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| author | Miaohe Lin <linmiaohe@huawei.com> | 2021-05-04 18:34:38 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-05 11:27:21 -0700 |
| commit | da56388c4397878a65b74f7fe97760f5aa7d316b (patch) | |
| tree | 801df6ed6c43b541b84f21e152252f0f09a343a3 /certs/blacklist.h | |
| parent | dddf31a49a0eb858bba58876c3c67dd8ea81b800 (diff) | |
| download | linux-da56388c4397878a65b74f7fe97760f5aa7d316b.tar.bz2 | |
mm/hugeltb: handle the error case in hugetlb_fix_reserve_counts()
A rare out of memory error would prevent removal of the reserve map region
for a page. hugetlb_fix_reserve_counts() handles this rare case to avoid
dangling with incorrect counts. Unfortunately, hugepage_subpool_get_pages
and hugetlb_acct_memory could possibly fail too. We should correctly
handle these cases.
Link: https://lkml.kernel.org/r/20210410072348.20437-5-linmiaohe@huawei.com
Fixes: b5cec28d36f5 ("hugetlbfs: truncate_hugepages() takes a range of pages")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Feilong Lin <linfeilong@huawei.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'certs/blacklist.h')
0 files changed, 0 insertions, 0 deletions