| From 554913f600b45d73de12ad58c1ac7baa0f22a703 Mon Sep 17 00:00:00 2001 |
| From: Yang Shi <yang.shi@linux.alibaba.com> |
| Date: Mon, 13 Jan 2020 16:29:36 -0800 |
| Subject: mm: khugepaged: add trace status description for SCAN_PAGE_HAS_PRIVATE |
| |
| From: Yang Shi <yang.shi@linux.alibaba.com> |
| |
| commit 554913f600b45d73de12ad58c1ac7baa0f22a703 upstream. |
| |
| 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. |
| |
| Link: http://lkml.kernel.org/r/1574793844-2914-1-git-send-email-yang.shi@linux.alibaba.com |
| Fixes: 99cb0dbd47a1 ("mm,thp: add read-only THP support for (non-shmem) FS") |
| Signed-off-by: Yang Shi <yang.shi@linux.alibaba.com> |
| Cc: Song Liu <songliubraving@fb.com> |
| Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> |
| Cc: Anshuman Khandual <anshuman.khandual@arm.com> |
| Signed-off-by: Andrew Morton <akpm@linux-foundation.org> |
| Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| |
| --- |
| include/trace/events/huge_memory.h | 3 ++- |
| 1 file changed, 2 insertions(+), 1 deletion(-) |
| |
| --- 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 |
