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Remedy my omission of one change in the prevision revision: pmap_remove()

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must pin the current thread in order to call pmap_pte_quick().
This commit is contained in:
Alan Cox 2004-07-17 23:44:59 +00:00
parent c3d88cbab8
commit b73cfbb3e4
1 changed files with 3 additions and 0 deletions
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3
sys/i386/i386/pmap.c
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@ -1610,6 +1610,7 @@ pmap_remove_page(pmap_t pmap, vm_offset_t va)
pt_entry_t *pte;
mtx_assert(&vm_page_queue_mtx, MA_OWNED);
KASSERT(curthread->td_pinned > 0, ("curthread not pinned"));
PMAP_LOCK_ASSERT(pmap, MA_OWNED);
if ((pte = pmap_pte_quick(pmap, va)) == NULL || *pte == 0)
return;
@ -1641,6 +1642,7 @@ pmap_remove(pmap_t pmap, vm_offset_t sva, vm_offset_t eva)
return;
vm_page_lock_queues();
sched_pin();
PMAP_LOCK(pmap);
/*
@ -1707,6 +1709,7 @@ pmap_remove(pmap_t pmap, vm_offset_t sva, vm_offset_t eva)
if (anyvalid)
pmap_invalidate_all(pmap);
out:
sched_unpin();
vm_page_unlock_queues();
PMAP_UNLOCK(pmap);
}