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authorIngo Molnar <mingo@kernel.org>2012-09-27 08:09:38 +0200
committerIngo Molnar <mingo@kernel.org>2012-09-27 08:09:38 +0200
commitfa34da708cbe1e2d9a2ee7fc68ea8fccbf095d12 (patch)
treeb20795decb064af75aae8f9f6af77806b1a4769a /arch/um
parenta9b86fab4b0a36fc4cd2712a07259c2c0e769742 (diff)
parentcb349ca95407cbc11424d5e9fc7c8e700709041b (diff)
downloadlinux-fa34da708cbe1e2d9a2ee7fc68ea8fccbf095d12.tar.bz2
Merge branch 'rcu/idle' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
Pull the RCU adaptive-idle feature from Paul E. McKenney: "This series adds RCU APIs that allow non-idle tasks to enter RCU idle mode and provides x86 code to make use of them, allowing RCU to treat user-mode execution as an extended quiescent state when the new RCU_USER_QS kernel configuration parameter is specified. Work is in progress to port this to a few other architectures, but is not part of this series." Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/um')
-rw-r--r--arch/um/drivers/mconsole_kern.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index 664a60e8dfb4..c17de0db6736 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -705,6 +705,7 @@ static void stack_proc(void *arg)
struct task_struct *from = current, *to = arg;
to->thread.saved_task = from;
+ rcu_switch(from, to);
switch_to(from, to, from);
}