Re: [PATCH v2] sched/rt: Fix race in push_rt_task

On Fri, 14 Feb 2025 17:08:44 +0000 Harshit Agarwal harshit@nutanix.com wrote:

Co-developed-by: Jon Kohler jon@nutanix.com Signed-off-by: Jon Kohler jon@nutanix.com Co-developed-by: Gauri Patwardhan gauri.patwardhan@nutanix.com Signed-off-by: Gauri Patwardhan gauri.patwardhan@nutanix.com Co-developed-by: Rahul Chunduru rahul.chunduru@nutanix.com Signed-off-by: Rahul Chunduru rahul.chunduru@nutanix.com Signed-off-by: Harshit Agarwal harshit@nutanix.com Tested-by: Will Ton william.ton@nutanix.com

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Changes in v2:

• As per Steve's suggestion, removed some checks that are done after obtaining the lock that are no longer needed with the addition of new check.
• Moved up is_migration_disabled check.
• Link to v1: https://lore.kernel.org/lkml/20250211054646.23987-1-harshit@nutanix.com/

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kernel/sched/rt.c | 54 +++++++++++++++++++++++------------------------ 1 file changed, 26 insertions(+), 28 deletions(-)

Reviewed-by: Steven Rostedt (Google) rostedt@goodmis.org

Peter or Ingo,

Care to take his patch

Thanks,

-- Steve