diff options
| author | Paul Mackerras <paulus@samba.org> | 2005-11-02 15:20:55 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2005-11-02 15:20:55 +1100 |
| commit | de2d3dbd17e6bb60bde4632ce1c7df063b073934 (patch) | |
| tree | dfccb1a2717a8a042a87dbade509f894810ea1cd /drivers/scsi/ide-scsi.c | |
| parent | 104dd65fef378773ec0510c788bd4b5ad6ea1121 (diff) | |
| parent | df70b17f88a4d1d8545d3569a1f6d28c6004f9e4 (diff) | |
| download | kernel_samsung_smdk4412-de2d3dbd17e6bb60bde4632ce1c7df063b073934.zip kernel_samsung_smdk4412-de2d3dbd17e6bb60bde4632ce1c7df063b073934.tar.gz kernel_samsung_smdk4412-de2d3dbd17e6bb60bde4632ce1c7df063b073934.tar.bz2 | |
Merge ../linux-2.6
Diffstat (limited to 'drivers/scsi/ide-scsi.c')
| -rw-r--r-- | drivers/scsi/ide-scsi.c | 44 |
1 files changed, 32 insertions, 12 deletions
diff --git a/drivers/scsi/ide-scsi.c b/drivers/scsi/ide-scsi.c index 00d6a66..a440ea3 100644 --- a/drivers/scsi/ide-scsi.c +++ b/drivers/scsi/ide-scsi.c @@ -180,12 +180,22 @@ static void idescsi_input_buffers (ide_drive_t *drive, idescsi_pc_t *pc, unsigne return; } count = min(pc->sg->length - pc->b_count, bcount); - 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 (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; if (pc->b_count == pc->sg->length) { pc->sg++; pc->b_count = 0; @@ -205,12 +215,22 @@ static void idescsi_output_buffers (ide_drive_t *drive, idescsi_pc_t *pc, unsign return; } count = min(pc->sg->length - pc->b_count, bcount); - 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 (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; if (pc->b_count == pc->sg->length) { pc->sg++; pc->b_count = 0; |