diff options
| author | Wei Yang <[email protected]> | 2020-10-13 16:56:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2020-10-13 18:38:34 -0700 |
| commit | 2f37511cb6c2a59b67f8f13ad206a0298992eaf5 (patch) | |
| tree | cf21859e917fe499e74110732d8590a85545a31d | |
| parent | 15a8d68e9dc23dc9def4bd7e9563db60f4f86580 (diff) | |
mm/hugetlb: narrow the hugetlb_lock protection area during preparing huge page
set_hugetlb_cgroup_[rsvd] just manipulate page local data, which is not
necessary to be protected by hugetlb_lock.
Let's take this out.
Signed-off-by: Wei Yang <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Reviewed-by: Baoquan He <[email protected]>
Reviewed-by: Mike Kravetz <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>
| -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 a3aea2c1181b..a5068a38d8af 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1504,9 +1504,9 @@ static void prep_new_huge_page(struct hstate *h, struct page *page, int nid) { INIT_LIST_HEAD(&page->lru); set_compound_page_dtor(page, HUGETLB_PAGE_DTOR); - spin_lock(&hugetlb_lock); set_hugetlb_cgroup(page, NULL); set_hugetlb_cgroup_rsvd(page, NULL); + spin_lock(&hugetlb_lock); h->nr_huge_pages++; h->nr_huge_pages_node[nid]++; spin_unlock(&hugetlb_lock); |