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NFS: add COPY_NOTIFY operation

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Try using the delegation stateid, then the open stateid.

Only NL4_NETATTR, No support for NL4_NAME and NL4_URL.
Allow only one source server address to be returned for now.

To distinguish between same server copy offload ("intra") and
a copy between different server ("inter"), do a check of server
owner identity and also make sure server is capable of doing
a copy offload.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
This commit is contained in:
Olga Kornievskaia
2019-06-04 16:14:30 -04:00
committed by Olga Kornievskaia
parent f9bdad8ca8
commit 0491567b51
11 changed files with 323 additions and 2 deletions
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fs/nfs/nfs4proc.c
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@@ -9899,6 +9899,7 @@ static const struct nfs4_minor_version_ops nfs_v4_2_minor_ops = {
| NFS_CAP_ALLOCATE
| NFS_CAP_COPY
| NFS_CAP_OFFLOAD_CANCEL
| NFS_CAP_COPY_NOTIFY
| NFS_CAP_DEALLOCATE
| NFS_CAP_SEEK
| NFS_CAP_LAYOUTSTATS