From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 17872] ext4 does not honour chattr +s attribute
Date: Mon, 6 Sep 2010 02:55:08 GMT
Message-ID: <201009060255.o862t8rZ004494@demeter1.kernel.org>
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Andreas Dilger changed:
What |Removed |Added
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CC| |adilger.kernelbugzilla=
@dilg
| |er.ca
--- Comment #1 from Andreas Dilger =
2010-09-06 02:55:05 ---
Please read the man page carefully:
When a file with the =E2=80=98s=E2=80=99 attribute set is d=
eleted, its blocks are
zeroed and written back to the disk. Note: please make sure to=
read
the bugs and limitations section at the end of this document.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
:
:
BUGS AND LIMITATIONS
The =E2=80=98c=E2=80=99, =E2=80=99s=E2=80=99, and =E2=80=98u=E2=
=80=99 attributes are not honored by the ext2 and ext3
^^^
filesystems as implemented in the current mainline Linux ke=
rnels.
These attributes may be implemented in future versions of the ex=
t2 and
ext3 filesystems.
I agree it is a bug that the _man_page_ doesn't also mention ext4 as NO=
T
zeroing out blocks when "+s" is used.
It makes me wonder why these "features" are mentioned in the man page a=
t all,
since it never worked and there is no plan to make it work. Since this
question comes up on a regular basis, it makes me wonder if it would be=
better
to just remove mention of these options until they are actually impleme=
nted.=20
When they ARE implemented, they should list explicitly which filesystem=
s DO
support those features, rather than redirecting to the end of the docum=
ent.
--=20
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