Re: [PATCH v1 2/2] {topost} scsi: libsas: check link status at ATA prereset() ops

[Jason Yan]

在 2020/7/22 17:04, Luo Jiaxing 写道:
> We found out that libata will retry reset even if SATA disk is unpluged. We
> should report offline to libata to avoid meaningless reset on the disk.
> Libata provide an ops of prereset() for this purpose, it was called by
> ata_eh_reset() only and used to decide whether to skip reset base on the
> return value of it.
>
> We check status of phy and disk at prereset(). If disk is already offline
> or phy is disabled, we return -ENOENT to libata to skip disk reset.
>
> As prereset() should be best-effort, we should continue to try disk reset
> beyond the situation we mentioned before.
>
> Signed-off-by: Luo Jiaxing <luojiaxing@xxxxxxxxxx>
> Reviewed-by: John Garry <john.garry@xxxxxxxxxx>
> ---
>   drivers/scsi/libsas/sas_ata.c | 16 +++++++++++++++-
>   1 file changed, 15 insertions(+), 1 deletion(-)

The same as the first one, after fix the  subject:

Reviewed-by: Jason Yan <yanaijie@xxxxxxxxxx>