On Tue, 2024-02-20 at 15:32 +0100, Greg KH wrote: > On Tue, Feb 20, 2024 at 01:34:03PM +0100, Felix Moessbauer wrote: > > From: Davidlohr Bueso <dave@xxxxxxxxxxxx> > > > > commit 0c52310f260014d95c1310364379772cb74cf82d upstream. > > > > While in theory the timer can be triggered before expires + delta, > > for the > > cases of RT tasks they really have no business giving any lenience > > for > > extra slack time, so override any passed value by the user and > > always use > > zero for schedule_hrtimeout_range() calls. Furthermore, this is > > similar to > > what the nanosleep(2) family already does with current- > > >timer_slack_ns. > > > > Signed-off-by: Davidlohr Bueso <dave@xxxxxxxxxxxx> > > Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > > Link: > > https://lore.kernel.org/r/20230123173206.6764-3-dave@xxxxxxxxxxxx > > You can't forward on a patch without signing off on it as well :( Ok, thanks for the info. I'll add the signoff and send a v3. > > And this is already in the 6.1.53 release, why apply it again? I can't find it there and also the change is not included in linux- 6.1.y or 6.1.53. There is another commit referencing this patch (linux- 6.1.y, fd4d61f85e7625cb21a7eff4efa1de46503ed2c3), but the "hrtimer: Ignore slack time ..." patch did not get backported so far. I also checked the source of v6.1.y and could not find the related change. Which commit exactly are you referring to? Felix > > confused, > > greg k-h -- Siemens AG, Technology Linux Expert Center
