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AF_UNIX: assert that we're not acquiring the same lock

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This commit is contained in:
Matt Macy 2018-05-24 15:28:16 +00:00
parent 0c89167c76
commit 16529dace8
1 changed files with 2 additions and 0 deletions
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2
sys/kern/uipc_usrreq.c
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@ -344,6 +344,7 @@ unp_pcb_rele(struct unpcb *unp)
static void
unp_pcb_lock2(struct unpcb *unp, struct unpcb *unp2)
{
MPASS(unp != unp2);
UNP_PCB_UNLOCK_ASSERT(unp);
UNP_PCB_UNLOCK_ASSERT(unp2);
if ((uintptr_t)unp2 > (uintptr_t)unp) {
@ -375,6 +376,7 @@ unp_pcb_owned_lock2_slowpath(struct unpcb *unp, struct unpcb **unp2p, int *freed
freed = 0; \
UNP_PCB_LOCK_ASSERT((unp)); \
UNP_PCB_UNLOCK_ASSERT((unp2)); \
MPASS(unp != unp2); \
if (__predict_true(UNP_PCB_TRYLOCK((unp2)))) \
break; \
else if ((uintptr_t)(unp2) > (uintptr_t)(unp)) \