From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 08DB7606A31A for ; Mon, 26 Oct 2026 13:30:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=KUQ4M94B; dkim=fail reason="signature verification failed" (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=FUl7sO6M DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Reply-To:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Date:References: In-Reply-To:Cc:To:Subject:From:Message-ID:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Unsubscribe-Post:List-Owner; bh=FGc1zRiNgHh8tVOrKm54Pa/7NMW+5w6pi1Tb965TyjE=; b=KUQ4M94BZmh4D2TgTqABBDegkS VsGfhKv12Kbxo8chf2qWKIH+bfKyr/kiXfgE5N5Hbd/g1dVfurWhn5iGY+UPJ8wyV+VQcgHjdE0X1 xXJ0cPyUdN164biS+Bl0nd7MFQpre6nB1KICfBC3YoZvWak0UDSVkIjeRF7cdRySwfSQb9FUBGY5Z IQuSz7dKk7vZKX4Y5AyX9e2D0QDzfytiP160s+r2ku3jfropRNW19r2uajZAE46c5CfsVR2rxRM6L TPj8B3tFAV+LEcLF4MtYLezJ9BhHAkrOcWGOsyQkaxlXeZ4nINVtS11c2xIhg4KIDojfM5e7NQDjU oNqNHA6A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xLKmX-00000002bZF-02bU; Mon, 26 Oct 2026 13:30:33 +0000 Received: from sea.source.kernel.org ([172.234.252.31]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xLKmV-00000002bY5-1cAY for linux-mtd@lists.infradead.org; Mon, 26 Oct 2026 13:30:31 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by sea.source.kernel.org (Postfix) with ESMTP id CAF2943D29; Mon, 26 Oct 2026 13:30:30 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5F23E1F031E4; Mon, 26 Oct 2026 13:30:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793021430; bh=xxFyXAK6h81SvCpLZVnWD2gPGovJspeHqZbLhgps2OA=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=FUl7sO6MvSTkNdwzFyvkM40yvalNg8LSNUq5P5au3WhZfqXLzvSKlWsDNWXmX4E31 PJBxGf53XT0BZUietyuwhIJXnoG1/lHNyZDcBn+gq+nD31sGN08VgefzEFTXTSRson QqvcnWvydyGsLfgmXiOETcjTkktw5Y/lzYbTF2+8A+6IDnWhUuMoMxHouJPpiOyoTG QeSDsstw0UlQ15RA3loLUldDdSY1SPiPeFAVDCxSQawlAEarHkrCFtyoC18sYlUq87 MTTZeq6+BG0dZcZSrSk8AmjZWHWzH8c4JrlDMm4BtCLD90Lj65MqcCkQVHxMh0bLly TMt0Btbbj1R+Q== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH