diff options
| author | Kefeng Wang <wangkefeng.wang@huawei.com> | 2021-12-03 08:59:34 +0100 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-12-04 10:56:25 +0100 |
| commit | c0bed69daf4b67809b58cc7cd81a8fa4f45bc161 (patch) | |
| tree | 2e5eac02c318c1145dace9791e1e53b74ca0dc49 /kernel/locking/rtmutex.c | |
| parent | lockdep/selftests: Adapt ww-tests for PREEMPT_RT (diff) | |
| download | linux-c0bed69daf4b67809b58cc7cd81a8fa4f45bc161.tar.xz linux-c0bed69daf4b67809b58cc7cd81a8fa4f45bc161.zip | |
locking: Make owner_on_cpu() into <linux/sched.h>
Move the owner_on_cpu() from kernel/locking/rwsem.c into
include/linux/sched.h with under CONFIG_SMP, then use it
in the mutex/rwsem/rtmutex to simplify the code.
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20211203075935.136808-2-wangkefeng.wang@huawei.com
Diffstat (limited to 'kernel/locking/rtmutex.c')
| -rw-r--r-- | kernel/locking/rtmutex.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c index f89620852774..0c1f2e3f019a 100644 --- a/kernel/locking/rtmutex.c +++ b/kernel/locking/rtmutex.c @@ -1382,9 +1382,8 @@ static bool rtmutex_spin_on_owner(struct rt_mutex_base *lock, * for CONFIG_PREEMPT_RCU=y) * - the VCPU on which owner runs is preempted */ - if (!owner->on_cpu || need_resched() || - rt_mutex_waiter_is_top_waiter(lock, waiter) || - vcpu_is_preempted(task_cpu(owner))) { + if (!owner_on_cpu(owner) || need_resched() || + rt_mutex_waiter_is_top_waiter(lock, waiter)) { res = false; break; } |