diff options
Diffstat (limited to 'drivers/ata/libata.h')
| -rw-r--r-- | drivers/ata/libata.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index fe2839e58774..d3831d39bdaa 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -74,7 +74,7 @@ extern struct ata_link *ata_dev_phys_link(struct ata_device *dev); extern void ata_force_cbl(struct ata_port *ap); extern u64 ata_tf_to_lba(const struct ata_taskfile *tf); extern u64 ata_tf_to_lba48(const struct ata_taskfile *tf); -extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev); +extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev, int tag); extern int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev, u64 block, u32 n_block, unsigned int tf_flags, unsigned int tag); @@ -103,7 +103,6 @@ extern int ata_dev_configure(struct ata_device *dev); extern int sata_down_spd_limit(struct ata_link *link); extern int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel); 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); extern int atapi_check_dma(struct ata_queued_cmd *qc); @@ -119,6 +118,22 @@ extern struct ata_port *ata_port_alloc(struct ata_host *host); extern void ata_dev_enable_pm(struct ata_device *dev, enum link_pm policy); extern void ata_lpm_schedule(struct ata_port *ap, enum link_pm); +/** + * ata_qc_free - free unused ata_queued_cmd + * @qc: Command to complete + * + * Designed to free unused ata_queued_cmd object + * in case something prevents using it. + * + * LOCKING: + * spin_lock_irqsave(host lock) + */ +static inline void ata_qc_free(struct ata_queued_cmd *qc) +{ + qc->flags = 0; + qc->tag = ATA_TAG_POISON; +} + /* libata-acpi.c */ #ifdef CONFIG_ATA_ACPI extern void ata_acpi_associate_sata_port(struct ata_port *ap); |