[to-be-updated] mm-documentation-clarify-where-the-mthp-stats-live.patch removed from -mm tree
Andrew Morton <[email protected]>
| Newsgroups | org.kernel.vger.mm-commits |
|---|---|
| Message-ID | <[email protected]> |
The quilt patch titled
Subject: mm: Documentation: clarify where the mTHP stats live
has been removed from the -mm tree. Its filename was
mm-documentation-clarify-where-the-mthp-stats-live.patch
This patch was dropped because an updated version will be issued
------------------------------------------------------
From: "Nico Pache (Red Hat)" <[email protected]>
Subject: mm: Documentation: clarify where the mTHP stats live
Date: Tue, 04 Aug 2026 13:25:05 -0600
The note about khugepaged counters references /proc/vmstat for the PMD
case, but never mentions where the mTHPs stats can be found (i.e.:
/sys/kernel/mm/transparent_hugepage/hugepages-<size>kB/stats/) Add a small
addition to this section for clarity.
Also fix a missing period while we are at it.
Link: https://lore.kernel.org/[email protected]
Signed-off-by: Nico Pache (Red Hat) <[email protected]>
Reviewed-by: Baolin Wang <[email protected]>
Suggested-by: Lorenzo Stoakes <[email protected]>
Acked-by: David Hildenbrand (Arm) <[email protected]>
Cc: Barry Song <[email protected]>
Cc: Dev Jain <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Lance Yang <[email protected]>
Cc: Liam R. Howlett <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Mike Rapoport <[email protected]>
Cc: Ryan Roberts <[email protected]>
Cc: Suren Baghdasaryan <[email protected]>
Cc: Usama Arif <[email protected]>
Cc: Vlastimil Babka <[email protected]>
Cc: Zi Yan <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
---
Documentation/admin-guide/mm/transhuge.rst | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/Documentation/admin-guide/mm/transhuge.rst~mm-documentation-clarify-where-the-mthp-stats-live
+++ a/Documentation/admin-guide/mm/transhuge.rst
@@ -224,7 +224,7 @@ khugepaged will be automatically started
(either of the per-size anon control or the top-level control are set
to "always" or "madvise"), and it'll be automatically shutdown when
all THP sizes are disabled (when both the per-size anon control and the
-top-level control are "never")
+top-level control are "never").
process THP controls
--------------------
@@ -301,7 +301,9 @@ being replaced by a PMD mapping, or (2)
hugepage of various sizes (PMD-sized or mTHP). Each may happen independently,
or together, depending on the type of memory and the failures that occur.
As such, this value should be interpreted roughly as a sign of progress,
-and counters in /proc/vmstat consulted for more accurate accounting)::
+and counters in /proc/vmstat consulted for more accurate accounting.
+Per-order mTHP collapse statistics are also available under
+/sys/kernel/mm/transparent_hugepage/hugepages-<size>kB/stats/)::
/sys/kernel/mm/transparent_hugepage/khugepaged/pages_collapsed
_
Patches currently in -mm which might be from [email protected] are