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authorJeff Garzik <jeff@garzik.org>2012-07-25 15:58:48 -0400
committerJeff Garzik <jgarzik@redhat.com>2012-07-25 15:58:48 -0400
commit8407884dd9164ec18ed2afc00f56b87e36c51fcf (patch)
treeb6ea42c231d7d39f454de28a068d78ce11709770 /drivers/ata
parentdc7f71f486f4f5fa96f6dcf86833da020cde8a11 (diff)
parentbdc0077af574800d24318b6945cf2344e8dbb050 (diff)
downloadblackbird-op-linux-8407884dd9164ec18ed2afc00f56b87e36c51fcf.tar.gz
blackbird-op-linux-8407884dd9164ec18ed2afc00f56b87e36c51fcf.zip
Merge branch 'master' [vanilla Linus master] into libata-dev.git/upstream
Two bits were appended to the end of the bitfield list in struct scsi_device. Resolve that conflict by including both bits. Conflicts: include/scsi/scsi_device.h
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/libata-core.c4
-rw-r--r--drivers/ata/libata-eh.c57
2 files changed, 50 insertions, 11 deletions
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 95a656f33a23..fadd5866d40f 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -80,6 +80,8 @@ const struct ata_port_operations ata_base_port_ops = {
.prereset = ata_std_prereset,
.postreset = ata_std_postreset,
.error_handler = ata_std_error_handler,
+ .sched_eh = ata_std_sched_eh,
+ .end_eh = ata_std_end_eh,
};
const struct ata_port_operations sata_port_ops = {
@@ -6644,6 +6646,8 @@ struct ata_port_operations ata_dummy_port_ops = {
.qc_prep = ata_noop_qc_prep,
.qc_issue = ata_dummy_qc_issue,
.error_handler = ata_dummy_error_handler,
+ .sched_eh = ata_std_sched_eh,
+ .end_eh = ata_std_end_eh,
};
const struct ata_port_info ata_dummy_port_info = {
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 938b6996c38f..7d4535e989bf 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -793,12 +793,12 @@ void ata_scsi_port_error_handler(struct Scsi_Host *host, struct ata_port *ap)
ata_for_each_link(link, ap, HOST_FIRST)
memset(&link->eh_info, 0, sizeof(link->eh_info));
- /* Clear host_eh_scheduled while holding ap->lock such
- * that if exception occurs after this point but
- * before EH completion, SCSI midlayer will
+ /* end eh (clear host_eh_scheduled) while holding
+ * ap->lock such that if exception occurs after this
+ * point but before EH completion, SCSI midlayer will
* re-initiate EH.
*/
- host->host_eh_scheduled = 0;
+ ap->ops->end_eh(ap);
spin_unlock_irqrestore(ap->lock, flags);
ata_eh_release(ap);
@@ -986,16 +986,13 @@ void ata_qc_schedule_eh(struct ata_queued_cmd *qc)
}
/**
- * ata_port_schedule_eh - schedule error handling without a qc
- * @ap: ATA port to schedule EH for
- *
- * Schedule error handling for @ap. EH will kick in as soon as
- * all commands are drained.
+ * ata_std_sched_eh - non-libsas ata_ports issue eh with this common routine
+ * @ap: ATA port to schedule EH for
*
- * LOCKING:
+ * LOCKING: inherited from ata_port_schedule_eh
* spin_lock_irqsave(host lock)
*/
-void ata_port_schedule_eh(struct ata_port *ap)
+void ata_std_sched_eh(struct ata_port *ap)
{
WARN_ON(!ap->ops->error_handler);
@@ -1007,6 +1004,44 @@ void ata_port_schedule_eh(struct ata_port *ap)
DPRINTK("port EH scheduled\n");
}
+EXPORT_SYMBOL_GPL(ata_std_sched_eh);
+
+/**
+ * ata_std_end_eh - non-libsas ata_ports complete eh with this common routine
+ * @ap: ATA port to end EH for
+ *
+ * In the libata object model there is a 1:1 mapping of ata_port to
+ * shost, so host fields can be directly manipulated under ap->lock, in
+ * the libsas case we need to hold a lock at the ha->level to coordinate
+ * these events.
+ *
+ * LOCKING:
+ * spin_lock_irqsave(host lock)
+ */
+void ata_std_end_eh(struct ata_port *ap)
+{
+ struct Scsi_Host *host = ap->scsi_host;
+
+ host->host_eh_scheduled = 0;
+}
+EXPORT_SYMBOL(ata_std_end_eh);
+
+
+/**
+ * ata_port_schedule_eh - schedule error handling without a qc
+ * @ap: ATA port to schedule EH for
+ *
+ * Schedule error handling for @ap. EH will kick in as soon as
+ * all commands are drained.
+ *
+ * LOCKING:
+ * spin_lock_irqsave(host lock)
+ */
+void ata_port_schedule_eh(struct ata_port *ap)
+{
+ /* see: ata_std_sched_eh, unless you know better */
+ ap->ops->sched_eh(ap);
+}
static int ata_do_link_abort(struct ata_port *ap, struct ata_link *link)
{
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