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diff --git a/kernel/net/ceph/Kconfig b/kernel/net/ceph/Kconfig
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+config CEPH_LIB
+ tristate "Ceph core library"
+ depends on INET
+ select LIBCRC32C
+ select CRYPTO_AES
+ select CRYPTO_CBC
+ select CRYPTO
+ select KEYS
+ default n
+ help
+ Choose Y or M here to include cephlib, which provides the
+ common functionality to both the Ceph filesystem and
+ to the rados block device (rbd).
+
+ More information at http://ceph.newdream.net/.
+
+ If unsure, say N.
+
+config CEPH_LIB_PRETTYDEBUG
+ bool "Include file:line in ceph debug output"
+ depends on CEPH_LIB
+ default n
+ help
+ If you say Y here, debug output will include a filename and
+ line to aid debugging. This increases kernel size and slows
+ execution slightly when debug call sites are enabled (e.g.,
+ via CONFIG_DYNAMIC_DEBUG).
+
+ If unsure, say N.
+
+config CEPH_LIB_USE_DNS_RESOLVER
+ bool "Use in-kernel support for DNS lookup"
+ depends on CEPH_LIB
+ select DNS_RESOLVER
+ default n
+ help
+ If you say Y here, hostnames (e.g. monitor addresses) will
+ be resolved using the CONFIG_DNS_RESOLVER facility.
+
+ For information on how to use CONFIG_DNS_RESOLVER consult
+ Documentation/networking/dns_resolver.txt
+
+ If unsure, say N.
+