linux-kernel - [PATCH 6.1.y 0/7] Backport patches for DAMON merge regions fix

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Message-Id: <20240716175205.51280-1-sj@kernel.org>
Date: Tue, 16 Jul 2024 10:51:58 -0700
From: SeongJae Park <sj@...nel.org>
To: stable@...r.kernel.org,
	gregkh@...uxfoundation.org
Cc: SeongJae Park <sj@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	damon@...ts.linux.dev,
	linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 6.1.y 0/7] Backport patches for DAMON merge regions fix

Commit 310d6c15e910 ("mm/damon/core: merge regions aggressively when
max_nr_regions") causes a build warning [1] on 6.1.y.  That was due to
unnecessarily strict type check from max().

Fix the warning by backporting a minmax.h upstream commit that made the
type check less strict for unnecessary case, and upstream commits that
it depends on.

Note that all patches except the third one ("minmax: fix header
inclusions") are clean cherry-picks of upstream commit.  For the third
one, a minor conflict fix was needed.

[1] https://lore.kernel.org/2024071519-janitor-robe-779f@gregkh

Andy Shevchenko (1):
  minmax: fix header inclusions

David Laight (3):
  minmax: allow min()/max()/clamp() if the arguments have the same
    signedness.
  minmax: allow comparisons of 'int' against 'unsigned char/short'
  minmax: relax check to allow comparison between unsigned arguments and
    signed constants

Jason A. Donenfeld (2):
  minmax: sanity check constant bounds when clamping
  minmax: clamp more efficiently by avoiding extra comparison

SeongJae Park (1):
  mm/damon/core: merge regions aggressively when max_nr_regions is unmet

 include/linux/minmax.h | 89 ++++++++++++++++++++++++++++++------------
 mm/damon/core.c        | 21 +++++++++-
 2 files changed, 83 insertions(+), 27 deletions(-)

base-commit: 291e563ecab1ea89c70172ecf0d6bff7b725d3cb
-- 
2.39.2