+ mm-ratelimit-min_free_kbytes-adjustment-messages.patch added to mm-new branch

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: mm: ratelimit min_free_kbytes adjustment messages
has been added to the -mm mm-new branch.  Its filename is
     mm-ratelimit-min_free_kbytes-adjustment-messages.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-ratelimit-min_free_kbytes-adjustment-messages.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
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

The mm-new branch of mm.git is not included in linux-next

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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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next via various
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and is updated there most days

------------------------------------------------------
From: Breno Leitao <leitao@debian.org>
Subject: mm: ratelimit min_free_kbytes adjustment messages
Date: Mon, 09 Mar 2026 04:07:33 -0700

The "raising min_free_kbytes" pr_info message in
set_recommended_min_free_kbytes() and the "min_free_kbytes is not updated
to" pr_warn in calculate_min_free_kbytes() can spam the kernel log when
called repeatedly.

Switch the pr_info in set_recommended_min_free_kbytes() and the pr_warn in
calculate_min_free_kbytes() to their _ratelimited variants to prevent the
log spam for this message.

Link: https://lkml.kernel.org/r/20260309-thp_logs-v4-4-926b9840083e@debian.org
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Lorenzo Stoakes (Oracle) <ljs@kernel.org>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nico Pache <npache@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Usama Arif <usamaarif642@gmail.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/khugepaged.c |    4 ++--
 mm/page_alloc.c |    4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

--- a/mm/khugepaged.c~mm-ratelimit-min_free_kbytes-adjustment-messages
+++ a/mm/khugepaged.c
@@ -2693,8 +2693,8 @@ void set_recommended_min_free_kbytes(voi
 
 	if (recommended_min > min_free_kbytes) {
 		if (user_min_free_kbytes >= 0)
-			pr_info("raising min_free_kbytes from %d to %lu to help transparent hugepage allocations\n",
-				min_free_kbytes, recommended_min);
+			pr_info_ratelimited("raising min_free_kbytes from %d to %lu to help transparent hugepage allocations\n",
+					    min_free_kbytes, recommended_min);
 
 		min_free_kbytes = recommended_min;
 	}
--- a/mm/page_alloc.c~mm-ratelimit-min_free_kbytes-adjustment-messages
+++ a/mm/page_alloc.c
@@ -6513,8 +6513,8 @@ void calculate_min_free_kbytes(void)
 	if (new_min_free_kbytes > user_min_free_kbytes)
 		min_free_kbytes = clamp(new_min_free_kbytes, 128, 262144);
 	else
-		pr_warn("min_free_kbytes is not updated to %d because user defined value %d is preferred\n",
-				new_min_free_kbytes, user_min_free_kbytes);
+		pr_warn_ratelimited("min_free_kbytes is not updated to %d because user defined value %d is preferred\n",
+				    new_min_free_kbytes, user_min_free_kbytes);
 
 }
 
_

Patches currently in -mm which might be from leitao@debian.org are

selftests-mm-add-thp-sysfs-interface-test.patch
mm-khugepaged-export-set_recommended_min_free_kbytes.patch
mm-huge_memory-refactor-anon_enabled_store-with-change_anon_orders.patch
mm-huge_memory-refactor-enabled_store-with-change_enabled.patch
mm-ratelimit-min_free_kbytes-adjustment-messages.patch