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[libata] Add host lock to struct ata_port

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Prepare for changes required to support SATA devices
attached to SAS HBAs. For these devices we don't want to
use host_set at all, since libata will not be the owner
of struct scsi_host.

Signed-off-by: Brian King <brking@us.ibm.com>

(with slight merge modifications made by...)
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Jeff Garzik
2006-06-22 23:46:10 -04:00
parent 47005f255e
commit ba6a13083c
5 changed files with 73 additions and 73 deletions
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include/linux/libata.h
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@@ -483,6 +483,7 @@ struct ata_eh_context {
struct ata_port {
struct Scsi_Host *host; /* our co-allocated scsi host */
const struct ata_port_operations *ops;
spinlock_t *lock;
unsigned long flags; /* ATA_FLAG_xxx */
unsigned int id; /* unique id req'd by scsi midlyr */
unsigned int port_no; /* unique port #; from zero */