[PATCH] Revert ide softirq handling
There's a problem with the REQ_BLOCK_PC handling as well (bad ->data_len
handling) where it could actually complete a request ahead of time. I
suggest we just back this out for now, I will resubmit it later when I'm
fully confident in it.
This reverts commit 8672d57138b34447719cd7749f3d21070e1175a1
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index bcbaeb5..8d50df4 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -55,22 +55,9 @@
#include <asm/io.h>
#include <asm/bitops.h>
-void ide_softirq_done(struct request *rq)
-{
- request_queue_t *q = rq->q;
-
- add_disk_randomness(rq->rq_disk);
- end_that_request_chunk(rq, 1, rq->data_len);
-
- spin_lock_irq(q->queue_lock);
- end_that_request_last(rq, 1);
- spin_unlock_irq(q->queue_lock);
-}
-
int __ide_end_request(ide_drive_t *drive, struct request *rq, int uptodate,
int nr_sectors)
{
- unsigned int nbytes;
int ret = 1;
BUG_ON(!(rq->flags & REQ_STARTED));
@@ -94,27 +81,12 @@
HWGROUP(drive)->hwif->ide_dma_on(drive);
}
- /*
- * For partial completions (or non fs/pc requests), use the regular
- * direct completion path. Same thing for requests that failed, to
- * preserve the ->errors value we use the normal completion path
- * for those
- */
- nbytes = nr_sectors << 9;
- if (!rq->errors && rq_all_done(rq, nbytes)) {
- rq->data_len = nbytes;
+ if (!end_that_request_first(rq, uptodate, nr_sectors)) {
+ add_disk_randomness(rq->rq_disk);
blkdev_dequeue_request(rq);
HWGROUP(drive)->rq = NULL;
- blk_complete_request(rq);
+ end_that_request_last(rq, uptodate);
ret = 0;
- } else {
- if (!end_that_request_first(rq, uptodate, nr_sectors)) {
- add_disk_randomness(rq->rq_disk);
- blkdev_dequeue_request(rq);
- HWGROUP(drive)->rq = NULL;
- end_that_request_last(rq, uptodate);
- ret = 0;
- }
}
return ret;