/libata-bmdma.c b/drivers/scsi/libata-bmdma.c
> index 3c3bc71..a87efae 100644
> --- a/drivers/scsi/libata-bmdma.c
> +++ b/drivers/scsi/libata-bmdma.c
> @@ -729,6 +729,7 @@ void ata_bmdma_drive_eh(struct ata_port 
>  	ata_eh_report(ap, qc, &tf, serror, action, NULL);
>  	ata_eh_revive(ap, action, softreset, hardreset, postreset);
>  	ata_eh_finish_qcs(ap, qc, &tf);
> +	ata_eh_hotplug(ap);
>  }
>  
>  /**
> diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c
> index 9acf7a4..1ca76f7 100644
> --- a/drivers/scsi/sata_sil24.c
> +++ b/drivers/scsi/sata_sil24.c
> @@ -852,6 +852,7 @@ static void sil24_error_handler(struct a
>  	ata_eh_revive(ap, action,
>  		      sil24_softreset, sil24_hardreset, sil24_postreset);
>  	ata_eh_finish_qcs(ap, qc, &tf);
> +	ata_eh_hotplug(ap);
>  }
>  

Does it make sense to invoke ata_eh_hotplug() in ata_scsi_error()
instead of invoking ata_eh_hotplug() in each LLDD in order to
make code more general?

Thanks,
Forrest
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