On Sun, Sep 23, 2012 at 07:46:24AM -0700, H. Peter Anvin wrote: > >changed right after that operation). Maybe I should put everything to > >procfs, or stick back with ioctl calls? > > The problem as I see it is that you don't know if your process is > the lock holder.
Wait, Peter, this lock is set via ioctl call on the fd obtained from open(ptmx) call, so i fail to see how one can setup such lock without having fd on the hands. When we do checkpoint the processes we expect the user passes us the pid of process which is the leader not some subtree (we can deal with process subtrees too but it is not encouraged ;) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/