> I don't remember seeing discussion of this on lkml. Yes it is in > -next...
eg http://lkml.org/lkml/2009/7/31/197 and followups, or search for v2 and earlier patches. > Basically it allows app to 'trace itself'? ...with interesting mmap() > interface, exporting int to userspace, hoping it behaves atomically...? Yes, it allows app to trace what the kernel does to memory mappings. I don't believe there's any real issue to atomicity of mmap'ed memory, since userspace really just tests whether read value is == to old read value or not. - R. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
