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Add "popmap" assertions: The page being freed isn't already free, and the

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page being allocated isn't already allocated.

Sponsored by:	EMC / Isilon Storage Division
This commit is contained in:
Alan Cox 2013-12-29 04:54:52 +00:00
parent 4a240f6ce7
commit a08c151546
1 changed files with 6 additions and 0 deletions
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6
sys/vm/vm_reserv.c
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@ -241,6 +241,9 @@ vm_reserv_depopulate(vm_reserv_t rv, int index)
mtx_assert(&vm_page_queue_free_mtx, MA_OWNED);
KASSERT(rv->object != NULL,
("vm_reserv_depopulate: reserv %p is free", rv));
KASSERT(isset(rv->popmap, index),
("vm_reserv_depopulate: reserv %p's popmap[%d] is clear", rv,
index));
KASSERT(rv->popcnt > 0,
("vm_reserv_depopulate: reserv %p's popcnt is corrupted", rv));
if (rv->inpartpopq) {
@ -294,6 +297,9 @@ vm_reserv_populate(vm_reserv_t rv, int index)
mtx_assert(&vm_page_queue_free_mtx, MA_OWNED);
KASSERT(rv->object != NULL,
("vm_reserv_populate: reserv %p is free", rv));
KASSERT(isclr(rv->popmap, index),
("vm_reserv_populate: reserv %p's popmap[%d] is set", rv,
index));
KASSERT(rv->popcnt < VM_LEVEL_0_NPAGES,
("vm_reserv_populate: reserv %p is already full", rv));
if (rv->inpartpopq) {