On Thu, Oct 04 2007, Pierre Ossman wrote:
> On Thu, 04 Oct 2007 09:19:40 -0700
> Don Mullis <[email protected]> wrote:
>
> > This patch fixes the boot.
> >
>
> Fantastic. Then will try to get this upstream then.
I already put it in the sgchain drivers part. If you could please ack
it, that would be nice :-). I have a bunch of driver
updates/work-arounds there.
> > > It looks like missing init of the sg list in mmc, does this work?
> > >
>
> Jens, is this zeroing needed for each invocation, or really just once
> to get the list in a known state?
Once should actually be enough, so you could move it to init as well.
Don, care to verify with the below patch as well?
> Also, is chaining already upstream so Linus should have this for 2.6.23?
No, it's for 2.6.24.
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index b0abc7d..a5d0354 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -153,14 +153,14 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock
blk_queue_max_hw_segments(mq->queue, bouncesz / 512);
blk_queue_max_segment_size(mq->queue, bouncesz);
- mq->sg = kmalloc(sizeof(struct scatterlist),
+ mq->sg = kzalloc(sizeof(struct scatterlist),
GFP_KERNEL);
if (!mq->sg) {
ret = -ENOMEM;
goto cleanup_queue;
}
- mq->bounce_sg = kmalloc(sizeof(struct scatterlist) *
+ mq->bounce_sg = kzalloc(sizeof(struct scatterlist) *
bouncesz / 512, GFP_KERNEL);
if (!mq->bounce_sg) {
ret = -ENOMEM;
@@ -177,7 +177,7 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock
blk_queue_max_hw_segments(mq->queue, host->max_hw_segs);
blk_queue_max_segment_size(mq->queue, host->max_seg_size);
- mq->sg = kmalloc(sizeof(struct scatterlist) *
+ mq->sg = kzalloc(sizeof(struct scatterlist) *
host->max_phys_segs, GFP_KERNEL);
if (!mq->sg) {
ret = -ENOMEM;
--
Jens Axboe
-
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