linux-ext4 - e4defrag don't work really well

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Date:   Sun, 12 Feb 2023 19:14:23 +0100
From:   Reindl Harald <h.reindl@...lounge.net>
To:     linux-ext4@...r.kernel.org
Subject: e4defrag don't work really well


what's wrong with e4defrag that it pretends it reduced th efragments of 
a file to 1 while in the next "e4defrag -c" (why does that only list 5 
files at all) the same file is listed again with the same old frag count?

----------------------------

[root@...-rhsoft:~]$ e4defrag -c /mnt/data/audio/
e4defrag 1.46.5 (30-Dec-2021)
<Fragmented files>                             now/best       size/ext
1. /mnt/data/audio/Smokie/Solid Ground/Smokie - Little Town Flirt.mp3
                                                  3/1           2389 KB
2. /mnt/data/audio/Ace Frehley/Second Sighting/Ace Frehley - Fallen 
Angel.mp3
                                                  3/1           2389 KB
3. /mnt/data/audio/Mr. Big/Defying Gravity/Mr. Big - Mean To Me.mp3
                                                  3/1           2389 KB
4. /mnt/data/audio/Juice Newton/Quiet Lies/Juice Newton - Im Gonna Be 
Strong.mp3
                                                  3/1           2389 KB
5. /mnt/data/audio/Vicious Rumors/Something Burning/Vicious Rumors - 
Ballhog.mp3
                                                  3/1           2389 KB

----------------------------

[root@...-rhsoft:~]$ e4defrag "/mnt/data/audio/Smokie/Solid 
Ground/Smokie - Little Town Flirt.mp3"
e4defrag 1.46.5 (30-Dec-2021)
ext4 defragmentation for /mnt/data/audio/Smokie/Solid Ground/Smokie - 
Little Town Flirt.mp3
[1/1]/mnt/data/audio/Smokie/Solid Ground/Smokie - Little Town Flirt.mp3: 
        100%    [ OK ]
  Success:                       [1/1]

----------------------------

[root@...-rhsoft:~]$ e4defrag -c /mnt/data/audio/
e4defrag 1.46.5 (30-Dec-2021)
<Fragmented files>                             now/best       size/ext
1. /mnt/data/audio/Smokie/Solid Ground/Smokie - Little Town Flirt.mp3
                                                  3/1           2389 KB
2. /mnt/data/audio/Ace Frehley/Second Sighting/Ace Frehley - Fallen 
Angel.mp3
                                                  3/1           2389 KB
3. /mnt/data/audio/Mr. Big/Defying Gravity/Mr. Big - Mean To Me.mp3
                                                  3/1           2389 KB
4. /mnt/data/audio/Juice Newton/Quiet Lies/Juice Newton - Im Gonna Be 
Strong.mp3
                                                  3/1           2389 KB
5. /mnt/data/audio/Vicious Rumors/Something Burning/Vicious Rumors - 
Ballhog.mp3
                                                  3/1           2389 KB