NFS: Use kernel DNS resolver [ver #2]
Use the kernel DNS resolver to translate hostnames to IP addresses. Create a
new config option to choose between the legacy DNS resolver and the new
resolver.
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/nfs/dns_resolve.h b/fs/nfs/dns_resolve.h
index a3f0938..199bb55 100644
--- a/fs/nfs/dns_resolve.h
+++ b/fs/nfs/dns_resolve.h
@@ -6,8 +6,20 @@
#define NFS_DNS_HOSTNAME_MAXLEN (128)
+
+#ifdef CONFIG_NFS_USE_KERNEL_DNS
+static inline int nfs_dns_resolver_init(void)
+{
+ return 0;
+}
+
+static inline void nfs_dns_resolver_destroy(void)
+{}
+#else
extern int nfs_dns_resolver_init(void);
extern void nfs_dns_resolver_destroy(void);
+#endif
+
extern ssize_t nfs_dns_resolve_name(char *name, size_t namelen,
struct sockaddr *sa, size_t salen);