On Tue, Sep 22, 2015 at 06:50:40PM +0200, Christophe Leroy wrote: > iounmap() cannot vunmap() area mapped by TLBCAMs either > > Signed-off-by: Christophe Leroy <[email protected]> > --- > No change in v2 > > arch/powerpc/mm/pgtable_32.c | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) > > diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c > index 7692d1b..03a073a 100644 > --- a/arch/powerpc/mm/pgtable_32.c > +++ b/arch/powerpc/mm/pgtable_32.c > @@ -278,7 +278,9 @@ void iounmap(volatile void __iomem *addr) > * If mapped by BATs then there is nothing to do. > * Calling vfree() generates a benign warning. > */ > - if (v_mapped_by_bats((unsigned long)addr)) return; > + if (v_mapped_by_bats((unsigned long)addr) || > + v_mapped_by_tlbcam((unsigned long)addr)) > + return;
This is pretty pointless given that the next patch replaces both with v_mapped_by_other(). -Scott -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
