From: "Michael S. Tsirkin" <mst@redhat.com>
To: Jason Wang <jasowang@redhat.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>,
kvm@vger.kernel.org, virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: Re: [PATCH V5 0/9] Fixes for vhost metadata acceleration
Date: Sat, 10 Aug 2019 15:12:11 -0400 [thread overview]
Message-ID: <20190810150611-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <1000f8a3-19a9-0383-61e5-ba08ddc9fcba@redhat.com>
On Thu, Aug 08, 2019 at 08:54:54PM +0800, Jason Wang wrote:
> I don't have any objection to convert to spinlock() but just want to
> know if any case that the above smp_mb() + counter looks good to you?
So how about we try this:
- revert the original patch for this release
- new safe patch with a spinlock for the next release
- whatever improvements we can come up with on top
Thoughts?
Because I think this needs much more scrutiny than we can
give an incremental patch.
--
MST
next prev parent reply other threads:[~2019-08-10 19:12 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-07 7:06 [PATCH V4 0/9] Fixes for metadata accelreation Jason Wang
2019-08-07 7:06 ` [PATCH V4 1/9] vhost: don't set uaddr for invalid address Jason Wang
2019-08-07 7:06 ` [PATCH V4 2/9] vhost: validate MMU notifier registration Jason Wang
2019-08-07 7:06 ` [PATCH V4 3/9] vhost: fix vhost map leak Jason Wang
2019-08-07 7:06 ` [PATCH V4 4/9] vhost: reset invalidate_count in vhost_set_vring_num_addr() Jason Wang
2019-08-07 7:06 ` [PATCH V4 5/9] vhost: mark dirty pages during map uninit Jason Wang
2019-08-07 7:06 ` [PATCH V4 6/9] vhost: don't do synchronize_rcu() in vhost_uninit_vq_maps() Jason Wang
2019-08-07 7:06 ` [PATCH V4 7/9] vhost: do not use RCU to synchronize MMU notifier with worker Jason Wang
2019-08-07 12:07 ` Jason Gunthorpe
2019-08-07 14:02 ` Jason Wang
2019-08-08 12:54 ` Jason Wang
2019-08-08 13:01 ` Jason Wang
2019-08-08 13:05 ` Jason Gunthorpe
2019-08-10 19:12 ` Michael S. Tsirkin [this message]
2019-08-07 7:06 ` [PATCH V4 8/9] vhost: correctly set dirty pages in MMU notifiers callback Jason Wang
2019-08-07 7:06 ` [PATCH V4 9/9] vhost: do not return -EAGAIN for non blocking invalidation too early Jason Wang
2019-08-09 5:15 ` [PATCH V4 0/9] Fixes for metadata accelreation David Miller
2019-08-09 5:35 ` Jason Wang
2019-08-09 5:48 [PATCH V5 0/9] Fixes for vhost metadata acceleration Jason Wang
2019-08-10 17:52 ` Michael S. Tsirkin
2019-08-12 2:44 ` Jason Wang
2019-08-12 4:13 ` David Miller
2019-08-12 9:49 ` Michael S. Tsirkin
2019-08-12 13:02 ` Jason Gunthorpe
2019-08-13 8:31 ` Jason Wang
2019-08-13 11:57 ` Jason Gunthorpe
2019-08-13 16:41 ` Christoph Hellwig
2019-08-15 3:28 ` Jason Wang
2019-08-15 3:26 ` Jason Wang
2019-08-15 19:33 ` Jason Gunthorpe
2019-08-13 8:12 ` Jason Wang
2019-08-19 21:08 ` Michael S. Tsirkin
2019-08-20 2:29 ` Jason Wang
2019-09-01 18:02 ` Michael S. Tsirkin
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