From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=74.125.82.45 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793517374; b=YL3GPEdPBeajmUjM4btphvjBZQenxBMZlO/aPYpYZGsAo9CDwSkqCyFlirY6/W/QByMf FFzic/Uk/+ogJ/jY9JTT8tNPY2V3YfDXcq2t/JPZ1MLM49Y3Xt9TU8Fdj78L270kAQY9K iKLGABLALlGJ5xYmkJL5M4MZEuktCsPUiHsKd0YNFoxaUqVCUGIupwx97aGus6SV6YtTF Q7J3cd+3mEsu8wpYDFkyKe5zVivo2U1fC3MXiM/uv8y9yME3Y60F6XM9L06uVNhUBTr1I yXmt+TFNgeXUEBQYBiW14q+5tkASMrK2jFXSro1jC5tK6/Pgi3eSDorW/HuosH+5nag== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793517374; h=DMARC-Filter:Received:DKIM-Signature:X-Google-DKIM-Signature: X-Forwarded-Encrypted:X-Gm-Message-State:X-Gm-Gg:X-Received:Received: From:To:Cc:Subject:Date:Message-Id:X-Mailer:In-Reply-To:References: MIME-Version:Content-Type:Content-Transfer-Encoding; bh=xjWYg1n4YKzfxG8UfUkLCh9i6lhXerNEUBT8wvZMd9w=; b=Z/yTXmpNPoHLng8pnlVU17KWhmmOKFoTGeEWfUm+ZHQni8bUQrf44LQ2bVuJQqow9+iQ rwvGc9altMFpEuX1ehkoE5f5ypivGNCooaw7RoLXfYXmp45mdBtprUteLs4rQPg/dtSBo UXHQkLRKwHTpN4YxJij+2y6NfUnw3G5UceoN7WGy0k2CYHp5+jrZRwO8JhWSK1vTECbQp PVWCf8rboGX4qrchvFQYbGhoRtg24hzG8PNlU4nAYTeTrLRIDecumumOH9mZjaR0b9aDq EWbXO3l53ujkVP52hfjqJSOSMHfjl/uveyxbEumWbsB7+T7r0iy9SiHoiy3xypkX0+g== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20260707 header.b=ZOe5vS3I; arc=none smtp.remote-ip=74.125.82.45 Received: from mail-dl1-f45.google.com (mail-dl1-f45.google.com [74.125.82.45]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4CF16606A325 for ; Sun, 1 Nov 2026 07:16:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 4CF16606A325 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20260707 header.b=ZOe5vS3I Received: by mail-dl1-f45.google.com with SMTP id a92af1059eb24-15ea896ddc8so3503924c88.0 for ; Sun, 01 Nov 2026 00:16:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20260707; t=1793517373; x=1794122173; darn=vger.kernel.org; h=content-transfer-encoding:content-type:mime-version:references :in-reply-to:message-id:date:subject:cc:to:from:from:to:cc:subject :date:message-id:reply-to:content-type; bh=xjWYg1n4YKzfxG8UfUkLCh9i6lhXerNEUBT8wvZMd9w=; b=ZOe5vS3ISMdrhLgDpU/zp1i9KcXmr3D9SrI84jkP0vt/ytPubliSrLdOck/fcukufg 2PUJKPhFtuKEukhICewninU3btU+c4JZS3aS9KP+RLkqCKyKi82tLpwwJsx//oCDXvh0 ydib1+w9CvBDBpmHhsxjohRqCyZuJToLisyzIA8nlhTnccu8QvKSlSa9JuOx5s/HyLbT ycxtWq9WZXZJ8E62EQXgZqTnrbB1drTTqs8V3bdZIfHb0odBKFfqPCfKNtzgv/gQCYvE uGsHb/XGOswLssr1or5m4E/a/h9lDnDhg1Zv7X362kX1w2qcvXhOxskC1cFIGrXkZhQc F3CQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1793517373; x=1794122173; h=content-transfer-encoding:content-type:mime-version:references :in-reply-to:message-id:date:subject:cc:to:from:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=xjWYg1n4YKzfxG8UfUkLCh9i6lhXerNEUBT8wvZMd9w=; b=yTa+uslG6RGo5BUVoeIf58JpjbdD8p6SH87+5MQ0m/2DyF5sYLOeLJy5b+hC4sh1ZL