+ mm-hugetlb-fix-potential-missing-huge-page-size-info.patch added to -mm tree
From: akpm@linux-foundation.org
Date: 2021-01-07 23:13:40
Also in:
mm-commits
The patch titled
Subject: mm/hugetlb: fix potential missing huge page size info
has been added to the -mm tree. Its filename is
mm-hugetlb-fix-potential-missing-huge-page-size-info.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-hugetlb-fix-potential-missing-huge-page-size-info.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-hugetlb-fix-potential-missing-huge-page-size-info.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Miaohe Lin <linmiaohe@huawei.com>
Subject: mm/hugetlb: fix potential missing huge page size info
The huge page size is encoded for VM_FAULT_HWPOISON errors only. So if we
return VM_FAULT_HWPOISON, huge page size would just be ignored.
Link: https://lkml.kernel.org/r/20210107123449.38481-1-linmiaohe@huawei.com
Fixes: aa50d3a7aa81 ("Encode huge page size for VM_FAULT_HWPOISON errors")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Mike Kravetz <redacted>
Cc: <redacted>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
mm/hugetlb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/mm/hugetlb.c~mm-hugetlb-fix-potential-missing-huge-page-size-info
+++ a/mm/hugetlb.c@@ -4371,7 +4371,7 @@ retry: * So we need to block hugepage fault by PG_hwpoison bit check. */ if (unlikely(PageHWPoison(page))) { - ret = VM_FAULT_HWPOISON | + ret = VM_FAULT_HWPOISON_LARGE | VM_FAULT_SET_HINDEX(hstate_index(h)); goto backout_unlocked; }
_ Patches currently in -mm which might be from linmiaohe@huawei.com are mm-vmallocc-fix-potential-memory-leak.patch mm-hugetlb-fix-potential-missing-huge-page-size-info.patch