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Handle recursion on the vm_page_queue_mtx manually in pmap_qenter and

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pmap_qremove, in order to avoid making the mutex recursable.

Discussed with:	alc
This commit is contained in:
Jake Burkholder 2003-06-17 23:22:35 +00:00
parent 121095fdfc
commit 95343ec2e8
1 changed files with 10 additions and 4 deletions
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14
sys/sparc64/sparc64/pmap.c
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@ -899,16 +899,19 @@ void
pmap_qenter(vm_offset_t sva, vm_page_t *m, int count)
{
vm_offset_t va;
int locked;
PMAP_STATS_INC(pmap_nqenter);
va = sva;
vm_page_lock_queues();
if (!(locked = mtx_owned(&vm_page_queue_mtx)))
vm_page_lock_queues();
while (count-- > 0) {
pmap_kenter(va, *m);
va += PAGE_SIZE;
m++;
}
vm_page_unlock_queues();
if (!locked)
vm_page_unlock_queues();
tlb_range_demap(kernel_pmap, sva, va);
}
@ -920,15 +923,18 @@ void
pmap_qremove(vm_offset_t sva, int count)
{
vm_offset_t va;
int locked;
PMAP_STATS_INC(pmap_nqremove);
va = sva;
vm_page_lock_queues();
if (!(locked = mtx_owned(&vm_page_queue_mtx)))
vm_page_lock_queues();
while (count-- > 0) {
pmap_kremove(va);
va += PAGE_SIZE;
}
vm_page_unlock_queues();
if (!locked)
vm_page_unlock_queues();
tlb_range_demap(kernel_pmap, sva, va);
}