On 19-May-20 8:43 AM, David Marchand wrote:
On Tue, May 19, 2020 at 5:42 AM wangyunjian <wangyunj...@huawei.com> wrote:
From: Yunjian Wang <wangyunj...@huawei.com>
The issue is that a file descriptor at 0 is a valid one. Currently
the file not found, the return value will be set to 0. As a result,
it is impossible to distinguish between a correct descriptor and a
failed return value. Fix it to return -ENOENT instead of 0.
Fixes: b758423bc4fe ("vfio: fix race condition with sysfs")
Fixes: ff0b67d1c868 ("vfio: DMA mappinge")
Cc: sta...@dpdk.org
This patch reverts the (marked for stable) fix b758423bc4fe ("vfio:
fix race condition with sysfs") and comes with a different fix.
- Kevin, Luca, I would put this b758423bc4fe backport on hold.
- Anatoly, I don't want to put 20.05 at risk.
My simple question for 20.05 is, should we revert b758423bc4fe?
No, let's not revert anything.
As far as i can tell, this patch is a more complete fix, but it
essentially does the same thing, just in a different (and better) way.
Still, i haven't reviewed it in detail.
- This patchset will go to 20.08 as I don't feel confident in taking it now.
Yes, let's leave it for 20.08.
--
Thanks,
Anatoly
