diff options
| -rw-r--r-- | sys/kern/kern_clock.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sys/kern/kern_clock.c b/sys/kern/kern_clock.c index 17b85bc..e7a7a99 100644 --- a/sys/kern/kern_clock.c +++ b/sys/kern/kern_clock.c @@ -570,9 +570,11 @@ hardclock_cnt(int cnt, int usermode) flags |= TDF_PROFPEND | TDF_ASTPENDING; PROC_ITIMUNLOCK(p); } - thread_lock(td); - td->td_flags |= flags; - thread_unlock(td); + if (flags != 0) { + thread_lock(td); + td->td_flags |= flags; + thread_unlock(td); + } #ifdef HWPMC_HOOKS if (PMC_CPU_HAS_SAMPLES(PCPU_GET(cpuid))) |
