6.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Olga Kornievskaia kolga@netapp.com
[ Upstream commit 5690eed941ab7e33c3c3d6b850100cabf740f075 ]
If the client sent a synchronous copy and the server replied with ERR_OFFLOAD_NO_REQ indicating that it wants an asynchronous copy instead, the client should retry with asynchronous copy.
Fixes: 539f57b3e0fd ("NFS handle COPY ERR_OFFLOAD_NO_REQS") Signed-off-by: Olga Kornievskaia kolga@netapp.com Signed-off-by: Anna Schumaker Anna.Schumaker@Netapp.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/nfs/nfs42proc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c index 5d7e0511f3513..d5ec3d5568da5 100644 --- a/fs/nfs/nfs42proc.c +++ b/fs/nfs/nfs42proc.c @@ -471,8 +471,9 @@ ssize_t nfs42_proc_copy(struct file *src, loff_t pos_src, continue; } break; - } else if (err == -NFS4ERR_OFFLOAD_NO_REQS && !args.sync) { - args.sync = true; + } else if (err == -NFS4ERR_OFFLOAD_NO_REQS && + args.sync != res.synchronous) { + args.sync = res.synchronous; dst_exception.retry = 1; continue; } else if ((err == -ESTALE ||