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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1773160014; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=a90dg7Kpj66lfcCXYa3gY/ZRYMIGRWa/2aZcC7ix4io=; b=IFZz+lpbi/awAqHEtsLKifwuHvKOmOZq7nch9Y/co6jou46MbRFl0em7Vxu7ndq/zhHKVd s6BGMxFmXUssGpGJwwZlXfGjlSWK3NwLRV0GiIyMMYh26kXk6m8jKw2URfv8GQQxpA8s1X hwOEjAJ/CRav9/x9Ih8hQe/20+OqVtM= X-MC-Unique: C9FmgeQHPm-YlMCdK9MRPw-1 X-Mimecast-MFC-AGG-ID: C9FmgeQHPm-YlMCdK9MRPw_1773160011 From: Kevin Wolf To: qemu-block@nongnu.org Cc: kwolf@redhat.com, qemu-devel@nongnu.org Subject: [PULL 13/28] iotests/308: Use conv=notrunc to test growability Date: Tue, 10 Mar 2026 17:26:07 +0100 Message-ID: <20260310162622.333137-14-kwolf@redhat.com> In-Reply-To: <20260310162622.333137-1-kwolf@redhat.com> References: <20260310162622.333137-1-kwolf@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" From: Hanna Czenczek Without conv=3Dnotrunc, dd will automatically truncate the output file to the @seek value at least. We want to test post-EOF I/O, not truncate, so pass conv=3Dnotrunc. (It does not make a difference in practice because we only seek to the EOF, so the truncate effectively does nothing, but this is still cleaner.) Signed-off-by: Hanna Czenczek Message-ID: <20260309150856.26800-14-hreitz@redhat.com> Reviewed-by: Kevin Wolf Signed-off-by: Kevin Wolf --- tests/qemu-iotests/308 | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/tests/qemu-iotests/308 b/tests/qemu-iotests/308 index 033d5cbe222..6ecb275555a 100755 --- a/tests/qemu-iotests/308 +++ b/tests/qemu-iotests/308 @@ -296,7 +296,8 @@ orig_disk_usage=3D$(disk_usage "$TEST_IMG") # Should fail (exports are non-growable by default) # (Note that qemu-io can never write beyond the EOF, so we have to use # dd here) -dd if=3D/dev/zero of=3D"$EXT_MP" bs=3D1 count=3D64k seek=3D$orig_len 2>&1 \ +dd if=3D/dev/zero of=3D"$EXT_MP" bs=3D1 count=3D64k seek=3D$orig_len \ + conv=3Dnotrunc 2>&1 \ | _filter_testdir | _filter_imgfmt =20 echo @@ -333,7 +334,7 @@ fuse_export_add \ 'node-protocol' =20 # Now we should be able to write beyond the EOF -dd if=3D/dev/zero of=3D"$EXT_MP" bs=3D1 count=3D64k seek=3D$new_len 2>&1 \ +dd if=3D/dev/zero of=3D"$EXT_MP" bs=3D1 count=3D64k seek=3D$new_len conv= =3Dnotrunc 2>&1 \ | _filter_testdir | _filter_imgfmt =20 new_len=3D$(get_proto_len "$EXT_MP" "$TEST_IMG") --=20 2.53.0