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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6:
  ide: Fix IDE taskfile with cfq scheduler
  ide: Must hold queue lock when requeueing
  ide: Requeue request after DMA timeout
Linus Torvalds преди 15 години
родител
ревизия
cf90bfe2eb
променени са 5 файла, в които са добавени 6 реда и са изтрити 6 реда
  1. 1 1
      drivers/ide/ide-atapi.c
  2. 1 0
      drivers/ide/ide-dma.c
  3. 1 1
      drivers/ide/ide-io.c
  4. 2 4
      drivers/ide/ide-taskfile.c
  5. 1 0
      include/linux/ide.h

+ 1 - 1
drivers/ide/ide-atapi.c

@@ -264,8 +264,8 @@ void ide_retry_pc(ide_drive_t *drive)
 	 * of it.  The failed command will be retried after sense data
 	 * is acquired.
 	 */
-	blk_requeue_request(failed_rq->q, failed_rq);
 	drive->hwif->rq = NULL;
+	ide_requeue_and_plug(drive, failed_rq);
 	if (ide_queue_sense_rq(drive, pc)) {
 		blk_start_request(failed_rq);
 		ide_complete_rq(drive, -EIO, blk_rq_bytes(failed_rq));

+ 1 - 0
drivers/ide/ide-dma.c

@@ -493,6 +493,7 @@ ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error)
 	if (rq) {
 		hwif->rq = NULL;
 		rq->errors = 0;
+		ide_requeue_and_plug(drive, rq);
 	}
 	return ret;
 }

+ 1 - 1
drivers/ide/ide-io.c

@@ -566,7 +566,7 @@ plug_device_2:
 		blk_plug_device(q);
 }
 
-static void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq)
+void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq)
 {
 	struct request_queue *q = drive->queue;
 	unsigned long flags;

+ 2 - 4
drivers/ide/ide-taskfile.c

@@ -428,13 +428,11 @@ int ide_raw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd, u8 *buf,
 {
 	struct request *rq;
 	int error;
+	int rw = !(cmd->tf_flags & IDE_TFLAG_WRITE) ? READ : WRITE;
 
-	rq = blk_get_request(drive->queue, READ, __GFP_WAIT);
+	rq = blk_get_request(drive->queue, rw, __GFP_WAIT);
 	rq->cmd_type = REQ_TYPE_ATA_TASKFILE;
 
-	if (cmd->tf_flags & IDE_TFLAG_WRITE)
-		rq->cmd_flags |= REQ_RW;
-
 	/*
 	 * (ks) We transfer currently only whole sectors.
 	 * This is suffient for now.  But, it would be great,

+ 1 - 0
include/linux/ide.h

@@ -1169,6 +1169,7 @@ extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout);
 extern void ide_timer_expiry(unsigned long);
 extern irqreturn_t ide_intr(int irq, void *dev_id);
 extern void do_ide_request(struct request_queue *);
+extern void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq);
 
 void ide_init_disk(struct gendisk *, ide_drive_t *);