From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ua1-f52.google.com (mail-ua1-f52.google.com [209.85.222.52]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 32A373EFD15 for ; Mon, 10 Aug 2026 23:06:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.222.52 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786403189; cv=none; b=IwbpYxCHUff1x0bM64sPT0UTUuvjoeQZQrqHJJquglIk2lYdGzfgXX/vohqkgY00juxOq/tIlwN0bIJEM4JxyuLkOJ7hxvXi9DvEGAOjm/9lorYWhheOCT0eCk26sNpZA8UiJU80B7S3l4U0RNQg1b8NOGGK+cg30p8ZPa/xibs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786403189; c=relaxed/simple; bh=IzuppipK1dEFr99+pMsDknXhyhKbvUSEG1CYeDnWIwY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Q80V/TNtsm841X/Te36+QaoyiXz7yVG6oWvMIuzkbfJaHtJ7lgzYY/hDi98OLdvE/2bvcC6kico19Fysa5G0nft9jqTIpmczPFwwuWVZRQ1eAx1sBFswXekp2+gekkDdEcratV3lf390v6gXq34kJxtmAHEDq77FWXYI4dmmodY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=peridio.com; spf=pass smtp.mailfrom=peridio.com; dkim=pass (2048-bit key) header.d=peridio.com header.i=@peridio.com header.b=vP5BD8uS; arc=none smtp.client-ip=209.85.222.52 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=peridio.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=peridio.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=peridio.com header.i=@peridio.com header.b="vP5BD8uS" Received: by mail-ua1-f52.google.com with SMTP id a1e0cc1a2514c-977b2fcfdedso62044241.1 for ; Mon, 10 Aug 2026 16:06:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=peridio.com; s=google; t=1786403186; x=1787007986; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:sender:from:to:cc:subject:date :message-id:reply-to:content-type; bh=uSGSDxy2zUMBEFhOX3vJ37AYVV3JHVveLhDFnDI+8Zg=; b=vP5BD8uS6qVjAvKCrioVvJjghzs6fYvP57ZscTusOP/oT3fFxhhXmKQ+Zuy/jYIdxg ytosKp5VLWuMCZe6p9Xh/ZVE9MIZmuoCZceJXwVPLl3ixy+VkwJVZd7y3Bs/oMiGjA4T IUGHhCQYrtri+5yiyzwgXvGY+HIvAX0nS1WVMiKrEwu556jtkLUwuv66GJDH0E8POwb1 YE4q2uX8PJF61smdTiLOmuiYf8pIz3pYhY4jsgyEJGLZgLHmuv8jlnEFAosyUcdsTFEU FexCBporiqGTga5/5n6skp5k14P8k3CO8+u0VwL13WtSYVLcFnR5eiLFcw5Qss2qHPeF uFdA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1786403186; x=1787007986; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:sender:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=uSGSDxy2zUMBEFhOX3vJ37AYVV3JHVveLhDFnDI+8Zg=; b=B3wYM2X5yene3Qm1ayyF72TGLFNQ8GTzOTnnAcRtCQY06Pxs/vDoq73gdO+p6/c0Vb SSKqPw6Q6kK6ueiSdWBlZ8nsAfSYKNxf3Giu0G4qHYKqLCcMdjtWHxkUzxSx+x3aGLDI dxArEjBBgh+3xifUjyNcfPeT5nPZrVfKP1XeT4oLWTtUkypavx6YwyV8x6YbCFtVTHTq FWsPalgA0P0fgYUW/bLj+85rDbrOHZcAUIizswUbfsmIrzrPeIxlzpkub4S4KurKXncX UIDP/iziMp/rLYvtBhXge5WhLLwKpHSazPCSQarXsWulUHzfNm7C7wyaGj4qdcx6MLss JbOQ== X-Forwarded-Encrypted: i=1; AHgh+Rp18xigaJ7Gj9jYvLuXfZVaQz+OSpzAAsUGX5Ualou9Xc5t3cASJIQ9e543O4/3cyZuWtLfCI91T6M=@vger.kernel.org X-Gm-Message-State: AOJu0YxwbMojfWzoNOE/4lQAi4+VyGUDw+tSWTsSWWnPse1+61NlYNMI XRJvV+Jkuy7BJwI3GDH+5yIMCjhgDL0CbMQLe9d4ki8CBli8skMwz2bby74ebOThsozeFoSBd/O IlvX1fIg= X-Gm-Gg: AR+sD10kikoVBSZbnZjdOqRK2xwS9R9xopaFf6Of5c7Nz/ttRIyzdpvM8CBtSWluDPs OLK6nQi89MtqnR63ezxAarQypU4/FGUBr6xoScHCSOejr/NPuD20XpJGsyaB+5tPo5M2iATtuic iO735UKuIULNSySDaVFDAHyFbvPt1kOuGCuv1GV5ypg2JmFl4AP94qcTu7/cgwenKb/aJmxMnNZ uG1i78S2dp4wjncf5SxxWfWRz5Ugc8ZXJWusd7tvQZa9mR23VUh4khZGCajqMnWPcc+oB1rbkfG iDalM5a5WAYOqpOy6/jrucxgL7uXwR1xpdNyEofUtRV0McBX6HYba0WfAx00LUtfJ5vM7zDRdXw gv/Kuy6+3jyRcpPuJb6d71Q2tTb1Cl/E23JaEYQ5w0WxhhXwDvY2xHD+kO0prU2iV2HVvp1navK UCgJOSrcbpihSRP9i57YwghPRyYYeQbYFV5weCpQnJ6FyQUZeFMKFpc8Q= X-Received: by 2002:a05:6102:3e84:b0:74c:551:54d2 with SMTP id ada2fe7eead31-760eb45605dmr6973438137.4.1786403185824; Mon, 10 Aug 2026 16:06:25 -0700 (PDT) Received: from localhost ([190.113.101.40]) by smtp.gmail.com with ESMTPSA id ada2fe7eead31-76400dfe036sm5284342137.8.2026.08.10.16.06.