rcu: Drop RCU_USER_QS in favor of NO_HZ_FULL

The RCU_USER_QS Kconfig parameter is now just a synonym for NO_HZ_FULL,
so this commit eliminates RCU_USER_QS, replacing all uses with NO_HZ_FULL.

Reported-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>

1 files changed, 0 insertions, 9 deletions

diff --git a/init/Kconfig b/init/Kconfig
index af09b4fb43d2..fdeff4ab5995 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -538,15 +538,6 @@ config RCU_STALL_COMMON
 config CONTEXT_TRACKING
        bool
 
-config RCU_USER_QS
-        bool
-        help
-          This option sets hooks on kernel / userspace boundaries and
-          puts RCU in extended quiescent state when the CPU runs in
-          userspace. It means that when a CPU runs in userspace, it is
-          excluded from the global RCU state machine and thus doesn't
-          try to keep the timer tick on for RCU.
-
 config CONTEXT_TRACKING_FORCE
         bool "Force context tracking"
         depends on CONTEXT_TRACKING