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Fri, 21 Aug 2026 06:41:12 +0000 X-Mizu-Trace-ID: e84666c61e62ed05 X-Migadu-Flow: FLOW_OUT From: Enlin Mu To: akpm@linux-foundation.org, kasong@tencent.com, qi.zheng@linux.dev, shakeel.butt@linux.dev, baohua@kernel.org, axelrasmussen@google.com, yuanchu@google.com, weixugc@google.com, hannes@cmpxchg.org, david@kernel.org, mhocko@kernel.org, ljs@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, enlin.mu@unisoc.com, enlin.mu@linux.dev Subject: [PATCH v2] mm/vmscan: fix comment logic in balance_pgdat Date: Fri, 21 Aug 2026 14:40:57 +0800 Message-Id: <20260821064057.4081-1-enlin.mu@linux.dev> X-Mailer: git-send-email 2.39.5 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 0E46B80006 X-Stat-Signature: 96z6bmn7negdqhgiz3rxx1rks6n1kn9j X-Rspam-User: X-Rspamd-Server: rspam11 X-HE-Tag: 1787294475-198153 X-HE-Meta: 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 ECH02wiN zLlqCXBVULpQaCPOOA3qEgGIxe1gdFdE/0CXMkv93b/cuF0S3ke8+ycg0zZuh2lnMPoeHCom4ThmLuCZ+RxSFB8Nf6LbC01ZLIeLCdZBFHuhLKQnPnEIoFB9ZKAv1g6YxHcFkGikNM6UvLb5Y86OufvhvwPr9x5Qks08b4s5t0l4X+/aeU3lpDYxpKUsXdZi0s+bNcSudEAIs2pk2RB2y63IyahD4R+/hYqshd10Qd2HQ52/sMEV24ijEslDtVxe7mvu126NkbyoSqPXtSBc2CjUi74N7nmJqnvDtDszZ0UTaaVmEUiA1RPcP6ZJpvOaa4BUBLoOHaA9pYxwVLTvOuXx2QA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: In balance_pgdat(), when the low watermark is met, processes sleeping on pfmemalloc_wait are woken up because they are able to safely make forward progress. However, the comment incorrectly states "they should not be able", which contradicts the actual code behavior. Fix this typo to accurately reflect the logic. No functional changes are introduced. Signed-off-by: Enlin Mu Signed-off-by: Enlin Mu --- mm/vmscan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/vmscan.c b/mm/vmscan.c index 35c3bb15ae96..8c4766b4c29c 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -7188,7 +7188,7 @@ static int balance_pgdat(pg_data_t *pgdat, int order, int highest_zoneidx) /* * If the low watermark is met there is no need for processes - * to be throttled on pfmemalloc_wait as they should not be + * to be throttled on pfmemalloc_wait as they should now be * able to safely make forward progress. Wake them */ if (waitqueue_active(&pgdat->pfmemalloc_wait) && -- 2.39.5