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<samba:parameter name="kernel oplocks"
type="boolean"
context="S"
xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
<description>
<para>For UNIXes that support kernel based <smbconfoption name="oplocks"/>
(currently only Linux), this parameter allows the use of them to be
turned on or off. However, this disables Level II oplocks for clients as
the Linux kernel does not support them properly.</para>
<para>Kernel oplocks support allows Samba <parameter moreinfo="none">oplocks
</parameter> to be broken whenever a local UNIX process or NFS operation
accesses a file that <citerefentry><refentrytitle>smbd</refentrytitle>
<manvolnum>8</manvolnum></citerefentry> has oplocked. This allows complete
data consistency between SMB/CIFS, NFS and local file access (and is
a <emphasis>very</emphasis> cool feature :-).</para>
<para>If you do not need this interaction, you should disable the
parameter on Linux to get Level II oplocks and the associated
performance benefit.</para>
<para>This parameter defaults to <constant>no</constant> and is translated
to a no-op on systems that do not have the necessary kernel support.</para>
</description>
<related>oplocks</related>
<related>level2 oplocks</related>
<related>smb2 leases</related>
<value type="default">no</value>
</samba:parameter>
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