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linux-sg2042
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ide-cd: use common completion path for DMA requests in cdrom_newpc_intr() 

Use the following facts:

- rq->nr_sectors should now be always equal to (non-zero)
  rq->hard_nr_sectors for fs requests

- REQ_TYPE_ATA_PC requests have never bio attached to them

- rq->hard_nr_sectors == 0 for REQ_TYPE_ATA_PC requests

- DMA is used only for fs, pc and REQ_TYPE_ATA_PC requests

- 'uptodate' is ignored for pc requests ('rc == 0' case)

and use the common completion path also for DMA requests.

There should be no functional changes caused by this patch

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2009-03-31 20:15:15 +02:00
parent c7ec89994f
commit 4a3d8cf48c
1 changed files with 1 additions and 10 deletions
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11
drivers/ide/ide-cd.c
View File

@ -657,16 +657,7 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
if (dma) { if (dma) {
if (dma_error) if (dma_error)
return ide_error(drive, "dma error", stat); return ide_error(drive, "dma error", stat);
if (blk_fs_request(rq)) { uptodate = 1;
ide_complete_rq(drive, 0, rq->nr_sectors
? (rq->nr_sectors << 9) : ide_rq_bytes(rq));
return ide_stopped;
} else if (rq->cmd_type == REQ_TYPE_ATA_PC && !rq->bio) {
ide_complete_rq(drive, 0, 512);
return ide_stopped;
}
if (blk_pc_request(rq) == 0 && uptodate == 0)
rq->cmd_flags |= REQ_FAILED;
goto out_end; goto out_end;
} }