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  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Wed, 29 Nov 2017 11:33:28 +0100
From:   Giuseppe Scrivano <gscrivan@...hat.com>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-kernel@...r.kernel.org, gregkh@...uxfoundation.org,
        mingo@...nel.org, dave@...olabs.net
Subject: Re: [RFC PATCH] ipc, mqueue: lazy call kern_mount_data in new namespaces

Andrew Morton <akpm@...ux-foundation.org> writes:

> OK, but this simply moves the expense so it happens later on.  Why is
> that better?

the optimization is for new IPC namespaces that don't use mq_open.  In
this case there won't be any kern_mount_data cost at all.

Regards,
Giuseppe

Powered by blists - more mailing lists