Matthew Mitchell wrote:
>
> Yes, I know that mount can do that now. But automount is spawning the
> second mount before the first one completes, no? Still seems like there
> should be some sort of mutual exclusion around the lookup_mount call. I
> realize our workload is kind of funny in that the processes effectively
> _try_ to synchronize their automount request.
>
autofs 3 relied on the mutural exclusion inherent in mount(2). When
this was changed, it introduced a race condition in autofs 3. I have
asked to add a mount flag to override this new behaviour; I don't know
if one was ever introduced or added to mount(8).
> Has any of this changed in the 4.0-pre autofs? I haven't read through
> its source yet.
autofs 4 uses a different mutural exclusion strategy, so I would *think*
it would not be affected.
-hpa
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