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| author | Dan Williams <dan.j.williams@intel.com> | 2011-09-20 15:10:33 -0700 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2011-10-02 12:30:30 -0500 |
| commit | f6e67035a9edd79b8b202c159d5bec560bb9c358 (patch) | |
| tree | ba884b5a2de7cb60bd1e6f67813b47fdb8ff509a /include/linux/libata.h | |
| parent | 2fc62e2ac350b8f574e0a09170b350a8f2fa4a02 (diff) | |
| download | lwn-f6e67035a9edd79b8b202c159d5bec560bb9c358.tar.gz lwn-f6e67035a9edd79b8b202c159d5bec560bb9c358.zip | |
[SCSI] libsas,libata: fix ->change_queue_{depth|type} for sata devices
Pass queue_depth change requests to libata, and prevent queue_type
changes for ATA devices.
Otherwise:
1/ we do not honor the libata specific restrictions on the queue depth
2/ libsas drivers that do not set sdev->tagged_supported are unable to
change the queue_depth of ata devices via sysfs
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'include/linux/libata.h')
| -rw-r--r-- | include/linux/libata.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h index efd6f9800762..23fa829bf7a3 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -1052,6 +1052,8 @@ extern int ata_scsi_slave_config(struct scsi_device *sdev); extern void ata_scsi_slave_destroy(struct scsi_device *sdev); extern int ata_scsi_change_queue_depth(struct scsi_device *sdev, int queue_depth, int reason); +extern int __ata_change_queue_depth(struct ata_port *ap, struct scsi_device *sdev, + int queue_depth, int reason); extern struct ata_device *ata_dev_pair(struct ata_device *adev); extern int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev); extern void ata_scsi_port_error_handler(struct Scsi_Host *host, struct ata_port *ap); |