diff options
| author | Naoya Horiguchi <naoya.horiguchi@nec.com> | 2022-04-29 09:16:02 +0300 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-04-29 09:16:02 +0300 |
| commit | 2ba2b008a8bf5fd268a43d03ba79e0ad464d6836 (patch) | |
| tree | 0990b3ae42d40620e3880c4aed50047a1746476a /mm/memory-failure.c | |
| parent | f361e2462e8cccdd9231aa3274690705a2ea35a2 (diff) | |
| download | linux-2ba2b008a8bf5fd268a43d03ba79e0ad464d6836.tar.xz | |
Revert "mm/memory-failure.c: fix race with changing page compound again"
Reverts commit 888af2701db7 ("mm/memory-failure.c: fix race with changing
page compound again") because now we fetch the page refcount under
hugetlb_lock in try_memory_failure_hugetlb() so that the race check is no
longer necessary.
Link: https://lkml.kernel.org/r/20220408135323.1559401-4-naoya.horiguchi@linux.dev
Signed-off-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Suggested-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memory-failure.c')
| -rw-r--r-- | mm/memory-failure.c | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/mm/memory-failure.c b/mm/memory-failure.c index 44510efd0829..8af37f76e7ba 100644 --- a/mm/memory-failure.c +++ b/mm/memory-failure.c @@ -733,7 +733,6 @@ static const char * const action_page_types[] = { [MF_MSG_BUDDY] = "free buddy page", [MF_MSG_DAX] = "dax page", [MF_MSG_UNSPLIT_THP] = "unsplit thp", - [MF_MSG_DIFFERENT_PAGE_SIZE] = "different page size", [MF_MSG_UNKNOWN] = "unknown page", }; @@ -1605,16 +1604,6 @@ retry: return res == MF_RECOVERED ? 0 : -EBUSY; } - /* - * The page could have changed compound pages due to race window. - * If this happens just bail out. - */ - if (!PageHuge(p) || compound_head(p) != head) { - action_result(pfn, MF_MSG_DIFFERENT_PAGE_SIZE, MF_IGNORED); - res = -EBUSY; - goto out; - } - page_flags = head->flags; /* |