[PATCH] libata: ATA_FLAG_IN_EH is not used, kill it

Kill unused flag ATA_FLAG_IN_EH.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

2 files changed, 4 insertions, 14 deletions

diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index c1a4b29a9ae1..bcbf71e9895b 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -779,20 +779,15 @@ enum scsi_eh_timer_return ata_scsi_timed_out(struct scsi_cmnd *cmd)
 
 int ata_scsi_error(struct Scsi_Host *host)
 {
-        struct ata_port *ap;
-        unsigned long flags;
+        struct ata_port *ap = (struct ata_port *)&host->hostdata[0];
 
         DPRINTK("ENTER\n");
 
-        ap = (struct ata_port *) &host->hostdata[0];
+        /* synchronize with IRQ handler and port task */
+        spin_unlock_wait(&ap->host_set->lock);
+        ata_port_flush_task(ap);
 
-        spin_lock_irqsave(&ap->host_set->lock, flags);
-        WARN_ON(ap->flags & ATA_FLAG_IN_EH);
-        ap->flags |= ATA_FLAG_IN_EH;
         WARN_ON(ata_qc_from_tag(ap, ap->active_tag) == NULL);
-        spin_unlock_irqrestore(&ap->host_set->lock, flags);
-
-        ata_port_flush_task(ap);
 
         ap->ops->eng_timeout(ap);
 
@@ -800,10 +795,6 @@ int ata_scsi_error(struct Scsi_Host *host)
 
         scsi_eh_flush_done_q(&ap->eh_done_q);
 
-        spin_lock_irqsave(&ap->host_set->lock, flags);
-        ap->flags &= ~ATA_FLAG_IN_EH;
-        spin_unlock_irqrestore(&ap->host_set->lock, flags);
-
         DPRINTK("EXIT\n");
         return 0;
 }
diff --git a/include/linux/libata.h b/include/linux/libata.h
index a4a1e6304e78..e20b0bfbd5f2 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -152,7 +152,6 @@ enum {
         ATA_FLAG_IRQ_MASK       = (1 << 14), /* Mask IRQ in PIO xfers */
 
         ATA_FLAG_FLUSH_PORT_TASK = (1 << 15), /* Flush port task */
-        ATA_FLAG_IN_EH          = (1 << 16), /* EH in progress */
 
         ATA_QCFLAG_ACTIVE       = (1 << 1), /* cmd not yet ack'd to scsi lyer */
         ATA_QCFLAG_SG           = (1 << 3), /* have s/g table? */