diff options
| author | Yanfei Xu <yanfei.xu@windriver.com> | 2021-02-24 12:07:22 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-14 16:56:51 +0200 |
| commit | 2e16ad561143b97df021016e1835e5ea72ad499a (patch) | |
| tree | 5fe52b53d24207307d9ad0490137e623ebaaac8b /mm | |
| parent | 0da83a815d33e39a29391c13de3462b9b6115350 (diff) | |
mm/hugetlb: remove redundant check in preparing and destroying gigantic page
[ Upstream commit 5291c09b3edb657f23c1939750c702ba2d74932f ]
Gigantic page is a compound page and its order is more than 1. Thus it
must be available for hpage_pincount. Let's remove the redundant check
for gigantic page.
Link: https://lkml.kernel.org/r/20210202112002.73170-1-yanfei.xu@windriver.com
Signed-off-by: Yanfei Xu <yanfei.xu@windriver.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/hugetlb.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 991b5cd40267..f90dd909d017 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1252,8 +1252,7 @@ static void destroy_compound_gigantic_page(struct page *page, struct page *p = page + 1; atomic_set(compound_mapcount_ptr(page), 0); - if (hpage_pincount_available(page)) - atomic_set(compound_pincount_ptr(page), 0); + atomic_set(compound_pincount_ptr(page), 0); for (i = 1; i < nr_pages; i++, p = mem_map_next(p, page, i)) { clear_compound_head(p); @@ -1583,9 +1582,7 @@ static void prep_compound_gigantic_page(struct page *page, unsigned int order) set_compound_head(p, page); } atomic_set(compound_mapcount_ptr(page), -1); - - if (hpage_pincount_available(page)) - atomic_set(compound_pincount_ptr(page), 0); + atomic_set(compound_pincount_ptr(page), 0); } /* |