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pmap_protect() on MIPS does not need to acquire the pvh global lock.

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alc 2013-09-01 17:06:14 +00:00
parent f611b39b09
commit f9897c6dd3
1 changed files with 0 additions and 2 deletions
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2
sys/mips/mips/pmap.c
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@ -1914,7 +1914,6 @@ pmap_protect(pmap_t pmap, vm_offset_t sva, vm_offset_t eva, vm_prot_t prot)
if (prot & VM_PROT_WRITE)
return;
rw_wlock(&pvh_global_lock);
PMAP_LOCK(pmap);
for (; sva < eva; sva = va_next) {
pdpe = pmap_segmap(pmap, sva);
@ -1980,7 +1979,6 @@ pmap_protect(pmap_t pmap, vm_offset_t sva, vm_offset_t eva, vm_prot_t prot)
if (va != va_next)
pmap_invalidate_range(pmap, va, sva);
}
rw_wunlock(&pvh_global_lock);
PMAP_UNLOCK(pmap);
}