mbox series

[v2,0/2] vhost: fix ranges when call vhost_iotlb_itree_first()

Message ID 20221109102503.18816-1-sgarzare@redhat.com (mailing list archive)
Headers show
Series vhost: fix ranges when call vhost_iotlb_itree_first() | expand

Message

Stefano Garzarella Nov. 9, 2022, 10:25 a.m. UTC 
v2:
- Patch 2: Replaced Fixes tag with the right one [Jason]

v1: https://lore.kernel.org/virtualization/20221108103437.105327-1-sgarzare@redhat.com/

While I was working on vringh to support VA in vringh_*_iotlb()
I saw that the range we use in iotlb_translate() when we call
vhost_iotlb_itree_first() was not correct IIUC.
So I looked at all the calls and found that in vhost.c as well.

I didn't observe a failure and I don't have a reproducer because
I noticed the problem by looking at the code.

Maybe we didn't have a problem, because a shorter range was being
returned anyway and the loop stopped taking into account the total
amount of bytes translated, but I think it's better to fix.

Thanks,
Stefano

Stefano Garzarella (2):
  vringh: fix range used in iotlb_translate()
  vhost: fix range used in translate_desc()

 drivers/vhost/vhost.c  | 4 ++--
 drivers/vhost/vringh.c | 5 ++---
 2 files changed, 4 insertions(+), 5 deletions(-)