> Ok. look at the enclosed patch. Does it look any better? The special
> casing for detached mounts ate up some brain cells and made the code
> less simpler.
Yes, this isn't trivial stuff.
I realized one more thing: nd->mnt (the destination vfsmount) might be
detached while waiting for the semaphore. So that needs to be
rechecked after taking the semaphores.
And the same for old_nd->mnt in case of rbind. Though I'm
not sure what the semantics should be in this case:
1) rbind always fails if the source is detached
2) rbind always succeeds, and if the source is detached it just
copies that single mount
I like 2) better. Is there anything against it?
Miklos
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