v4] ubifs: zero stale data beyond EOF before file size grows To: "Nan Lin" , chengzhihao1@huawei.com Cc: linux-mtd@lists.infradead.org, richard@nod.at, wangxiaoqing@h3c.com, zhou.kete@h3c.com In-Reply-To: <20261026125001.2570619-1-lin.nan@h3c.com> References: <3535aeb8-2f61-fc3d-a5a7-96d069459690@huawei.com> <20261026125001.2570619-1-lin.nan@h3c.com> Date: Mon, 26 Oct 2026 13:30:29 +0000 X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: sashiko-reviews@lists.linux.dev X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-mtd" X-Spam-Status: No, score=-9.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 VGhhbmsgeW91IGZvciB5b3VyIGNvbnRyaWJ1dGlvbiEgU2FzaGlrbyBBSSByZXZpZXcgZm91bmQg MSBwb3RlbnRpYWwgaXNzdWUocykgdG8gY29uc2lkZXI6Ci0gW0hpZ2hdIHViaWZzOiBzdGFsZSBt bWFwIGRhdGEgZXhwb3NlZCBvbiBzaG9ydCBjb3B5IGluIHViaWZzX3dyaXRlX2l0ZXIoKQotLQoK Y29tbWl0IGFmZWQ0OTJiOWNhZWMwODk5NGEwYTk3YTQyN2FjMzllMjhkNzcxODAKQXV0aG9yOiBO YW4gTGluIDxsaW4ubmFuQGgzYy5jb20+Cgp1YmlmczogemVybyBzdGFsZSBkYXRhIGJleW9uZCBF T0YgYmVmb3JlIGZpbGUgc2l6ZSBncm93cwoKVGhpcyBjb21taXQgYWRkcyB1Ymlmc196ZXJvX2Vv Zl9ob2xlKCkgdG8gemVybyBzdGFsZSBtbWFwIGRhdGEgYmV5b25kIEVPRiBpbgp0aGUgb2xkLUVP RiBmb2xpbyBkdXJpbmcgZG9fc2V0YXR0cigpIGFuZCB1Ymlmc193cml0ZV9pdGVyKCksIGFuZCBy ZXN0cnVjdHVyZXMKdWJpZnNfd3JpdGVfaXRlcigpIHRvIHNlcmlhbGl6ZSB3cml0ZXMgdW5kZXIg aW5vZGVfbG9jaygpLgoKPiBkaWZmIC0tZ2l0IGEvZnMvdWJpZnMvZmlsZS5jIGIvZnMvdWJpZnMv ZmlsZS5jCj4gaW5kZXggZTczYzI4YjEyZjk3Zi4uNmYyYzgzYjZmNDMzMyAxMDA2NDQKPiAtLS0g YS9mcy91Ymlmcy9maWxlLmMKPiArKysgYi9mcy91Ymlmcy9maWxlLmMKPiBAQCAtMjAyLDYgKzIw Miw0NSBAQCBzdGF0aWMgdm9pZCByZWxlYXNlX2V4aXN0aW5nX3BhZ2VfYnVkZ2V0KHN0cnVjdCB1 Ymlmc19pbmZvICpjKQo+ICAJdWJpZnNfcmVsZWFzZV9idWRnZXQoYywgJnJlcSk7Cj4gIH0KPiAg Cj4gKy8qKgo+ICsgKiB1Ymlmc196ZXJvX2VvZl9ob2xlIC0gemVybyB0aGUgc3RhbGUgdGFpbCBv ZiB0aGUgb2xkLUVPRiBmb2xpby4KPiArICogQGlub2RlOiBpbm9kZSB3aG9zZSBzaXplIGlzIGFi b3V0IHRvIGdyb3cKPiArICogQG5ld19lbmQ6IG5ldyBlbmQgb2YgdGhlIGZpbGUsIG9ubHkgdXNl ZCB0byBib3VuZCB0aGUgdGFpbAo+ICsgKgo+ICsgKiBaZXJvIHRoZSBjYWNoZWQgZm9saW8gY29u