Removed checkpoints are still subject to protection period

* remove all the snapshots with rmcp

Quoted 13 lines

Hi,

steps to reproduce:
* create empty filesystem, mount, ensure nilfs_cleanerd is running on it
* configure the nilfs_cleanerd for protection period 3600 (seconds)
* create a bunch of files
* delete the files
* the nilfs_cleanerd does not reclaim space, because checkpoints are protected for 3600 seconds (the expected behavior)
* remove all the snapshots with rmcp
* the problem: the nilfs_cleanerd still does not reclaim space -- it considers the deleted checkpoints as still protected for the duration of 3600 seconds
* once 3600 seconds passes, nilfs_cleanerd normally reclaims space

Quoted 3 lines

Expected behavior: cleanerd reclaims diskspace of deleted checkpoints regardless of protection period.
Rationale: there's no user-visible way of accessing deleted checkpoints, so there is no point in keeping them 'round.
* remove all the snapshots with rmcp

should be:
* remove all the checkpoints with rmcp

tested with linux v3.0-rc4, nilfs-utils v2.0.23

Regards,

Signature · 13 lines

dexen deVries

[[[↓][→]]]

For example, if the first thing in the file is:
   <?kzy irefvba="1.0" rapbqvat="ebg13"?>
an XML parser will recognize that the document is stored in the traditional ROT13 encoding.

(( Joe English, http://www.flightlab.com/~joe/sgml/faq-not.txt ))
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