[SCSI] libsas: fix/amend device gone notification in sas_deform_port()
authorDan Williams <dan.j.williams@intel.com>
Tue, 24 May 2011 20:17:53 +0000 (13:17 -0700)
committerJames Bottomley <jbottomley@parallels.com>
Fri, 27 May 2011 03:49:32 +0000 (22:49 -0500)
commit90f1e10d08bad84f8fd15d3469a60d437d4de64f
treebd3996757f33ac6a1cc8bf6c26dd47920363043d
parentc95286d81b976f4224c7b153defc8eec07e837d9
[SCSI] libsas: fix/amend device gone notification in sas_deform_port()

Commit 56dd2c06 "libsas: Don't issue commands to devices that have been
hot-removed" edited Darrick's original patch to remove setting 'gone' in
the sas_deform_port() path because that prevented scsi sync cache
commands from being issued when the driver was unloaded.  However, this
allows true device gone notifications (as signaled port phy events) to
trigger sync cache commands to devices that are known to be unreachable.

Teach libsas which sas_deform_port() invocations are likely device gone
events.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>
drivers/scsi/libsas/sas_internal.h
drivers/scsi/libsas/sas_phy.c
drivers/scsi/libsas/sas_port.c