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Subject:	Re: Setting cygdrive prefix to '/' causes disappearing mounts
References:	<20000915232050 DOT A8958 AT cygnus DOT com>
	<Pine DOT GSO DOT 4 DOT 10 DOT 10009160004330 DOT 23836-100000 AT newstaff>
	<20000916002450 DOT A9313 AT cygnus DOT com>
Mime-Version:	1.0 (generated by tm-edit 7.106)
From:	Kazuhiro Fujieda <fujieda AT jaist DOT ac DOT jp>
Date:	18 Sep 2000 05:11:28 +0900
In-Reply-To:	Chris Faylor's message of Sat, 16 Sep 2000 00:24:50 -0400
Message-ID:	<s1swvgau6bz.fsf@jaist.ac.jp>
Lines:	28
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>>> On Sat, 16 Sep 2000 00:24:50 -0400
>>> Chris Faylor <cgf AT cygnus DOT com> said:

> She's also probably the most recent person, excluding me, to look at the
> mount code.   Hmm... with the possible exception of Kazuhiro Fujieda and
> Jason Tishler.

I know the cause of this problem. `mount_info::read_mounts' can
delete all registry keys of which names include the current
cygdrive prefix.  When I rewrited the mount code sometime ago,
I noticed this logic and preserved it.

The mount code doesn't allow mount entries under the cygdrive
prefix at all. But it let us change the cygdrive prefix into a
parent directory of existing mount entries. After that, it
rejects them.

We have two alternatives to solve this problem.
1. Allow mount entries under the cygdrive prefix.
2. Keep the cygdrive prefix away from parent directories of
   existing mount entries.

I can't find possible problems triggered by the former solution.
The latter solution won't let us change the cygdrive prefix into '/'.
____
  | AIST      Kazuhiro Fujieda <fujieda AT jaist DOT ac DOT jp>
  | HOKURIKU  School of Information Science
o_/ 1990      Japan Advanced Institute of Science and Technology

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