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| author | kris <kris@FreeBSD.org> | 2008-01-08 01:11:40 +0000 |
|---|---|---|
| committer | kris <kris@FreeBSD.org> | 2008-01-08 01:11:40 +0000 |
| commit | 0b7e3f244ae95be162d66ce3772f8dfebb182eeb (patch) | |
| tree | f78bf0803e511b86e38a37b352e388feaada50bc /sys/kern/subr_lock.c | |
| parent | d08bce9f30d60c843eedd1777eefcfdc14fda336 (diff) | |
| download | FreeBSD-src-0b7e3f244ae95be162d66ce3772f8dfebb182eeb.zip FreeBSD-src-0b7e3f244ae95be162d66ce3772f8dfebb182eeb.tar.gz | |
Fix logic in skipcount handling (used to sample every 1/N lock operations
to reduce profiling overhead)
Diffstat (limited to 'sys/kern/subr_lock.c')
| -rw-r--r-- | sys/kern/subr_lock.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sys/kern/subr_lock.c b/sys/kern/subr_lock.c index 47aa769..b236f8d 100644 --- a/sys/kern/subr_lock.c +++ b/sys/kern/subr_lock.c @@ -492,7 +492,7 @@ lock_profile_obtain_lock_success(struct lock_object *lo, int contested, if (!lock_prof_enable || (lo->lo_flags & LO_NOPROFILE)) return; if (lock_prof_skipcount && - (++lock_prof_count % lock_prof_skipcount) == 0) + (++lock_prof_count % lock_prof_skipcount) != 0) return; spin = LOCK_CLASS(lo) == &lock_class_mtx_spin; if (spin && lock_prof_skipspin == 1) |
