timer_list: Annotate print_cpu() diagnostic reads

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print_cpu() prints hrtimer_cpu_base and tick_sched state without
synchronizing with concurrent updates. The output is diagnostic only, so
use data_race(READ_ONCE()) for these scalar reads to document the
intentional races and avoid KCSAN reports.

Reported-by: syzbot+8f0e958900a14d08a51d@syzkaller.appspotmail.com
Signed-off-by: Yu Peng <pengyu@kylinos.cn>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260707125813.2182532-1-pengyu@kylinos.cn
Closes: https://syzkaller.appspot.com/bug?extid=8f0e958900a14d08a51d

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Yu Peng 2026-07-07 20:58:13 +08:00 • committed by Thomas Gleixner

parent 06aba58e58

commit 1d28a67d49

1 changed files with 11 additions and 6 deletions

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kernel/time/timer_list.c

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