virtio: console: control queue race fixes
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- v1 Latest2 patches 3 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | virtio: console: Serialise control workdrivers/ | +6 | 2 replies | |
| 2/2 | virtio: console: Disable callbacks for virtqueues at start of S4 freezedrivers/ | +8 | 0 replies |
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Cover letter [PATCH 0/2] virtio: console: control queue race fixes
Hello,
The first patch here fixes the race seen by Miche. He hasn't yet reported back if this fixes the races he saw, but Joy Pu from Red Hat tested this patch with hot-plugging/unplugging ports in a loop. Before this patch, he saw some freezes as well as sysfs warnings. After applying the patch, all was well.
The second patch can be folded into the series fixing S4 for virtio-console. It ensures all callbacks are disabled in the freeze function. This patch has a dependency on the 1st one in the sense the double disabling of vq won't make sense w/o patch 1.
Please review and apply.
Amit Shah (2):
virtio: console: Serialise control work
virtio: console: Disable callbacks for virtqueues at start of S4
freeze
drivers/char/virtio_console.c | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-)
Signature · 1 line
1.7.7.4