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Thu, 10 Sep 2026 20:24:18 +0800 (CST) Received: from kwepemk300003.china.huawei.com (unknown [7.202.195.93]) by mail.maildlp.com (Postfix) with ESMTPS id 6B6CB4057F; Thu, 10 Sep 2026 20:35:53 +0800 (CST) Received: from ubuntu (10.50.87.83) by kwepemk300003.china.huawei.com (7.202.195.93) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.2562.45; Thu, 10 Sep 2026 20:35:52 +0800 From: Kefeng Wang To: Andrew Morton CC: , Chengming Zhou , Johannes Weiner , Kairui Song , Nhat Pham , Yosry Ahmed , Kefeng Wang Subject: [PATCH v3 0/3] mm: zswap: optimize zswap invalidate and store Date: Thu, 10 Sep 2026 20:35:41 +0800 Message-ID: <20260910123544.818146-1-wangkefeng.wang@huawei.com> X-Mailer: git-send-email 2.55.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.50.87.83] X-ClientProxiedBy: kwepems100001.china.huawei.com (7.221.188.238) To kwepemk300003.china.huawei.com (7.202.195.93) X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 048AA100006 X-Stat-Signature: xwfw5j6zgc8fscw3n74ufkeq9tab6ayp X-Rspam-User: X-HE-Tag: 1789043757-935506 X-HE-Meta: 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 iYbV8GzB rCWvOSoZVjP5pCJgrlULbqOXThZ7kjegiILUy8TicxmN4XLHa8oysTatOKPgnrPeP6lArEVPxUjkqmqiVdg8f0mjEmeXYG32ZpkVZ/0UmUjIGMXz98rNmbHdKkgJlfTnAKyTIrENZ0zM8g6MTBYc8nEpop3M1nPaVpx8Fj7x4R0rL5LSsilK/R6GsJF8mtHi03HecIxn0s1xolNP9egckYLyJbz727UtI7W5LIkUzYUXXtVEObF3EwbaJ5Wiaas7HPVRHX3ju/ua4jtw= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: This series range-ifies zswap_invalidate() to skip xarray lookups when zswap is unused, and reuses it in zswap_store() to eliminate redundant per-slot lookups and open-coded logic. v3: - make zswap_invalidate() to take nr_entries and add zswap_never_enabled() into it - since all patches refreshed, so no ACK/RB added v2: - split patches and refactor zswap_invalidate(), suggested by Johannes Weiner - add patch4 to skip zswap_invalidate() in swap_range_free() Kefeng Wang (3): mm: zswap: convert zswap_invalidate() to take a range mm: zswap: skip xarray walk in zswap_invalidate() when zswap is unused mm: zswap: reuse zswap_invalidate() in zswap_store() include/linux/zswap.h | 8 ++++++-- mm/swapfile.c | 4 +--- mm/zswap.c | 45 ++++++++++++++++++++++--------------------- 3 files changed, 30 insertions(+), 27 deletions(-) -- 2.55.0