Re: [Xen-devel] [PATCH net v3] xen-netback: fix race condition on XenBus disconnect

2017-03-09 Thread kbuild test robot
Hi Igor, [auto build test WARNING on net/master] url: https://github.com/0day-ci/linux/commits/Igor-Druzhinin/xen-netback-fix-race-condition-on-XenBus-disconnect/20170310-055447 reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_END

Re: [Xen-devel] [PATCH net v3] xen-netback: fix race condition on XenBus disconnect

2017-03-09 Thread Paul Durrant
> -Original Message- > From: Igor Druzhinin [mailto:igor.druzhi...@citrix.com] > Sent: 09 March 2017 19:42 > To: net...@vger.kernel.org; xen-de...@lists.xenproject.org > Cc: Paul Durrant ; jgr...@suse.com; Wei Liu > ; Igor Druzhinin > Subject: [PATCH net v3] xen-netback: fix race condition

[Xen-devel] [PATCH net v3] xen-netback: fix race condition on XenBus disconnect

2017-03-09 Thread Igor Druzhinin
In some cases during XenBus disconnect event handling and subsequent queue resource release there may be some TX handlers active on other processors. Use RCU in order to synchronize with them. Signed-off-by: Igor Druzhinin --- v3: * Fix unintended semantic change in xenvif_get_ethtool_stats * D