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([2a01:e11:3:1ff0:fc63:7c50:c123:ffef]) by smtp.gmail.com with ESMTPSA id af79cd13be357-8c713580985sm1258562285a.8.2026.02.02.10.54.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Feb 2026 10:54:38 -0800 (PST) Message-ID: <35351364d83b76158db8d77f0ab2a1a7db27e335.camel@gmail.com> Subject: Re: [PATCH] xfs/841: create a block device that must exist From: Luca Di Maio To: Christoph Hellwig , zlang@kernel.org Cc: djwong@kernel.org, linux-xfs@vger.kernel.org, fstests@vger.kernel.org Date: Mon, 02 Feb 2026 19:54:35 +0100 In-Reply-To: <20260202085701.343099-1-hch@lst.de> References: <20260202085701.343099-1-hch@lst.de> Autocrypt: addr=luca.dimaio1@gmail.com; prefer-encrypt=mutual; keydata=mQINBGGqRu4BEACybdvi9+LqKuWA/P9HW7+wzGtIbFL2PR/vgJZqLzAscGrJB3ZvpdT2h daDdjRX7Maod9EAZceZYl2YVLZ6Q54qhm1hlEp4Iw6/adryfzulrJPX39mvqpJNE6gSkatwUDekhC AJpBbpq2aB79wOF08++KofqNW1r0xMIQ/KVoPryE4jNL2y99bEvUpe4S9TEyWTwsv/I0nEIX4SMgf VmW9XY842p9Bj6lws5U2dENIU8OD3cgK4uhfueb/ggkYg/5ZcblIBdVY0xDiFCqyTDr8+TVK2Algr M+r5MDPUKQXpIxh+gD84PcX8VXDHsmZaWsZmdkryiZ5RFammebqoIdxLF0oqwgUpaA8Ed4hlPAzmd TdVjMwFo01IHzFkZvS0g90qVXTf1fTSVG4JZU2gAasKVl0VDh4yJlzK3c1rWueqISv6AiD+BA6sPu 4zscdBckK6diftYINuGV6Bfw+v+2AFvjCq8isfCQPXY8XHTg+5lktGN6+45SUEghDpeacSM+G/q25 qCLKbi6dzAtjCDeR8b6o0lRQ645/5fMU4CSyanfsf7YRkw2RqA6pRM3q/i4nlvznMLxR42iNc1BMY A3t1jv6RIEE36eke9Ube0p0TsEisGGYo4NTVO4RUeMeSG3waYfLB0eXHe9Ph/K0FrTBq6XE65KwRO Bwk0tB6lU0+jwARAQABtCVMdWNhIERpIE1haW8gPGx1Y2EuZGltYWlvMUBnbWFpbC5jb20+iQJOBB MBCgA4FiEECdpUF1+FXVXQxDERHMOHTl7ICj4FAmGqRu4CGwMFCwkIBwIGFQoJCAsCBBYCAwECHgE CF4AACgkQHMOHTl7ICj5gag/+JtIKsPwWRJWnnexbGS/gGaZ81GtZ4skW/UHhQqfc44//ntToy3uw 2PFaPB+5WLlA/XAzpLBFjLD5ZscFtHW7/ICGxrBqB/Q6AULoz0zsDhJ8YmO68A5YYNkGCLbWzando vrY/GykUEMT1EsReaIHhLpL/+3jsXGyIsztFi6qkjfDsFT+306+llIhIxgY+ZI/B/wlI41BKmSae+ 5WOR4oZb080Famy/5hjx/Mi0AYu2A6cRpw2k+l2/u+aEvunmkgkgB186tA/JhoOPYQvT5xVQ5GYRu vcX1kHscYD+Tgx3DhkMS1XqZihH4UE9Ec6QeOJTWrK1czRFTJpTOgPAMmksMdgU8YKKHj0dafCNl3 /2gld0Q2s5/tAGPpPuOPJf5GUtcOn1Qxr7Re2pyrQdcdr/jUdy1GVHAldzOZlBID3u0dTUGWLsPDA dvwGyiwdZiNgnHxTEWchpFo0mwi5S/3+sWcPWAJO2zEVfkqyNhmHSW5EBrwe9nhCT5uqF8dEKb4tf FxAAgPAiFfnLhweVxkPIvPK6/rIZo8F6t6qSXibbTIjdi9pLSDMY0m8u/fRZ06DsciFIfrWG1LXlu 14mDpr4zQSUELe1RRU1NEfD87TyYehjPvEewM6bZlRJ4SLaWQFoRW3OKH7IN1ODUn7T9TIx1uuzs4 4ViZ2BeR0ow9RQc= Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.58.2 (by Flathub.org) Precedence: bulk X-Mailing-List: linux-xfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Thanks Christoph Reviewed-by: Luca Di Maio On Mon, 2026-02-02 at 09:57 +0100, Christoph Hellwig wrote: > This test currently creates a block device node for /dev/ram0, > which isn't guaranteed to exist, and can thus cause the test to > fail with: >=20 > mkfs.xfs: cannot open $TEST_DIR/proto/blockdev: No such device or > address >=20 > Instead, create a node for the backing device for $TEST_DIR, which > must > exist. >=20 > Signed-off-by: Christoph Hellwig > --- > =C2=A0tests/xfs/841 | 5 ++++- > =C2=A01 file changed, 4 insertions(+), 1 deletion(-) >=20 > diff --git a/tests/xfs/841 b/tests/xfs/841 > index ee2368d4a746..ddb1b3bea104 100755 > --- a/tests/xfs/841 > +++ b/tests/xfs/841 > @@ -85,9 +85,12 @@ _create_proto_dir() > =C2=A0 $here/src/af_unix "$PROTO_DIR/socket" 2> /dev/null || true > =C2=A0 > =C2=A0 # Block device (requires root) > - mknod "$PROTO_DIR/blockdev" b 1 0 2> /dev/null || true > + # Uses the device for $TEST_DIR to ensure it always exists. > + mknod "$PROTO_DIR/blockdev" b $(stat -c '%Hd %Ld' $TEST_DIR) > \ > + 2> /dev/null || true > =C2=A0 > =C2=A0 # Character device (requires root) > + # Uses /dev/null, which should always exist > =C2=A0 mknod "$PROTO_DIR/chardev" c 1 3 2> /dev/null || true > =C2=A0} > =C2=A0