ceph: use kernel DNS resolver

Change ceph_parse_ips to take either names given as
IP addresses or standard hostnames (e.g. localhost).
The DNS lookup is done using the dns_resolver facility
similar to its use in AFS, NFS, and CIFS.

This patch defines CONFIG_CEPH_LIB_USE_DNS_RESOLVER
that controls if this feature is on or off.

Signed-off-by: Noah Watkins <noahwatkins@gmail.com>
Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Noah Watkins
2011-09-23 11:48:42 -07:00
committed by Sage Weil
parent 49d9224c04
commit ee3b56f265
2 changed files with 116 additions and 12 deletions
+14
View File
@@ -27,3 +27,17 @@ config CEPH_LIB_PRETTYDEBUG
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.