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[PATCH] libata: add ATA_QCFLAG_EH_SCHEDULED

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Add ATA_QCFLAG_EH_SCHEDULED.  If this flag is set, the qc is owned by
EH and normal completion path is not allowed to finish it.  This patch
doesn't actually use this flag.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This commit is contained in:
Tejun Heo
2006-02-10 15:10:48 +09:00
committed by Jeff Garzik
parent 1fdffbce03
commit 341963b909
4 changed files with 23 additions and 14 deletions
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33
drivers/scsi/libata-core.c
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@@ -3620,19 +3620,7 @@ void ata_qc_free(struct ata_queued_cmd *qc)
}
}
/**
* ata_qc_complete - Complete an active ATA command
* @qc: Command to complete
* @err_mask: ATA Status register contents
*
* Indicate to the mid and upper layers that an ATA
* command has completed, with either an ok or not-ok status.
*
* LOCKING:
* spin_lock_irqsave(host_set lock)
*/
void ata_qc_complete(struct ata_queued_cmd *qc)
inline void __ata_qc_complete(struct ata_queued_cmd *qc)
{
assert(qc != NULL); /* ata_qc_from_tag _might_ return NULL */
assert(qc->flags & ATA_QCFLAG_ACTIVE);
@@ -3650,6 +3638,25 @@ void ata_qc_complete(struct ata_queued_cmd *qc)
qc->complete_fn(qc);
}
/**
* ata_qc_complete - Complete an active ATA command
* @qc: Command to complete
* @err_mask: ATA Status register contents
*
* Indicate to the mid and upper layers that an ATA
* command has completed, with either an ok or not-ok status.
*
* LOCKING:
* spin_lock_irqsave(host_set lock)
*/
void ata_qc_complete(struct ata_queued_cmd *qc)
{
if (unlikely(qc->flags & ATA_QCFLAG_EH_SCHEDULED))
return;
__ata_qc_complete(qc);
}
static inline int ata_should_dma_map(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;