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nfsd41: implement NFS4_SHARE_WANT_NO_DELEG, NFS4_OPEN_DELEGATE_NONE_EXT, why_no_deleg

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Respect client request for not getting a delegation in NFSv4.1
Appropriately return delegation "type" NFS4_OPEN_DELEGATE_NONE_EXT
and WND4_NOT_WANTED reason.

[nfsd41: add missing break when encoding op_why_no_deleg]
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Benny Halevy
2012-02-16 20:57:17 +02:00
committed by J. Bruce Fields
parent 03cfb42025
commit d24433cdc9
4 changed files with 82 additions and 8 deletions
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14
fs/nfsd/nfs4xdr.c
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@@ -2849,6 +2849,20 @@ nfsd4_encode_open(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_op
WRITE32(0); /* XXX: is NULL principal ok? */
ADJUST_ARGS();
break;
case NFS4_OPEN_DELEGATE_NONE_EXT: /* 4.1 */
switch (open->op_why_no_deleg) {
case WND4_CONTENTION:
case WND4_RESOURCE:
RESERVE_SPACE(8);
WRITE32(open->op_why_no_deleg);
WRITE32(0); /* deleg signaling not supported yet */
break;
default:
RESERVE_SPACE(4);
WRITE32(open->op_why_no_deleg);
}
ADJUST_ARGS();
break;
default:
BUG();
}