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Wed, 16 Apr 2025 06:51:52 -0700 (PDT) From: Johannes Weiner To: Andrew Morton Cc: Vlastimil Babka , Brendan Jackman , linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/2] mm: two allocator fixes for 6.15 Date: Wed, 16 Apr 2025 09:45:38 -0400 Message-ID: <20250416135142.778933-1-hannes@cmpxchg.org> X-Mailer: git-send-email 2.49.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Two fixes based on Vlastimil's review of the defrag_mode patches. #1 fixes a bug that can lead to memory deadlocks on high-CPU-count machines. This affects not just defrag_mode. #2 fixes an overreclaim issue when defrag_mode is enabled. Based on: commit 16176182efbf3dfce6dad18dcc8801164329d1c2 (akpm/mm-hotfixes-unstable) Author: Uros Bizjak Date: Fri Apr 4 12:24:37 2025 +0200 include/linux/mmzone.h | 2 -- mm/page_alloc.c | 12 ------------ mm/vmscan.c | 29 ++++++++++++++++++++++++++--- 3 files changed, 26 insertions(+), 17 deletions(-)