From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 70991A59; Wed, 21 May 2025 04:15:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747800945; cv=none; b=SdMNR9g+Xt1isUvocvWYtIP9micPYHSinAzzGB3j2icyPbk/D4fDy+3v3/ydd74vXK7SFMDaCeML2H+GdrNBTDdFszjpErILP696BzADD9/GRb2YkUIIO2J3y2bztndTqUO2aj09coL+97bipDg9+KYFu10C29vDD7+iYDrGHII= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747800945; c=relaxed/simple; bh=Ee3NArvNyD2JEb+TlWvCfXTvmmbT04YOAorQVbHYqV4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=iAN30pFQLCyCusRG77gReXxcl39bU0O67b5SaP95r2SMwUqfVe1SVh7xNE+E4gWTklNAEgMFx5xO+i601tS6HMvKjwZpBUp+8DRT3E0sM7UJUccnPlfVT8oQ0GdV5F8OXULsUGFz2dzWg+ZgPN+w7aEATOPxPm1qCxAY8tHBx4M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ry7e6ucI; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ry7e6ucI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 49618C4CEE4; Wed, 21 May 2025 04:15:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1747800944; bh=Ee3NArvNyD2JEb+TlWvCfXTvmmbT04YOAorQVbHYqV4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ry7e6ucIx1D0f+cf+nWcpVVCGffHGml203u03aQ8QF6KCqrhz0Uxri6+ZKcw0qpN6 3SM4OFafoTrrnVlvRbcZJ+kLmgNW6FQCKfFhDUQE8+FfNDkRs1rO0Qf59J3CihlBmu eIp+Nu81o9sD8A4zxDwfKw7ZMsb9hoG0TY7MIVUQ= Date: Wed, 21 May 2025 06:15:41 +0200 From: Greg Kroah-Hartman To: Qingfang Deng Cc: stable@vger.kernel.org, Tejun Heo , linux-kernel@vger.kernel.org, Ian Kent Subject: Re: [PATCH 5.10 0/5] kernfs: backport locking and concurrency improvement Message-ID: <2025052103-headband-friend-90f6@gregkh> References: <20250521015336.3450911-1-dqfext@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250521015336.3450911-1-dqfext@gmail.com> On Wed, May 21, 2025 at 09:53:30AM +0800, Qingfang Deng wrote: > KCSAN reports concurrent accesses to inode->i_mode: Yes, but can you actually trigger this issue with a real workload? How were these tested in the 5.10 tree, and if this is a problem, can you just move to a newer release instead? thanks, greg k-h