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Assert that the containing vm object is locked in vm_page_busy() and

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vm_page_wakeup().
This commit is contained in:
Alan Cox 2004-10-24 23:53:47 +00:00
parent ae1e5c5d8d
commit 75d0533847
1 changed files with 4 additions and 0 deletions
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4
sys/vm/vm_page.c
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@ -297,6 +297,8 @@ vm_page_flag_clear(vm_page_t m, unsigned short bits)
void
vm_page_busy(vm_page_t m)
{
VM_OBJECT_LOCK_ASSERT(m->object, MA_OWNED);
KASSERT((m->flags & PG_BUSY) == 0,
("vm_page_busy: page already busy!!!"));
vm_page_flag_set(m, PG_BUSY);
@ -326,6 +328,8 @@ vm_page_flash(vm_page_t m)
void
vm_page_wakeup(vm_page_t m)
{
VM_OBJECT_LOCK_ASSERT(m->object, MA_OWNED);
KASSERT(m->flags & PG_BUSY, ("vm_page_wakeup: page not busy!!!"));
vm_page_flag_clear(m, PG_BUSY);
vm_page_flash(m);