dGFpbmluZyB0aGUgb2xkIEVPRiBmb3IgW29sZCBFT0YsCj4gKyAqIG1pbihmb2xpbyBlbmQsIEBu ZXdfZW5kKSkgc28gYSBzaXplIGV4dGVuc2lvbiBkb2VzIG5vdCBleHBvc2Ugc3RhbGUKPiArICog ZGF0YSBsZWZ0IGJleW9uZCBFT0YgYnkgbW1hcCB3cml0ZXMuCj4gKyAqCj4gKyAqIE11c3QgYmUg Y2FsbGVkIHdpdGggaW5vZGVfbG9jayhpbm9kZSkgaGVsZCBhbmQgd2l0aG91dCB1aS0+dWlfbXV0 ZXggaGVsZDoKPiArICogd2UgYmxvY2sgb24gdGhlIG9sZC1FT0YgZm9saW8gbG9jaywgYW5kIC0+ d3JpdGVwYWdlKCkgYW5kIC0+cGFnZV9ta3dyaXRlKCkKPiArICogaG9sZCB0aGF0IGZvbGlvIGxv Y2sgd2hpbGUgdGFraW5nIHVpX211dGV4OyB0aGUgcmV2ZXJzZSBvcmRlciBkZWFkbG9ja3MuCj4g KyAqLwo+ICtzdGF0aWMgdm9pZCB1Ymlmc196ZXJvX2VvZl9ob2xlKHN0cnVjdCBpbm9kZSAqaW5v ZGUsIGxvZmZfdCBuZXdfZW5kKQo+ICt7Cj4gKwlsb2ZmX3Qgb2xkX3NpemUgPSBpX3NpemVfcmVh ZChpbm9kZSk7Cj4gKwlzaXplX3QgZnJvbSwgdG87Cj4gKwlzdHJ1Y3QgZm9saW8gKmZvbGlvOwo+ ICsKPiArCWlmIChuZXdfZW5kIDw9IG9sZF9zaXplKQo+ICsJCXJldHVybjsKPiArCj4gKwlmb2xp byA9IGZpbGVtYXBfbG9ja19mb2xpbyhpbm9kZS0+aV9tYXBwaW5nLCBvbGRfc2l6ZSA+PiBQQUdF X1NISUZUKTsKPiArCWlmIChJU19FUlIoZm9saW8pKQo+ICsJCXJldHVybjsKPiArCj4gKwlmcm9t ID0gb2Zmc2V0X2luX2ZvbGlvKGZvbGlvLCBvbGRfc2l6ZSk7Cj4gKwlpZiAoIWZyb20pCj4gKwkJ Z290byBvdXQ7Cj4gKwl0byA9IGZvbGlvX2NvbnRhaW5zKGZvbGlvLCBuZXdfZW5kID4+IFBBR0Vf U0hJRlQpID8KPiArCSAgICAgb2Zmc2V0X2luX2ZvbGlvKGZvbGlvLCBuZXdfZW5kKSA6IGZvbGlv X3NpemUoZm9saW8pOwo+ICsJaWYgKHRvID4gZnJvbSkKPiArCQlmb2xpb196ZXJvX3JhbmdlKGZv bGlvLCBmcm9tLCB0byAtIGZyb20pOwo+ICsKPiArb3V0Ogo+ICsJZm9saW9fdW5sb2NrKGZvbGlv KTsKPiArCWZvbGlvX3B1dChmb2xpbyk7Cj4gK30KClsgLi4uIF0KCj4gQEAgLTE0MzMsMTEgKzE0 NzYsNDYgQEAgc3RhdGljIGludCB1cGRhdGVfbWN0aW1lKHN0cnVjdCBpbm9kZSAqaW5vZGUpCj4g IAo+ICBzdGF0aWMgc3NpemVfdCB1Ymlmc193cml0ZV9pdGVyKHN0cnVjdCBraW9jYiAqaW9jYiwg c3RydWN0IGlvdl9pdGVyICpmcm9tKQo+ICB7Cj4gLQlpbnQgZXJyID0gdXBkYXRlX21jdGltZShm aWxlX2lub2RlKGlvY2ItPmtpX2ZpbHApKTsKPiAtCWlmIChlcnIpCj4gLQkJcmV0dXJuIGVycjsK PiArCXN0cnVjdCBpbm9kZSAqaW5vZGUgPSBmaWxlX2lub2RlKGlvY2ItPmtpX2ZpbHApOwo+ICsJ c3NpemVfdCByZXQ7Cj4gKwo+ICsJaWYgKGlvY2ItPmtpX2ZsYWdzICYgSU9DQl9OT1dBSVQpCj4g KwkJcmV0dXJuIC1FT1BOT1RTVVBQOwo+ICsKPiArCWlub2RlX2xvY2soaW5vZGUpOwo+ICsKPiAr CXJldCA9IGdlbmVyaWNfd3JpdGVfY2hlY2tzKGlvY2IsIGZyb20pOwo+ICsJaWYgKHJldCA8PSAw