* Paul E. McKenney <paulmck@xxxxxxxxxx> wrote: > Hello! > > This pull request contains a single commit that avoid acquiring > a lock when rcu_nmi_enter_common() is invoked from an NMI handler. > This issue can of course result in self-deadlock, and the fix is quite > straightforward. I am therefore putting it forward for the current > release (v5.7) instead of following my normal process, which would > delay it until v5.8. > > This fix has been subjected to rcutorture, kbuild test robot, and -next > testing and is available at: > > git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git urgent-for-mingo > > for you to fetch changes up to bf37da98c51825c90432d340e135cced37a7460d: > > rcu: Don't acquire lock in NMI handler in rcu_nmi_enter_common() (2020-04-05 14:22:15 -0700) > > ---------------------------------------------------------------- > Paul E. McKenney (1): > rcu: Don't acquire lock in NMI handler in rcu_nmi_enter_common() > > kernel/rcu/tree.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Pulled into tip:core/urgent, thanks Paul! Ingo
