The following commit has been merged into the sched/core branch of tip:
Commit-ID: f66e4a996582d59b6f5ce88078b0ad2a328aa532
Gitweb: https://git.kernel.org/tip/f66e4a996582d59b6f5ce88078b0ad2a328aa532
Author: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
AuthorDate: Fri, 22 Nov 2024 18:35:57 +01:00
Committer: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CommitterDate: Mon, 02 Dec 2024 12:01:28 +01:00
sched/core: Update kernel boot parameters for LAZY preempt.
Update the documentation for the `preempt=' parameter which now also
accepts `lazy'.
Fixes: 7c70cb94d29cd ("sched: Add Lazy preemption model")
Reported-by: Shrikanth Hegde <sshegde@xxxxxxxxxxxxx>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Reviewed-by: Shrikanth Hegde <sshegde@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20241122173557.MYOtT95Q@xxxxxxxxxxxxx
---
Documentation/admin-guide/kernel-parameters.txt | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index dc663c0..3872bc6 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -4822,6 +4822,11 @@
can be preempted anytime. Tasks will also yield
contended spinlocks (if the critical section isn't
explicitly preempt disabled beyond the lock itself).
+ lazy - Scheduler controlled. Similar to full but instead
+ of preempting the task immediately, the task gets
+ one HZ tick time to yield itself before the
+ preemption will be forced. One preemption is when the
+ task returns to user space.
print-fatal-signals=
[KNL] debug: print fatal signals
|