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Revert "NFSD: Force all NFSv4.2 COPY requests to be synchronous"

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In the past several kernel releases, we've made NFSv4.2 async copy
reliable:
 - The Linux NFS client and server now both implement and use the
   NFSv4.2 OFFLOAD_STATUS operation
 - The Linux NFS server keeps copy stateids around longer
 - The Linux NFS client and server now both implement referring call
   lists

And resilient against DoS:
 - The Linux NFS server limits the number of concurrent async copy
   operations

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Chuck Lever
2025-06-18 08:58:03 -04:00
parent e609e3869e
commit e58691ea4c
1 changed files with 0 additions and 7 deletions
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7
fs/nfsd/nfs4proc.c
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@@ -1917,13 +1917,6 @@ nfsd4_copy(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
struct nfsd42_write_res *result;
__be32 status;
/*
* Currently, async COPY is not reliable. Force all COPY
* requests to be synchronous to avoid client application
* hangs waiting for COPY completion.
*/
nfsd4_copy_set_sync(copy, true);
result = &copy->cp_res;
nfsd_copy_write_verifier((__be32 *)&result->wr_verifier.data, nn);