Linux 5.10.217

[thirdparty/kernel/stable-queue.git] / queue-5.10 / s390-mm-fix-clearing-storage-keys-for-huge-pages.patch

diff --git a/queue-5.10/s390-mm-fix-clearing-storage-keys-for-huge-pages.patch b/queue-5.10/s390-mm-fix-clearing-storage-keys-for-huge-pages.patch
deleted file mode 100644 (file)
index 6b7540f..0000000
--- a/queue-5.10/s390-mm-fix-clearing-storage-keys-for-huge-pages.patch
+++ /dev/null
@@ -1,42 +0,0 @@
-From 1f3af9390bb0fe8e6cc6021f8aa594356a77b7ff Mon Sep 17 00:00:00 2001
-From: Sasha Levin <sashal@kernel.org>
-Date: Tue, 16 Apr 2024 13:42:20 +0200
-Subject: s390/mm: Fix clearing storage keys for huge pages
-
-From: Claudio Imbrenda <imbrenda@linux.ibm.com>
-
-[ Upstream commit 412050af2ea39407fe43324b0be4ab641530ce88 ]
-
-The function __storage_key_init_range() expects the end address to be
-the first byte outside the range to be initialized. I.e. end - start
-should be the size of the area to be initialized.
-
-The current code works because __storage_key_init_range() will still loop
-over every page in the range, but it is slower than using sske_frame().
-
-Fixes: 3afdfca69870 ("s390/mm: Clear skeys for newly mapped huge guest pmds")
-Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
-Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
-Link: https://lore.kernel.org/r/20240416114220.28489-3-imbrenda@linux.ibm.com
-Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
-Signed-off-by: Sasha Levin <sashal@kernel.org>
----
- arch/s390/mm/hugetlbpage.c | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c
-index 3b5a4d25ca9b5..0ca46f5d9438f 100644
---- a/arch/s390/mm/hugetlbpage.c
-+++ b/arch/s390/mm/hugetlbpage.c
-@@ -146,7 +146,7 @@ static void clear_huge_pte_skeys(struct mm_struct *mm, unsigned long rste)
-       }
- 
-       if (!test_and_set_bit(PG_arch_1, &page->flags))
--              __storage_key_init_range(paddr, paddr + size - 1);
-+              __storage_key_init_range(paddr, paddr + size);
- }
- 
- void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
--- 
-2.43.0
-