From nobody Wed Dec 17 10:46:38 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 CB0371E2823; Mon, 12 May 2025 01:28:06 +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=1747013290; cv=none; b=PbvLXFJagFZAe/VdMQfuCjKbAY8NM8K4dICQEuGXS/e+H/tphHcPk+XI3tz1dKegOh4nfTqzERzg6DppUXiifJw4u5r8r5PqsROMsZk1TcRa1bkUzjKX6xQPMm12X+ZG01CU4V0dEBWJcBRrKy7kbtf+aBXqArUeoGzFLGQ48jw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747013290; c=relaxed/simple; bh=GKPCrWIEUucXkdH2KT+WHWhcfLII+k+fcCarYpr3v28=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=oPrtdFlSCpi+6kwbQiEwiWO0NfQBZ87NzS4HcUSLRwROtDq4JC2qi8jMbrYb7Dkdaxfl14C4jJgCwThbJIavX0zeUTuk4P4sbQrSrZqJYAo65zYUtOjuaLO9EIF7Ot9ugsR9wfsekuHd8oj2guTHvRriF0JbOy061jJbArXtknE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=huaweicloud.com; spf=pass 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=pass smtp.mailfrom=huaweicloud.com Received: from mail.maildlp.com (unknown [172.19.163.216]) by dggsgout11.his.huawei.com (SkyGuard) with ESMTP id 4Zwhmm3pXPz4f3lDc; Mon, 12 May 2025 09:27:36 +0800 (CST) Received: from mail02.huawei.com (unknown [10.116.40.128]) by mail.maildlp.com (Postfix) with ESMTP id AD33B1A1B8C; Mon, 12 May 2025 09:28:02 +0800 (CST) Received: from huaweicloud.com (unknown [10.175.104.67]) by APP4 (Coremail) with SMTP id gCh0CgCnC2CdTiFoNFCWMA--.55093S5; Mon, 12 May 2025 09:28:02 +0800 (CST) From: Yu Kuai To: hch@lst.de, xni@redhat.com, colyli@kernel.org, agk@redhat.com, snitzer@kernel.org, mpatocka@redhat.com, song@kernel.org, yukuai3@huawei.com Cc: linux-kernel@vger.kernel.org, dm-devel@lists.linux.dev, linux-raid@vger.kernel.org, yukuai1@huaweicloud.com, yi.zhang@huawei.com, yangerkun@huawei.com, johnny.chenyi@huawei.com Subject: [PATCH RFC md-6.16 v3 01/19] md/md-bitmap: add {start, end}_discard in bitmap_operations Date: Mon, 12 May 2025 09:19:09 +0800 Message-Id: <20250512011927.2809400-2-yukuai1@huaweicloud.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20250512011927.2809400-1-yukuai1@huaweicloud.com> References: <20250512011927.2809400-1-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: gCh0CgCnC2CdTiFoNFCWMA--.55093S5 X-Coremail-Antispam: 1UD129KBjvdXoW7XFykKF45Aw13JFyxuF4Durg_yoWfCrg_C3 y09Fy0gFyrWr9Ykr13Xw4FvrWqqw48GF1DWFyFgFWrZFn3Aw18Cr929ws5tr1xZFyUAa43 tryUWr17Xw4qgjkaLaAFLSUrUUUUjb8apTn2vfkv8UJUUUU8Yxn0WfASr-VFAUDa7-sFnT 9fnUUIcSsGvfJTRUUUbkxFF20E14v26rWj6s0DM7CY07I20VC2zVCF04k26cxKx2IYs7xG 6rWj6s0DM7CIcVAFz4kK6r1j6r18M28IrcIa0xkI8VA2jI8067AKxVWUGwA2048vs2IY02 0Ec7CjxVAFwI0_Gr0_Xr1l8cAvFVAK0II2c7xJM28CjxkF64kEwVA0rcxSw2x7M28EF7xv wVC0I7IYx2IY67AKxVW7JVWDJwA2z4x0Y4vE2Ix0cI8IcVCY1x0267AKxVW8Jr0_Cr1UM2 8EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I0E14v26rxl6s0DM2AI xVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20x vE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xv r2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E8cxan2IY04 v7MxkF7I0En4kS14v26r1q6r43MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j 6r4UMI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwVAFwI0_JrI_JrWlx4CE17CEb7 AF67AKxVWUtVW8ZwCIc40Y0x0EwIxGrwCI42IY6xIIjxv20xvE14v26r1j6r1xMIIF0xvE 2Ix0cI8IcVCY1x0267AKxVW8JVWxJwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcV C2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVW8JVW8JrUvcSsGvfC2Kfnx nUUI43ZEXa7VUjrHUDUUUUU== X-CM-SenderInfo: 51xn3trlr6x35dzhxuhorxvhhfrp/ Content-Type: text/plain; charset="utf-8" From: Yu Kuai Prepare to support discard in new md bitmap. Signed-off-by: Yu Kuai Reviewed-by: Christoph Hellwig --- drivers/md/md-bitmap.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/md/md-bitmap.h b/drivers/md/md-bitmap.h index d3d50629af91..c3fc051c88e9 100644 --- a/drivers/md/md-bitmap.h +++ b/drivers/md/md-bitmap.h @@ -94,6 +94,11 @@ struct bitmap_operations { unsigned long sectors); void (*endwrite)(struct mddev *mddev, sector_t offset, unsigned long sectors); + int (*start_discard)(struct mddev *mddev, sector_t offset, + unsigned long sectors); + void (*end_discard)(struct mddev *mddev, sector_t offset, + unsigned long sectors); + bool (*start_sync)(struct mddev *mddev, sector_t offset, sector_t *blocks, bool degraded); void (*end_sync)(struct mddev *mddev, sector_t offset, sector_t *blocks); --=20 2.39.2