From: Miaohe Lin Date: Sat, 15 Jul 2023 03:08:29 +0000 (+0800) Subject: cgroup: use cached local variable parent in for loop X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=fcbb485d9f720b176d7bac0802181901eedddbed;p=users%2Fjedix%2Flinux-maple.git cgroup: use cached local variable parent in for loop Use local variable parent to initialize iter tcgrp in for loop so the size of cgroup.o can be reduced by 64 bytes. No functional change intended. Signed-off-by: Miaohe Lin Signed-off-by: Tejun Heo --- diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c index 30c9c2503ccf1..e9a62de3faf9b 100644 --- a/kernel/cgroup/cgroup.c +++ b/kernel/cgroup/cgroup.c @@ -5894,7 +5894,7 @@ static int cgroup_destroy_locked(struct cgroup *cgrp) parent->nr_threaded_children--; spin_lock_irq(&css_set_lock); - for (tcgrp = cgroup_parent(cgrp); tcgrp; tcgrp = cgroup_parent(tcgrp)) { + for (tcgrp = parent; tcgrp; tcgrp = cgroup_parent(tcgrp)) { tcgrp->nr_descendants--; tcgrp->nr_dying_descendants++; /*