diff options
Diffstat (limited to 'linux/closure.c')
| -rw-r--r-- | linux/closure.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/linux/closure.c b/linux/closure.c index 2958169c..1faa24d6 100644 --- a/linux/closure.c +++ b/linux/closure.c @@ -22,6 +22,10 @@ static inline void closure_put_after_sub(struct closure *cl, int flags) panic("closure_put_after_sub: bogus flags %x remaining %i", flags, r); if (!r) { + smp_acquire__after_ctrl_dep(); + + cl->closure_get_happened = false; + if (cl->fn && !(flags & CLOSURE_DESTRUCTOR)) { atomic_set(&cl->remaining, CLOSURE_REMAINING_INITIALIZER); @@ -44,7 +48,7 @@ static inline void closure_put_after_sub(struct closure *cl, int flags) /* For clearing flags with the same atomic op as a put */ void closure_sub(struct closure *cl, int v) { - closure_put_after_sub(cl, atomic_sub_return(v, &cl->remaining)); + closure_put_after_sub(cl, atomic_sub_return_release(v, &cl->remaining)); } EXPORT_SYMBOL(closure_sub); @@ -53,7 +57,7 @@ EXPORT_SYMBOL(closure_sub); */ void closure_put(struct closure *cl) { - closure_put_after_sub(cl, atomic_dec_return(&cl->remaining)); + closure_put_after_sub(cl, atomic_dec_return_release(&cl->remaining)); } EXPORT_SYMBOL(closure_put); @@ -91,6 +95,7 @@ bool closure_wait(struct closure_waitlist *waitlist, struct closure *cl) if (atomic_read(&cl->remaining) & CLOSURE_WAITING) return false; + cl->closure_get_happened = true; closure_set_waiting(cl, _RET_IP_); atomic_add(CLOSURE_WAITING + 1, &cl->remaining); llist_add(&cl->list, &waitlist->list); |