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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2019-10-18 20:20:30 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-10-19 06:32:32 -0400 |
| commit | 06d3eff62d9dc6f21e7ebeb14399f2542a36cdf5 (patch) | |
| tree | 56deea0ce399bc8dd5d57da8c7abef23895e306b | |
| parent | 2be5fbf9a91c417cd178a481538baddda3e2f38c (diff) | |
| download | linux-06d3eff62d9dc6f21e7ebeb14399f2542a36cdf5.tar.bz2 | |
mm/thp: fix node page state in split_huge_page_to_list()
Make sure split_huge_page_to_list() handles the state of shmem THP and
file THP properly.
Link: http://lkml.kernel.org/r/20191017164223.2762148-3-songliubraving@fb.com
Fixes: 60fbf0ab5da1 ("mm,thp: stats for file backed THP")
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Tested-by: Song Liu <songliubraving@fb.com>
Acked-by: Yang Shi <yang.shi@linux.alibaba.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: William Kucharski <william.kucharski@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/huge_memory.c | 9 |
1 files 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)) { |