Re: [PATCH v5] sched/debug: Use sched_debug_lock to serialize use of cgroup_path[] only

2021-04-16 Thread Peter Zijlstra
On Thu, Apr 15, 2021 at 03:54:26PM -0400, Waiman Long wrote: > The handling of sysrq key can be activated by echoing the key to > /proc/sysrq-trigger or via the magic key sequence typed into a terminal > that is connected to the system in some way (serial, USB or other mean). > In the former case,

[PATCH v5] sched/debug: Use sched_debug_lock to serialize use of cgroup_path[] only

2021-04-15 Thread Waiman Long
The handling of sysrq key can be activated by echoing the key to /proc/sysrq-trigger or via the magic key sequence typed into a terminal that is connected to the system in some way (serial, USB or other mean). In the former case, the handling is done in a user context. In the latter case, it is lik