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| author | Miaohe Lin <linmiaohe@huawei.com> | 2021-01-12 15:49:24 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-01-12 18:12:54 -0800 |
| commit | 0eb98f1588c2cc7a79816d84ab18a55d254f481c (patch) | |
| tree | 6969e5881a2b293446faa7b93923cffb580b0977 | |
| parent | f555befd185dc097ede887eb7b308c2e1c1369d4 (diff) | |
| download | lwn-0eb98f1588c2cc7a79816d84ab18a55d254f481c.tar.gz lwn-0eb98f1588c2cc7a79816d84ab18a55d254f481c.zip | |
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 <mike.kravetz@oracle.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/hugetlb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index a2602969873d..18f6ee317900 100644 --- a/mm/hugetlb.c +++ b/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; } |