From: Andrew Morton <akpm@linux-foundation.org>
To: mm-commits@vger.kernel.org,ziy@nvidia.com,vbabka@kernel.org,usama.arif@linux.dev,surenb@google.com,ryan.roberts@arm.com,rppt@kernel.org,pfalcato@suse.de,mhocko@suse.com,ljs@kernel.org,liam@infradead.org,lance.yang@linux.dev,dev.jain@arm.com,david@kernel.org,corbet@lwn.net,baolin.wang@linux.alibaba.com,baohua@kernel.org,nico.pache@linux.dev,akpm@linux-foundation.org
Subject: [merged mm-stable] mm-documentation-clarify-where-the-mthp-stats-live.patch removed from -mm tree
Date: Mon, 24 Aug 2026 18:55:40 -0700 [thread overview]
Message-ID: <20260825015540.654581F000E9@smtp.kernel.org> (raw)
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 it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: "Nico Pache (Red Hat)" <nico.pache@linux.dev>
Subject: mm: Documentation: clarify where the mTHP stats live
Date: Tue, 11 Aug 2026 06:48:39 -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/20260811-khugepaged_pte_refactor-v4-7-ddac39d61c4a@linux.dev
Signed-off-by: Nico Pache (Red Hat) <nico.pache@linux.dev>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Suggested-by: Lorenzo Stoakes <ljs@kernel.org>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Acked-by: Pedro Falcato <pfalcato@suse.de>
Reviewed-by: Lorenzo Stoakes (ARM) <ljs@kernel.org>
Reviewed-by: Lance Yang <lance.yang@linux.dev>
Cc: Barry Song <baohua@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Usama Arif <usama.arif@linux.dev>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
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 nico.pache@linux.dev are
reply other threads:[~2026-08-25 1:55 UTC|newest]
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