KQo+ICsJCWdvdG8gb3V0Owo+ICsKPiArCXJldCA9IGtpb2NiX21vZGlmaWVkKGlvY2IpOwo+ICsJ aWYgKHJldCkKPiArCQlnb3RvIG91dDsKPiAgCj4gLQlyZXR1cm4gZ2VuZXJpY19maWxlX3dyaXRl X2l0ZXIoaW9jYiwgZnJvbSk7Cj4gKwkvKgo+ICsJICogVUJJRlMgc2V0cyBTX05PQ01USU1FIG9u IGFsbCBpbm9kZXMsIHNvIFZGUydzIGZpbGVfdXBkYXRlX3RpbWVfZmxhZ3MoKQo+ICsJICogc2hv cnQtY2lyY3VpdHMgYW5kIG5ldmVyIGNhbGxzIHViaWZzX3VwZGF0ZV90aW1lKCkgZm9yIG10aW1l L2N0aW1lLgo+ICsJICogV2UgbXVzdCBjYWxsIHVwZGF0ZV9tY3RpbWUoKSBleHBsaWNpdGx5IGhl cmUuCj4gKwkgKi8KPiArCXJldCA9IHVwZGF0ZV9tY3RpbWUoaW5vZGUpOwo+ICsJaWYgKHJldCkK PiArCQlnb3RvIG91dDsKPiArCj4gKwkvKgo+ICsJICogSWYgdGhlIHdyaXRlIHBvc2l0aW9uIGlz IGJleW9uZCBFT0YsIHplcm8gdGhlIHN0YWxlIHRhaWwgb2YgdGhlCj4gKwkgKiBvbGQtRU9GIGZv bGlvIGZpcnN0LiAgZ2VuZXJpY193cml0ZV9jaGVja3MoKSBoYXMgYWxyZWFkeSByZXNvbHZlZAo+ ICsJICogT19BUFBFTkQvUldGX0FQUEVORCBhbmQgcmVqZWN0ZWQgaW52YWxpZCB3cml0ZXMsIHNv IGlvY2ItPmtpX3Bvcwo+ICsJICogaXMgdGhlIGZpbmFsIHdyaXRlIHBvc2l0aW9uLgo+ICsJICov Cj4gKwlpZiAoaW9jYi0+a2lfcG9zID4gaV9zaXplX3JlYWQoaW5vZGUpKQo+ICsJCXViaWZzX3pl cm9fZW9mX2hvbGUoaW5vZGUsIGlvY2ItPmtpX3Bvcyk7Cj4gKwo+ICsJcmV0ID0gZ2VuZXJpY19w ZXJmb3JtX3dyaXRlKGlvY2IsIGZyb20pOwoKW1NldmVyaXR5OiBIaWdoXQpDYW4gc3RhbGUgbW1h cCBkYXRhIHN0aWxsIGJlIGV4cG9zZWQgd2hlbiBnZW5lcmljX3BlcmZvcm1fd3JpdGUoKSBlbmNv dW50ZXJzIGEKc2hvcnQgb3IgemVyby1ieXRlIGNvcHkgaW4gY29weV9mb2xpb19mcm9tX2l0ZXJf YXRvbWljKCk/CgpTdXBwb3NlIGEgZmlsZSBoYXMgYSBub24tcGFnZS1hbGlnbmVkIHNpemUgb2xk X3NpemUgYW5kIGEgc2hhcmVkIG1tYXAgd3JpdGVzCmJleW9uZCBFT0YsIGxlYXZpbmcgdGhlIG9s ZC1FT0YgZm9saW8gdXB0b2RhdGUgd2l0aCBzdGFsZSBkYXRhIGluCltvbGRfc2l6ZSwgZm9saW9f c2l6ZShmb2xpbykpLgoKV2hlbiBhIHN1YnNlcXVlbnQgd3JpdGUoKSBvciBwd3JpdGUoKSBzdGFy dHMgYXQgcG9zID49IG9sZF9zaXplIHdpdGhpbiB0aGF0CnNhbWUgZm9saW8sIHViaWZzX3dyaXRl X2l0ZXIoKSBza2lwcyB1Ymlmc196ZXJvX2VvZl9ob2xlKCkgaWYgcG9zID09IG9sZF9zaXplLApv ciBvbmx5IHplcm9lcyBbb2xkX3NpemUsIHBvcykgaWYgcG9zID4gb2xkX3NpemUsIGxlYXZpbmcg W3BvcywgZm9saW9fc2l6ZShmb2xpbykpCmNvbnRhaW5pbmcgdGhlIHN0YWxlIG1tYXAgZGF0YSB1 bmRlciB0aGUgYXNzdW1wdGlvbiB0aGF0IHRoZSB3cml0ZSB3aWxsCm92ZXJ3cml0ZSBbcG9zLCBw