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Fri, 15 Jan 2021 12:51:21 +0000 (UTC) Received: by mail-pj1-f47.google.com with SMTP id my11so5480780pjb.1 for ; Fri, 15 Jan 2021 04:51:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=en8qVXfeyVDqIIP8px6ejCNcDJPI30a78TjFLPR7Emo=; b=gSveUx2iscz2XVqox7kgx2aC826PqbTW5LQGAxIMyQpp1IKFTUdQhSOL2xfJrz9tcN mVbNIMy2wF24Yy0Crl8F9sdwYyMYe7OOkoZBLGaGqkH6HEoPHi/Z/K4whKyw8GHWgN64 3MMZMNnxzVeWl7xlHeRD/52qnh4l6ul6jMJHUki6yZZswJ/u2/GHCT54p2TCuj/3/ZKo 3CbjTZWuYIJFLmhVahvSyjfqHqVny9mJ05o36FtwR0lHUKa1U2ybhtXUAxTfQ36M9iB1 toYjk/EV3MFmIAGDvNnfF0vSER2eid/B3Qa0fdGZ4R0ZN53aGxq8xaE4trghArmB+nkw AYTA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=en8qVXfeyVDqIIP8px6ejCNcDJPI30a78TjFLPR7Emo=; 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Such a failure would be unexpected and wrong. Only export set_page_huge_active, just leave clear_page_huge_active as static. Because there are no external users. Fixes: 70c3547e36f5 (hugetlbfs: add hugetlbfs_fallocate()) Signed-off-by: Muchun Song Acked-by: Michal Hocko Reviewed-by: Mike Kravetz Reviewed-by: Oscar Salvador Cc: stable@vger.kernel.org --- fs/hugetlbfs/inode.c | 3 ++- include/linux/hugetlb.h | 2 ++ mm/hugetlb.c | 2 +- 3 files changed, 5 insertions(+), 2 deletions(-) diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index b5c109703daa..21c20fd5f9ee 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -735,9 +735,10 @@ static long hugetlbfs_fallocate(struct file *file, i= nt mode, loff_t offset, =20 mutex_unlock(&hugetlb_fault_mutex_table[hash]); =20 + set_page_huge_active(page); /* * unlock_page because locked by add_to_page_cache() - * page_put due to reference from alloc_huge_page() + * put_page() due to reference from alloc_huge_page() */ unlock_page(page); put_page(page); diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index ebca2ef02212..b5807f23caf8 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -770,6 +770,8 @@ static inline void huge_ptep_modify_prot_commit(struc= t vm_area_struct *vma, } #endif =20 +void set_page_huge_active(struct page *page); + #else /* CONFIG_HUGETLB_PAGE */ struct hstate {}; =20 diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 1f3bf1710b66..4741d60f8955 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -1348,7 +1348,7 @@ bool page_huge_active(struct page *page) } =20 /* never called for tail page */ -static void set_page_huge_active(struct page *page) +void set_page_huge_active(struct page *page) { VM_BUG_ON_PAGE(!PageHeadHuge(page), page); SetPagePrivate(&page[1]); --=20 2.11.0