From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH] cgroup: limit max copied char length for cgroup file name Date: Mon, 11 Dec 2017 07:05:51 -0800 Message-ID: <20171211150551.GC2421075@devbig577.frc2.facebook.com> References: <20171209054758.13870-1-mashimiao.fnst@cn.fujitsu.com> Mime-Version: 1.0 Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=K27FuU82Bmj9Kg4jFeJP7LkNNu0PF7hJIHYycfHmKp8=; b=dt8eek6avsVr77PBC7XbrWBqE2zXJNr5t2FTx7D2iAzenK1Uw7T4aecw1PdbhrzYSC LIaUjg62nmeDDi6vSmza7c2S3DAsNPEnbkWdwZzXZNHxGMUCcIdLNv7RJXYElyjvsSIJ ccZZT/xuTo9pz9v7FOKl08yXNojDRlsGe/2gCLZ2cnHHmkvRrGAvM+eT8C3Y7kYazZmR h12M3sSwWOqvrtoH2wSnDtaeBPTgFvwJAWOkI6R2atQb7FEWcoVp5liHU2mQbElE2Meq oZWO0MS1bzV4gdCRTd+JkLwlRPgyP+WIItDTjzL5qzcobOFnA4f39S02QLWM3ZsNI4/a iPcQ== Content-Disposition: inline In-Reply-To: <20171209054758.13870-1-mashimiao.fnst-BthXqXjhjHXQFUHtdCDX3A@public.gmane.org> Sender: cgroups-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Ma Shimiao Cc: lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org On Sat, Dec 09, 2017 at 01:47:58PM +0800, Ma Shimiao wrote: > the result of cgroup_file_name will be used by kernfs_remove_name, > and then by kernfs_remove_by_name_ns(). > If reached the max length, may have problem printed by WARN() in > kernfs_remove_by_name_ns(). > > Signed-off-by: Ma Shimiao Can we use strscpy() instead? Thanks. -- tejun