Merge PR #27412 into master

* refs/pull/27412/head:
	doc: add doc for blacklisting older CephFS clients

Reviewed-by: Barbora Ančincová <bara@redhat.com>
Reviewed-by: Zheng Yan <zyan@redhat.com>

diff --cc .githubmap
index ce99e7ac7ec0a4488d6ed27c4dbf607f8958f2f3,ce99e7ac7ec0a4488d6ed27c4dbf607f8958f2f3..79a3dbb8039481f48abc03589b1765e7ec5a3c02
--- 1/.githubmap
--- 2/.githubmap
+++ b/.githubmap
@@@ -96,3 -96,3 +96,4 @@@ yuvalif Yuval Lifshitz <ylifshit@redhat
  mikechristie Mike Christie <mchristi@redhat.com>
  andrewschoen Andrew Schoen <aschoen@redhat.com>
  mattbenjamin Matt Benjamin <mbenjami@redhat.com>
++baruza Barbora Ančincová <bara@redhat.com>