Commit 17fd47ab authored by Andrew Morton's avatar Andrew Morton Committed by Linus Torvalds

[PATCH] ide-scsi highmem cleanup

It's not necessary to test PageHighmem in here - kmap_atomic() does the right
thing.

Cc: Bartlomiej Zolnierkiewicz <B.Zolnierkiewicz@elka.pw.edu.pl>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent f1fc78a8
......@@ -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;
......
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