Re: [PATCH] mm: khugepaged: add trace status description for SCAN_PAGE_HAS_PRIVATE

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On 11/26/19 12:57 AM, Anshuman Khandual wrote:

On 11/25/2019 11:57 PM, Yang Shi wrote:
The commit 99cb0dbd47a15d395bf3faa78dc122bc5efe3fc0 ("mm,thp: add
Reduce the commit SHA ID here to just 12 digits instead ?

Yes, sure.


read-only THP support for (non-shmem) FS") instroduced a new khugepaged
s/instroduced/introduced/

Will fix.


scan result: SCAN_PAGE_HAS_PRIVATE, but the corresponding description
for trance events were not added.
s/trance/trace/

My fat finger :-(


Cc: Song Liu <songliubraving@xxxxxx>
Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Signed-off-by: Yang Shi <yang.shi@xxxxxxxxxxxxxxxxx>
---
  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..d49fbce 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,	"has_private")			\
Majority of the SCAN_PAGE_* scan results have page_ in the front. Hence we
should just follow same pattern here and make it 'page_has_private' instead.

Some do start with "page_", anyway either is fine to me.


#undef EM
  #undef EMe






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