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Fixes: 0f87d9d30f21 ("mm/page_alloc: add an array-based interface to the bulk page allocator") Reported-by: syzbot+0123a2b8f9e623d5b443@syzkaller.appspotmail.com Signed-off-by: Zqiang --- mm/page_alloc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index d6e94cc8066c..8d7f0f5ce891 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5309,12 +5309,14 @@ unsigned long __alloc_pages_bulk(gfp_t gfp, int preferred_nid, } nr_account++; + local_unlock_irqrestore(&pagesets.lock, flags); prep_new_page(page, 0, gfp, 0); if (page_list) list_add(&page->lru, page_list); else page_array[nr_populated] = page; nr_populated++; + local_lock_irqsave(&pagesets.lock, flags); } local_unlock_irqrestore(&pagesets.lock, flags); -- 2.17.1