diff options
| -rw-r--r-- | drivers/scsi/ide-scsi.c | 38 |
1 files changed, 12 insertions, 26 deletions
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c index 3d62c9bcbff7..00d6a6657ebc 100644 --- a/drivers/scsi/ide-scsi.c +++ b/drivers/scsi/ide-scsi.c @@ -180,19 +180,12 @@ static void idescsi_input_buffers (ide_drive_t *drive, idescsi_pc_t *pc, unsigne return; } count = min(pc->sg->length - pc->b_count, bcount); - if (PageHighMem(pc->sg->page)) { - unsigned long flags; - - local_irq_save(flags); - buf = kmap_atomic(pc->sg->page, KM_IRQ0) + pc->sg->offset; - drive->hwif->atapi_input_bytes(drive, buf + pc->b_count, count); - kunmap_atomic(buf - pc->sg->offset, KM_IRQ0); - local_irq_restore(flags); - } else { - buf = page_address(pc->sg->page) + pc->sg->offset; - drive->hwif->atapi_input_bytes(drive, buf + pc->b_count, count); - } - bcount -= count; pc->b_count += count; + buf = kmap_atomic(pc->sg->page, KM_IRQ0); + drive->hwif->atapi_input_bytes(drive, + buf + pc->b_count + pc->sg->offset, count); + kunmap_atomic(buf, KM_IRQ0); + bcount -= count; + pc->b_count += count; if (pc->b_count == pc->sg->length) { pc->sg++; pc->b_count = 0; @@ -212,19 +205,12 @@ static void idescsi_output_buffers (ide_drive_t *drive, idescsi_pc_t *pc, unsign return; } count = min(pc->sg->length - pc->b_count, bcount); - if (PageHighMem(pc->sg->page)) { - unsigned long flags; - - local_irq_save(flags); - buf = kmap_atomic(pc->sg->page, KM_IRQ0) + pc->sg->offset; - drive->hwif->atapi_output_bytes(drive, buf + pc->b_count, count); - kunmap_atomic(buf - pc->sg->offset, KM_IRQ0); - local_irq_restore(flags); - } else { - buf = page_address(pc->sg->page) + pc->sg->offset; - drive->hwif->atapi_output_bytes(drive, buf + pc->b_count, count); - } - bcount -= count; pc->b_count += count; + buf = kmap_atomic(pc->sg->page, KM_IRQ0); + drive->hwif->atapi_output_bytes(drive, + buf + pc->b_count + pc->sg->offset, count); + kunmap_atomic(buf, KM_IRQ0); + bcount -= count; + pc->b_count += count; if (pc->b_count == pc->sg->length) { pc->sg++; pc->b_count = 0; |