Re: [PATCH] mm/pgtable/debug: Fix test validating architecture page table helpers

From: Christophe Leroy
Date: Thu Sep 19 2019 - 01:44:59 EST




Le 18/09/2019 Ã 09:32, Anshuman Khandual a ÃcritÂ:


On 09/13/2019 11:53 AM, Christophe Leroy wrote:
Fix build failure on powerpc.

Fix preemption imbalance.

Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxx>
---
mm/arch_pgtable_test.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/mm/arch_pgtable_test.c b/mm/arch_pgtable_test.c
index 8b4a92756ad8..f2b3c9ec35fa 100644
--- a/mm/arch_pgtable_test.c
+++ b/mm/arch_pgtable_test.c
@@ -24,6 +24,7 @@
#include <linux/swap.h>
#include <linux/swapops.h>
#include <linux/sched/mm.h>
+#include <linux/highmem.h>
#include <asm/pgalloc.h>
#include <asm/pgtable.h>
@@ -400,6 +401,8 @@ static int __init arch_pgtable_tests_init(void)
p4d_clear_tests(p4dp);
pgd_clear_tests(mm, pgdp);
+ pte_unmap(ptep);
+
pmd_populate_tests(mm, pmdp, saved_ptep);
pud_populate_tests(mm, pudp, saved_pmdp);
p4d_populate_tests(mm, p4dp, saved_pudp);


Hello Christophe,

I am planning to fold this fix into the current patch and retain your
Signed-off-by. Are you okay with it ?


No problem, do whatever is convenient for you. You can keep the signed-off-by, or use tested-by: as I tested it on PPC32.

Christophe