On 11/27/2019 12:14 AM, Yang Shi wrote:
> The commit 99cb0dbd47a1 ("mm,thp: add read-only THP support for (non-shmem)
> FS") introduced a new khugepaged scan result: SCAN_PAGE_HAS_PRIVATE, but
> the corresponding description for trace events were not added.
>
> Cc: Song Liu <songliubraving@xxxxxx>
> Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
> Cc: Anshuman Khandual <anshuman.khandual@xxxxxxx>
> Signed-off-by: Yang Shi <yang.shi@xxxxxxxxxxxxxxxxx>
> ---
> v2: *Adopted the comments from Anshuman Khandual
Reviewed-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>
>
> include/trace/events/huge_memory.h | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/include/trace/events/huge_memory.h b/include/trace/events/huge_memory.h
> index dd4db33..d82a0f4 100644
> --- a/include/trace/events/huge_memory.h
> +++ b/include/trace/events/huge_memory.h
> @@ -31,7 +31,8 @@
> EM( SCAN_ALLOC_HUGE_PAGE_FAIL, "alloc_huge_page_failed") \
> EM( SCAN_CGROUP_CHARGE_FAIL, "ccgroup_charge_failed") \
> EM( SCAN_EXCEED_SWAP_PTE, "exceed_swap_pte") \
> - EMe(SCAN_TRUNCATED, "truncated") \
> + EM( SCAN_TRUNCATED, "truncated") \
> + EMe(SCAN_PAGE_HAS_PRIVATE, "page_has_private") \
>
> #undef EM
> #undef EMe
>
