mm/hugetlb: fix missing call to restore_reserve_on_error()

Browse source

When huge_add_to_page_cache() fails, the page is freed directly without
calling restore_reserve_on_error() to restore reserve for newly allocated
pages not in page cache.  Fix this by calling restore_reserve_on_error()
when huge_add_to_page_cache fails.

[linmiaohe@huawei.com: remove err == -EEXIST check and retry logic]
  Link: https://lkml.kernel.org/r/20220823030209.57434-4-linmiaohe@huawei.com
Link: https://lkml.kernel.org/r/20220816130553.31406-4-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

...

This commit is contained in:

Miaohe Lin 2022-08-16 21:05:50 +08:00 • committed by Andrew Morton

parent 3a6bdda0b5

commit 3a5497a2da

1 changed files with 8 additions and 3 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

11

mm/hugetlb.c

View file