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* + docs-mm-damon-design-accurate-semantics-of-nr_snapshots.patch added to mm-new branch
@ 2026-08-31 23:15 Andrew Morton
  0 siblings, 0 replies; only message in thread
From: Andrew Morton @ 2026-08-31 23:15 UTC (permalink / raw)
  To: mm-commits, vbabka, surenb, sj, rppt, rdunlap, mhocko, ljs, liam,
	david, corbet, aethernet65535, akpm


The patch titled
     Subject: docs/mm/damon/design: accurate semantics of nr_snapshots
has been added to the -mm mm-new branch.  Its filename is
     docs-mm-damon-design-accurate-semantics-of-nr_snapshots.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/docs-mm-damon-design-accurate-semantics-of-nr_snapshots.patch

This patch will later appear in the mm-new branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
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fixup patches in mm-new.

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If a few days of testing in mm-new is successful, the patch will me moved
into mm.git's mm-unstable branch, which is included in linux-next

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------------------------------------------------------
From: Liew Rui Yan <aethernet65535@gmail.com>
Subject: docs/mm/damon/design: accurate semantics of nr_snapshots
Date: Mon, 31 Aug 2026 08:02:24 -0700

Patch series "docs/mm/damon/design: add explanation of nr_snapshots", v3.

Add an explanation of nr_snapshots to avoid misunderstandings.


This patch (of 3):

Change "tried to be applied" -> "completely tried to be applied" to
maintain consistency between the documentation and the code.

Link: https://lore.kernel.org/20260831150227.83416-1-sj@kernel.org
Link: https://lore.kernel.org/20260831150227.83416-2-sj@kernel.org
Signed-off-by: Liew Rui Yan <aethernet65535@gmail.com>
Signed-off-by: SJ Park <sj@kernel.org>
Reviewed-by: SJ Park <sj@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 Documentation/mm/damon/design.rst |    4 ++--
 include/linux/damon.h             |    3 ++-
 2 files changed, 4 insertions(+), 3 deletions(-)

--- a/Documentation/mm/damon/design.rst~docs-mm-damon-design-accurate-semantics-of-nr_snapshots
+++ a/Documentation/mm/damon/design.rst
@@ -846,8 +846,8 @@ scheme's execution.
 - ``nr_applied``: Total number of regions that the scheme is applied.
 - ``sz_applied``: Total size of regions that the scheme is applied.
 - ``qt_exceeds``: Total number of times the quota of the scheme has exceeded.
-- ``nr_snapshots``: Total number of DAMON snapshots that the scheme is tried to
-  be applied.
+- ``nr_snapshots``: Total number of DAMON snapshots that the scheme is
+  completely tried to be applied.
 - ``max_nr_snapshots``: Upper limit of ``nr_snapshots``.
 
 "A scheme is tried to be applied to a region" means DAMOS core logic determined
--- a/include/linux/damon.h~docs-mm-damon-design-accurate-semantics-of-nr_snapshots
+++ a/include/linux/damon.h
@@ -357,7 +357,8 @@ struct damos_watermarks {
  *		Total bytes that passed ops layer-handled DAMOS filters.
  * @qt_exceeds: Total number of times the quota of the scheme has exceeded.
  * @nr_snapshots:
- *		Total number of DAMON snapshots that the scheme has tried.
+ *		Total number of DAMON snapshots that the scheme is completely
+ *		tried to be applied.
  *
  * "Tried an action to a region" in this context means the DAMOS core logic
  * determined the region as eligible to apply the action.  The access pattern
_

Patches currently in -mm which might be from aethernet65535@gmail.com are

docs-mm-damon-design-accurate-semantics-of-nr_snapshots.patch
docs-mm-damon-design-difference-between-watermarks-and-nr_snapshots.patch
docs-mm-damon-design-fix-typo-of-max_nr_snapshots.patch


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