From nobody Fri Dec 19 17:45:20 2025 Received: from dggsgout11.his.huawei.com (dggsgout11.his.huawei.com [45.249.212.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9FDDA1E5711; Sat, 24 May 2025 06:18:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=45.249.212.51 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748067504; cv=none; b=MOLjeJWTTvuIll8LcNgDLxwhEYcCZrXqI1ZRTT5P9TdVnGXc9zB9qEHMWDHSomlbzAHvtdfrdVhUVDT8WJSEG/b44gxeOzgv57cGVsS0Mk/1bTMKWLnZo3gAxjPZ9zTAMCQFgsb7jCLhmgsKpjZChzxNUs1f4kjXFE92KRB5a+M= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748067504; c=relaxed/simple; bh=o8zqeosfdRUrjMknHUDsgW0jqq1gEF4Dv7+TYluWojk=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=K4PJnmmGNi56jBWZC9z0YbVpXAMEff4odFu9pj0+TYacIV/aHB5g/bjA6DHp7FTxGH9r2sDCrdxOKsaGOEZkRs9AcaFokJUB7lhzYCUy5cOTRjAS8LYnIueunX/3pqhT+n3ltrfySdYo/zhGxrQYoFRtoEhM1jh+ul0PIB+Y/Bg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com; spf=none smtp.mailfrom=huaweicloud.com; arc=none smtp.client-ip=45.249.212.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.163.216]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4b4Bf65SgJz4f3jMQ; Sat, 24 May 2025 14:17:50 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.128]) by mail.maildlp.com (Postfix) with ESMTP id 690C71A140E; Sat, 24 May 2025 14:18:17 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.104.67]) by APP4 (Coremail) with SMTP id gCh0CgCnCl+dZDFo3etkNQ--.42979S16; Sat, 24 May 2025 14:18:17 +0800 (CST) From: Yu Kuai To: hch@lst.de, xni@redhat.com, colyli@kernel.org, song@kernel.org, yukuai3@huawei.com Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org, yukuai1@huaweicloud.com, yi.zhang@huawei.com, yangerkun@huawei.com, johnny.chenyi@huawei.com Subject: [PATCH 12/23] md/md-bitmap: add macros for lockless bitmap Date: Sat, 24 May 2025 14:13:09 +0800 Message-Id: <20250524061320.370630-13-yukuai1@huaweicloud.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20250524061320.370630-1-yukuai1@huaweicloud.com> References: <20250524061320.370630-1-yukuai1@huaweicloud.com> 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 X-CM-TRANSID: gCh0CgCnCl+dZDFo3etkNQ--.42979S16 X-Coremail-Antispam: 1UD129KBjvJXoW7ZF13JFy8trW5AFyftw1DZFb_yoW8uFyDpF 92qr9akr13JFsrXr18Ja47ua45J3s2yrZxKryku3yrCFyYvrW3Ary8W3W7J34kWF1fJFZI gF15K3s5W3srurJanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUmS14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_JF0E3s1l82xGYI kIc2x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2 z4x0Y4vE2Ix0cI8IcVAFwI0_Ar0_tr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F 4UJwA2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oVCq 3wAS0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7 IYx2IY67AKxVWUJVWUGwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r4U M4x0Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x02628vn2 kIc2xKxwCY1x0262kKe7AKxVWUtVW8ZwCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkE bVWUJVW8JwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67 AF67kF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVW8JVW5JwCI 42IY6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F4UJwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF 4lIxAIcVC2z280aVAFwI0_Gr0_Cr1lIxAIcVC2z280aVCY1x0267AKxVW8Jr0_Cr1UYxBI daVFxhVjvjDU0xZFpf9x0JUQFxUUUUUU= X-CM-SenderInfo: 51xn3trlr6x35dzhxuhorxvhhfrp/ Content-Type: text/plain; charset="utf-8" From: Yu Kuai Also move other values to md-bitmap.h and update comments. Signed-off-by: Yu Kuai Reviewed-by: Hannes Reinecke --- drivers/md/md-bitmap.c | 9 --------- drivers/md/md-bitmap.h | 17 +++++++++++++++++ 2 files changed, 17 insertions(+), 9 deletions(-) diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c index 17d41a7b30ce..689d5dba9328 100644 --- a/drivers/md/md-bitmap.c +++ b/drivers/md/md-bitmap.c @@ -36,15 +36,6 @@ #include "md-bitmap.h" #include "md-cluster.h" =20 -#define BITMAP_MAJOR_LO 3 -/* version 4 insists the bitmap is in little-endian order - * with version 3, it is host-endian which is non-portable - * Version 5 is currently set only for clustered devices - */ -#define BITMAP_MAJOR_HI 4 -#define BITMAP_MAJOR_CLUSTERED 5 -#define BITMAP_MAJOR_HOSTENDIAN 3 - /* * in-memory bitmap: * diff --git a/drivers/md/md-bitmap.h b/drivers/md/md-bitmap.h index f2d79c8a23b7..d2cdf831ef1a 100644 --- a/drivers/md/md-bitmap.h +++ b/drivers/md/md-bitmap.h @@ -18,10 +18,27 @@ typedef __u16 bitmap_counter_t; #define RESYNC_MASK ((bitmap_counter_t) (1 << (COUNTER_BITS - 2))) #define COUNTER_MAX ((bitmap_counter_t) RESYNC_MASK - 1) =20 +/* + * version 3 is host-endian order, this is deprecated and not used for new + * array + */ +#define BITMAP_MAJOR_LO 3 +#define BITMAP_MAJOR_HOSTENDIAN 3 +/* version 4 is little-endian order, the default value */ +#define BITMAP_MAJOR_HI 4 +/* version 5 is only used for cluster */ +#define BITMAP_MAJOR_CLUSTERED 5 +/* version 6 is only used for lockless bitmap */ +#define BITMAP_MAJOR_LOCKLESS 6 + +#define BITMAP_SB_SIZE 1024 /* use these for bitmap->flags and bitmap->sb->state bit-fields */ enum bitmap_state { BITMAP_STALE =3D 1, /* the bitmap file is out of date or had -EIO */ BITMAP_WRITE_ERROR =3D 2, /* A write error has occurred */ + BITMAP_FIRST_USE =3D 3, /* llbitmap is just created */ + BITMAP_CLEAN =3D 4, /* llbitmap is created with assume_clean */ + BITMAP_DAEMON_BUSY =3D 5, /* llbitmap daemon is not finished after daemon= _sleep */ BITMAP_HOSTENDIAN =3D15, }; =20 --=20 2.39.2