diff options
Diffstat (limited to 'kernel/locking')
| -rw-r--r-- | kernel/locking/mutex.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c index bc73d33c676..dd26bf6dee0 100644 --- a/kernel/locking/mutex.c +++ b/kernel/locking/mutex.c @@ -388,12 +388,10 @@ __mutex_lock_common(struct mutex *lock, long state, unsigned int subclass, /* * Optimistic spinning. * - * We try to spin for acquisition when we find that there are no - * pending waiters and the lock owner is currently running on a - * (different) CPU. - * - * The rationale is that if the lock owner is running, it is likely to - * release the lock soon. + * We try to spin for acquisition when we find that the lock owner + * is currently running on a (different) CPU and while we don't + * need to reschedule. The rationale is that if the lock owner is + * running, it is likely to release the lock soon. * * Since this needs the lock owner, and this mutex implementation * doesn't track the owner atomically in the lock field, we need to |