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Message-Id: <1466027173-5501-8-git-send-email-paulmck@linux.vnet.ibm.com> Date: Wed, 15 Jun 2016 14:46:09 -0700 From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com> To: linux-kernel@...r.kernel.org Cc: mingo@...nel.org, jiangshanlai@...il.com, dipankar@...ibm.com, akpm@...ux-foundation.org, mathieu.desnoyers@...icios.com, josh@...htriplett.org, tglx@...utronix.de, peterz@...radead.org, rostedt@...dmis.org, dhowells@...hat.com, edumazet@...gle.com, dvhart@...ux.intel.com, fweisbec@...il.com, oleg@...hat.com, bobby.prani@...il.com, "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>, Richard Weinberger <richard@....at>, Jeff Dike <jdike@...toit.com> Subject: [PATCH tip/core/rcu 08/12] 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@...ux.vnet.ibm.com> Cc: Richard Weinberger <richard@....at> Cc: Jeff Dike <jdike@...toit.com> --- init/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/init/Kconfig b/init/Kconfig index f755a602d4a1..a068265fbcaf 100644 --- 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 -- 2.5.2
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