zphZGIk87K+LGNcbru3zcRhj/UuO9m3ABqudA1wtfYXdItAiRyafJExY1kyXImGhGK/b 7nf/hmoQdennoHyAgURjN/OEC9dZ0jY7nFR36CZbBg7wp+ppR7eRvenb66jXsyRTlIK0 frOhp5ozLty+70bhCMQ8YyEMW26h3XaHtMaDDIMvGerovh/t/Zg1NZg22ocRFyNpopOT B7XEo+ObcunkS33i/yqmQwHb+lozOj0y/kOYQ4COv0pasUvCSghggD6mUZBg+iojbUHA boHg== X-Forwarded-Encrypted: i=1; AKwUvBySRzKr2P0iBVzOlZYP7GmCvHEHsA1K3TiHq8hs90Ybu2qTQtaVBlssDyb00F5WMz7Rs/DIzwbOCsIjD7g=@vger.kernel.org X-Gm-Message-State: AFq9FYJ1w8gp7HOMfwN0kayFdkG8hadvFbV1E8GDw0h5FY7hBh42zM7/ asb8aB6KF38LgIBfHDVsGJXbA2Qnjxb1TUWQunMz+1O7u3/EsrZ+FCNv X-Gm-Gg: AYBFou39DKARt3+hTzCgxgN80j5yHlyIHVd0QGV+GnK4yB/Gz2L4OSle3icQNvmxEsa NoIntbJ6Ajf7WPeNu/7TccBHYW46mwRfOfzOQBUfJHzmvGglwkm9qI1DrDb10iSgctyY/EqEkA1 f6WjZYzqY7Xl3EZROlaBSIODGk/pDk6NmNSc90sV/IJ2gcQsqNBAjZ4lwVfWPd0xRIqzqG3gpWH AlMgLUqno33/Yx88k32Jasadwr+Vhx7zEM96k8wlFhsrwJBGb/smeJg3qu+9hNkr1MttgDX7pGf VbFcAzsRLGDsPkvxJmBc/Ml/7C+hawwSWiFHTvQ4Hhw4nsrYrwZyPGpJ0rgh5obT2EIuUsPPDYx btjU51zW66leCay5Q19NgCkhL46M9KhZKdgwjra3pWTwtDS5cH4HTZLddU2yDue490IQDA/5Q7D I/W0q2fMIs1Hgu98YA7yyiV4+W2o1UJO5iLpb8DA8EWCUBzzCy6SE1vxLVOaj7W/+OrHvl7OZEi gMzmpYR4oRAShJ0uMBw/HwJGkprCJrN3l4dv0EwnGFrw/94Pn83bHwWTy+CgXg3ap2JUiPNV1Mp su/Y1ITs1jFhB2bS4jC1Zz+XZ4jK4ucaveajjpRQfo/tt6fDfFdfdQZwuStmsB+J3K22 X-Received: by 2002:a05:701b:2401:b0:167:4198:2cb3 with SMTP id a92af1059eb24-1ac5ae38bb7mr10000684c88.18.1793517373179; Sun, 01 Nov 2026 00:16:13 -0700 (PDT) Received: from youngkk-vm.localdomain (67.216.200.102.16clouds.com. [67.216.200.102]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-1ac1b0a628bsm23197930c88.22.2026.11.01.00.16.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 01 Nov 2026 00:16:12 -0700 (PDT) From: Cheng Yongkang To: Qu Wenruo Cc: Cheng Yongkang , David Sterba , Chris Mason , Filipe Manana , linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] btrfs: reject zero num_stripes in the system chunk array Date: Sun, 1 Nov 2026 00:16:06 -0700 Message-Id: <20261101071606.1854874-1-teel4res@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: <179328314071.648427.12527832319954042748@gmail.com> <6ad220fa-d6a0-4b4c-a313-a0cc052b8637@suse.com> <179334729054.2353588.12398743988940745859@gmail.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi Qu, Thanks, I've sent v2 with your change: https://lore.kernel.org/linux-btrfs/20261101071444.1853699-1-teel4res@gmail.com/ I also need to correct my earlier reply: with the assertion disabled, the old expression gives 48 bytes for zero stripes, not 16, and btrfs_check_chunk_valid() runs before the loop advances over the chunk. So removing the assertion is enough, as you said. Sorry for the confusion. Thanks, Cheng Yongkang