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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 <paulmck@linux.vnet.ibm.com>
Cc: Jeff Dike <jdike@addtoit.com>
Acked-by: Richard Weinberger <richard@nod.at>
hifive-unleashed-5.1
Paul E. McKenney 2016-06-15 08:56:53 -07:00
parent 3a37f7275c
commit 570dd3c742
1 changed files with 1 additions and 0 deletions
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init/Kconfig
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@ -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