Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 40 insertions, 0 deletions

diff --git a/docs-xml/smbdotconf/locking/level2oplocks.xml b/docs-xml/smbdotconf/locking/level2oplocks.xml
new file mode 100644
index 0000000..f411449
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+++ b/docs-xml/smbdotconf/locking/level2oplocks.xml
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+<samba:parameter name="level2 oplocks"
+                 context="S"
+                 type="boolean"
+                 xmlns:samba="http://www.samba.org/samba/DTD/samba-doc">
+<description>
+	<para>This parameter controls whether Samba supports
+	level2 (read-only) oplocks on a share.</para>
+		
+	<para>Level2, or read-only oplocks allow Windows NT clients 
+	that have an oplock on a file to downgrade from a read-write oplock 
+	to a read-only oplock once a second client opens the file (instead 
+	of releasing all oplocks on a second open, as in traditional, 
+	exclusive oplocks). This allows all openers of the file that 
+	support level2 oplocks to cache the file for read-ahead only (ie. 
+	they may not cache writes or lock requests) and increases performance 
+	for many accesses of files that are not commonly written (such as 
+	application .EXE files).</para>
+
+	<para>Once one of the clients which have a read-only oplock 
+	writes to the file all clients are notified (no reply is needed 
+	or waited for) and told to break their oplocks to &quot;none&quot; and 
+	delete any read-ahead caches.</para>
+
+	<para>It is recommended that this parameter be turned on to
+	speed access to shared executables.</para>
+
+	<para>For more discussions on level2 oplocks see the CIFS spec.</para>
+
+	<para>
+	Currently, if <smbconfoption name="kernel oplocks"/> are supported then
+	level2 oplocks are not granted (even if this parameter is set to
+	<constant>yes</constant>).  Note also, the <smbconfoption name="oplocks"/>
+	parameter must be set to <constant>yes</constant> on this share in order for 
+	this parameter to have any effect.</para>
+</description>
+
+<related>oplocks</related>
+<related>kernel oplocks</related>
+<value type="default">yes</value>
+</samba:parameter>