|From:||Dave Jones <davej-AT-redhat.com>|
|To:||Al Viro <viro-AT-ftp.linux.org.uk>|
|Subject:||Re: 9pfs double kfree|
|Date:||Mon, 6 Mar 2006 02:28:23 -0500|
|Cc:||"David S. Miller" <davem-AT-davemloft.net>, linux-kernel-AT-vger.kernel.org, ericvh-AT-gmail.com, rminnich-AT-lanl.gov|
On Mon, Mar 06, 2006 at 07:23:46AM +0000, Al Viro wrote: > On Sun, Mar 05, 2006 at 11:07:11PM -0800, David S. Miller wrote: > > From: Dave Jones <email@example.com> > > Date: Mon, 6 Mar 2006 02:04:58 -0500 > > > > > (I wish we had a kfree variant that NULL'd the target when it was free'd) > > > > Excellent idea. > > ITYM "poison the pointer variable". Otherwise that sort of crap will go > unnoticed. yeah, even better idea. Just like slab debug, but without the overhead of poisoning the whole object. I wonder if we could get away with something as simple as.. #define kfree(foo) \ __kfree(foo); \ foo = KFREE_POISON; ? Dave -- http://www.codemonkey.org.uk
Copyright © 2006, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds