diff options
| author | Ingo Molnar <mingo@kernel.org> | 2012-09-27 08:09:38 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-09-27 08:09:38 +0200 |
| commit | fa34da708cbe1e2d9a2ee7fc68ea8fccbf095d12 (patch) | |
| tree | b20795decb064af75aae8f9f6af77806b1a4769a /kernel/rcutree.h | |
| parent | a9b86fab4b0a36fc4cd2712a07259c2c0e769742 (diff) | |
| parent | cb349ca95407cbc11424d5e9fc7c8e700709041b (diff) | |
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 'kernel/rcutree.h')
| -rw-r--r-- | kernel/rcutree.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/rcutree.h b/kernel/rcutree.h index 7576fd4d8ce..5faf05d6832 100644 --- a/kernel/rcutree.h +++ b/kernel/rcutree.h @@ -102,6 +102,10 @@ struct rcu_dynticks { /* idle-period nonlazy_posted snapshot. */ int tick_nohz_enabled_snap; /* Previously seen value from sysfs. */ #endif /* #ifdef CONFIG_RCU_FAST_NO_HZ */ +#ifdef CONFIG_RCU_USER_QS + bool ignore_user_qs; /* Treat userspace as extended QS or not */ + bool in_user; /* Is the CPU in userland from RCU POV? */ +#endif }; /* RCU's kthread states for tracing. */ |