doc: update erasure code development doc

With a link to the tracker issue implementing the new indep mode.

Signed-off-by: Loic Dachary <loic@dachary.org>

diff --git a/doc/dev/osd_internals/erasure_coding/pgbackend.rst b/doc/dev/osd_internals/erasure_coding/pgbackend.rst
index 43415ba4f7e7beba4476503ca529f815ae14d053..aea201ee598846ef20b30db3a0f63af89901515e 100644 (file)
--- a/doc/dev/osd_internals/erasure_coding/pgbackend.rst
+++ b/doc/dev/osd_internals/erasure_coding/pgbackend.rst
@@ -255,7 +255,7 @@ than shifting the other elements of the acting set out of position.
 
 Core changes:
 
-- Ensure that crush behaves as above for INDEP.
+- Ensure that crush `behaves as above for INDEP <http://tracker.ceph.com/issues/6900>`_.
 
 Recovery
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