From nobody Tue Feb 10 02:48:12 2026 Received: from mail-pg1-f174.google.com (mail-pg1-f174.google.com [209.85.215.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7D2C3158A08 for ; Sun, 8 Sep 2024 11:45:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.215.174 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725795950; cv=none; b=LDc/ZZeXvuogn/qsraSnC+HEOIrDYlyqfgiEkaLTxgTRuFas3d1QFIGeQMQnghVixjQk/iSgOuG74ZACUxb6szHSme6OeBFqdMBu+TYAdUSsk7lPI69bU9gPYvAV1QrzLfUvOR8QTrn27lgG4u708nGN7OZNtkLOBpTRjHHUPwY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725795950; c=relaxed/simple; bh=oR3naV05tO9HRz4kvtPKoCFr1CXNpq4dqwybuFPJMjQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=frVqbHUY+ZYtwfKtNCRGXu7JLM64UsDXbARgwmgH8GcPYjRGeozKjyKz/8WvIV5jwr3WBHuKR4U3o3UijZC953VGztnxM9r1em5BnDBG0A0/WVp/ZBpOXRtfl+FlzSGZo1lS/0wQAffGoLG4i/gNENbGKRRD2gcg2juQjjsBGqs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org; spf=pass smtp.mailfrom=chromium.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b=BgYqFs9Q; arc=none smtp.client-ip=209.85.215.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chromium.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="BgYqFs9Q" Received: by mail-pg1-f174.google.com with SMTP id 41be03b00d2f7-7d4f85766f0so2767784a12.2 for ; Sun, 08 Sep 2024 04:45:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1725795949; x=1726400749; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=IcgEvHbf96KCRkopD9YVwbrf1iPmkYihwVMDRIbnuTE=; b=BgYqFs9Q+SXJRvhSqlBZuATvOaDdXO9yTyfWD83ahwBfJ4IJIOPThp0T2m800/HaxA vBEHYcgx7TxpvW2ZwYNQj0GdMQXThZOMqs2SJLpriqFdW8t1hdNlGcIcezZtB/JtCzdx /3Q+APEpYb76HmxzMDNdluAOa248ll/O1bBb4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1725795949; x=1726400749; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=IcgEvHbf96KCRkopD9YVwbrf1iPmkYihwVMDRIbnuTE=; b=gdJtkHtGudYq+Ie8jEqELHSsZsQMawRq7wd5yQxEbeyoTfXT00oRj/B/zuM9uYCsij wyLPByu+39XuHKtgnHkUwG7c4tP+KV5oEOOsJkBnBN4+Z5WRdq9SEJYpe8rADS5wV7R0 ZkU9/A5hQ7so0WyGOua5tZ88r10c+pYlU2YUNfobOaF/iiCyGh82/GDeYD4DLmqPyGKj AhZOsTZ7lw4lKnCndi94yxTgt+X7By8/JjAHWs8cZzS0kufoMHbDiWkYQVBUQhd9S7jo iAIV56Ecx9R2aTLn22GJk3tR1Cy4GcWQk8Exs3gEhx6kYkHBOKxQOcMedrptcwgJdRgw D9CQ== X-Forwarded-Encrypted: i=1; AJvYcCXyY67lr309sMHq6kDny1xya9BVA4XAIo8ptTgOVxIrj+rvdYNWAM0XAsZVgUw7WqViQhWQxwOUbdsdfgU=@vger.kernel.org X-Gm-Message-State: AOJu0YzPFYeTNEochE8HLk0SH/3ppZMNFx2E9ULvZnSZFSJ792iYhxI1 Qxpt+7wpWZfV5+V1dmIhHDhgj7T2zQ45bDSH8KPstA8Taskge73y5jDKJkX5mg== X-Google-Smtp-Source: AGHT+IG1zHRcC5WnMATiGeCahyvvtTRg9LKd2Hphw+MiISdIsqZGnvxrtvnP3RHRVURf4Yh1ewzGaQ== X-Received: by 2002:a17:902:e74f:b0:207:2697:da17 with SMTP id d9443c01a7336-2072697dbdemr13884195ad.23.1725795948875; Sun, 08 Sep 2024 04:45:48 -0700 (PDT) Received: from tigerii.tok.corp.google.com ([2401:fa00:8f:203:5879:695a:4656:45ff]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-20710f1f3f6sm19087065ad.226.2024.09.08.04.45.