[lvm-devel] [RFC PATCH]: Remove vg_might_exist() and let the caller decide the disposition of FAILED_NOTFOUND.

[Dave Wysochanski]

Peter, this should apply on top of your 11 vg_read() patches posted
1-12-2009.  I've been thinking about ways to clean up vg_might_exist()
and this is one potential route but has a downside.

It makes the code simpler and more readable but does have one shortfall.
Normally when a VG does not exist we print an error message to this
effect.  This patch removes the message.  One approach is to add another
flag (ugh - we just removed one) to this effect.

Might not be possible this go around but perhaps this is close enough to
spur some thoughts of how we could clean this up.
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