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: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <1195501381.27759.127.camel@localhost>
Date:	Mon, 19 Nov 2007 11:43:01 -0800
From:	Dave Hansen <haveblue@...ibm.com>
To:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
Cc:	akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, mbligh@...gle.com
Subject: Re: [RFC 5/7] LTTng instrumentation mm

On Mon, 2007-11-19 at 13:52 -0500, Mathieu Desnoyers wrote:
> > > So I guess the result is a pointer ? Should this be expected ?
> > 
> > Nope.  'pointer - pointer' is an integer.  Just solve this equation for
> > integer:
> > 
> >       'pointer + integer = pointer'
> > 
> 
> Well, using page_to_pfn turns out to be ugly in markers (and in
> printks) then. Depending on the architecture, it will result in either
> an unsigned long (x86_64) or an unsigned int (i386), which corresponds
> to %lu or %u and will print a warning if we don't cast it explicitly. 

Casting the i386 one to be an unconditional 'unsigned long' shouldn't be
an issue.  We don't generally expect pfns to fit into ints anyway. 

-- Dave

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