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lockmgr: add missing 'continue' to account for spuriously failed fcmpset

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PR:		248245
Reported by:	gbe
Noted by:	markj
Fixes by:	r363415 ("lockmgr: add adaptive spinning")
This commit is contained in:
Mateusz Guzik 2020-07-24 17:28:24 +00:00
parent bf2868538e
commit 138698898f
1 changed files with 1 additions and 0 deletions
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1
sys/kern/kern_lock.c
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@ -836,6 +836,7 @@ lockmgr_xlock_hard(struct lock *lk, u_int flags, struct lock_object *ilk,
if (x == LK_UNLOCKED) {
if (atomic_fcmpset_acq_ptr(&lk->lk_lock, &x, tid))
break;
continue;
}
if ((flags & (LK_ADAPTIVE | LK_INTERLOCK)) == LK_ADAPTIVE) {
if (lockmgr_xlock_adaptive(&lda, lk, &x))