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NFS: Use kernel DNS resolver [ver #2]

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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>
This commit is contained in:
Bryan Schumaker
2010-08-11 09:37:53 +01:00
committed by Steve French
parent 3694b91a59
commit c2e8139c9f
3 changed files with 52 additions and 0 deletions
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12
fs/nfs/dns_resolve.h
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@@ -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);