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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-10-10 22:39:36 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-10-10 22:39:36 +0200 |
| commit | c860f955681ebd83df4a03089f1910fc4b54651f (patch) | |
| tree | fe13b4bba7903747c5760d2bc2a1c7df2048fd90 /drivers/scsi | |
| parent | 4de4b9e1405aef41d199dd20dbce7e9a5dbbf7bf (diff) | |
| download | linux-c860f955681ebd83df4a03089f1910fc4b54651f.tar.bz2 | |
ide-scsi: cleanup ide_scsi_io_buffers()
Preparation for ide_{floppy,scsi}_io_buffers() unification.
Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/ide-scsi.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c index a2d003c5e85f..26e8c3c49474 100644 --- a/drivers/scsi/ide-scsi.c +++ b/drivers/scsi/ide-scsi.c @@ -139,29 +139,29 @@ static void ide_scsi_io_buffers(ide_drive_t *drive, struct ide_atapi_pc *pc, ide_hwif_t *hwif = drive->hwif; const struct ide_tp_ops *tp_ops = hwif->tp_ops; xfer_func_t *xf = write ? tp_ops->output_data : tp_ops->input_data; + struct scatterlist *sg = pc->sg; char *buf; int count; while (bcount) { - count = min(pc->sg->length - pc->b_count, bcount); - if (PageHighMem(sg_page(pc->sg))) { + count = min(sg->length - pc->b_count, bcount); + if (PageHighMem(sg_page(sg))) { unsigned long flags; local_irq_save(flags); - buf = kmap_atomic(sg_page(pc->sg), KM_IRQ0) + - pc->sg->offset; + buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset; xf(drive, NULL, buf + pc->b_count, count); - kunmap_atomic(buf - pc->sg->offset, KM_IRQ0); + kunmap_atomic(buf - sg->offset, KM_IRQ0); local_irq_restore(flags); } else { - buf = sg_virt(pc->sg); + buf = sg_virt(sg); xf(drive, NULL, buf + pc->b_count, count); } bcount -= count; pc->b_count += count; - if (pc->b_count == pc->sg->length) { + if (pc->b_count == sg->length) { if (!--pc->sg_cnt) break; - pc->sg = sg_next(pc->sg); + pc->sg = sg = sg_next(sg); pc->b_count = 0; } } |