Messages in this thread | | | Date | Sat, 20 Mar 2021 16:51:27 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH 3/6] sched: prctl() cookie manipulation for core scheduling. |
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On Fri, Mar 19, 2021 at 04:32:50PM -0400, Joel Fernandes (Google) wrote:
> include/linux/sched.h | 7 ++ > include/linux/sched/task.h | 4 +- > include/uapi/linux/prctl.h | 7 ++ > kernel/sched/core.c | 11 +- > kernel/sched/coretag.c | 197 +++++++++++++++++++++++++++++-- > kernel/sched/sched.h | 2 + > kernel/sys.c | 7 ++ > tools/include/uapi/linux/prctl.h | 7 ++ > 8 files changed, 230 insertions(+), 12 deletions(-) >
> diff --git a/kernel/sched/core.c b/kernel/sched/core.c > index 2e3024a6f6e1..a62e8ad5ce58 100644 > --- a/kernel/sched/core.c > +++ b/kernel/sched/core.c > @@ -4654,11 +4654,17 @@ unsigned long nr_iowait(void) > * sched_exec - execve() is a valuable balancing opportunity, because at > * this point the task has the smallest effective memory and cache footprint. > */ > -void sched_exec(void) > +int sched_exec(void) > { > struct task_struct *p = current; > unsigned long flags; > int dest_cpu; > + int ret; > + > + /* this may change what tasks current can share a core with */ > + ret = sched_core_exec(); > + if (ret) > + return ret;
Did the hunk for fs/exec.c go missing?
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