\o/ Linus merged the bulk of the #PREEMPT_RT locking infrastructure for proper #realtime support to #Linux mainline, which thus will be a part of #kernel 5.15: git.kernel.org/torvalds/c/e5e…
Congrats to Thomas and everyone involved!
To quote: ```[…] The underlying concepts…
Congrats to Thomas and everyone involved!
To quote: ```[…] The underlying concepts…
…of this code have been in use in PREEMPT_RT for way more than a decade. The code has been refactored several times over the years and this final incarnation has been optimized once again to be as non-intrusive as possible, i.e. the RT specific parts are mostly isolated. […]```
Reminder: that's "bulk of the locking infra", which is a big part of what's currently in #PREEMPT_RT, but other things remain there. IOW: It's a really big step for #REALTIME support in mainline, but not the last. More info expected in a status update this month on @linuxplumbers
@linuxplumbers What's still left in the #PREEMPT_RT (aka #Realtime for the #Linux #kernel) patchset can be seen here: git.kernel.org/pub/scm/linux/… (ignore ~72 locking patches now merged)
It among others includes a 35 patches series from @tehcaster to make SLUB RT compatible: lore.kernel.org/lkml/202108231…
It among others includes a 35 patches series from @tehcaster to make SLUB RT compatible: lore.kernel.org/lkml/202108231…
The jury is still out, but it's in the cards the patch-set to make SLUB compatible to #PREEMPT_RT will make it into #kernel 5.15 as well:
Side note: details on the RT locking infra now merged into #Linux mainline can be found here: lwn.net/Articles/86611…
https://twitter.com/tehcaster/status/1432610978173177856
Side note: details on the RT locking infra now merged into #Linux mainline can be found here: lwn.net/Articles/86611…
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