rcu: Disable TASKS_RCU for usermode Linux

Usermode Linux currently does not implement arch_irqs_disabled_flags(), which results in a build failure in TASKS_RCU. Therefore, this commit disables the TASKS_RCU Kconfig option in usermode Linux builds. The usermode Linux maintainers expect to merge arch_irqs_disabled_flags() into 4.8, at which point this commit may be reverted. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Jeff Dike <[email protected]> Acked-by: Richard Weinberger <[email protected]>
ambv · Jun 15, 2016 · 570dd3c · 570dd3c
1 parent 3a37f72
commit 570dd3c
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/init/Kconfig b/init/Kconfig
@@ -517,6 +517,7 @@ config SRCU
 config TASKS_RCU
 	bool
 	default n
+	depends on !UML
 	select SRCU
 	help
 	  This option enables a task-based RCU implementation that uses