On Wed, May 23, 2007 at 12:09:19PM +0200, Miklos Szeredi wrote:
> Right. After locking vfsmount_lock, mount_dironfile() should recheck
> if there was a race and bail out.
Owww... Not pretty, that...
> I don't think the filesystem ought to try _creating_ a vfsmount. I
> imagine, that the fs has already a kernel-internal mounted for this
> kind of stuff, and it just supplies a dentry from that. The vfsmount
> isn't actually important, but it should be readily available, and it's
> easier to clone from a vfsmount/dentry pair.
I don't get it. What's the point of that exercise, then? When do you
create that kernel-internal mount?
> As I said, the superblock should be persistent, so we'll get a stable
> st_dev for multiple mounts.
OK, but then I guess I don't understand the intended use.
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