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[11/11] mm: khugepaged: add trace status description for SCAN_PAGE_HAS_PRIVATE

Message ID 20200114002936.cnqbu%akpm@linux-foundation.org
State New
Headers show
Series [01/11] mm, thp: tweak reclaim/compaction effort of local-only and all-node allocations | expand

Commit Message

Andrew Morton Jan. 14, 2020, 12:29 a.m. UTC
From: Yang Shi <yang.shi@linux.alibaba.com>
Subject: mm: khugepaged: add trace status description for SCAN_PAGE_HAS_PRIVATE

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>
---

 include/trace/events/huge_memory.h |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

--- a/include/trace/events/huge_memory.h~mm-khugepaged-add-trace-status-description-for-scan_page_has_private
+++ a/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