linux-kernel - Re: [PATCH] tracefs/eventfs: Use root and instance inodes as default ownership

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Date: Sun, 7 Jan 2024 13:32:28 -0500
From: Steven Rostedt <rostedt@...dmis.org>
To: Christian Brauner <brauner@...nel.org>
Cc: LKML <linux-kernel@...r.kernel.org>, Linux Trace Kernel
 <linux-trace-kernel@...r.kernel.org>, Masami Hiramatsu
 <mhiramat@...nel.org>, Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
 Linus Torvalds <torvalds@...ux-foundation.org>, Al Viro
 <viro@...iv.linux.org.uk>, linux-fsdevel@...r.kernel.org, Greg
 Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH] tracefs/eventfs: Use root and instance inodes as
 default ownership

On Sun, 7 Jan 2024 13:29:12 -0500
Steven Rostedt <rostedt@...dmis.org> wrote:

> > 
> > IOW, the inode_permission() in lookup_one_len() that eventfs does is
> > redundant and just wrong.  
> 
> I don't think so.

Just to make it clear. eventfs has nothing to do with mkdir instance/foo.
It exists without that. Although one rationale to do eventfs was so
that the instance directories wouldn't recreate the same 10thousands
event inodes and dentries for every mkdir done.

-- Steve