From f4fd4d3470df092b8f262c59707f971a5111654e Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Sun, 1 Sep 2013 17:06:14 +0000 Subject: [PATCH] pmap_protect() on MIPS does not need to acquire the pvh global lock. --- sys/mips/mips/pmap.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/sys/mips/mips/pmap.c b/sys/mips/mips/pmap.c index ebb6935cb82..d1bf5ea00d5 100644 --- a/sys/mips/mips/pmap.c +++ b/sys/mips/mips/pmap.c @@ -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); } -- 2.45.2