From mboxrd@z Thu Jan 1 00:00:00 1970 From: Greg Kroah-Hartman Subject: Re: [PATCH] kernfs: make kernfs_walk_ns() use kernfs_pr_cont_buf[] Date: Fri, 15 Jan 2016 14:05:21 -0800 Message-ID: <20160115220521.GA8722@kroah.com> References: <1449527935-27056-1-git-send-email-tj@kernel.org> <1449527935-27056-3-git-send-email-tj@kernel.org> <20160115173014.GI3520@mtj.duckdns.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Geert Uytterhoeven , "David S. Miller" , pablo-Cap9r6Oaw4JrovVCs/uTlw@public.gmane.org, Patrick McHardy , kadlec-K40Dz/62t/MgiyqX0sVFJYdd74u8MsAO@public.gmane.org, Daniel Borkmann , daniel.wagner-98C5kh4wR6ohFhg+JK9F0w@public.gmane.org, nhorman-2XuSBdqkA4R54TAoqtyWWQ@public.gmane.org, Zefan Li , Johannes Weiner , "netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , netfilter-devel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, coreteam-Cap9r6Oaw4JrovVCs/uTlw@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , kernel-team-b10kYP2dOMg@public.gmane.org, ninasc-b10kYP2dOMg@public.gmane.org, Josh Triplett To: Tejun Heo Return-path: Content-Disposition: inline In-Reply-To: <20160115173014.GI3520-qYNAdHglDFBN0TnZuCh8vA@public.gmane.org> Sender: cgroups-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: netdev.vger.kernel.org On Fri, Jan 15, 2016 at 12:30:14PM -0500, Tejun Heo wrote: > kernfs_walk_ns() uses a static path_buf[PATH_MAX] to separate out path > components. Keeping around the 4k buffer just for kernfs_walk_ns() is > wasteful. This patch makes it piggyback on kernfs_pr_cont_buf[] > instead. This requires kernfs_walk_ns() to hold kernfs_rename_lock. > > Signed-off-by: Tejun Heo > Reported-by: Geert Uytterhoeven > --- > Hello, > > Greg, can you please route this one? Thanks, will take this after 4.5-rc1 is out. greg k-h