On Thursday 2009-03-26 15:00, Kristian Evensen wrote: > >I have a value I would like to share between userspace and kernelspace >(it is store in my target struct and intialized in the user space part >of my module), but when I update it in kernel space it gets the wrong >value. When for example incrementing the value by 1 every time the >rule matches, the values are all messed up (but never larger than the >number of matches/increments). When creating and initializing the >value in the module, it behaves correctly. See the "Writing Netfilter Modules" e-book rev March 26 2009, section 4.6 "SMP problems". I just updated this because xt_quota, which serves as an example, was changed recently to account for the RCU patches, and so the explanation needed to change too. -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
