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    Subject[PATCH 1/6] mm: Make __dump_page static
    Date
    The only caller of __dump_page() now opencodes dump_page(), so
    remove it as an externally visible symbol.

    Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
    ---
    include/linux/mmdebug.h | 3 +--
    mm/debug.c | 2 +-
    mm/page_alloc.c | 3 +--
    3 files changed, 3 insertions(+), 5 deletions(-)

    diff --git a/include/linux/mmdebug.h b/include/linux/mmdebug.h
    index 5d0767cb424a..1935d4c72d10 100644
    --- a/include/linux/mmdebug.h
    +++ b/include/linux/mmdebug.h
    @@ -9,8 +9,7 @@ struct page;
    struct vm_area_struct;
    struct mm_struct;

    -extern void dump_page(struct page *page, const char *reason);
    -extern void __dump_page(struct page *page, const char *reason);
    +void dump_page(struct page *page, const char *reason);
    void dump_vma(const struct vm_area_struct *vma);
    void dump_mm(const struct mm_struct *mm);

    diff --git a/mm/debug.c b/mm/debug.c
    index 0bdda8407f71..84cdcd0f7bd3 100644
    --- a/mm/debug.c
    +++ b/mm/debug.c
    @@ -42,7 +42,7 @@ const struct trace_print_flags vmaflag_names[] = {
    {0, NULL}
    };

    -void __dump_page(struct page *page, const char *reason)
    +static void __dump_page(struct page *page, const char *reason)
    {
    struct page *head = compound_head(page);
    struct address_space *mapping;
    diff --git a/mm/page_alloc.c b/mm/page_alloc.c
    index 5a35f21b57c6..0152670c6f04 100644
    --- a/mm/page_alloc.c
    +++ b/mm/page_alloc.c
    @@ -658,8 +658,7 @@ static void bad_page(struct page *page, const char *reason)

    pr_alert("BUG: Bad page state in process %s pfn:%05lx\n",
    current->comm, page_to_pfn(page));
    - __dump_page(page, reason);
    - dump_page_owner(page);
    + dump_page(page, reason);

    print_modules();
    dump_stack();
    --
    2.30.2
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