[SPARC32]: Make PAGE_SHARED a read-mostly variable.
same scheme as for sparc64, same rationale Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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same scheme as for sparc64, same rationale Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Signed-off-by: NDavid S. Miller <davem@davemloft.net>