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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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7
fs/nfs/nfs4filelayout.c
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@ -344,8 +344,7 @@ filelayout_read_pagelist(struct nfs_read_data *data)
set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags);
return PNFS_NOT_ATTEMPTED;
}
dprintk("%s USE DS:ip %x %hu\n", __func__,
ntohl(ds->ds_ip_addr), ntohs(ds->ds_port));
dprintk("%s USE DS: %s\n", __func__, ds->ds_remotestr);
/* No multipath support. Use first DS */
data->ds_clp = ds->ds_clp;
@ -384,9 +383,9 @@ filelayout_write_pagelist(struct nfs_write_data *data, int sync)
set_bit(lo_fail_bit(IOMODE_READ), &lseg->pls_layout->plh_flags);
return PNFS_NOT_ATTEMPTED;
}
dprintk("%s ino %lu sync %d req %Zu@%llu DS:%x:%hu\n", __func__,
dprintk("%s ino %lu sync %d req %Zu@%llu DS: %s\n", __func__,
data->inode->i_ino, sync, (size_t) data->args.count, offset,
ntohl(ds->ds_ip_addr), ntohs(ds->ds_port));
ds->ds_remotestr);
data->write_done_cb = filelayout_write_done_cb;
data->ds_clp = ds->ds_clp;