b3MgKyBsZW4pLgoKSG93ZXZlciwgaWYgY29weV9mb2xpb19mcm9tX2l0ZXJfYXRvbWljKCkgY29w aWVzIGZld2VyIHRoYW4gbGVuIGJ5dGVzIChmb3IKZXhhbXBsZSwgY29waWVkID09IDAgZHVlIHRv IGFuIHVubWFwcGVkIHVzZXIgYnVmZmVyIHJldHVybmluZyAtRUZBVUxULCBvciBhbgp1bmZhdWx0 ZWQgdXNlciBwYWdlIHdoZW4gYSBzaWduYWwgaXMgcGVuZGluZyksIHViaWZzX3dyaXRlX2VuZCgp IG9ubHkgdGFrZXMKdGhlIHNob3J0LWNvcHkgYmFpbG91dCB3aGVuICFmb2xpb190ZXN0X3VwdG9k YXRlKGZvbGlvKSwgYW5kIG90aGVyd2lzZSBleHRlbmRzCmlfc2l6ZSB0byBlbmRfcG9zID0gcG9z ICsgbGVuIHJhdGhlciB0aGFuIHBvcyArIGNvcGllZDoKCmZzL3ViaWZzL2ZpbGUuYzp1Ymlmc193 cml0ZV9lbmQoKSB7Cglsb2ZmX3QgZW5kX3BvcyA9IHBvcyArIGxlbjsKCWludCBhcHBlbmRpbmcg PSAhIShlbmRfcG9zID4gaW5vZGUtPmlfc2l6ZSk7CgkuLi4KCWlmICh1bmxpa2VseShjb3BpZWQg PCBsZW4gJiYgIWZvbGlvX3Rlc3RfdXB0b2RhdGUoZm9saW8pKSkgewoJCS4uLgoJCWdvdG8gb3V0 OwoJfQoJLi4uCglpZiAoYXBwZW5kaW5nKSB7CgkJaV9zaXplX3dyaXRlKGlub2RlLCBlbmRfcG9z KTsKCQl1aS0+dWlfc2l6ZSA9IGVuZF9wb3M7CgkJLi4uCgl9Cn0KCkJlY2F1c2UgdGhlIG9sZC1F T0YgZm9saW8gaXMgYWxyZWFkeSB1cHRvZGF0ZSwgd291bGRuJ3QgdWJpZnNfd3JpdGVfZW5kKCkK YWR2YW5jZSBpbm9kZS0+aV9zaXplIGFuZCB1aS0+dWlfc2l6ZSB0byBwb3MgKyBsZW4gZXZlbiB3 aGVuIGNvcGllZCA8IGxlbiwKZXhwb3NpbmcgdGhlIHVuemVyb2VkIHN0YWxlIG1tYXAgZGF0YSBp biBbcG9zICsgY29waWVkLCBwb3MgKyBsZW4pPwoKQnkgY29tcGFyaXNvbiwgZXh0NF9ibG9ja196 ZXJvX2VvZigpIHplcm9lcyB0aGUgZW50aXJlIHRhaWwgb2YgdGhlIG9sZC1FT0YKZm9saW8gZnJv bSBvbGRfc2l6ZSB0byBmb2xpb19zaXplKGZvbGlvKSwgYW5kIGV4dDRfd3JpdGVfZW5kKCkgb25s eSBhZHZhbmNlcwppX3NpemUgdG8gcG9zICsgY29waWVkLiBTaG91bGQgdWJpZnNfemVyb19lb2Zf aG9sZSgpIGFsc28gemVybyB0byB0aGUgZW5kIG9mCnRoZSBmb2xpbyAob3IgYmUgY2FsbGVkIHdo ZW5ldmVyIHRoZSB3cml0ZSBleHRlbmRzIHBhc3QgaV9zaXplKSwgb3Igc2hvdWxkCnViaWZzX3dy aXRlX2VuZCgpIGF2b2lkIGV4dGVuZGluZyBpX3NpemUgcGFzdCBwb3MgKyBjb3BpZWQ/CgotLSAK U2FzaGlrbyBBSSByZXZpZXcgwrcgaHR0cHM6Ly9zYXNoaWtvLmRldi8jL3BhdGNoc2V0LzIwMjYx MDI2MTI1MDAxLjI1NzA2MTktMS1saW4ubmFuQGgzYy5jb20/cGFydD0xCgpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KTGludXggTVREIGRpc2N1 c3Npb24gbWFpbGluZyBsaXN0Cmh0dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlz dGluZm8vbGludXgtbXRkLwo=