On Fri, 2011-08-05 at 17:01 -0700, Greg KH wrote: > 2.6.32-longterm review patch. If anyone has any objections, please let us > know. > > ------------------ > > From: Trond Myklebust <trond.mykleb...@netapp.com> > > commit b55c59892e1f3b6c7d4b9ccffb4263e1486fb990 upstream. > > Since rpc_killall_tasks may modify the rpc_task's tk_action field > without any locking, we need to be careful when dereferencing it. [...]
This isn't nearly careful enough to avoid races. You must at least use the ACCESS_ONCE macro, otherwise the compiler can just optimise away the local variable this introduces. Ben.
signature.asc
Description: This is a digitally signed message part
_______________________________________________ stable mailing list stable@linux.kernel.org http://linux.kernel.org/mailman/listinfo/stable
