K 10
svn:author
V 3
alc
K 8
svn:date
V 27
2012-09-10T16:11:29.883702Z
K 7
svn:log
V 510
Simplify pmap_unmapdev().  Since kmem_free() eventually calls pmap_remove(),
pmap_unmapdev()'s own direct efforts to destroy the page table entries are
redundant, so eliminate them.

Don't set PTE_W on the page table entry in pmap_kenter{,_attr}() on MIPS.
Setting PTE_W on MIPS is inconsistent with the implementation of this
function on other architectures.  Moreover, PTE_W should not be set, unless
the pmap's wired mapping count is incremented, which pmap_kenter{,_attr}()
doesn't do.

MFC after:	10 days

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