Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1622996

[PATCH] powerpc/mm: Fix missing page attributes in page table dump

Show all headers | View raw

On some targets, _PAGE_RW is 0 and this is _PAGE_RO which is used.
There is also _PAGE_SHARED that is missing

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
 arch/powerpc/mm/dump_linuxpagetables.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/powerpc/mm/dump_linuxpagetables.c b/arch/powerpc/mm/dump_linuxpagetables.c
index 05109d7fa027..22d2433333f5 100644
--- a/arch/powerpc/mm/dump_linuxpagetables.c
+++ b/arch/powerpc/mm/dump_linuxpagetables.c
@@ -119,8 +119,13 @@ static const struct flag_info flag_array[] = {
 		.set	= "user",
 		.clear	= "    ",
 	}, {
+#if _PAGE_RO == 0
 		.mask	= _PAGE_RW,
 		.val	= _PAGE_RW,
+#else
+		.mask	= _PAGE_RO,
+		.val	= 0,
+#endif
 		.set	= "rw",
 		.clear	= "ro",
 	}, {
@@ -207,6 +212,10 @@ static const struct flag_info flag_array[] = {
 		.mask	= _PAGE_SPECIAL,
 		.val	= _PAGE_SPECIAL,
 		.set	= "special",
+	}, {
+		.mask	= _PAGE_SHARED,
+		.val	= _PAGE_SHARED,
+		.set	= "shared",
 	}
 };
 
-- 
2.12.0

Back to linux.kernel | Previous | Next | Find similar | Unroll thread

Thread

[PATCH] powerpc/mm: Fix missing page attributes in page table dump Christophe Leroy <christophe.leroy@c-s.fr> - 2017-04-13 14:50 +0200

csiph-web