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[PATCH] libata: prepare ata_sg_clean() for invocation from EH 

Make ata_sg_clean() global and don't allow NCQ for internal commands.

Signed-off-by: Tejun Heo <htejun@gmail.com>
This commit is contained in:
Tejun Heo 2006-11-14 22:47:10 +09:00
parent bd056d7eeb
commit 70e6ad0c6d
2 changed files with 4 additions and 3 deletions
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6
drivers/ata/libata-core.c
View File

@ -309,7 +309,8 @@ int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev,
tf->flags |= tf_flags;
if ((dev->flags & (ATA_DFLAG_PIO | ATA_DFLAG_NCQ_OFF |
ATA_DFLAG_NCQ)) == ATA_DFLAG_NCQ) {
ATA_DFLAG_NCQ)) == ATA_DFLAG_NCQ &&
likely(tag != ATA_TAG_INTERNAL)) {
/* yay, NCQ */
if (!lba_48_ok(block, n_block))
return -ERANGE;
@ -3533,8 +3534,7 @@ static unsigned int ata_dev_init_params(struct ata_device *dev,
* LOCKING:
* spin_lock_irqsave(host lock)
*/
static void ata_sg_clean(struct ata_queued_cmd *qc)
void ata_sg_clean(struct ata_queued_cmd *qc)
{
struct ata_port *ap = qc->ap;
struct scatterlist *sg = qc->__sg;

1
drivers/ata/libata.h
View File

@ -73,6 +73,7 @@ extern int sata_down_spd_limit(struct ata_port *ap);
extern int sata_set_spd_needed(struct ata_port *ap);
extern int ata_down_xfermask_limit(struct ata_device *dev, int force_pio0);
extern int ata_set_mode(struct ata_port *ap, struct ata_device **r_failed_dev);
extern void ata_sg_clean(struct ata_queued_cmd *qc);
extern void ata_qc_free(struct ata_queued_cmd *qc);
extern void ata_qc_issue(struct ata_queued_cmd *qc);
extern void __ata_qc_complete(struct ata_queued_cmd *qc);