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authorAvi Kivity <avi@qumranet.com>2007-07-26 13:40:43 +0200
committerIngo Molnar <mingo@elte.hu>2007-07-26 13:40:43 +0200
commite107be36efb2a233833e8c9899039a370e4b2318 (patch)
tree655955aa81aefeff441c412adaafe9b51a00ff56 /kernel/Kconfig.preempt
parentb47e8608a08766ef8121cd747d3aaf6c3dc22649 (diff)
downloadlinaro-lsk-e107be36efb2a233833e8c9899039a370e4b2318.tar.gz
[PATCH] sched: arch preempt notifier mechanism
This adds a general mechanism whereby a task can request the scheduler to notify it whenever it is preempted or scheduled back in. This allows the task to swap any special-purpose registers like the fpu or Intel's VT registers. Signed-off-by: Avi Kivity <avi@qumranet.com> [ mingo@elte.hu: fixes, cleanups ] Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/Kconfig.preempt')
-rw-r--r--kernel/Kconfig.preempt3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/Kconfig.preempt b/kernel/Kconfig.preempt
index c64ce9c1420..6b066632e40 100644
--- a/kernel/Kconfig.preempt
+++ b/kernel/Kconfig.preempt
@@ -63,3 +63,6 @@ config PREEMPT_BKL
Say Y here if you are building a kernel for a desktop system.
Say N if you are unsure.
+config PREEMPT_NOTIFIERS
+ bool
+