NEWS: Update NEWS with new discard_no_unref option

Signed-off-by: Jean-Louis Dupond <jean-louis@dupond.be>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>

diff --git a/NEWS.rst b/NEWS.rst
index c520a9617767b9867b157d6763a3e968bc57ba69..950b188a8b26ca7996af5230bb58466824e48a88 100644 (file)
--- a/NEWS.rst
+++ b/NEWS.rst
@@ -26,6 +26,13 @@ v9.5.0 (unreleased)
     compatible with all hosts even if their supported physical address sizes
     differ.
 
+  * qemu: Allow configuring the ``discard-no-unref`` feature of ``qcow2`` driver
+
+    The new ``discard_no_unref`` attribute of the ``disk`` ``driver`` element
+    controls whether the ``qcow2`` driver in qemu unrefs clusters inside the
+    image on discard requests. Disabling cluster unrefing decreases fragmentation
+    of the image.
+
 * **Bug fixes**