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 10 Aug 2026 16:06:25 -0700 (PDT) Sender: Javier Tia From: Javier Tia X-Google-Original-From: Javier Tia To: Carlos Maiolino Cc: "Darrick J . Wong" , Dave Chinner , Allison Henderson , Andrey Albershteyn , linux-xfs@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH v3 5/6] xfs: initialise args->total for parent pointer updates Date: Mon, 10 Aug 2026 17:06:17 -0600 Message-ID: <20260810230611.2859909-13-floss@jetm.me> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260810230611.2859909-8-floss@jetm.me> References: <20260810230611.2859909-8-floss@jetm.me> Precedence: bulk X-Mailing-List: linux-xfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2528; i=floss@jetm.me; h=from:subject; bh=IzuppipK1dEFr99+pMsDknXhyhKbvUSEG1CYeDnWIwY=; b=kA0DAAoBte7DC6hndx8ByyZiAGp6WWOjlAjLdfWNwJr5dSRkdWEVI7PiFkDsDAdhGLXRGXpTc IkBswQAAQoAHRYhBJsTsgvPDt4jRUqTybXuwwuoZ3cfBQJqelljAAoJELXuwwuoZ3cfko8L/R3Z o++3z2kqlMstgJp+Ec++0Y7iqhb1w2c9ZmdbKVWnZ9D9kWzHFj2m2F8hEbKPq8eT5NfqHC5NYhf EFA4aTZKN+Tq6I/yr9cba3d6AMxCAIv8fVUuPsRxYBx4AIN2hPOccIX02rGCkGHz/GrdZ3RVJkD D7FGjoGSNqiPApdMJ7wXoaZAS4fFi97zLcECIPIklvwzODqEN9fSlz7j7FvjH7eeYkxw0hw47FI sjX86gS7nAeC0Y7MyGgU6CRu9g3E3a90TMq2sdO4r7nzKdVlAxE4rTW9RJUz7D8x2XFo2WmuCB3 qli9e0sGKDkCnCzRHaS9Q7OoQLdSFbOLSdGMUw2zsOlfXyoPYZbRvFU2vLdFbJO17+p9T2yCIa3 gq3Ufr67312unu33K+qau5EvClnyxTGgNtmLUoJKzqf30b4bbZJpAla/OBVhxm4XrsYPLO0dPUk eOjqgLMXbkI1SCadeEbL22MtYRJ2bbN96iesG8iOvgRwBuBM0YbJ4yYY91iw== X-Developer-Key: i=floss@jetm.me; a=openpgp; fpr=9B13B20BCF0EDE23454A93C9B5EEC30BA867771F Content-Transfer-Encoding: 8bit xfs_parent_da_args_init() builds an xfs_da_args from a zeroed xfs_parent_args (kmem_cache_zalloc), leaving args->total == 0. xfs_da_grow_inode_int() treats that field as a running block reservation and subtracts from it; because it is an xfs_extlen_t (uint32_t), the first attr-fork growth wraps it to ~0U. That defeats the free-space check in xfs_alloc_space_available(), and when it coincides with an AG that has exactly zero available blocks the allocation is clamped to maxlen 0 and returns -ENOSPC, which xfs_defer_finish_noroll() escalates to a filesystem shutdown. Set args->total the way the log recovery path does (xfs_attri_recover_work(), xfs_attr_item.c:706), in the add and replace paths that can grow the fork. Removals and lookups never grow it, so they leave the field alone, matching that switch. Fixes: b7c62d90c12c ("xfs: parent pointer attribute creation") Cc: # v6.10 Signed-off-by: Javier Tia Reviewed-by: "Darrick J. Wong" --- fs/xfs/libxfs/xfs_parent.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/fs/xfs/libxfs/xfs_parent.c b/fs/xfs/libxfs/xfs_parent.c index 3509cc4b2175..312f33086d53 100644 --- a/fs/xfs/libxfs/xfs_parent.c +++ b/fs/xfs/libxfs/xfs_parent.c @@ -194,7 +194,7 @@ xfs_parent_addname( const struct xfs_name *parent_name, struct xfs_inode *child) { - int error; + int error, local; error = xfs_parent_iread_extents(tp, child); if (error) @@ -204,6 +204,10 @@ xfs_parent_addname( xfs_parent_da_args_init(&ppargs->args, tp, &ppargs->rec, child, child->i_ino, parent_name); + /* Growing the attr fork needs a real reservation in args->total. */ + ppargs->args.total = xfs_attr_calc_size(&ppargs->args, &local); + ASSERT(local); + return xfs_attr_setname(&ppargs->args, 0); } @@ -240,7 +244,7 @@ xfs_parent_replacename( const struct xfs_name *new_name, struct xfs_inode *child) { - int error; + int error, local; error = xfs_parent_iread_extents(tp, child); if (error) @@ -250,6 +254,10 @@ xfs_parent_replacename( xfs_parent_da_args_init(&ppargs->args, tp, &ppargs->rec, child, child->i_ino, old_name); + /* Growing the attr fork needs a real reservation in args->total. */ + ppargs->args.total = xfs_attr_calc_size(&ppargs->args, &local); + ASSERT(local); + xfs_inode_to_parent_rec(&ppargs->new_rec, new_dp); ppargs->args.new_name = new_name->name; -- Javier Tia