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docs-xml: ea support option restricted to user ns

Update documentation to match current behavior.

Signed-off-by: Daniel Kobras <kobras@puzzle-itc.de>
Reviewed-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15186

Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Fri Oct 28 07:24:18 UTC 2022 on sn-devel-184

(cherry picked from commit 69273c3a836ede97c7fde74e2f1fdc84e92ec86f)

Autobuild-User(v4-17-test): Jule Anger <janger@samba.org>
Autobuild-Date(v4-17-test): Mon Oct 31 22:03:46 UTC 2022 on sn-devel-184
This commit is contained in:
Daniel Kobras 2022-10-21 16:40:14 +02:00 committed by Jule Anger
parent f4507b399c
commit 5c32c822ed

View File

@ -14,8 +14,17 @@
attributes (e.g. the getfattr<manvolnum>1</manvolnum> / setfattr<manvolnum>1</manvolnum>
utilities must work).
</para></listitem>
<listitem><para>Access to extended user attributes must be allowed by the underlying
filesystem (e.g. when mounted with a system-dependent option like user_xattr on Linux).
</para></listitem>
</itemizedlist>
<para>
This option exposes the "user" attribute namespace from the underlying filesystem to
clients. In order to match Windows conventions, the namespace prefix ("user.") is
stripped from the attribute name on the client side. The handling of further attribute
namespaces (like "security", "system", or "trusted") is not affected by this option.
</para>
<para>
Note that the SMB protocol allows setting attributes whose value is 64K bytes long,
and that on NTFS, the maximum storage space for extended attributes per file is 64K.
On most UNIX systems (Solaris and ZFS file system being the exception), the limits