On Tue, Sep 12 2006, Peter Zijlstra wrote: > Limit each request to 1 page, so that the request throttling also limits the > number of in-flight pages. > > Signed-off-by: Peter Zijlstra <[EMAIL PROTECTED]> > Signed-off-by: Daniel Phillips <[EMAIL PROTECTED]> > CC: Pavel Machek <[EMAIL PROTECTED]> > --- > drivers/block/nbd.c | 17 +++++++++++++++-- > 1 file changed, 15 insertions(+), 2 deletions(-) > > Index: linux-2.6/drivers/block/nbd.c > =================================================================== > --- linux-2.6.orig/drivers/block/nbd.c 2006-09-07 18:43:41.000000000 > +0200 > +++ linux-2.6/drivers/block/nbd.c 2006-09-07 18:44:12.000000000 +0200 > @@ -638,6 +638,9 @@ static int __init nbd_init(void) > put_disk(disk); > goto out; > } > + blk_queue_max_segment_size(disk->queue, PAGE_SIZE); > + blk_queue_max_hw_segments(disk->queue, 1); > + blk_queue_max_phys_segments(disk->queue, 1);
Another bandaid. What happens if nr_requests number of pages is still too many for a system? You just moved whatever problem you had, you didn't solve anything. -- Jens Axboe - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
