On Thu, 2010-03-18 at 22:39 +0530, Aneesh Kumar K.V wrote: > The below set of patches implement open by handle support using exportfs > operations. This allows user space application to map a file name to file > handle and later open the file using handle. This should be usable > for userspace NFS [1] and 9P server [2]. XFS already support this with the ioctls > XFS_IOC_PATH_TO_HANDLE and XFS_IOC_OPEN_BY_HANDLE. [...] I think this is quite a poor choice of name. A 'handle' is normally a capability and a counted reference to some resource. In a Linux context 'file handle' suggests to me a pointer to struct file. But as I understand it you are trying to provide an uncounted reference that is still subject to later permission checks. I would suggest something like 'file id', 'file number' (though that could be confused with file descriptor numbers) or 'file cookie'. Ben. -- Ben Hutchings Once a job is fouled up, anything done to improve it makes it worse.
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