fix console change race exposed by CFS

[pandora-kernel.git] / drivers / ide / ide-io.c

diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index c5b5011..aa9f5f0 100644 (file)
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -55,7 +55,7 @@
 #include <asm/bitops.h>
 
 static int __ide_end_request(ide_drive_t *drive, struct request *rq,
-                            int uptodate, int nr_sectors)
+                            int uptodate, unsigned int nr_bytes)
 {
        int ret = 1;
 
@@ -64,7 +64,7 @@ static int __ide_end_request(ide_drive_t *drive, struct request *rq,
         * complete the whole request right now
         */
        if (blk_noretry_request(rq) && end_io_error(uptodate))
-               nr_sectors = rq->hard_nr_sectors;
+               nr_bytes = rq->hard_nr_sectors << 9;
 
        if (!blk_fs_request(rq) && end_io_error(uptodate) && !rq->errors)
                rq->errors = -EIO;
@@ -78,7 +78,7 @@ static int __ide_end_request(ide_drive_t *drive, struct request *rq,
                HWGROUP(drive)->hwif->ide_dma_on(drive);
        }
 
-       if (!end_that_request_first(rq, uptodate, nr_sectors)) {
+       if (!end_that_request_chunk(rq, uptodate, nr_bytes)) {
                add_disk_randomness(rq->rq_disk);
                if (!list_empty(&rq->queuelist))
                        blkdev_dequeue_request(rq);
@@ -103,6 +103,7 @@ static int __ide_end_request(ide_drive_t *drive, struct request *rq,
 
 int ide_end_request (ide_drive_t *drive, int uptodate, int nr_sectors)
 {
+       unsigned int nr_bytes = nr_sectors << 9;
        struct request *rq;
        unsigned long flags;
        int ret = 1;
@@ -114,10 +115,14 @@ int ide_end_request (ide_drive_t *drive, int uptodate, int nr_sectors)
        spin_lock_irqsave(&ide_lock, flags);
        rq = HWGROUP(drive)->rq;
 
-       if (!nr_sectors)
-               nr_sectors = rq->hard_cur_sectors;
+       if (!nr_bytes) {
+               if (blk_pc_request(rq))
+                       nr_bytes = rq->data_len;
+               else
+                       nr_bytes = rq->hard_cur_sectors << 9;
+       }
 
-       ret = __ide_end_request(drive, rq, uptodate, nr_sectors);
+       ret = __ide_end_request(drive, rq, uptodate, nr_bytes);
 
        spin_unlock_irqrestore(&ide_lock, flags);
        return ret;
@@ -219,11 +224,12 @@ static ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *
                 * we could be smarter and check for current xfer_speed
                 * in struct drive etc...
                 */
-               if ((drive->id->capability & 1) == 0)
-                       break;
                if (drive->hwif->ide_dma_check == NULL)
                        break;
                drive->hwif->dma_off_quietly(drive);
+               /*
+                * TODO: respect ->using_dma setting
+                */
                ide_set_dma(drive);
                break;
        }
@@ -1321,7 +1327,7 @@ static void ide_do_request (ide_hwgroup_t *hwgroup, int masked_irq)
 /*
  * Passes the stuff to ide_do_request
  */
-void do_ide_request(request_queue_t *q)
+void do_ide_request(struct request_queue *q)
 {
        ide_drive_t *drive = q->queuedata;