diff options
| author | Chen Yu <yu.c.chen@intel.com> | 2026-05-13 13:39:22 -0700 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2026-05-18 21:33:17 +0200 |
| commit | d6b9afab44e23d537fb85ecf50330baaf9ec82e9 (patch) | |
| tree | 1abd9c7ce97ac8a7a6328ba6269653fe0aca6ed9 /scripts/patch-kernel | |
| parent | 03755348b8e74421f92ffed9da159175a698290b (diff) | |
sched/cache: Fix checking active load balance by only considering the CFS task
The currently running task cur may not be a CFS task, such as
an RT or Deadline task. For non-CFS tasks, the task_util(cur)
utilization average is not maintained, so this might pass a
stale or meaningless value to can_migrate_llc().
Check if the task is CFS before getting its task_util().
This bug was reported by sashiko.
Fixes: 714059f79ff0 ("sched/cache: Handle moving single tasks to/from their preferred LLC")
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Co-developed-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Tim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://patch.msgid.link/f9161133cf040d286dca11344a112c5ef2a5253d.1778703694.git.tim.c.chen@linux.intel.com
Diffstat (limited to 'scripts/patch-kernel')
0 files changed, 0 insertions, 0 deletions