On Fri, Nov 15, 2013 at 02:16:19AM -0500, Mouse wrote: > > My understanding is that the new code, by passing shared memory > > through fd is a lot better since [...] > > In those respects, yes. But it's worse in that it requires write > access to a filesystem - a filesystem which supports mmap - with space > enough to hold the shared memory segments, which MIT-SHM doesn't. > > Tradeoffs, tradeoffs.... > > > it doesn't rely on file system permissions to control access, > > Neither does MIT-SHM, I thought. I thought it relied on shared memory > segment permissions (which in some respects look and work like > filesystem permissions, but actually have nothing to do with any > filesystem).
Yes I meant filessystem-like permissions, where a non root uid cannot grant access to a resource to another uid. -- Matthieu Herrb _______________________________________________ [email protected]: X.Org development Archives: http://lists.x.org/archives/xorg-devel Info: http://lists.x.org/mailman/listinfo/xorg-devel
