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authorDan Williams <dan.j.williams@intel.com>2011-09-21 02:10:33 +0400
committerJames Bottomley <JBottomley@Parallels.com>2011-10-02 21:30:30 +0400
commitf6e67035a9edd79b8b202c159d5bec560bb9c358 (patch)
treeba884b5a2de7cb60bd1e6f67813b47fdb8ff509a /include/linux/libata.h
parent2fc62e2ac350b8f574e0a09170b350a8f2fa4a02 (diff)
downloadlinux-f6e67035a9edd79b8b202c159d5bec560bb9c358.tar.xz
[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.h2
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);