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| author | Thomas Gleixner <tglx@linutronix.de> | 2025-11-19 18:26:55 +0100 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2025-11-20 12:14:54 +0100 |
| commit | 0d032a43ebeb9bf255cd7e3dad5f7a6371571648 (patch) | |
| tree | 00474aaaa11bc937ac69b43829388f53160719f4 /lib/bitmap.c | |
| parent | b08ef5fc8fa01ae5285bef5ff783bbb425d1fb08 (diff) | |
sched/mmcid: Prevent pointless work in mm_update_cpus_allowed()
mm_update_cpus_allowed() is not required to be invoked for affinity changes
due to migrate_disable() and migrate_enable().
migrate_disable() restricts the task temporarily to a CPU on which the task
was already allowed to run, so nothing changes. migrate_enable() restores
the actual task affinity mask.
If that mask changed between migrate_disable() and migrate_enable() then
that change was already accounted for.
Move the invocation to the proper place to avoid that.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://patch.msgid.link/20251119172549.385208276@linutronix.de
Diffstat (limited to 'lib/bitmap.c')
0 files changed, 0 insertions, 0 deletions