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NFS: pnfs IPv6 support

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Handle ipv6 remote addresses from GETDEVICEINFO

 - supports netid "tcp" for ipv4 and "tcp6" for ipv6 as rfc 5665 specifies
 - added ds_remotestr to avoid having to handle different AFs in every dprintk
 - tested against pynfs 4.1 server, submitting ipv6 support patch to pynfs
 - tested with IPv6 disabled, it compiles cleanly and relies on rpc_pton to
   refuse to accept IPv6 addresses

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Weston Andros Adamson
2011-05-31 18:48:56 -04:00
committed by Trond Myklebust
parent 82c2c8b861
commit c9895cb69b
3 changed files with 194 additions and 79 deletions
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5
fs/nfs/nfs4filelayout.h
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@@ -49,8 +49,9 @@ enum stripetype4 {
/* Individual ip address */
struct nfs4_pnfs_ds {
struct list_head ds_node; /* nfs4_pnfs_dev_hlist dev_dslist */
u32 ds_ip_addr;
u32 ds_port;
struct sockaddr_storage ds_addr;
size_t ds_addrlen;
char *ds_remotestr; /* human readable addr+port */
struct nfs_client *ds_clp;
atomic_t ds_count;
};