Re: [PATCH #upstream-fixes 4/4] libata: perform port detach in EH

[Jeff Garzik <jeff@garzik.org>]

Tejun Heo wrote:
> ata_port_detach() first made sure EH saw ATA_PFLAG_UNLOADING and then
> assumed EH context belongs to it and performed detach operation
> itself.  However, UNLOADING doesn't disable all of EH and this could
> lead to problems including triggering WARN_ON()'s in EH path.
> 
> This patch makes port detach behave more like other EH actions such
> that ata_port_detach() requests EH to detach and waits for completion.
> 
> Signed-off-by: Tejun Heo <tj@kernel.org>
> ---
>  drivers/ata/libata-core.c |   23 ++++-------------------
>  drivers/ata/libata-eh.c   |   32 +++++++++++++++++++++++++++++++-
>  include/linux/libata.h    |    3 ++-
>  3 files changed, 37 insertions(+), 21 deletions(-)

dropped patches 3-4 as well, due to dropping patch #2