Author: alc
Date: Sun Sep 1 17:06:14 2013
New Revision: 255125
URL: http://svnweb.freebsd.org/changeset/base/255125
Log:
pmap_protect() on MIPS does not need to acquire the pvh global lock.
Modified:
head/sys/mips/mips/pmap.c
Modified: head/sys/mips/mips/pmap.c
==============================================================================
--- head/sys/mips/mips/pmap.c Sun Sep 1 14:28:12 2013 (r255124)
+++ head/sys/mips/mips/pmap.c Sun Sep 1 17:06:14 2013 (r255125)
@@ -1914,7 +1914,6 @@ pmap_protect(pmap_t pmap, vm_offset_t sv
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 sv
if (va != va_next)
pmap_invalidate_range(pmap, va, sva);
}
- rw_wunlock(&pvh_global_lock);
PMAP_UNLOCK(pmap);
}
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