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 08 Sep 2024 04:45:48 -0700 (PDT) From: Sergey Senozhatsky To: Minchan Kim , Andrew Morton Cc: Richard Chang , linux-kernel@vger.kernel.org, Sergey Senozhatsky Subject: [PATCHv2 1/3] zram: introduce ZRAM_PP_SLOT flag Date: Sun, 8 Sep 2024 20:45:11 +0900 Message-ID: <20240908114541.3025351-2-senozhatsky@chromium.org> X-Mailer: git-send-email 2.46.0.469.g59c65b2a67-goog In-Reply-To: <20240908114541.3025351-1-senozhatsky@chromium.org> References: <20240908114541.3025351-1-senozhatsky@chromium.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This flag will indicate that the slot was selected as a candidate slot for post-processing (pp) and was assigned to a pp bucket. Signed-off-by: Sergey Senozhatsky --- drivers/block/zram/zram_drv.c | 10 ++++++++-- drivers/block/zram/zram_drv.h | 1 + 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index 1f1bf175a6c3..a14aef6bf634 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -178,6 +178,7 @@ static inline u32 zram_get_priority(struct zram *zram, = u32 index) static void zram_accessed(struct zram *zram, u32 index) { zram_clear_flag(zram, index, ZRAM_IDLE); + zram_clear_flag(zram, index, ZRAM_PP_SLOT); #ifdef CONFIG_ZRAM_TRACK_ENTRY_ACTIME zram->table[index].ac_time =3D ktime_get_boottime(); #endif @@ -659,8 +660,9 @@ static ssize_t writeback_store(struct device *dev, goto next; =20 if (zram_test_flag(zram, index, ZRAM_WB) || - zram_test_flag(zram, index, ZRAM_SAME) || - zram_test_flag(zram, index, ZRAM_UNDER_WB)) + zram_test_flag(zram, index, ZRAM_SAME) || + zram_test_flag(zram, index, ZRAM_PP_SLOT) || + zram_test_flag(zram, index, ZRAM_UNDER_WB)) goto next; =20 if (mode & IDLE_WRITEBACK && @@ -1368,6 +1370,9 @@ static void zram_free_page(struct zram *zram, size_t = index) goto out; } =20 + if (zram_test_flag(zram, index, ZRAM_PP_SLOT)) + zram_clear_flag(zram, index, ZRAM_PP_SLOT); + handle =3D zram_get_handle(zram, index); if (!handle) return; @@ -1927,6 +1932,7 @@ static ssize_t recompress_store(struct device *dev, if (zram_test_flag(zram, index, ZRAM_WB) || zram_test_flag(zram, index, ZRAM_UNDER_WB) || zram_test_flag(zram, index, ZRAM_SAME) || + zram_test_flag(zram, index, ZRAM_PP_SLOT) || zram_test_flag(zram, index, ZRAM_INCOMPRESSIBLE)) goto next; =20 diff --git a/drivers/block/zram/zram_drv.h b/drivers/block/zram/zram_drv.h index b976824ead67..e0578b3542ce 100644 --- a/drivers/block/zram/zram_drv.h +++ b/drivers/block/zram/zram_drv.h @@ -50,6 +50,7 @@ enum zram_pageflags { ZRAM_SAME, /* Page consists the same element */ ZRAM_WB, /* page is stored on backing_device */ ZRAM_UNDER_WB, /* page is under writeback */ + ZRAM_PP_SLOT, /* Selected for post-processing */ ZRAM_HUGE, /* Incompressible page */ ZRAM_IDLE, /* not accessed page since last idle marking */ ZRAM_INCOMPRESSIBLE, /* none of the algorithms could compress it */ --=20 2.46.0.469.g59c65b2a67-goog