From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 844EF39185C; Wed, 24 Jun 2026 06:43:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782283385; cv=none; b=lZLJekO8X2qqdNVyGDKTgRQPPvCDgvnU2KVn3JOFLlBEmVrEg+BMBssSsPz4jDRNiW1asPr6wVi6dVVoylFEk412JYlEvXX9dE2Ubi21NA1onG9kUEDnJPVFFeoqPAlzFUiv2WYWbDvGz+N1YkZQZW4P0YnjPlxZZXtjFUBqqmg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782283385; c=relaxed/simple; bh=Aw1gNRevTwqD+2er8RV/YU/327IH64O8LBFutTh4Ocs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gp9wPq2sgQubvZYchqdSwzbFbnlbomxtYs91jC3fiOwHHPV7yaoBNI8jojtokYKhx43JtziZy5qlnIfIH8g/akJGY88AyMxRgp3F1xKkcm6yt6420vKDWYO8SaOaj+lT4MJF1N8yaSQkYXktEx1p7dVNMrYVSutWOxS87aGJ9ls= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=LX6vW+EZ; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="LX6vW+EZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4E9A01F000E9; Wed, 24 Jun 2026 06:43:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782283384; bh=FyXqR6M7679RX5rJ83DKHfiPQpxbwKXhyLNfX3Pe9Fc=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=LX6vW+EZRUb8AEXu1v6wTd7BFwvpaw3QLGhWVMHfZsgx/lIwwPvPPmlPACn6FILLY jHP64U+Xua28hJxs13b3xjKwsnGBSvsbMlBxHlGKHBM2HI07doRD8DJfeiXi6epUL/ 1gpKPABLgphK72b0aZOaFBB9ld/NR4HhnbVj8/R/jhENS+/UElyWsHyihRndHiflwm KeNxm1JFjPBecZjDTbh6r8RuiokgUNXQOUm1su+gppMrpYitkDWotofHYnzawo0/vD 2oWrmXKtxVB9oml2nuTz20TxxsHPaFc0IqiV095tPI8WWELXp5fNbaNngKV5YYD/HZ JfMPNnvpI+SgA== From: Yu Kuai To: Song Liu , Yu Kuai Cc: Li Nan , Xiao Ni , Su Yue , linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 16/20] md/raid10: split reshape bios before bitmap accounting Date: Wed, 24 Jun 2026 14:42:13 +0800 Message-ID: X-Mailer: git-send-email 2.51.0 In-Reply-To: References: <20260605091527.2463539-1-yukuai@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Yu Kuai Use the shared mddev_bio_split_at_reshape_offset() helper so RAID10 submits only one-side bios to llbitmap during reshape. Signed-off-by: Yu Kuai --- drivers/md/raid10.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index e50e4adee389..fd364a2e2fd9 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1911,6 +1911,12 @@ static bool raid10_make_request(struct mddev *mddev, struct bio *bio) sectors = chunk_sects - (bio->bi_iter.bi_sector & (chunk_sects - 1)); + + bio = mddev_bio_split_at_reshape_offset(mddev, bio, §ors, + &conf->bio_split); + if (!bio) + return true; + if (!__make_request(mddev, bio, sectors)) md_write_end(mddev); -- 2.51.0