search for: 1788432

Can you consider adding stable tags to the (final version of the) fixes? On 09/21/2018 02:46 PM, Halil Pasic wrote: > The trigger for the series is this bug report: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788432 > > Changelog: > RFC -> v1: > * do mutual exclusion on a per device basis in ccw_io_helper() > > Halil Pasic (2): > virtio/s390: avoid race on vcdev->config > virtio/s390: fix race in ccw_io_helper() > > drivers/s390/virtio/virtio_ccw.c | 17 ++++++++++++...

On Tue, 25 Sep 2018 14:13:07 +0200 Halil Pasic <pasic at linux.ibm.com> wrote: > The trigger for the series is this bug report: > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788432 > > Changelog: > v1 -> v2: > * improve on commit messages, add cc:stable > RFC -> v1: > * do mutual exclusion on a per device basis in ccw_io_helper() > > Halil Pasic (2): > virtio/s390: avoid race on vcdev->config > virtio/s390: fix race in ccw_io_hel...

...is actually nothing ensuring that threads won't pile up at > vcdev->wait_q. If they all threads get woken up and see the status that > belongs to some other request as their own. This can lead to bugs. For an > example see : > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1788432 > > This normally does not cause problems, as these are usually infrequent > operations that happen in a well defined sequence and normally do not > fail. But occasionally sysfs attributes are directly dependent > on pieces of virio config and trigger a get on each read. This gives...

The following changes since commit 8c0f9f5b309d627182d5da72a69246f58bde1026: Revert "uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name" (2018-09-25 13:28:58 +0200) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux.git tags/virtio-ccw-20180926 for you to fetch changes up to