linux-kernel - Re: [PATCH] net: add net namespace inode for all net

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20210310114942.3ffb5e1f@gandalf.local.home>
Date:   Wed, 10 Mar 2021 11:49:42 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Tony Lu <tonylu@...ux.alibaba.com>
Cc:     davem@...emloft.net, mingo@...hat.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] net: add net namespace inode for all net_dev events

On Wed, 10 Mar 2021 17:03:40 +0800
Tony Lu <tonylu@...ux.alibaba.com> wrote:

> On Tue, Mar 09, 2021 at 12:40:11PM -0500, Steven Rostedt wrote:


> > The above shows 10 bytes wasted for this event.
> > 


> 
> I use pahole to read vmlinux.o directly with defconfig and
> CONFIG_DEBUG_INFO enabled, the result shows 22 structs prefixed with
> trace_event_raw_ that have at least one hole.
> 

> 
> pahole shows there are 5 holes with 10 bytes in net_dev_start_xmit event.
> 

Oh, an I'm glad that my analysis matched with pahole ;-)

-- Steve