Re: [patch V2 03/12] rseq: Provide static branch for time slice extensions

[Sebastian Andrzej Siewior]

On 2025-10-22 14:57:32 [+0200], Thomas Gleixner wrote:
> Guard the time slice extension functionality with a static key, which can
> be disabled on the kernel command line.
> 
> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
> Cc: Mathieu Desnoyers <mathieu.desnoyers@xxxxxxxxxxxx>
> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Cc: "Paul E. McKenney" <paulmck@xxxxxxxxxx>
> Cc: Boqun Feng <boqun.feng@xxxxxxxxx>

Reviewed-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>

Might want to fold:

diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 6c42061ca20e5..34325cf61b8de 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -6482,6 +6482,10 @@
 
 	rootflags=	[KNL] Set root filesystem mount option string
 
+	rseq_slice_ext= [KNL] RSEQ slice extension
+			Disable the slice extension at boot time by
+			setting it to "off". Default is "on".
+
 	initramfs_options= [KNL]
                         Specify mount options for for the initramfs mount.
 

Sebastian