On Wed, May 13, 2026 at 08:05:45AM +0200, Andrea Righi wrote:
Hello,
On Wed, May 13, 2026 at 01:31:00AM +0200, Peter Schneider wrote:
Hi Greg,
Am 12.05.2026 um 19:36 schrieb Greg Kroah-Hartman:
This is the start of the stable review cycle for the 7.0.7 release. There are 307 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know.
Trying to build 7.0.7-rc1, I get this build error.
In file included from kernel/sched/build_policy.c:62: kernel/sched/ext.c: In function ‘bypass_lb_cpu’: kernel/sched/ext.c:4019:35: error: ‘donor_rq’ undeclared (first use in this function); did you mean ‘donee_rq’? 4019 | if (task_rq(p) != donor_rq) | ^~~~~~~~ | donee_rq kernel/sched/ext.c:4019:35: note: each undeclared identifier is reported only once for each function it appears in make[4]: *** [scripts/Makefile.build:289: kernel/sched/build_policy.o] Fehler 1 make[3]: *** [scripts/Makefile.build:548: kernel/sched] Fehler 2 make[2]: *** [scripts/Makefile.build:548: kernel] Fehler 2 make[1]: *** [/usr/src/linux-stable-rc/Makefile:2108: .] Fehler 2 make: *** [Makefile:248: __sub-make] Fehler 2 root@linus:/usr/src/linux-stable-rc#
The offending line seems to be part of eb5b997dadc517 (sched_ext: Skip tasks with stale task_rq in bypass_lb_cpu()) Adding Tejun and Andrea to CC.
The upstream commit (da2d81b4118a) was written on top of ff06f727a941 ("sched_ext: Move bypass_dsq into scx_sched_pcpu"), which renamed @rq to @donor_rq (among other things). That refactor is not in 7.0.y and it's not stable material.
I think The minimal fix is to rename donor_rq -> rq in the backported hunk, in 7.0.y the function still takes struct rq *rq directly, and that is the donor rq.
Greg, can you fold the following into the queued patch? Do you prefer a separate/updated patch?
Thanks, -Andrea
kernel/sched/ext.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index 3cb8025b433e0..2bb7c7a902679 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -4013,10 +4013,10 @@ static u32 bypass_lb_cpu(struct scx_sched *sch, struct rq *rq, /* * If an earlier pass placed @p on @donor_dsq from a different * CPU and the donee hasn't consumed it yet, @p is still on the
* previous CPU and task_rq(@p) != @donor_rq. @p can't be moved
* previous CPU and task_rq(@p) != @rq. @p can't be moved*/
- without its rq locked. Skip.
if (task_rq(p) != donor_rq)
if (task_rq(p) != rq) continue;donee = cpumask_any_and_distribute(donee_mask, p->cpus_ptr);
A whole new patch please.
thanks,
greg k-h