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NFS: CB_OFFLOAD can return NFS4ERR_DELAY

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RFC 7862 permits the callback service to respond to a CB_OFFLOAD
operation with NFS4ERR_DELAY. Use that instead of
NFS4ERR_SERVERFAULT for temporary memory allocation failure, as that
is more consistent with how other operations report memory
allocation failure.

Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
This commit is contained in:
Chuck Lever 2025-01-13 10:32:36 -05:00 • committed by Anna Schumaker
parent 90190ba1c3
commit d2fc83c5df
1 changed files with 1 additions and 1 deletions
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2
fs/nfs/callback_proc.c
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@ -718,7 +718,7 @@ __be32 nfs4_callback_offload(void *data, void *dummy,
copy = kzalloc(sizeof(struct nfs4_copy_state), GFP_KERNEL);
if (!copy)
return htonl(NFS4ERR_SERVERFAULT);
return cpu_to_be32(NFS4ERR_DELAY);
spin_lock(&cps->clp->cl_lock);
rcu_read_lock();