Messages in this thread | | | Subject | Re: DoS with POSIX file locks? | From | Trond Myklebust <> | Date | Wed, 22 Mar 2006 10:56:16 -0500 |
| |
On Wed, 2006-03-22 at 13:16 +0100, Miklos Szeredi wrote: > > > > i concur with Trond, there's no sane way to get rid of it w/out > > > > formalizing CLONE_FILES and locks on exec > > > > > > Probably there is. It would involve allocating a separate > > > lock-owner-ID stored in files_struct but separate from it. But it's > > > more complicated than simply not propagating locks on exec in the > > > CLONE_FILES case. > > > > That doesn't solve the fundamental problem. > > > > You would still have to be able to tell a remote server that some locks > > which previously belonged to one owner are being reallocated to several > > owners. > > No changing of lock owner is involved, that's the whole point.
You still don't get it. For NFS/CIFS/... the locks on the server _also_ have a lock owner. The local lockowner is completely and utterly irrelevant.
Cheers, Trond
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |