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authorDan Williams <dan.j.williams@intel.com>2012-06-21 23:41:46 -0700
committerJames Bottomley <JBottomley@Parallels.com>2012-08-24 13:10:23 +0400
commit2fcbdcb4c802fe40d6827dbc365dac90cfe8c0a3 (patch)
treed4a583b2477afcf474a4ec226406748d9a327613 /drivers/ata/Makefile
parentca6d43b051b5a061b33c43303b6b4c93b46a34b5 (diff)
[SCSI] libata: export ata_port suspend/resume infrastructure for sas
Reuse ata_port_{suspend|resume}_common for sas. This path is chosen over adding coordination between ata-tranport and sas-transport because libsas wants to revalidate the domain at resume-time at the host level. It can not validate links have resumed properly until libata has had a chance to perform its revalidation, and any sane placing of an ata_port in the sas-transport model would delay it's resumption until after the host. Export the common portion of port suspend/resume (bypass pm_runtime), and allow sas to perform these operations asynchronously (similar to the libsas async-ata probe implmentation). Async operation is determined by having an external, rather than stack based, location for storing the result of the operation. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Reviewed-by: Jacek Danecki <jacek.danecki@intel.com> Acked-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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