s390/mm: pmdp_get_and_clear_full optimization
Analog to ptep_get_and_clear_full define a variant of the
pmpd_get_and_clear primitive which gets the full hint from the
mmu_gather struct. This allows s390 to avoid a costly instruction
when destroying an address space.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 7e9c15c..6a37f1b 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1400,7 +1400,8 @@
* pgtable_trans_huge_withdraw after finishing pmdp related
* operations.
*/
- orig_pmd = pmdp_get_and_clear(tlb->mm, addr, pmd);
+ orig_pmd = pmdp_get_and_clear_full(tlb->mm, addr, pmd,
+ tlb->fullmm);
tlb_remove_pmd_tlb_entry(tlb, pmd, addr);
pgtable = pgtable_trans_huge_withdraw(tlb->mm, pmd);
if (is_huge_zero_pmd(orig_pmd)) {