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Diffstat (limited to 'arch/s390/mm/pgtable.c')
-rw-r--r--arch/s390/mm/pgtable.c10
1 files changed, 0 insertions, 10 deletions
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 2c944bafb030..b03c665d7242 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -34,16 +34,6 @@ pgprot_t pgprot_writecombine(pgprot_t prot)
}
EXPORT_SYMBOL_GPL(pgprot_writecombine);
-pgprot_t pgprot_writethrough(pgprot_t prot)
-{
- /*
- * mio_wb_bit_mask may be set on a different CPU, but it is only set
- * once at init and only read afterwards.
- */
- return __pgprot(pgprot_val(prot) & ~mio_wb_bit_mask);
-}
-EXPORT_SYMBOL_GPL(pgprot_writethrough);
-
static inline void ptep_ipte_local(struct mm_struct *mm, unsigned long addr,
pte_t *ptep, int nodat)
{