2014/1/17 Frank Filz <ffilz...@mindspring.com>: > This looks wonderful and will be useful to the Ganesha user space NFS server > also. > > I do have a couple questions. > > 1. How will this interact with the idea of private locks from the patch set > Jeff Layton has been pushing?
They don't touch each other. > > 2. If a process opens multiple file descriptors with deny modes, will they > conflict with each other (which is the behavior we will want for Ganesha). Yes, a deny mode is associated with file descriptor - so, it will conflict with any other access/deny modes of file descriptors from any process. > > 3. Is there any functionality to upgrade or downgrade the access and deny > modes (thinking in terms of NFS v4 support of OPEN upgrade and > OPEN_DOWNGRADE operations). The proposed patchset doesn't allow to change deny modes after an open is done. But we can add a functionality to let flock syscall change deny modes as on option. -- Best regards, Pavel Shilovsky. -- 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/
