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Message-ID: <20240508182955.358628-6-david@redhat.com>
Date: Wed, 8 May 2024 20:29:50 +0200
From: David Hildenbrand <david@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: kvm@...r.kernel.org,
linux-s390@...r.kernel.org,
David Hildenbrand <david@...hat.com>,
Heiko Carstens <hca@...ux.ibm.com>,
Vasily Gorbik <gor@...ux.ibm.com>,
Alexander Gordeev <agordeev@...ux.ibm.com>,
Christian Borntraeger <borntraeger@...ux.ibm.com>,
Sven Schnelle <svens@...ux.ibm.com>,
Janosch Frank <frankja@...ux.ibm.com>,
Claudio Imbrenda <imbrenda@...ux.ibm.com>,
Gerald Schaefer <gerald.schaefer@...ux.ibm.com>,
Matthew Wilcox <willy@...radead.org>,
Thomas Huth <thuth@...hat.com>
Subject: [PATCH v3 05/10] s390/uv: update PG_arch_1 comment
We removed the usage of PG_arch_1 for page tables in commit
a51324c430db ("s390/cmma: rework no-dat handling").
Let's update the comment in UV to reflect that.
Reviewed-by: Claudio Imbrenda <imbrenda@...ux.ibm.com>
Signed-off-by: David Hildenbrand <david@...hat.com>
---
arch/s390/kernel/uv.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/arch/s390/kernel/uv.c b/arch/s390/kernel/uv.c
index 914dcec27329..ecfc08902215 100644
--- a/arch/s390/kernel/uv.c
+++ b/arch/s390/kernel/uv.c
@@ -495,13 +495,12 @@ int arch_make_page_accessible(struct page *page)
return 0;
/*
- * PG_arch_1 is used in 3 places:
- * 1. for kernel page tables during early boot
- * 2. for storage keys of huge pages and KVM
- * 3. As an indication that this small folio might be secure. This can
+ * PG_arch_1 is used in 2 places:
+ * 1. for storage keys of hugetlb folios and KVM
+ * 2. As an indication that this small folio might be secure. This can
* overindicate, e.g. we set the bit before calling
* convert_to_secure.
- * As secure pages are never huge, all 3 variants can co-exists.
+ * As secure pages are never large folios, both variants can co-exists.
*/
if (!test_bit(PG_arch_1, &folio->flags))
return 0;
--
2.45.0
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