linux-ext4 - [Bug 92271] Provide a way to really delete files, please

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Message-ID: <bug-92271-13602-AOBlyS3Bjb@https.bugzilla.kernel.org/>
Date:	Thu, 29 Jan 2015 20:59:20 +0000
From:	bugzilla-daemon@...zilla.kernel.org
To:	linux-ext4@...r.kernel.org
Subject: [Bug 92271] Provide a way to really delete files, please

https://bugzilla.kernel.org/show_bug.cgi?id=92271

--- Comment #4 from Alexander Holler <holler@...oftware.de> ---
But I have to admit that ext4 seems to be better than btrfs in regard to that
problem.

At lease the quick test I just did makes me believe that using shred on ext4
might overwrite the previously used blocks.

See bug #92271 to see what I did to quickly test it.

But the problem with SSDs and similiar still exists.

Besides that the FS should somehow promise, that it really has overwritten the
old blocks (even if it hasn't really control about what the device does (if not
using something like "Secure Trim").

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