diff options
| author | Andriy Gapon <avg@FreeBSD.org> | 2010-06-17 10:15:13 +0000 |
|---|---|---|
| committer | Andriy Gapon <avg@FreeBSD.org> | 2010-06-17 10:15:13 +0000 |
| commit | e7154e7ef11459fc2c3010705aa834c9efc30b02 (patch) | |
| tree | ebc558d2717a297807438195c8fd3741b57ccf58 /sys/kern/subr_lock.c | |
| parent | 2e983ace8fab80f4e01e73859357e5e709aea437 (diff) | |
| download | src-e7154e7ef11459fc2c3010705aa834c9efc30b02.tar.gz src-e7154e7ef11459fc2c3010705aa834c9efc30b02.zip | |
Notes
Diffstat (limited to 'sys/kern/subr_lock.c')
| -rw-r--r-- | sys/kern/subr_lock.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sys/kern/subr_lock.c b/sys/kern/subr_lock.c index bc43c9c0b85c..e09638e10bba 100644 --- a/sys/kern/subr_lock.c +++ b/sys/kern/subr_lock.c @@ -598,7 +598,7 @@ lock_profile_release_lock(struct lock_object *lo) struct lock_profile_object *l; struct lock_prof_type *type; struct lock_prof *lp; - u_int64_t holdtime; + u_int64_t curtime, holdtime; struct lpohead *head; int spin; @@ -626,9 +626,11 @@ lock_profile_release_lock(struct lock_object *lo) lp = lock_profile_lookup(lo, spin, l->lpo_file, l->lpo_line); if (lp == NULL) goto release; - holdtime = nanoseconds() - l->lpo_acqtime; - if (holdtime < 0) + curtime = nanoseconds(); + if (curtime < l->lpo_acqtime) goto release; + holdtime = curtime - l->lpo_acqtime; + /* * Record if the lock has been held longer now than ever * before. |