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Add some additional pmap locking and lock assertions.

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This commit is contained in:
alc 2004-07-21 03:38:46 +00:00
parent c4c8fe2a65
commit 9a0e3c1b55
1 changed files with 5 additions and 0 deletions
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5
sys/alpha/alpha/pmap.c
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@ -1359,6 +1359,8 @@ pmap_remove_entry(pmap_t pmap, vm_page_t m, vm_offset_t va)
pv_entry_t pv;
int rtval;
PMAP_LOCK_ASSERT(pmap, MA_OWNED);
mtx_assert(&vm_page_queue_mtx, MA_OWNED);
if (m->md.pv_list_count < pmap->pm_stats.resident_count) {
TAILQ_FOREACH(pv, &m->md.pv_list, pv_list) {
if (pmap == pv->pv_pmap && va == pv->pv_va)
@ -1416,6 +1418,7 @@ pmap_remove_pte(pmap_t pmap, pt_entry_t *ptq, vm_offset_t va)
pt_entry_t oldpte;
vm_page_t m;
PMAP_LOCK_ASSERT(pmap, MA_OWNED);
oldpte = *ptq;
*ptq = 0;
if (oldpte & PG_W)
@ -1760,7 +1763,9 @@ pmap_enter(pmap_t pmap, vm_offset_t va, vm_page_t m, vm_prot_t prot,
if (opa) {
int err;
vm_page_lock_queues();
PMAP_LOCK(pmap);
err = pmap_remove_pte(pmap, pte, va);
PMAP_UNLOCK(pmap);
vm_page_unlock_queues();
if (err)
panic("pmap_enter: pte vanished, va: 0x%lx", va);