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| author | Avi Kivity <avi@qumranet.com> | 2007-07-26 13:40:43 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2007-07-26 13:40:43 +0200 |
| commit | e107be36efb2a233833e8c9899039a370e4b2318 (patch) | |
| tree | 655955aa81aefeff441c412adaafe9b51a00ff56 /kernel/Kconfig.preempt | |
| parent | b47e8608a08766ef8121cd747d3aaf6c3dc22649 (diff) | |
| download | lwn-e107be36efb2a233833e8c9899039a370e4b2318.tar.gz lwn-e107be36efb2a233833e8c9899039a370e4b2318.zip | |
[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.preempt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/Kconfig.preempt b/kernel/Kconfig.preempt index c64ce9c14207..6b066632e40c 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 + |