Messages in this thread Patch in this message | | | From | Song Liu <> | Subject | [PATCH v2 2/5] mm/thp: fix node page state in split_huge_page_to_list() | Date | Thu, 17 Oct 2019 09:42:19 -0700 |
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From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Make sure split_huge_page_to_list() handle the state of shmem THP and file THP properly.
Fixes: 60fbf0ab5da1 ("mm,thp: stats for file backed THP") Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Tested-by: Song Liu <songliubraving@fb.com> Signed-off-by: Song Liu <songliubraving@fb.com> --- mm/huge_memory.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c index c5cb6dcd6c69..13cc93785006 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2789,8 +2789,13 @@ int split_huge_page_to_list(struct page *page, struct list_head *list) ds_queue->split_queue_len--; list_del(page_deferred_list(head)); } - if (mapping) - __dec_node_page_state(page, NR_SHMEM_THPS); + if (mapping) { + if (PageSwapBacked(page)) + __dec_node_page_state(page, NR_SHMEM_THPS); + else + __dec_node_page_state(page, NR_FILE_THPS); + } + spin_unlock(&ds_queue->split_queue_lock); __split_huge_page(page, list, end, flags); if (PageSwapCache(head)) { -- 2.17.1
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