ide-cd: carve out an ide_cd_breathe()-helper for fs write requests

There should be no functional change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index a4afd90..7bbdeb7 100644 (file)
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -265,7 +265,43 @@ static void ide_cd_complete_failed_rq(ide_drive_t *drive, struct request *rq)
                cdrom_analyze_sense_data(drive, NULL, sense);
 }
 
+
 /*
+ * Allow the drive 5 seconds to recover; some devices will return NOT_READY
+ * while flushing data from cache.
+ *
+ * returns: 0 failed (write timeout expired)
+ *         1 success
+ */
+static int ide_cd_breathe(ide_drive_t *drive, struct request *rq)
+{
+
+       struct cdrom_info *info = drive->driver_data;
+
+       if (!rq->errors)
+               info->write_timeout = jiffies + ATAPI_WAIT_WRITE_BUSY;
+
+       rq->errors = 1;
+
+       if (time_after(jiffies, info->write_timeout))
+               return 0;
+       else {
+               struct request_queue *q = drive->queue;
+               unsigned long flags;
+
+               /*
+                * take a breather relying on the unplug timer to kick us again
+                */
+
+               spin_lock_irqsave(q->queue_lock, flags);
+               blk_plug_device(q);
+               spin_unlock_irqrestore(q->queue_lock, flags);
+
+               return 1;
+       }
+}
+
+/**
  * Returns:
  * 0: if the request should be continued.
  * 1: if the request will be going through error recovery.
@@ -348,36 +384,11 @@ static int cdrom_decode_status(ide_drive_t *drive, u8 stat)
                                /* fail the request */
                                printk(KERN_ERR PFX "%s: tray open\n",
                                                drive->name);
-                               do_end_request = 1;
                        } else {
-                               struct cdrom_info *info = drive->driver_data;
-
-                               /*
-                                * Allow the drive 5 seconds to recover, some
-                                * devices will return this error while flushing
-                                * data from cache.
-                                */
-                               if (!rq->errors)
-                                       info->write_timeout = jiffies +
-                                                       ATAPI_WAIT_WRITE_BUSY;
-                               rq->errors = 1;
-                               if (time_after(jiffies, info->write_timeout))
-                                       do_end_request = 1;
-                               else {
-                                       struct request_queue *q = drive->queue;
-                                       unsigned long flags;
-
-                                       /*
-                                        * take a breather relying on the unplug
-                                        * timer to kick us again
-                                        */
-                                       spin_lock_irqsave(q->queue_lock, flags);
-                                       blk_plug_device(q);
-                                       spin_unlock_irqrestore(q->queue_lock, flags);
-
+                               if (ide_cd_breathe(drive, rq))
                                        return 1;
-                               }
                        }
+                       do_end_request = 1;
                } else if (sense_key == UNIT_ATTENTION) {
                        /* media change */
                        cdrom_saw_media_change(drive);